Penumbra
450 hedge funds and large institutions have $9.18B invested in Penumbra in 2025 Q2 according to their latest regulatory filings, with 87 funds opening new positions, 169 increasing their positions, 138 reducing their positions, and 52 closing their positions.
405% more call options, than puts
Call options by funds: $73.2M | Put options by funds: $14.5M
67% more first-time investments, than exits
New positions opened: 87 | Existing positions closed: 52
22% more repeat investments, than reductions
Existing positions increased: 169 | Existing positions reduced: 138
7% more funds holding
Funds holding: 420 → 450 (+30)
1.2% more ownership
Funds ownership: 91.15% → 92.35% (+1.2%)
2% less capital invested
Capital invested by funds: $9.39B → $9.18B (-$215M)
50% less funds holding in top 10
Funds holding in top 10: 6 → 3 (-3)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Invesco
Atlanta,
Georgia
|
+$159M |
| 2 |
Baillie Gifford & Co
Edinburgh,
United Kingdom
|
+$63.5M |
| 3 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$57.1M |
| 4 |
Man Group
London,
United Kingdom
|
+$53.3M |
| 5 |
AQR Capital Management
Greenwich,
Connecticut
|
+$52.5M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
-$170M |
| 2 |
Citadel Advisors
Miami,
Florida
|
-$154M |
| 3 |
Holocene Advisors
New York
|
-$108M |
| 4 |
WP
Woodline Partners
San Francisco,
California
|
-$39M |
| 5 |
CIP
Champlain Investment Partners
Burlington,
Vermont
|
-$34.4M |
PEN Hedge Fund Activity: Q2 2025 in Review
450 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Penumbra (PEN) for Q2 2025, worth a combined $9.18B — down 2.3% from $9.39B a quarter earlier.
Buyers outnumbered sellers: 87 funds opened new PEN positions and 52 closed out — a net gain of 35 holders — while 169 added to existing stakes and 138 trimmed.
The largest buyer was Invesco, adding an estimated $159M. The largest seller was T. Rowe Price Investment Management, cutting an estimated $170M.
- 450 institutional investors held Penumbra (PEN) as of Q2 2025, up from 420 in Q1 2025.
- Funds reported $9.18B of Penumbra stock for Q2 2025, down 2.3% quarter-over-quarter.
- 87 funds opened new Penumbra positions in Q2 2025 and 52 closed out, a net change of +35 holders.
- The largest Penumbra buyer in Q2 2025 was Invesco, an estimated $159M added.
- The largest Penumbra seller in Q2 2025 was T. Rowe Price Investment Management, an estimated $170M sold.
Based on aggregated 13F filings for Q2 2025.