Leidos (LDOS) 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 |
|---|
Download these transactions as CSV No account, no sign-up. The data is public: it comes from SEC Form 4 filings.
Leidos Holdings, Inc. (LDOS) insider buying and selling: no purchases, 8 sales
142 Form 4 Table I transactions filed with the SEC by Leidos Holdings, Inc. insiders between 2025-08-27 and 2026-10-09 (15-month history): 0 open-market purchases and 8 sales, plus 134 transactions under other Form 4 codes, broken down one by one below. The largest open-market trade is a sale of $2.2M by Hull Stephen Edward on 2025-09-04.
Leidos insider buying and selling over the last 12 months
Between Oct 21, 2025 and Oct 20, 2026, Leidos insiders filed 6 sales worth $3.2M on the open market, and no purchases.
The biggest seller was Porter Elizabeth A (Sector President): $1.4M in 3 sales, out of 3 different sellers.
The largest trade of the period was a sale of $1.4M on Aug 11, 2026, by Geer Noel B (Director). Form 4 on sec.gov (0001336920-26-000255).
Of the 6 sales, 3 (50%, $1.4M) carry the 10b5-1 plan flag on the Form 4, meaning they were scheduled months ahead; the other 3 do not.
The last three months show 2 sales, against 1 in the three before. The latest sale from Sep 1, 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. Leidos has more sales than 12 of the other 84, ranks 74 of 85 by net dollars sold, and 32 of the 85 have at least one purchase.
The 20 most important trades
With no open-market purchases, the table starts with LDOS's sales, largest first. The full history is in the tool above, already searched.
See all 142 LDOS trades in the full history →
| Trade date | Filed | Insider | Role | Amount | Code | Filing |
|---|---|---|---|---|---|---|
| 2025-09-04 | 2025-09-04 | Hull Stephen Edward | Sector President | $2.2M | S — Open-market saleForm 4 footnoteF2 The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices from $177.64 to $178.545 inclusive. The reporting person undertakes to providing to Leidos Holdings, Inc., any security holder of Leidos Holdings, Inc., or the staff of the Securities Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the aforementioned range. | SEC |
| 2026-08-11 | 2026-08-13 | Geer Noel B | Director | $1.4M | S — Open-market sale | SEC |
| 2026-01-20 | 2026-01-22 | Porter Elizabeth A | Sector President | $577k | S — Open-market sale (scheduled 10b5-1)2 Form 4 footnotesF1 This transaction was executed pursuant to a trading plan entered into by the reporting person on September 12, 2025, in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. F2 The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices from $192.17 to $192.36 inclusive. The reporting person undertakes to providing to Leidos Holdings, Inc., any security holder of Leidos Holdings, Inc., or the staff of the Securities Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the aforementioned range. | SEC |
| 2025-12-19 | 2025-12-22 | Porter Elizabeth A | Sector President | $543k | S — Open-market sale (scheduled 10b5-1)3 Form 4 footnotesF1 This transaction was executed pursuant to a trading plan entered into by the reporting person on September 12, 2025, in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. F2 The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices from $180.29 to $181.2115 inclusive. The reporting person undertakes to providing to Leidos Holdings, Inc., any security holder of Leidos Holdings, Inc., or the staff of the Securities Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the aforementioned range. F3 The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices from $181.29 to $181.99 inclusive. The reporting person undertakes to providing to Leidos Holdings, Inc., any security holder of Leidos Holdings, Inc., or the staff of the Securities Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the aforementioned range. | SEC |
| 2025-08-25 | 2025-08-27 | Stevens Roy E | Sector President | $493k | S — Open-market saleForm 4 footnoteF2 The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices from $181.4805 to $181.815 inclusive. The reporting person undertakes to providing to Leidos Holdings, Inc., any security holder of Leidos Holdings, Inc., or the staff of the Securities Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the aforementioned range. | SEC |
| 2026-04-07 | 2026-04-08 | Porter Elizabeth A | Sector President | $318k | S — Open-market sale (scheduled 10b5-1)2 Form 4 footnotesF1 This transaction was executed pursuant to a trading plan entered into by the reporting person on September 12, 2025, in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. F2 The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices from $158.17 to $159.10 inclusive. The reporting person undertakes to providing to Leidos Holdings, Inc., any security holder of Leidos Holdings, Inc., or the staff of the Securities Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the aforementioned range. | SEC |
| 2026-05-07 | 2026-05-08 | May Gary Stephen | Director | $197k | S — Open-market saleForm 4 footnoteF2 The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices from $132.50 to $132.90 inclusive. The reporting person undertakes to providing to Leidos Holdings, Inc., any security holder of Leidos Holdings, Inc., or the staff of the Securities Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the aforementioned range. | SEC |
| 2026-09-01 | 2026-09-02 | May Gary Stephen | Director | $141k | S — Open-market saleForm 4 footnoteF1 The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices from $140.67 to $141.195 inclusive. The reporting person undertakes to providing to Leidos Holdings, Inc., any security holder of Leidos Holdings, Inc., or the staff of the Securities Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the aforementioned range. | SEC |
| 2026-02-12 | 2026-02-17 | Bell Thomas Arthur | CEO | $3.3M | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF2 These shares were withheld by the Company to satisfy the reporting person's tax obligation associated with the settlement of performance shares. This share withholding was authorized in the performance share award agreement. | SEC |
| 2025-09-02 | 2025-09-04 | Hull Stephen Edward | Sector President | $1.1M | M — Option exercise | SEC |
| 2026-02-12 | 2026-02-17 | Cage Christopher R | Chief Financial Officer | $921k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF2 These shares were withheld by the Company to satisfy the reporting person's tax obligation associated with the settlement of performance shares. This share withholding was authorized in the performance share award agreement. | SEC |
| 2025-08-25 | 2025-08-27 | Stevens Roy E | Sector President | $876k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF1 Represents shares of common stock withheld by the issuer in connection with the option exercise to cover the exercise price and associated fees. | SEC |
| 2026-02-12 | 2026-02-17 | Porter Elizabeth A | Sector President | $735k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF2 These shares were withheld by the Company to satisfy the reporting person's tax obligation associated with the settlement of performance shares. This share withholding was authorized in the performance share award agreement. | SEC |
| 2026-02-12 | 2026-02-17 | Stevens Roy E | Sector President | $621k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF2 These shares were withheld by the Company to satisfy the reporting person's tax obligation associated with the settlement of performance shares. This share withholding was authorized in the performance share award agreement. | SEC |
| 2026-08-04 | 2026-08-06 | Porter Elizabeth A | Sector President | $605k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF1 These shares were withheld by the Company to satisfy the reporting person's tax obligation associated with previously reported awards of restricted stock units. This share withholding was authorized in the restricted stock award agreement. | SEC |
| 2026-03-04 | 2026-03-05 | Geer Noel B | Director | $587k | M — Option exercise | SEC |
| 2026-03-07 | 2026-03-10 | Bell Thomas Arthur | CEO | $577k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF2 These shares were withheld by the Company to satisfy the reporting person's tax obligation associated with previously reported awards of restricted stock units. This share withholding was authorized in the restricted stock award agreement. | SEC |
| 2026-08-04 | 2026-08-06 | Cage Christopher R | Chief Financial Officer | $544k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF1 These shares were withheld by the Company to satisfy the reporting person's tax obligation associated with previously reported awards of restricted stock units. This share withholding was authorized in the restricted stock award agreement. | SEC |
| 2026-08-04 | 2026-08-06 | Stevens Roy E | Sector President | $544k | F — Tax withholding (shares surrendered for taxes)Form 4 footnoteF1 These shares were withheld by the Company to satisfy the reporting person's tax obligation associated with previously reported awards of restricted stock units. This share withholding was authorized in the restricted stock award agreement. | SEC |
| 2025-08-25 | 2025-08-27 | Stevens Roy E | Sector President | $470k | M — Option exercise | SEC |
The period balance: money in, money out
In the Form 4 filings submitted between Aug 27, 2025 and Oct 9, 2026 there is not one open-market purchase of Leidos Holdings, Inc.: 8 sales worth $5.9M and zero dollars bought.
Only codes P and S count, where an insider puts in or takes out their own money. A selling balance like Leidos Holdings, Inc.'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 |
|---|---|---|---|
| A | Grant or award | 64 | $0 |
| F | Tax withholding (shares surrendered for taxes) | 56 | $14.1M |
| M | Option exercise | 12 | $4.3M |
| S | Open-market sale | 8 | $5.9M |
| G | Gift | 2 | $0 |
| Total | Everything filed in the period | 142 | $24.3M |
66 of the 142 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, 21 distinct people or entities have filed Leidos Holdings, Inc. transactions: none bought on the open market and 5 sold. Counted by CIK, the fixed number the SEC gives each filer, and not by name, which each filer types their own way.
| Filer | Role | Transactions | Bought (count) | Sold (count) | Last filed |
|---|---|---|---|---|---|
| Hull Stephen Edward | Sector President | 11 | — | $2.2M (1) | 2026-03-10 |
| Porter Elizabeth A | Sector President | 13 | — | $1.4M (3) | 2026-08-06 |
| Geer Noel B | Director | 4 | — | $1.4M (1) | 2026-08-13 |
| Stevens Roy E | Sector President | 16 | — | $493k (1) | 2026-10-02 |
| May Gary Stephen | Director | 5 | — | $338k (2) | 2026-09-02 |
| Cage Christopher R | Chief Financial Officer | 17 | — | — | 2026-10-02 |
| Kraemer Harry M Jansen Jr | Director | 14 | — | — | 2026-10-09 |
| Antal Daniel J. | EVP, General Counsel | 11 | — | — | 2026-10-02 |
Shown here are the 8 who moved the most money, out of 21. 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 Aug 2025: 0 purchases and 1 sale, worth $493k. 7 of the 15 months have none.
| Month | Purchases | Amount | Sales | Amount |
|---|---|---|---|---|
| Aug 2025 | 0 | $0 | 1 | $493k |
| Sep 2025 | 0 | $0 | 1 | $2.2M |
| Oct 2025 | 0 | $0 | 0 | $0 |
| Nov 2025 | 0 | $0 | 0 | $0 |
| Dec 2025 | 0 | $0 | 1 | $543k |
| Jan 2026 | 0 | $0 | 1 | $577k |
| Feb 2026 | 0 | $0 | 0 | $0 |
| Mar 2026 | 0 | $0 | 0 | $0 |
| Apr 2026 | 0 | $0 | 1 | $318k |
| May 2026 | 0 | $0 | 1 | $197k |
| Jun 2026 | 0 | $0 | 0 | $0 |
| Jul 2026 | 0 | $0 | 0 | $0 |
| Aug 2026 | 0 | $0 | 1 | $1.4M |
| Sep 2026 | 0 | $0 | 1 | $141k |
| 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.
Leidos Holdings, Inc. (LDOS) analysis page →
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How to read this data
3 of the 8 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. Leidos has no open-market purchase (code P) in the history, the most common case in the S&P 500: insiders are already paid in stock. The latest filing is from Oct 9, 2026, and a Form 4 arrives up to two business days after the trade.
16 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.