Leidos (LDOS) Sector President sells 2,000 shares under 10b5-1 plan

Q: What did Leidos (LDOS) executive Elizabeth Porter report in this Form 4 filing?

Elizabeth A. Porter, a Sector President at Leidos (LDOS) , reported selling 2,000 shares of common stock in open-market transactions. These trades were made under a pre-arranged Rule 10b5-1 trading plan and left her holding 49,476 shares directly.

Q: How many Leidos (LDOS) shares did Elizabeth Porter sell and at what prices?

Elizabeth Porter sold a total of 2,000 Leidos shares on April 7, 2026 . The reported weighted average prices were about $158.75 for 1,915 shares and $159.33 for 85 shares, within a price range from $158.17 to $159.10 .

Q: Were Elizabeth Porter’s Leidos (LDOS) stock sales made under a 10b5-1 plan?

Yes. The filing states the sales were executed under a Rule 10b5-1 trading plan that Porter entered into on September 12, 2025 . Such plans allow insiders to schedule trades in advance, reducing discretion over timing once the plan is in place.

Q: What type of transactions are reported in this Leidos (LDOS) Form 4 for Elizabeth Porter?

The Form 4 reports open-market sales of Leidos common stock, coded as “S” transactions. Both entries are non-derivative, meaning they involve direct common stock, not options or other derivatives, and are classified as open-market or private sales .

Q: How is the sale price reported for Elizabeth Porter’s Leidos (LDOS) trades?

The sale price is reported as a weighted average price for each transaction block. The footnote explains that individual shares were sold in multiple trades between $158.17 and $159.10 , and detailed price-by-trade information is available upon request.

Filing Impact

(High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Leidos Holdings, Inc. Sector President Elizabeth A. Porter sold 2,000 shares of common stock in open-market transactions. The trades occurred on April 7, 2026, at weighted average prices around $158.75 and $159.33, within a range from $158.17 to $159.10.

After these sales, Porter directly held 49,476 shares of Leidos common stock. The filing notes that the transactions were executed under a pre-arranged Rule 10b5-1 trading plan adopted on September 12, 2025, indicating they were scheduled in advance rather than timed discretionarily.

Insider Trade Summary 10b5-1

Net Seller: 2,000 shares ($317,555)

Net Sell 2 txns

Insider Porter Elizabeth A

Role Sector President

Sold 2,000 shs ($318K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,915	$158.7534	$304K
Sale	Common Stock	85	$159.325	$14K

Holdings After Transaction: Common Stock — 49,561 shares (Direct)

Footnotes (1)

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. 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.

Key Figures

Shares sold: 2,000 shares Weighted average sale price (1,915 shares): $158.7534 per share Weighted average sale price (85 shares): $159.3250 per share +4 more

7 metrics

Shares sold 2,000 shares Total common stock sold on April 7, 2026

Weighted average sale price (1,915 shares) $158.7534 per share Open-market sale of 1,915 shares on April 7, 2026

Weighted average sale price (85 shares) $159.3250 per share Open-market sale of 85 shares on April 7, 2026

Price range of trades $158.17–$159.10 per share Range of individual trade prices within reported blocks

Holdings after transactions 49,476 shares Direct Leidos common stock held after final sale

Trading plan adoption date September 12, 2025 Date Elizabeth Porter entered 10b5-1 trading plan

Net share change -2,000 shares Net sell direction in transaction summary

Key Terms

Rule 10b5-1, weighted average price, open-market sale, Common Stock, +1 more

5 terms

Rule 10b5-1 regulatory

"transaction was executed pursuant to a trading plan entered into by the reporting person ... in accordance with Rule 10b5-1"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

""security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

non-derivative financial

""transaction_type": "non-derivative""

Form 4 Insider Transactions: What Each Field Means →

04/08/2026 - 04:44 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Porter Elizabeth A

(Last)

(First)

(Middle)

1750 PRESIDENTS STREET

(Street)

RESTON

VIRGINIA

20190

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Leidos Holdings, Inc. [ LDOS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Sector President

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/07/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/07/2026		S⁽¹⁾		1,915	D	$158.7534⁽²⁾	49,561	D
Common Stock	04/07/2026		S⁽¹⁾		85	D	$159.325	49,476	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. 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.

2. 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.

Remarks:

	/s/ Ramune M. Kligys by PoA of Elizabeth M. Porter	04/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What did Leidos (LDOS) executive Elizabeth Porter report in this Form 4 filing?

Elizabeth A. Porter, a Sector President at Leidos (LDOS), reported selling 2,000 shares of common stock in open-market transactions. These trades were made under a pre-arranged Rule 10b5-1 trading plan and left her holding 49,476 shares directly.

How many Leidos (LDOS) shares did Elizabeth Porter sell and at what prices?

Elizabeth Porter sold a total of 2,000 Leidos shares on April 7, 2026. The reported weighted average prices were about $158.75 for 1,915 shares and $159.33 for 85 shares, within a price range from $158.17 to $159.10.

How many Leidos (LDOS) shares does Elizabeth Porter hold after the reported sales?

Following the reported transactions, Elizabeth Porter directly owns 49,476 shares of Leidos common stock. Before the final 85-share sale, her direct holdings were 49,561 shares, indicating the Form 4 provides updated ownership after each transaction.

Were Elizabeth Porter’s Leidos (LDOS) stock sales made under a 10b5-1 plan?

Yes. The filing states the sales were executed under a Rule 10b5-1 trading plan that Porter entered into on September 12, 2025. Such plans allow insiders to schedule trades in advance, reducing discretion over timing once the plan is in place.

What type of transactions are reported in this Leidos (LDOS) Form 4 for Elizabeth Porter?

The Form 4 reports open-market sales of Leidos common stock, coded as “S” transactions. Both entries are non-derivative, meaning they involve direct common stock, not options or other derivatives, and are classified as open-market or private sales.

How is the sale price reported for Elizabeth Porter’s Leidos (LDOS) trades?

The sale price is reported as a weighted average price for each transaction block. The footnote explains that individual shares were sold in multiple trades between $158.17 and $159.10, and detailed price-by-trade information is available upon request.