Lambert Shiu - 15 Nov 2025 Form 4 Insider Report for Penumbra Inc (PEN)

Role
Chief Accounting Officer
Signature
/s/ Johanna Roberts, as attorney-in-fact for Lambert Shiu
Issuer symbol
PEN
Transactions as of
15 Nov 2025
Transactions value $
-$238,620
Form type
4
Filing time
18 Nov 2025, 20:03:08 UTC
Previous filing
18 Mar 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Shiu Lambert Chief Accounting Officer ONE PENUMBRA PLACE, ALAMEDA /s/ Johanna Roberts, as attorney-in-fact for Lambert Shiu 18 Nov 2025 0001796068

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction PEN Common Stock Tax liability -$96.9K -346 -1.05% $280.07 32.5K 15 Nov 2025 Direct F1, F2, F3
transaction PEN Common Stock Tax liability -$142K -506 -1.56% $280.07 32K 15 Nov 2025 Direct F1, F2, F3
transaction PEN Common Stock Award $0 +3.58K +11.19% $0.00 35.6K 17 Nov 2025 Direct F2, F3, F4
holding PEN Common Stock 300 15 Nov 2025 By Spouse's IRA F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 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.
F2 A portion of these shares is subject to vesting.
F3 Includes 81 shares purchased by the Reporting Person under the Issuer's Employee Stock Purchase Plan on May 19, 2025.
F4 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.
F5 Shares are held by the Reporting Person's spouse in an IRA.