Penumbra PEN Institutional Ownership

Updated Oct 11, 2026

Penumbra Inc (NYSE:PEN) was held by 450 institutional investors that filed 13F reports for the quarter ended June 30, 2026.

• Together they owned 86.64% of the outstanding stock in Q2 2026, up from 86.01% a quarter earlier.
• Total shares held in Penumbra rose 0.88% from Q1 2026, while the number of holders rose 0.45% from Q2 2025.
• Of the 450 holders of PEN in Q2 2026, 195 added to their positions, 181 reduced their stakes and 74 left their positions unchanged.
• Combined, institutional investors held 34.13Mn shares of PEN as of Q2 2026, up 297.98K from the prior quarter and down 871.99K from a year earlier.
• BlackRock, Inc. was the top holder of Penumbra as of June 30, 2026, with 4.3Mn shares, or 10.91% of shares outstanding.
• Holders that added the most shares of Penumbra in Q2 2026 were JPMorgan Chase & Co (+668.84K shares), ExodusPoint Capital Management, LP (+625.22K shares), Arrowstreet Capital, Limited Partnership (+434.74K shares), Two Sigma Investments, LP (+369.91K shares) and Balyasny Asset Management L.P. (+328.07K shares).
• The largest position reductions in PEN for Q2 2026 were by Millennium Management LLC (-397.52K shares), Congress Asset Management Co (-305.15K shares), FMR LLC (-285.11K shares), Invesco Ltd. (-274.22K shares) and Champlain Investment Partners, LLC (-272.35K shares).
• Per Business Quant, the top 10 investors in PEN for the quarter ended June 30, 2026 were BlackRock, Inc. (4.3Mn shares), HBK Investments L.P. (1.84Mn shares), Vanguard Capital Management LLC (1.71Mn shares), Vanguard Portfolio Management LLC (1.67Mn shares), State Street Corp (1.24Mn shares), ExodusPoint Capital Management, LP (1.09Mn shares), Balyasny Asset Management L.P. (1.09Mn shares), JPMorgan Chase & Co (1.07Mn shares), Goldman Sachs Group Inc (847.1K shares) and Arrowstreet Capital, Limited Partnership (834.9K shares).