Grant4

Penumbra Inc

Total Value

Filing Date

Aug 19, 2026

1 transaction

Trade Summary

On Aug 17, 2026, Narayan Shruthi, President, reported $0 of Penumbra Inc (PEN) across 1 transaction. The filing covers Common Stock and reflects balanced net activity of $0. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Insider Information

Name: Narayan Shruthi
Role: President
Location: ALAMEDA, CA

Filing Details

Filing Date: Aug 19, 2026
Transaction Date: Aug 17, 2026
Accession Number: 0002086163-26-000008
Form Type: 4

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Aug 17, 2026	Common Stock	3,060	—	Grant/Award	—

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Footnotes

(F1)On August 17, 2026, the Reporting Person was granted 3,060 restricted stock units ("RSUs") under the Issuer's Amended and Restated 2014 Equity Incentive Plan, of which 1/4 of the RSUs (each, an "Equity Grant Tranche") will vest equally on an annual basis, beginning on August 15, 2027, subject to continued service by the Reporting Person on the applicable vesting date. Notwithstanding the foregoing, if the Closing (as defined in that certain Agreement and Plan of Merger, dated as of January 14, 2026, among the Issuer, Boston Scientific Corporation and Pinehurst Merger Sub, Inc.) occurs, the RSUs will vest as follows: the first two Equity Grant Tranches (to the extent not already vested) shall vest on the Closing, and the last two Equity Grant Tranches (to the extent not already vested) shall vest on the first and second anniversaries of the Closing, respectively, subject to continued service by the Reporting Person on the applicable vesting date.
(F2)A portion of these shares is subject to vesting.
(F3)Includes 65 shares purchased by the Reporting Person under the Issuer's Employee Stock Purchase Plan on May 19, 2026.

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^*

Narayan Shruthi

(Last)

(First)

(Middle)

ONE PENUMBRA PLACE

(Street)

ALAMEDA

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)
	President

3. Date of Earliest Transaction (Month/Day/Year)
08/17/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	08/17/2026		A		3,060⁽¹⁾	A	$0	33,880⁽²⁾⁽³⁾	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. On August 17, 2026, the Reporting Person was granted 3,060 restricted stock units ("RSUs") under the Issuer's Amended and Restated 2014 Equity Incentive Plan, of which 1/4 of the RSUs (each, an "Equity Grant Tranche") will vest equally on an annual basis, beginning on August 15, 2027, subject to continued service by the Reporting Person on the applicable vesting date. Notwithstanding the foregoing, if the Closing (as defined in that certain Agreement and Plan of Merger, dated as of January 14, 2026, among the Issuer, Boston Scientific Corporation and Pinehurst Merger Sub, Inc.) occurs, the RSUs will vest as follows: the first two Equity Grant Tranches (to the extent not already vested) shall vest on the Closing, and the last two Equity Grant Tranches (to the extent not already vested) shall vest on the first and second anniversaries of the Closing, respectively, subject to continued service by the Reporting Person on the applicable vesting date.

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

3. Includes 65 shares purchased by the Reporting Person under the Issuer's Employee Stock Purchase Plan on May 19, 2026.

Remarks:

	/s/ Johanna Roberts, as attorney-in-fact for Shruthi Narayan	08/19/2026
	** 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 as rendered by the SEC from accession 0002086163-26-000008.

Penumbra Inc

Trade Summary

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

SEC Form 4