[Form 4] Penumbra Inc Insider Trading Activity

Rhea-AI Filing Summary

Penumbra Inc. reported insider equity activity by its Chief Financial Officer, Maggie Yuen. On November 17, 2025, she was granted 3,580 restricted stock units (RSUs) under Penumbra's Amended and Restated 2014 Equity Incentive Plan. One quarter of these RSUs will vest each year on November 15, beginning in 2026, subject to her continued service.

On November 15, 2025, Penumbra withheld 364 shares of common stock and separately 327 shares to cover tax withholding obligations related to vesting RSUs. After these transactions and the new grant, Yuen beneficially owned 16,556 shares of Penumbra common stock directly.

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^*

Yuen Maggie

(Last) (First) (Middle)

ONE PENUMBRA PLACE

(Street)

ALAMEDA CA 94502

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Penumbra Inc [ PEN ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
11/15/2025

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	11/15/2025		F(1)		364	D	$280.07	13,303(2)	D
Common Stock	11/15/2025		F(1)		327	D	$280.07	12,976(2)	D
Common Stock	11/17/2025		A		3,580(3)	A	$0	16,556(2)	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. Shares were withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units (RSUs) granted to the Reporting Person.

2. A portion of these shares is subject to vesting.

3. On November 17, 2025, the Reporting Person was granted 3,580 RSUs under the Issuer's Amended and Restated 2014 Equity Incentive Plan, of which 1/4 of the RSUs will vest equally on an annual basis, beginning on November 15, 2026, subject to continued service by the Reporting Person on the applicable vesting date.

Remarks:

	/s/ Johanna Roberts, as attorney-in-fact for Maggie Yuen	11/18/2025
	** 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.

FAQ

What insider transaction did Penumbra (PEN) disclose for its CFO?

Penumbra disclosed that its Chief Financial Officer, Maggie Yuen, received a grant of 3,580 restricted stock units (RSUs) on November 17, 2025, and had shares withheld to cover taxes on vesting RSUs.

How many Penumbra (PEN) RSUs were granted to the CFO and under what plan?

The CFO was granted 3,580 RSUs on November 17, 2025 under Penumbra's Amended and Restated 2014 Equity Incentive Plan.

What is the vesting schedule for Maggie Yuen’s RSUs at Penumbra (PEN)?

For the 3,580 RSUs granted on November 17, 2025, 1/4 will vest each year on November 15, starting November 15, 2026, subject to her continued service.

Why were some Penumbra (PEN) shares withheld from the CFO?

Penumbra withheld 364 shares and 327 shares of common stock on November 15, 2025 to satisfy tax withholding obligations arising from the vesting of RSUs.

How many Penumbra (PEN) shares does the CFO own after these transactions?

After the reported transactions, Maggie Yuen beneficially owned 16,556 shares of Penumbra common stock directly.

Is the Penumbra (PEN) CFO considered an officer in this filing?

Yes. The filing identifies Maggie Yuen as an officer of Penumbra, serving as the company’s Chief Financial Officer.