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TransDigm (TDG) insider buying and selling

Get an email when an insider buys Open-market purchases are rare: the insider is spending their own money. One email the day the Form 4 lands, with the filing linked. It needs a free account, and the alert arrives off: you turn it on yourself.

Every Table I transaction reported by directors and officers of S&P 500 companies on SEC Form 4 filings (2 business days to file): each row labeled with its official transaction code, nothing filtered out beforehand.

Open-market purchases (code P) are the rare signal, in green; sales (code S) are common and often pre-scheduled (10b5-1). Table II (derivatives) is not included: its prices are exercise prices, not market values. Guide: insider buying.

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Insider transactions filed on SEC Form 4: date, company, insider, role, shares, price, amount, percentage of the holding and transaction type.
Date Ticker Insider Role Shares Price Amount % of stake Type / filing

Download these transactions as CSV No account, no sign-up. The data is public: it comes from SEC Form 4 filings.

TransDigm Group Incorporated (TDG) insider buying and selling: 3 purchases, 49 sales

126 Form 4 Table I transactions filed with the SEC by TransDigm Group Incorporated insiders between 2025-08-27 and 2026-10-16 (15-month history): 3 open-market purchases and 49 sales, plus 74 transactions under other Form 4 codes, broken down one by one below. The largest open-market trade is a sale of $121.5M by Small Robert J on 2025-12-09.

TransDigm insider buying and selling over the last 12 months

Between Oct 21, 2025 and Oct 20, 2026, TransDigm insiders filed 3 purchases worth $3.8M and 43 sales worth $494.0M on the open market. The net balance is on the sell side: $490.2M more sold than bought.

The biggest buyer was Lisman Michael (President & CEO): $3.8M in 2 purchases, out of 2 different buyers. The biggest seller was Stein Kevin M (Director): $186.5M in 13 sales, out of 5 different sellers.

The largest trade of the period was a sale of $121.5M on Dec 9, 2025, by Small Robert J (Director). Form 4 on sec.gov (0000919574-25-007305).

Of the 43 sales, 37 (86%, $321.4M) carry the 10b5-1 plan flag on the Form 4, meaning they were scheduled months ahead; the other 6 do not.

The last three months show 0 purchases and 4 sales, against 0 and 9 in the three before. The latest purchase is from Feb 25, 2026; the latest sale from Oct 15, 2026.

Against its sector (Industrials, 75 companies with an insider page on this site), over the same dates the median is 8 sales and 0 purchases on the open market. TransDigm has more sales than 72 of the other 74, ranks 2 of 75 by net dollars sold, and 28 of the 75 have at least one purchase, TransDigm included.

The 20 most important trades

The 3 open-market purchases first, then the rest, each type from largest to smallest. The full history is in the tool above, already searched.

See all 126 TDG trades in the full history →

Trade dateFiledInsiderRoleAmountCodeFiling
2025-11-142025-11-17Lisman MichaelPresident & CEO$2.6MP — Open-market purchase

Indirect holding, through: Michael Lisman Declaration of Trust dated January 31, 2023

5 Form 4 footnotes

F2 The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1,336.8350 to $1,337.7575. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

F3 The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1,338.1500 to $1,338.5650. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

F4 The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1,341.4900 to $1,341.7100. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

F5 The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1,342.7350 to $1,343.3100. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

F6 The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1,344.3700 to $1,344.7800. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

SEC
2026-02-062026-02-09Lisman MichaelPresident & CEO$1.2MP — Open-market purchaseSEC
2026-02-252026-02-27Small Robert JDirector$1kP — Open-market purchase

Indirect holding, through: By Stockbridge Fund, L.P.

2 Form 4 footnotes

F1 The purchase of the Issuer's common stock reported herein was matchable under Section 16(b) of the Securities Exchange Act of 1934, to the extent of one (1) share, with the sale of one (1) share of the Issuer's common stock at a price of $1,335.72 per share by an entity in which the Reporting Person has a pecuniary interest. The Reporting Person has paid to the Issuer an amount representing the difference between the purchase and sale prices of the two transactions with respect to such one share of the Issuer's common stock.

F2 Represents shares held by Stockbridge Fund, L.P. ("SF"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC ("SA") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC
2025-12-092025-12-09Small Robert JDirector$121.5MS — Open-market sale

Indirect holding, through: By Stockbridge Fund, L.P.; By Stockbridge Partners LLC

2 Form 4 footnotes

F1 Represents shares held by Stockbridge Fund, L.P. ("SF"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC ("SA") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

F2 Represents shares held by Stockbridge Partners LLC ("SP") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC
2026-02-022026-02-03Stein Kevin MDirector$52.6MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: Fortuna Trust dated June 1, 2018

19 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,407.1000 - $1,407.8900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,410.9300 - $1,411.2300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,413.3000 - $1,414.2900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,414.3000 - $1,414.6900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,415.3000 - $1,416.1000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,416.3300 - $1,416.4600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,417.4150 - $1,417.5900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,418.8500 - $1,419.7000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,420.0200 - $1,420.8800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F11 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,421.0200 - $1,422.0100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F12 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,422.0200 - $1,423.0100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F13 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,423.0200 - $1,424.0100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F14 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,424.0300 - $1,425.0200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F15 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,425.0300 - $1,426.0200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F16 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,426.0300 - $1,427.0100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F17 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,427.0300 - $1,428.0200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F18 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,428.0300 - $1,429.0200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F19 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,429.0500 - $1,430.0400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F20 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,430.0500 - $1,431.0300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2026-01-052026-01-06Stein Kevin MDirector$34.3MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: Fortuna Trust dated June 1, 2018

19 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,364.4650 - $1,365.0000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,366.5600 - $1,367.4900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,367.5700 - $1,368.5500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,368.5800 - $1,369.5700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,369.5800 - $1,370.5600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,370.5800 - $1,371.5200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,371.6300 - $1,372.6200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,372.6300 - $1,373.5700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,373.7400 - $1,374.7300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F11 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,374.7750 - $1,375.7200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F12 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,375.7900 - $1,376.7600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F13 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,376.8600 - $1,377.7800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F14 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,377.9500 - $1,378.9200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F15 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,379.0000 - $1,379.9800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F16 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,380.0000 - $1,380.9800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F17 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,381.0200 - $1,381.9400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F18 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,382.1600 - $1,383.0500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F19 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,383.6400 - $1,384.4900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F20 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,387.0300 - $1,387.0400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2026-01-082026-01-09Stein Kevin MDirector$24.4MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: Fortuna Trust dated June 1, 2018

6 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,405.0000 - $1,405.9900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,406.0000 - $1,406.9950. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,407.0000 - $1,407.9150. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,408.1500 - $1,409.1100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,409.1600 - $1,410.0800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,410.4600 - $1,411.4350. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2025-12-042025-12-05Stein Kevin MDirector$23.9MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: Fortuna Trust dated June 1, 2018

8 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,360.000 - $1,360.9900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,361.0000- $1,361.9450. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,362.02000- $1,363.0000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,363.0400- $1,364.0200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,364.0400- $1,365.0100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,365.0400- $1,366.0300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,366.1100- $1,366.5300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,367.2200 - $1,367.2300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2026-02-022026-02-03Stein Kevin MDirector$15.9MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: Fortuna Trust dated June 1, 2018

9 Form 4 footnotes

F1 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,431.0500 - $1,431.9900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,432.1000 - $1,432.9400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,433.1200 - $1,434.0800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,434.1400 - $1,435.1200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,435.1400 - $1,436.1350. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,436.1400 - $1,437.0900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,437.1800 - $1,438.0400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,438.1800 - $1,439.1400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,439.2000 - $1,440.1700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2026-06-182026-06-22Howley W NicholasDirector$13.4MS — Open-market sale

Indirect holding, through: W. Nicholas Howley Family Trust u/a/d 4/23/99

20 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,305.0000 - $1,305.2100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,307.4850 - $1,308.3400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,308.7700 - $1,309.0450. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,314.1300 - $1,315.1000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,315.2900 - $1,316.2800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,316.2900 - $1,317.2800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,317.3150 - $1,318.2900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,318.3600 - $1,319.3050. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,319.3600 - $1,320.3500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F11 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,320.4000 - $1,321.2800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F12 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,321.4700 - $1,322.1500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F13 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,322.8500 - $1,323.8300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F14 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,323.8700 - $1,324.8600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F15 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,325.3250 - $1,326.0000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F16 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,326.7500 - $1,327.7300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F17 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,328.3250 - $1,329.1800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F18 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,330.3500 - $1,331.1900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F19 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,333.4500 - $1,334.2750. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F20 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,334.7100 - $1,335.1550. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F21 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,336.9750 - $1,337.0550. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2026-06-182026-06-22Howley W NicholasDirector$13.4MS — Open-market sale

Indirect holding, through: W. Nicholas Howley Family Trust u/a/d 4/23/99

20 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,305.0000 - $1,305.2100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,307.4850 - $1,308.3400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,308.7700 - $1,309.0450. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,314.1300 - $1,315.1000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,315.2900 - $1,316.2800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,316.2900 - $1,317.2800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,317.3150 - $1,318.2900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,318.3600 - $1,319.3050. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,319.3600 - $1,320.3500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F11 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,320.4000 - $1,321.2800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F12 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,321.4700 - $1,322.1500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F13 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,322.8500 - $1,323.8300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F14 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,323.8700 - $1,324.8600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F15 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,325.3250 - $1,326.0000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F16 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,326.7500 - $1,327.7300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F17 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,328.3250 - $1,329.1800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F18 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,330.3500 - $1,331.1900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F19 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,333.4500 - $1,334.2750. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F20 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,334.7100 - $1,335.1550. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F21 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,336.9750 - $1,337.0550. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2026-06-182026-06-22Howley W NicholasDirector$13.4MS — Open-market sale

Indirect holding, through: W. Nicholas Howley Family Trust u/a/d 4/23/99

20 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,305.0000 - $1,305.2100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,307.4850 - $1,308.3400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,308.7700 - $1,309.0450. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,314.1300 - $1,315.1000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,315.2900 - $1,316.2800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,316.2900 - $1,317.2800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,317.3150 - $1,318.2900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,318.3600 - $1,319.3050. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,319.3600 - $1,320.3500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F11 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,320.4000 - $1,321.2800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F12 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,321.4700 - $1,322.1500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F13 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,322.8500 - $1,323.8300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F14 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,323.8700 - $1,324.8600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F15 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,325.3250 - $1,326.0000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F16 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,326.7500 - $1,327.7300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F17 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,328.3250 - $1,329.1800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F18 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,330.3500 - $1,331.1900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F19 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,333.4500 - $1,334.2750. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F20 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,334.7100 - $1,335.1550. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F21 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,336.9750 - $1,337.0550. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2026-02-182026-02-20Howley W NicholasDirector$13.3MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: W. Nicholas Howley Family Trust u/a/d 4/23/99

13 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,298.9600 - $1,299.8950. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,300.0000 - $1,300.7000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,301.0400 - $1,301.5100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,302.1000 - $1,302.7150. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,303.2100 - $1,304.1700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,304.3100 - $1,305.3000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,305.6000 - $1,306.3800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,306.7200- $1,307.5500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,307.8400 - $1,308.6700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F11 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,308.9400 - $1,309.8000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F12 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,310.0000 - $1,310.9100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F13 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,311.0000 - $1,311.8500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F14 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,312.0000 - $1,312.2400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2026-04-202026-04-21Howley W NicholasDirector$12.8MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: W. Nicholas Howley Family Trust u/a/d 4/23/99

10 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,260.0000 - $1,260.4800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,261.1800 - $1,262.1200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,262.2500 - $1,263.1700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,263.3700 - $1,264.1000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,264.5500 - $1,265.5300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,265.6650 - $1,266.6550. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,266.7200 - $1,267.6800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,267.7700 - $1,268.7600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,268.9300 - $1,269.8800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F11 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,270.4000 - $1,270.4900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2026-08-182026-08-19Howley W NicholasDirector$12.5MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: W. Nicholas Howley Family Trust u/a/d 4/23/99

14 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,225.1750 - $1,226.0000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,227.1550 - $1,227.9700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,228.4900 - $1,229.4800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,229.4900 - $1,230.1400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,230.6000 - $1,231.5800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,231.6100 - $1,232.5100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,232.8900 - $1,233.6700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,234.4000 - $1,235.2100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,235.4300 - $1,236.6700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F11 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,236.7100 - $1,237.4600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F12 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,237.7100 - $1,238.4200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F13 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,238.8700 - $1,239.8500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F14 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,239.8700 - $1,240.7500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F15 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,240.9200 - $1,241.4600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2026-07-202026-07-21Howley W NicholasDirector$12.3MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: W. Nicholas Howley Family Trust u/a/d 4/23/99

12 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,209.9000 - $1,210.8300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,211.0200 - $1,211.7700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,212.3300 - $1,213.2000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,213.4000 - $1,214.3400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,214.5200 - $1,215.3000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,215.5500 - $1,215.7200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,216.7700 - $1,217.4100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,218.0600 - $1,218.9800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,219.1300 - $1,220.0300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F11 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,220.2000 - $1,220.7500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F12 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,222.2550 - $1,222.6400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F13 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,223.8800 - $1,224.4600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2026-03-182026-03-19Howley W NicholasDirector$12.3MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: W. Nicholas Howley Family Trust u/a/d 4/23/99

21 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,204.7700 - $1,205.7375. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,205.7750 - $1,206.7400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,206.8700 - $1,207.8300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,207.9700 - $1,208.8250. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,209.0000 - $1,209.9450. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,210.0100 - $1,211.0000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,211.0150 - $1,212.0000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,212.0350 - $1,213.0100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,213.0400 - $1,214.0150. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F11 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,214.0700 - $1,215.0550. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F12 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,215.1175 - $1,215.5300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F13 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,216.3200 - $1,216.9800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F14 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,217.4800 - $1,217.6300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F15 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,218.7800 - $1,218.8400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F16 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,220.1850 - $1,220.8200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F17 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,221.2350 - $1,222.0500. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F18 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,222.2900 - $1,222.4200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F19 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,224.7900 - $1,225.2200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F20 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,228.1150 - $1,228.5250. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F21 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,229.1600 - $1,230.0700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F22 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,230.9050 - $1,231.7350. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

SEC
2026-05-182026-05-19Howley W NicholasDirector$12.0MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: W. Nicholas Howley Family Trust u/a/d 4/23/99

22 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,145.0100 - $1,145.3100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,146.3700 - $1,146.4400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,149.9500 - $1,150.8450. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,165.0000 - $1,165.6600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,166.4500 - $1,167.4000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,167.7900 - $1,168.7200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,168.9600 - $1,169.6100. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,170.0000 - $1,170.6800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F10 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,172.0000 - $1,172.3600. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F11 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,174.0600 - $1,174.9900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F12 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,175.4600 - $1,176.3800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F13 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,176.5000 - $1,177.1200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F14 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,177.9900 - $1,178.5200. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F15 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,179.3800 - $1,180.1900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F16 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,180.6400 - $1,181.5900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F17 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,182.2300 - $1,183.0000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F18 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,183.2500 - $1,184.0700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F19 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,184.2800 - $1,185.2000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F20 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,185.5000 - $1,186.3950. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F21 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,186.5700 - $1,187.5000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F22 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,187.6700 - $1,188.6400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F23 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,188.7700 - $1,189.2700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC
2026-01-142026-01-16Stein Kevin MDirector$10.7MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: Fortuna Trust dated June 1, 2018

3 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,405.0000 - $1,405.9700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,406.0000 - $1,406.9900. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,407.0100 - $1,408.0000. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price

SEC
2025-11-182025-11-19Stein Kevin MDirector$9.8MS — Open-market sale (scheduled 10b5-1)

Indirect holding, through: Fortuna Trust dated June 1, 2018

5 Form 4 footnotes

F2 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,360.0000- $1,360.9999. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,361.2300- $1,362.2299. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,362.2400- $1,363.2399. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,363.2600- $1,364.2599. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,364.5850- $1,365.5849. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC

The period balance: money in, money out

Across the Form 4 filings submitted between Aug 27, 2025 and Oct 16, 2026, TransDigm Group Incorporated open-market activity adds up to 3 purchases worth $3.8M and 49 sales worth $517.6M. The net balance is $513.8M on the sell side.

Only codes P and S count, where an insider puts in or takes out their own money. A selling balance like TransDigm Group Incorporated's is the norm in the S&P 500, where much of the pay comes as stock. It is not a recommendation to buy or sell: it is what was filed.

Every transaction, code by code

CodeWhat it meansTradesReported amount
SOpen-market sale49$517.6M
MOption exercise47$56.5M
AGrant or award24$1.2M
POpen-market purchase3$3.8M
GGift2$0
JOther transaction (explained in the filing)1$0
TotalEverything filed in the period126$579.1M

3 of the 126 rows carry no usable amount on the Form 4: they count as trades and add $0. The code labels come from the SEC index.

Who has traded

Over the 15 months of history, 15 distinct people or entities have filed TransDigm Group Incorporated transactions: 2 bought on the open market and 6 sold. Counted by CIK, the fixed number the SEC gives each filer, and not by name, which each filer types their own way.

Of the 6 who sold on the open market (49 sales in all), the three biggest sellers account for $446.4M of the $517.6M: 86% of the money in three people.

FilerRoleTransactionsBought (count)Sold (count)Last filed
Stein Kevin MDirector25—$186.5M (13)2026-02-03
Small Robert JDirector9$1k (1)$133.9M (3)2026-09-21
Howley W NicholasDirector26—$126.0M (12)2026-09-21
Reiss JoelCo-Chief Operating Officer29—$66.3M (15)2026-10-16
Lisman MichaelPresident & CEO2$3.8M (2)—2026-02-09
Graff MichaelDirector6—$2.5M (1)2026-09-21
Murphy Patrick JosephCo-Chief Operating Officer11—$2.4M (5)2026-02-25
Barr DavidDirector3——2026-09-21

Shown here are the 8 who moved the most money, out of 15. The rest are in the full history, one link above. The name links to all their trades, in any company. "Transactions" counts any code; the money, open market only. Role: from their latest filing.

Month by month

By the month the trade was executed, not the month it was filed; months with no trades show zero. The busiest month was Nov 2025: 1 purchase and 9 sales, worth $35.5M. None of the 15 months is blank.

MonthPurchasesAmountSalesAmount
Aug 20250$01$2.5M
Sep 20250$03$13.7M
Oct 20250$04$9.1M
Nov 20251$2.6M9$32.9M
Dec 20250$05$156.9M
Jan 20260$05$75.5M
Feb 20262$1.2M5$87.3M
Mar 20260$02$17.1M
Apr 20260$02$17.8M
May 20260$02$16.5M
Jun 20260$04$45.1M
Jul 20260$03$17.1M
Aug 20260$02$17.4M
Sep 20260$01$4.3M
Oct 20260$01$4.6M

The last month may be partial: a Form 4 is filed up to two business days later. The table does not say whether the pattern is good or bad; it says when it happened.

TransDigm Group Incorporated (TDG) analysis page →

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How to read this data

13 of the 17 sales in the table are flagged as scheduled (10b5-1 plan): signed months ahead and executed automatically, so they say nothing about what the insider thinks today. TransDigm's 3 open-market purchases (code P) are the rare signal: insiders are already paid in stock, so buying more means putting in their own money. The latest filing is from Oct 16, 2026, and a Form 4 arrives up to two business days after the trade.

19 of the 20 rows in the table carry footnotes from the Form 4 itself, folded into the code column and copied verbatim; a row with no footnote means the filing has none.

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Source: SEC EDGAR Form 4. This is a list of public facts, not financial advice or a recommendation to buy or sell.

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