Jane Street’s Penumbra PEN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$6.9M Buy
21,000
+15,100
+256% +$5.11M ﹤0.01% 3042
2025
Q4
$1.83M Sell
5,900
-33,500
-85% -$9.25M ﹤0.01% 4973
2025
Q3
$9.98M Buy
39,400
+35,700
+965% +$9M ﹤0.01% 2426
2025
Q2
$950K Buy
+3,700
New +$1.01M ﹤0.01% 5712
2024
Q4
Sell
-33,400
Closed -$6.49M 10262
2024
Q3
$6.49M Sell
33,400
-103,900
-76% -$19.6M ﹤0.01% 2447
2024
Q2
$24.7M Sell
137,300
-159,100
-54% -$31.8M 0.01% 1142
2024
Q1
$66.2M Sell
296,400
-36,700
-11% -$9.07M 0.01% 506
2023
Q4
$83.8M Buy
333,100
+323,300
+3,299% +$71.5M 0.02% 457
2023
Q3
$2.37M Buy
9,800
+5,500
+128% +$1.53M ﹤0.01% 3771
2023
Q2
$1.48M Sell
4,300
-39,500
-90% -$12.1M ﹤0.01% 4613
2023
Q1
$12.2M Sell
43,800
-23,800
-35% -$6.08M 0.01% 1441
2022
Q4
$15M Buy
67,600
+1,800
+3% +$352K 0.01% 1228
2022
Q3
$12.5M Buy
65,800
+45,200
+219% +$7.25M 0.01% 1482
2022
Q2
$2.56M Sell
20,600
-5,800
-22% -$920K ﹤0.01% 3713
2022
Q1
$5.86M Buy
26,400
+20,600
+355% +$4.58M ﹤0.01% 2772
2021
Q4
$1.67M Sell
5,800
-7,900
-58% -$2.09M ﹤0.01% 4844
2021
Q3
$3.65M Sell
13,700
-600
-4% -$161K ﹤0.01% 3286
2021
Q2
$3.92M Sell
14,300
-16,800
-54% -$4.58M ﹤0.01% 3072
2021
Q1
$8.41M Sell
31,100
-210,500
-87% -$54.3M ﹤0.01% 1726
2020
Q4
$42.3M Buy
241,600
+145,500
+151% +$31.9M 0.02% 510
2020
Q3
$18.7M Buy
96,100
+93,100
+3,103% +$19.6M 0.01% 812
2020
Q2
$536K Sell
3,000
-6,700
-69% -$1.16M ﹤0.01% 4981
2020
Q1
$1.56M Buy
+9,700
New +$1.63M ﹤0.01% 2269

Other funds holding PEN

Jane Street's PEN Position: Q1 2026 in Review

Jane Street increased its Penumbra (PEN) stake by 24% in Q1 2026, buying an estimated $137K and bringing the position to 2,101 shares worth $690K. The position accounts for ﹤0.01% of the portfolio, ranked #7300.

Jane Street first reported a position in PEN in Q1 2016 and has held it in 33 quarters since. The position peaked at $21M in Q4 2023. 483 funds tracked by Wall St. Rank hold PEN as of Q1 2026.

  • Jane Street held 2,101 shares of Penumbra worth $690K as of Q1 2026.
  • Jane Street bought 405 Penumbra shares in Q1 2026, an estimated $137K.
  • Penumbra made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #7300 holding.
  • Jane Street first reported a position in Penumbra in Q1 2016 and has held it in 33 quarters since.
  • Jane Street's Penumbra position peaked at $21M in Q4 2023.
  • 483 funds tracked by Wall St. Rank held Penumbra as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.