Parsons (NYSE: PSN) HR chief discloses 8,804-share stake

Rhea-AI Filing Summary

Parsons Corp Chief Human Resources Officer Soo Lagasse filed an initial Form 3 reporting beneficial ownership of 8,804 shares of the company’s common stock. This total includes 683 restricted stock units that will vest over time, each representing the right to receive one common share if employment conditions are met.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Lagasse Soo

Role Chief Human Resources Officer

Type	Security	Shares	Price	Value
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 8,804 shares (Direct)

Footnotes (1)

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Key Figures

Common stock beneficially owned: 8,804 shares Restricted stock units: 683 RSUs

2 metrics

Common stock beneficially owned 8,804 shares Total common shares following reported holdings

Restricted stock units 683 RSUs RSUs vest over time, each for one common share

Key Terms

Form 3, restricted stock units, beneficial ownership, vest

4 terms

Form 3 regulatory

"Chief Human Resources Officer Soo Lagasse filed an initial Form 3 reporting beneficial ownership"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

restricted stock units financial

"Includes 683 restricted stock units ("RSUs") that will vest in accordance with the terms"

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.

beneficial ownership financial

"filed an initial Form 3 reporting beneficial ownership of 8,804 shares of the company’s common stock"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

vest financial

"RSUs that will vest in accordance with the terms of the underlying awards"

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.

Understanding Insider Trading Forms →

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

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. Date of Event Requiring Statement (Month/Day/Year)
04/01/2026

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

3a. Foreign Trading Symbol

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

4. 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

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	8,804(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 683 restricted stock units ("RSUs") that will vest in accordance with the terms of the underlying awards, subject to the Reporting Person's continued employment with the Issuer on each such vesting date. Each RSU represents a contingent right to receive one share of the Issuer's common stock.

Remarks:

Exhibit 24 - Power of Attorney.

	/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 5 (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 3: SEC 1473 (03-26)

FAQ

What does the Parsons (PSN) Form 3 filed by Soo Lagasse show?

The Form 3 shows Chief Human Resources Officer Soo Lagasse’s initial beneficial ownership of 8,804 shares of Parsons common stock. This total includes 683 restricted stock units, which convert into shares only if future vesting and employment conditions are satisfied.

How many Parsons (PSN) shares does Soo Lagasse beneficially own?

Soo Lagasse beneficially owns 8,804 shares of Parsons common stock according to the Form 3. This figure includes both currently held shares and 683 restricted stock units that represent a future right to receive additional shares upon vesting.

What are the 683 RSUs disclosed for Parsons (PSN) executive Soo Lagasse?

The filing states that Soo Lagasse holds 683 restricted stock units (RSUs). Each RSU represents a contingent right to receive one Parsons common share, vesting in line with award terms and requiring continued employment on each applicable vesting date.

Does the Parsons (PSN) Form 3 show any recent stock transactions?

No specific buy or sell transactions are reported; the Form 3 reflects initial holdings. It lists 8,804 shares of Parsons common stock, including 683 RSUs, establishing Soo Lagasse’s starting ownership position as a reporting officer.

What role does Soo Lagasse hold at Parsons (PSN) in this Form 3?

The Form 3 identifies Soo Lagasse as Chief Human Resources Officer of Parsons Corp. As an executive officer, Lagasse must report equity holdings in Parsons, including common shares and restricted stock units subject to continued employment-based vesting.