Penumbra, Inc. (PEN) Insider Trading

Over the last 6 months, 300 institutions increased and 330 reduced their position (13F).

Insider Activity

Sentiment
50/100
Buys (3m)
0
Sells (3m)
0
Net (3m)
$0
Insider trades by month Buys Sells
Oct
Nov
Dec
Jan
Mar
Apr
Context3-month price +1.5%Institutions mixed (13F)
DateInsiderTypeSharesPrice
Aug 19, 2026Narayan Shruthiofficer: PresidentGrant3,060
Apr 6, 2026Grewal HarpreetdirectorSell100$328.22
Mar 17, 2026Shiu Lambertofficer: Chief Accounting OfficerTax150$336.18
Mar 17, 2026Roberts Johannaofficer: EVP, Gen. Counsel & SecretaryTax186$336.18
Mar 17, 2026Narayan Shruthiofficer: PresidentTax117$336.18
Mar 17, 2026Yuen Maggieofficer: Chief Financial OfficerTax186$336.18
Mar 4, 2026Yuen Maggieofficer: Chief Financial OfficerSell2,432$342.30
Feb 18, 2026Shiu Lambertofficer: Chief Accounting OfficerGrant2,300
Feb 18, 2026Roberts Johannaofficer: EVP, Gen. Counsel & SecretaryTax482$339.30
Feb 18, 2026Yuen Maggieofficer: Chief Financial OfficerGrant2,630
Feb 18, 2026Leeds JanetdirectorGrant589
Feb 18, 2026Narayan Shruthiofficer: PresidentTax705$339.30
Feb 18, 2026Wilder ThomasdirectorGrant589
Feb 18, 2026Narayan Shruthiofficer: PresidentGrant2,630
Feb 18, 2026Yuen Maggieofficer: Chief Financial OfficerTax481$339.30
Feb 18, 2026Sarna SurbhidirectorGrant589
Feb 18, 2026O'Rourke BridgetdirectorGrant589
Feb 18, 2026Grewal HarpreetdirectorGrant589
Feb 18, 2026Shiu Lambertofficer: Chief Accounting OfficerTax412$339.30
Feb 18, 2026Roberts Johannaofficer: EVP, Gen. Counsel & SecretaryGrant2,630
Feb 18, 2026Bose AranidirectorGrant589
Jan 16, 2026Narayan Shruthiofficer: PresidentTax286$350.49
Jan 8, 2026Grewal HarpreetdirectorSell186$312.64
Jan 6, 2026Wilder ThomasdirectorSell186$310.72
Dec 17, 2025Roberts Johannaofficer: EVP, Gen. Counsel & SecretaryTax1,130$309.15
Dec 17, 2025Shiu Lambertofficer: Chief Accounting OfficerTax300$309.15
Dec 17, 2025Yuen Maggieofficer: Chief Financial OfficerTax565$309.15
Dec 15, 2025Bose AranidirectorSell2,082$310.50
Dec 15, 2025Bose AranidirectorSell3,523$311.47
Dec 15, 2025Bose AranidirectorSell4$308.00

Source: PEN SEC Form 4 filings, latest Aug 19, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their PEN positions over the last 6 months (SEC Form 13F).

Increased
300
New positions
176
Reduced
330
Sold out
68
Largest moves
InstitutionActionSharesFiled
BLACKROCK, INC.Increased4.3MMay 13, 2026
BlackRock, Inc.Reduced4.3MAug 7, 2026
HBK INVESTMENTS L PIncreased1.8MAug 14, 2026
VANGUARD CAPITAL MANAGEMENT LLCIncreased1.7MAug 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position1.7MMay 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCIncreased1.7MAug 13, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position1.7MMay 8, 2026
HBK INVESTMENTS L PNew Position1.6MMay 15, 2026
STATE STREET CORPIncreased1.2MAug 7, 2026
STATE STREET CORPIncreased1.2MMay 15, 2026
MILLENNIUM MANAGEMENT LLCIncreased1.1MMay 15, 2026
ExodusPoint Capital Management, LPIncreased1.1MAug 14, 2026
BALYASNY ASSET MANAGEMENT L.P.Increased1.1MAug 14, 2026
JPMORGAN CHASE & COIncreased1.1MAug 12, 2026
MILLENNIUM MANAGEMENT LLCReduced948KAug 14, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.