SEC Form 4
Leidos Holdings, Inc. (LDOS) insider trading
In the 12 months to Oct 23, 2026, 3 LDOS insiders reported open-market sales of $3.2M across 6 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $3.2M
- 6 filings · 3 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 3 of 6
- $1.4M of $3.2M sold (45%)
Who traded LDOS, and when
- Sale
- Sale, pre-arranged (10b5-1)
LDOS daily close from Oct 23, 2025 to Oct 23, 2026, between $100.00 and $199.55, last $136.47. 6 sale and 0 purchase filings by 3 insiders, marked at their filing dates. Elizabeth A. Porter, Sector President: sold $1.4M across 3 filings, first filed Dec 22, 2025, last Apr 8, 2026. Noel B. Geer, Director: sold $1.4M across 1 filing, first filed Aug 13, 2026, last Aug 13, 2026. Gary Stephen May, Director: sold $337.9K across 2 filings, first filed May 8, 2026, last Sep 2, 2026.
Largest mark · tap a row for others
Noel B. Geer · Director
Sale $1,406,620
10,000 shares at $140.66 avg
Filed Aug 13, 2026 · traded Aug 11
Close on filing date $142.61
Elizabeth A. Porter · Sector President
Sector President
$1.4M soldNoel B. Geer · Director
Director
$1.4M soldGary Stephen May · Director
Director
$337.9K soldHas Leidos Holdings, Inc.'s CEO sold stock?
No. Thomas Arthur Bell (CEO) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
6 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Elizabeth A. Porter | Sector President | $1.4M | — | 3 | 100% of sales | |
| Noel B. Geer | Director | $1.4M | — | 1 | — | |
| Gary Stephen May | Director | $337.9K | — | 2 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Gary Stephen May Director | Sale | 1,000 | $140.85 | $140.8K | 10,204 | |
traded | Noel B. Geer Director | Sale | 10,000 | $140.66 | $1.4M | 34,274 | |
traded | Gary Stephen May Director | Sale | 1,484 | $132.75 | $197.0K | 10,137 | |
traded | Elizabeth A. Porter Sector President | SalePre-arranged (10b5-1) | 2,000 | $158.78 | $317.6K | 49,476 | |
traded | Elizabeth A. Porter Sector President | SalePre-arranged (10b5-1) | 3,000 | $192.21 | $576.6K | 38,575 | |
traded | Elizabeth A. Porter Sector President | SalePre-arranged (10b5-1) | 3,000 | $181.04 | $543.1K | 41,575 |
GET /stocks/filings/vX/form-4?tickers=LDOS&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"LDOS"
],
"issuer_cik": "0001336920",
"owner_cik": "0001635110",
"accession_number": "0001336920-26-000258",
"form_type": "4",
"filing_date": "2026-09-02",
"period_of_report": "2026-09-01",
"issuer_name": "Leidos Holdings, Inc.",
"issuer_trading_symbol": "LDOS",
"owner_name": "May Gary Stephen",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-09-01",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1000,
"transaction_price_per_share": 140.8453,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 10204,
"transaction_value": 140845.30000000002,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "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."
}
]
},
{
"tickers": [
"LDOS"
],
"issuer_cik": "0001336920",
"owner_cik": "0001216858",
"accession_number": "0001336920-26-000255",
"form_type": "4",
"filing_date": "2026-08-13",
"period_of_report": "2026-08-11",
"issuer_name": "Leidos Holdings, Inc.",
"issuer_trading_symbol": "LDOS",
"owner_name": "Geer Noel B",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-11",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 8500,
"transaction_price_per_share": 140.59,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 35773.8435,
"transaction_value": 1195015,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 136 records
- Option exercises10 records
- Tax withholding58 records
- Grants and awards66 records
- Gifts2 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for LDOS every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.