Penguin Solutions insider: 107,958 PSUs vest; tax withholding 54,822

Rhea-AI Filing Summary

Penguin Solutions (PENG) reported an insider equity event for President & CEO and Director Mark Adams. On 10/14/2025, 107,958 performance-based RSUs vested at $0 following Compensation Committee certification. To cover taxes, 54,822 shares were surrendered to the issuer at $22.32; no shares were sold for cash. After these transactions, Adams beneficially owns 987,115 shares directly, plus 29,640 shares indirectly via The Adams Family Trust.

Insights

Equity compensation analyst

PSU vesting with tax withholding; routine, neutral impact.

The event reflects standard equity compensation: 107,958 PSUs vested upon confirmed performance and continued service, recorded as an acquisition at $0. The Form 4 lists a surrender of 54,822 shares coded “F,” which denotes shares withheld to satisfy tax obligations tied to the vesting.

Because the shares were withheld by the issuer for taxes, the filing states no shares were sold. Post-transaction holdings are 987,115 shares directly and 29,640 indirectly via a trust. The impact on float is modest and depends on future dispositions not addressed here.

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

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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^*

Adams Mark

(Last) (First) (Middle)

C/O PENGUIN SOLUTIONS, INC.

45800 NORTHPORT LOOP WEST

(Street)

FREMONT CA 94538

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Penguin Solutions, Inc. [ PENG ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
10/14/2025

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

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 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	10/14/2025		A(1)		107,958	A	$0	1,041,937	D
Common Stock	10/14/2025		F(2)		54,822	D	$22.32	987,115	D
Common Stock								29,640	I	The Adams Family Trust

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. On September 26, 2022, the reporting person was granted performance-based restricted stock units ("PSUs"), the vesting of which was (i) tied to the achievement of total stockholder return goals relative to the performance of the median company in the Russell 2000 Index following the end of a given three-year performance period, and (ii) subject to the reporting person's continued employment through the date of certification of performance by the Compensation Committee of the Issuer's Board of Directors (the "Committee"). On October 14, 2025, the Committee certified the performance goal achievement and determined that 107,958 PSUs were earned by the reporting person and vested as of such date.

2. Reflects shares surrendered to the Issuer to satisfy tax withholding obligations in connection with vesting of PSUs. No shares were sold.

Remarks:

	/s/ Anne Kuykendall as attorney-in-fact for Mark Adams	10/16/2025
	** Signature of Reporting Person	Date
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