Penguin Solutions CFO acquires 33,502 stock units

The award’s vesting schedule starts with a 25% installment on October 20, 2027, followed by 12 equal quarterly installments.

Rhea-AI Filing Summary

Penguin Solutions, Inc. (PENG) SVP and CFO Stephen Cumming acquired 33,502 restricted stock units on October 6, 2026, and the reported post-transaction position was 33,502 RSUs. The units vest 25% on October 20, 2027, with the remainder vesting quarterly in 12 equal installments.

Insider Trade Summary

Grant/Award: 33,502 shares

Grant/Award 1 txn

Insider Cumming Stephen

Role SVP and CFO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	33,502	$0.00	$0.00

Holdings After Transaction: Common Stock — 33,502 shares (Direct)

Footnotes (1)

1. F1. Represents restricted stock units ("RSUs") that will vest as to 25% on October 20, 2027, with the remainder vesting quarterly thereafter in 12 equal installments, subject to the recipient's continued service through each applicable vesting date.

Key Figures

Restricted stock units acquired: 33,502 restricted stock units Reported post-transaction position: 33,502 RSUs Initial vesting: 25% +2 more

5 metrics

Restricted stock units acquired 33,502 restricted stock units October 6, 2026

Reported post-transaction position 33,502 RSUs After the October 6, 2026 acquisition

Initial vesting 25% October 20, 2027

Remaining vesting installments 12 equal quarterly installments After the initial vesting

First vesting date October 20, 2027 25% of the RSUs vest on this date

Key Terms

restricted stock units, vest, installments

3 terms

restricted stock units financial

"Represents restricted stock units"

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.

vest financial

"will vest as to 25%"

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.

installments financial

"in 12 equal installments"

Installments are a series of scheduled partial payments that together cover a larger amount owed or due, like paying for a purchase or loan in weekly or monthly pieces rather than all at once. For investors, installments matter because they change when cash moves between parties, affect a company’s or counterparty’s short-term cash flow and risk of missed payments, and can influence valuation or perceived financial stability much like spreading the cost of a car over monthly payments.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many RSUs did PENG CFO Stephen Cumming acquire?

Stephen Cumming acquired 33,502 restricted stock units on October 6, 2026; his reported post-transaction position was 33,502 RSUs.

What condition applies to PENG CFO Stephen Cumming’s RSU vesting?

The RSUs vest subject to Stephen Cumming’s continued service through each applicable vesting date.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/08/2026 - 04:48 PM Accepted by SEC EDGAR 10/08/2026 - 04:47 PM Learn about SEC filing dates

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^*

Cumming Stephen

(Last) (First) (Middle)

C/O PENGUIN SOLUTIONS, INC.

45800 NORTHPORT LOOP W.

(Street)

FREMONT CALIFORNIA 94538

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP and CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/06/2026

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	10/06/2026		A		33,502(1)	A	$0	33,502	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 restricted stock units ("RSUs") that will vest as to 25% on October 20, 2027, with the remainder vesting quarterly thereafter in 12 equal installments, subject to the recipient's continued service through each applicable vesting date.

Remarks:

	/s/ Anne Kuykendall as attorney-in-fact for Stephen Cumming	10/08/2026
	** 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)