[Form 4] PARSONS CORP Insider Trading Activity

Rhea-AI Filing Summary

Lagasse Soo reported acquisition or exercise transactions in this Form 4 filing.

Parsons Corp Chief Human Resources Officer Soo Lagasse received a grant of 3,692 restricted stock units (RSUs), each representing a right to one share of common stock. These RSUs will vest on April 1, 2029. Following this award, Lagasse directly holds 12,496 shares of Parsons common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Lagasse Soo

Role Chief Human Resources Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	3,692	$0.00	--

Holdings After Transaction: Common Stock — 12,496 shares (Direct)

Footnotes (1)

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Key Figures

RSU grant: 3,692 units Holdings after transaction: 12,496 shares Vesting date: April 1, 2029 +1 more

4 metrics

RSU grant 3,692 units Restricted stock units awarded to Soo Lagasse

Holdings after transaction 12,496 shares Total common stock directly held after award

Vesting date April 1, 2029 RSUs vesting schedule for the 3,692-unit award

Transaction price per share $0.00 Equity award granted at no cash cost per unit

Key Terms

restricted stock units, RSUs, contingent right, vest

4 terms

restricted stock units financial

"Represents an award of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

RSUs financial

"Represents an award of restricted stock units ("RSUs"). Each RSU represents a contingent right"

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

contingent right financial

"Each RSU represents a contingent right to receive one share of common stock."

vest financial

"The RSUs will vest on April 1, 2029 and have no expiration date."

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

Form 4 Insider Transactions: What Each Field Means →

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^*

Lagasse Soo

(Last) (First) (Middle)

PARSONS CORPORATION

14291 PARK MEADOW DR., #100

(Street)

CHANTILLY VIRGINIA 20151

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
PARSONS CORP [ PSN ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Human Resources Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/01/2026		A		3,692(1)	A	$0	12,496	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents an award of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest on April 1, 2029 and have no expiration date.

	/s/ John Martinez, as attorney-in-fact	04/02/2026
	** 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)

FAQ

What insider transaction did Parsons (PSN) report for Soo Lagasse?

Parsons reported that Chief Human Resources Officer Soo Lagasse received a grant of 3,692 restricted stock units. Each RSU represents a contingent right to one share of common stock, awarded as part of equity compensation rather than an open-market purchase.

How many Parsons (PSN) shares does Soo Lagasse hold after this Form 4?

After the reported grant, Soo Lagasse directly holds 12,496 shares of Parsons common stock. This total includes the newly awarded 3,692 restricted stock units that convert to shares upon vesting according to the terms of the award.

What are the terms of the 3,692 RSUs granted to Soo Lagasse at Parsons (PSN)?

The 3,692 RSUs granted to Soo Lagasse each represent a contingent right to receive one share of Parsons common stock. According to the filing, these restricted stock units will vest on April 1, 2029 and have no stated expiration date.

Is the Parsons (PSN) Form 4 transaction a purchase or a compensation award?

The Form 4 transaction is a compensation-related award, not an open-market purchase. Parsons granted Soo Lagasse 3,692 restricted stock units at no cash price, categorized as a grant or award acquisition under the SEC’s transaction code A.

When will Soo Lagasse’s granted Parsons (PSN) RSUs become shares?

The restricted stock units granted to Soo Lagasse are scheduled to vest on April 1, 2029. Upon vesting, each RSU entitles the holder to receive one share of Parsons common stock, assuming all award conditions are satisfied at that time.