AIM
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Aigen Investment Management’s Penumbra PEN Stock Holding History

Aigen Investment Management’s Portfolio PEN Stock Details PEN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-3,062
Closed -$776K – 890
2025
Q3 		$776K Buy
3,062
+326
+12% +$82.2K 0.12% 261
2025
Q2 		$702K Buy
2,736
+1,099
+67% +$299K 0.1% 320
2025
Q1 		$438K Sell
1,637
-515
-24% -$139K 0.07% 384
2024
Q4 		$511K Buy
+2,152
New +$489K 0.09% 324
2024
Q3 		– Sell
-3,605
Closed -$649K – 947
2024
Q2 		$649K Buy
3,605
+2,367
+191% +$473K 0.13% 230
2024
Q1 		$276K Sell
1,238
-1,207
-49% -$298K 0.06% 463
2023
Q4 		$615K Buy
2,445
+1,582
+183% +$350K 0.11% 268
2023
Q3 		$209K Buy
+863
New +$240K 0.04% 656
2021
Q3 		– Sell
-2,037
Closed -$558K – 611
2021
Q2 		$558K Buy
+2,037
New +$556K 0.1% 216
2020
Q3 		– Sell
-1,948
Closed -$348K – 1057
2020
Q2 		$348K Buy
+1,948
New +$338K 0.04% 571
2020
Q1 		– Sell
-7,055
Closed -$1.16M – 1486
2019
Q4 		$1.16M Buy
+7,055
New +$1.12M 0.19% 145

Other funds holding PEN

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
RI
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Aigen Investment Management's PEN Position: Q4 2025 in Review

Aigen Investment Management sold out of Penumbra (PEN) in Q4 2025, closing a stake of 3,062 shares — an estimated $776K sold.

Aigen Investment Management first reported a position in PEN in Q4 2019 and held it in 11 quarters. The position peaked at $1.16M in Q4 2019. 439 funds tracked by Wall St. Rank hold PEN as of Q4 2025.

  • Aigen Investment Management reported no remaining Penumbra position as of Q4 2025 after selling out during the quarter.
  • Aigen Investment Management sold 3,062 Penumbra shares in Q4 2025, an estimated $776K.
  • Aigen Investment Management first reported a position in Penumbra in Q4 2019 and held it in 11 quarters.
  • Aigen Investment Management's Penumbra position peaked at $1.16M in Q4 2019.
  • 439 funds tracked by Wall St. Rank held Penumbra as of Q4 2025.

Based on Aigen Investment Management's 13F filing for Q4 2025, filed 13 Feb 2026.