Penumbra
420 hedge funds and large institutions have $9.19B invested in Penumbra in 2025 Q3 according to their latest regulatory filings, with 52 funds opening new positions, 135 increasing their positions, 173 reducing their positions, and 79 closing their positions.
244% more call options, than puts
Call options by funds: $81.4M | Put options by funds: $23.7M
33% more funds holding in top 10
Funds holding in top 10: 3 → 4 (+1)
0.68% more ownership
Funds ownership: 92.35% → 93.04% (+0.68%)
0% more capital invested
Capital invested by funds: $9.18B → $9.19B (+$14.1M)
7% less funds holding
Funds holding: 450 → 420 (-30)
22% less repeat investments, than reductions
Existing positions increased: 135 | Existing positions reduced: 173
34% less first-time investments, than exits
New positions opened: 52 | Existing positions closed: 79
Top Buyers
| 1 |
Citadel Advisors
Miami,
Florida
|
+$190M |
| 2 |
T. Rowe Price Associates
Baltimore,
Maryland
|
+$106M |
| 3 |
Holocene Advisors
New York
|
+$78.2M |
| 4 |
Morgan Stanley
New York
|
+$49.2M |
| 5 |
PA
Perceptive Advisors
New York
|
+$47.4M |
Top Sellers
PEN Hedge Fund Activity: Q3 2025 in Review
420 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Penumbra (PEN) for Q3 2025, worth a combined $9.19B — up 0.15% from $9.18B a quarter earlier.
Sellers outnumbered buyers: 79 funds closed out of PEN and 52 opened new positions — a net loss of 27 holders — while 173 trimmed existing stakes and 135 added.
The largest buyer was Citadel Advisors, adding an estimated $190M. The largest seller was Point72 Asset Management, exiting entirely with an estimated $35.3M sold.
- 420 institutional investors held Penumbra (PEN) as of Q3 2025, down from 450 in Q2 2025.
- Funds reported $9.19B of Penumbra stock for Q3 2025, up 0.15% quarter-over-quarter.
- 52 funds opened new Penumbra positions in Q3 2025 and 79 closed out, a net change of -27 holders.
- The largest Penumbra buyer in Q3 2025 was Citadel Advisors, an estimated $190M added.
- The largest Penumbra seller in Q3 2025 was Point72 Asset Management, an estimated $35.3M sold.
Based on aggregated 13F filings for Q3 2025.