Penumbra
451 hedge funds and large institutions have $10.8B invested in Penumbra in 2026 Q2 according to their latest regulatory filings, with 44 funds opening new positions, 145 increasing their positions, 185 reducing their positions, and 68 closing their positions.
4% more funds holding in top 10
Funds holding in top 10: 24 → 25 (+1)
0.54% more ownership
Funds ownership: 86.25% → 86.79% (+0.54%)
3% less capital invested
Capital invested by funds: $11.1B → $10.8B (-$328M)
7% less funds holding
Funds holding: 485 → 451 (-34)
22% less repeat investments, than reductions
Existing positions increased: 145 | Existing positions reduced: 185
35% less first-time investments, than exits
New positions opened: 44 | Existing positions closed: 68
70% less call options, than puts
Call options by funds: $65.1M | Put options by funds: $216M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
JP Morgan Chase
New York
|
+$217M |
| 2 |
ECM
ExodusPoint Capital Management
New York
|
+$203M |
| 3 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$141M |
| 4 |
Two Sigma Investments
New York
|
+$120M |
| 5 |
Balyasny Asset Management
Chicago,
Illinois
|
+$106M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Baillie Gifford & Co
Edinburgh,
United Kingdom
|
-$276M |
| 2 |
Millennium Management
New York
|
-$129M |
| 3 |
CAM
Congress Asset Management
Boston,
Massachusetts
|
-$98.9M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
-$92.4M |
| 5 |
Invesco
Atlanta,
Georgia
|
-$88.8M |
PEN Hedge Fund Activity: Q2 2026 in Review
451 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in Penumbra (PEN) for Q2 2026, worth a combined $10.8B — down 3% from $11.1B a quarter earlier.
Sellers outnumbered buyers: 68 funds closed out of PEN and 44 opened new positions — a net loss of 24 holders — while 185 trimmed existing stakes and 145 added.
The largest buyer was JP Morgan Chase, adding an estimated $217M. The largest seller was Baillie Gifford & Co, exiting entirely with an estimated $276M sold.
- 451 institutional investors held Penumbra (PEN) as of Q2 2026, down from 485 in Q1 2026.
- Funds reported $10.8B of Penumbra stock for Q2 2026, down 3% quarter-over-quarter.
- 44 funds opened new Penumbra positions in Q2 2026 and 68 closed out, a net change of -24 holders.
- The largest Penumbra buyer in Q2 2026 was JP Morgan Chase, an estimated $217M added.
- The largest Penumbra seller in Q2 2026 was Baillie Gifford & Co, an estimated $276M sold.
Based on aggregated 13F filings for Q2 2026.