Amphenol (APH) insider buying and selling
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.
| Date | Ticker | Insider | Role | Shares | Price | Amount | % of stake | Type / filing |
|---|
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Amphenol Corporation (APH) insider buying and selling: 1 purchase, 23 sales
70 Form 4 Table I transactions filed with the SEC by Amphenol Corporation insiders between 2025-08-25 and 2026-08-06 (15-month history): 1 open-market purchase and 23 sales, plus 46 transactions under other Form 4 codes, broken down one by one below. The largest open-market trade is a sale of $111.0M by Norwitt Richard Adam on 2026-07-31.
Amphenol insider buying and selling over the last 12 months
Between Oct 21, 2025 and Oct 20, 2026, Amphenol insiders filed 1 purchase worth $1.3M and 19 sales worth $511.9M on the open market. The net balance is on the sell side: $510.6M more sold than bought.
The biggest buyer was Livingston Robert (Director): $1.3M in 1 purchase, the only buyer. The biggest seller was Norwitt Richard Adam (President & CEO): $219.3M in 5 sales, out of 8 different sellers.
The largest trade of the period was a sale of $111.0M on Jul 31, 2026, by Norwitt Richard Adam (President & CEO). Form 4 on sec.gov (0001104659-26-089782).
None of the 19 sales carries the 10b5-1 plan flag on the Form 4 (sales scheduled months ahead).
The last three months show 0 purchases and 4 sales, against 0 and 3 in the three before. The latest purchase is from Feb 5, 2026; the latest sale from Aug 5, 2026.
Against its sector (Technology, 85 companies with an insider page on this site), over the same dates the median is 22 sales and 0 purchases on the open market. Amphenol has more sales than 36 of the other 84, ranks 12 of 85 by net dollars sold, and 32 of the 85 have at least one purchase, Amphenol included.
The 20 most important trades
The only open-market purchase first, then the rest, each type from largest to smallest. The full history is in the tool above, already searched.
See all 70 APH trades in the full history →
| Trade date | Filed | Insider | Role | Amount | Code | Filing |
|---|---|---|---|---|---|---|
| 2026-02-05 | 2026-02-06 | Livingston Robert | Director | $1.3M | P — Open-market purchase2 Form 4 footnotesF1 The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades at prices ranging from $128.2928 to $128.7052. | SEC |
| 2026-07-31 | 2026-08-03 | Norwitt Richard Adam | President & CEO | $111.0M | S — Open-market sale Indirect holding, through: By Norwitt Family Trust 3 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $160.50 to $162.37. F3 This transaction was executed in multiple trades ranging from $160.50 to $166.3050. | SEC |
| 2026-02-12 | 2026-02-13 | Norwitt Richard Adam | President & CEO | $89.6M | S — Open-market sale Indirect holding, through: By Norwitt Family Trust 3 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $145.295 to $148.77. F3 This transaction was executed in multiple trades ranging from $145.2400 to $148.24. | SEC |
| 2025-10-24 | 2025-10-27 | Walter Luc | President, HES Division | $49.2M | S — Open-market sale2 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades at prices ranging from $133.5000 to $136.8375. | SEC |
| 2025-11-11 | 2025-11-13 | Lampo Craig A | SR VP & CFO | $42.7M | S — Open-market sale Indirect holding, through: By Lampo Family Trust 3 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $142.5000 to $143.8400. F3 This transaction was executed in multiple trades ranging from $143.5000 to $143.5708. | SEC |
| 2026-08-04 | 2026-08-05 | Lampo Craig A | EVP& CFO | $32.3M | S — Open-market sale2 Form 4 footnotesF2 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F3 This transaction was executed in multiple trades ranging from $166.53 to $168.00. | SEC |
| 2025-08-22 | 2025-08-25 | Lampo Craig A | SR VP & CFO | $22.1M | S — Open-market sale3 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $109.55 to $110.94. F3 Includes 25,695 shares transferred from the reporting person's 2024 #1 GRAT since the date of his last Form 4. | SEC |
| 2026-08-05 | 2026-08-05 | Silverman David M | EVP, Human Resources | $20.9M | S — Open-market sale2 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $174.00 to $174.50. | SEC |
| 2025-12-02 | 2025-12-02 | Straub Peter | President, ISS Division | $18.7M | S — Open-market sale2 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $141.5200 to $141.9050. | SEC |
| 2025-10-31 | 2025-11-03 | Ivas Michael R. | VP & Corporate Controller | $17.0M | S — Open-market sale2 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $140.85 to $141.5701 | SEC |
| 2025-11-03 | 2025-11-03 | Silverman David M | Senior VP, Human Resources | $16.9M | S — Open-market sale2 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades at prices ranging from $141.00 to $141.50. | SEC |
| 2025-11-05 | 2025-11-06 | Ivas Michael R. | VP & Corporate Controller | $16.8M | S — Open-market sale2 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $139.5000 to $140.6225 | SEC |
| 2025-10-29 | 2025-10-30 | D'Amico Lance E | Sr. VP, Secretary & GenCounsel | $16.8M | S — Open-market sale2 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $139.71 to $140.53. | SEC |
| 2026-08-03 | 2026-08-05 | D'Amico Lance E | EVP, Secretary & GenCounsel | $16.2M | S — Open-market sale Indirect holding, through: By Lance E. D'Amico 2024 Irrevocable Trust 3 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $161.80 to $162.1210. F3 This transaction was executed in multiple trades ranging from $161.0600 to $162.0300. | SEC |
| 2026-02-18 | 2026-02-19 | Lampo Craig A | Executive VP & CFO | $15.0M | S — Open-market sale2 Form 4 footnotesF3 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F4 This transaction was executed in multiple trades ranging from $149.36 to $150.59. | SEC |
| 2025-12-02 | 2025-12-02 | Doherty William J | President, CS Division | $11.4M | S — Open-market sale2 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $141.9450 to $142.1900. | SEC |
| 2025-10-29 | 2025-10-30 | Doherty William J | President, CS Division | $11.3M | S — Open-market sale2 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $141.00 to $141.1550. | SEC |
| 2025-08-25 | 2025-08-26 | Silverman David M | Senior VP, Human Resources | $11.0M | S — Open-market sale2 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades at prices ranging from $109.90 to $110.59. | SEC |
| 2025-09-08 | 2025-09-09 | Straub Peter | President, ISS Division | $9.7M | S — Open-market sale2 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $110.55 to $111.035. | SEC |
| 2026-05-01 | 2026-05-05 | Norwitt Richard Adam | President & CEO | $8.8M | S — Open-market sale2 Form 4 footnotesF1 The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 This transaction was executed in multiple trades ranging from $143.50 to $146.30. | SEC |
The period balance: money in, money out
Across the Form 4 filings submitted between Aug 25, 2025 and Aug 6, 2026, Amphenol Corporation open-market activity adds up to 1 purchase worth $1.3M and 23 sales worth $559.2M. The net balance is $557.9M 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 Amphenol Corporation'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
| Code | What it means | Trades | Reported amount |
|---|---|---|---|
| M | Option exercise | 25 | $95.8M |
| S | Open-market sale | 23 | $559.2M |
| G | Gift | 12 | $0 |
| A | Grant or award | 8 | $75k |
| J | Other transaction (explained in the filing) | 1 | $0 |
| P | Open-market purchase | 1 | $1.3M |
| Total | Everything filed in the period | 70 | $656.4M |
20 of the 70 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, 16 distinct people or entities have filed Amphenol Corporation transactions: 1 bought on the open market and 8 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 8 who sold on the open market (23 sales in all), the three biggest sellers account for $385.0M of the $559.2M: 69% of the money in three people.
| Filer | Role | Transactions | Bought (count) | Sold (count) | Last filed |
|---|---|---|---|---|---|
| Norwitt Richard Adam | President & CEO | 13 | — | $219.3M (5) | 2026-08-03 |
| Lampo Craig A | EVP& CFO | 15 | — | $116.5M (5) | 2026-08-06 |
| Walter Luc | President, HES Division | 4 | — | $49.2M (1) | 2025-10-27 |
| Silverman David M | EVP, Human Resources | 6 | — | $48.9M (3) | 2026-08-05 |
| D'Amico Lance E | EVP, Secretary & GenCounsel | 6 | — | $40.5M (3) | 2026-08-05 |
| Ivas Michael R. | VP & Corporate Controller | 8 | — | $33.8M (2) | 2026-02-05 |
| Straub Peter | President, ISS Division | 4 | — | $28.5M (2) | 2025-12-02 |
| Doherty William J | President, CS Division | 4 | — | $22.6M (2) | 2025-12-02 |
Shown here are the 8 who moved the most money, out of 16. 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 Oct 2025: 0 purchases and 4 sales, worth $94.2M. 6 of the 15 months have none.
| Month | Purchases | Amount | Sales | Amount |
|---|---|---|---|---|
| Aug 2025 | 0 | $0 | 3 | $37.5M |
| Sep 2025 | 0 | $0 | 1 | $9.7M |
| Oct 2025 | 0 | $0 | 4 | $94.2M |
| Nov 2025 | 0 | $0 | 3 | $76.4M |
| Dec 2025 | 0 | $0 | 2 | $30.1M |
| Jan 2026 | 0 | $0 | 0 | $0 |
| Feb 2026 | 1 | $1.3M | 3 | $112.1M |
| Mar 2026 | 0 | $0 | 0 | $0 |
| Apr 2026 | 0 | $0 | 0 | $0 |
| May 2026 | 0 | $0 | 3 | $18.7M |
| Jun 2026 | 0 | $0 | 0 | $0 |
| Jul 2026 | 0 | $0 | 1 | $111.0M |
| Aug 2026 | 0 | $0 | 3 | $69.4M |
| Sep 2026 | 0 | $0 | 0 | $0 |
| Oct 2026 | 0 | $0 | 0 | $0 |
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.
Amphenol Corporation (APH) analysis page →
Other Technology companies with insider trades
All 500 are listed in the section index →
Which insiders are buying their own company stock →
How to read this data
None of the 19 sales in the table is flagged as scheduled (10b5-1 plan), the kind signed months ahead and executed automatically. Amphenol's single open-market purchase (code P) is the rare signal: insiders are already paid in stock, so buying more means putting in their own money. The latest filing is from Aug 6, 2026, and a Form 4 arrives up to two business days after the trade.
20 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.
Guide: Insider buying · all guides
What is behind these trades
The concepts on this page, explained from scratch in the Academy. Free, no account.
- What the efficiency hypothesis says and what it does NOT sayIf an insider's purchase is public and anyone can read it, is there any information left in it? That is the exact question that brings people here.
- Who really moves the market: the types of investorWho sits on the other side of each order, and where a company's own insiders fit among them.
- Supply, demand and price: why it rises and falls constantlyHow a piece of news ends up inside the price, and why the reaction to a filed sale is rarely the one you would expect.
Source: SEC EDGAR Form 4. This is a list of public facts, not financial advice or a recommendation to buy or sell.