Marshall Wace
PEN icon

Marshall Wace’s Penumbra PEN Stock Holding History

Marshall Wace’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
2026
Q2 		$28.6M Buy
90,520
+54,240
+150% +$17.6M 0.02% 575
2026
Q1 		$11.9M Sell
36,280
-69,051
-66% -$23.4M 0.01% 897
2025
Q4 		$32.7M Buy
105,331
+93,666
+803% +$25.9M 0.03% 467
2025
Q3 		$2.95M Sell
11,665
-70,366
-86% -$17.7M ﹤0.01% 1426
2025
Q2 		$21.1M Buy
82,031
+63,389
+340% +$17.3M 0.02% 561
2025
Q1 		$4.99M Sell
18,642
-25,310
-58% -$6.85M 0.01% 1067
2024
Q4 		$10.4M Buy
43,952
+42,130
+2,312% +$9.58M 0.01% 786
2024
Q3 		$354K Sell
1,822
-105,870
-98% -$20M ﹤0.01% 2069
2024
Q2 		$19.4M Buy
107,692
+87,257
+427% +$17.4M 0.03% 514
2024
Q1 		$4.56M Sell
20,435
-30,246
-60% -$7.48M 0.01% 1034
2023
Q4 		$12.7M Buy
50,681
+5,912
+13% +$1.31M 0.02% 617
2023
Q3 		$10.8M Sell
44,769
-28,845
-39% -$8.01M 0.02% 628
2023
Q2 		$25.3M Buy
+73,614
New +$22.6M 0.05% 398
2022
Q4 		– Sell
-13,180
Closed -$2.5M – 3305
2022
Q3 		$2.5M Buy
+13,180
New +$2.11M 0.01% 1867
2021
Q3 		– Sell
-810
Closed -$222K – 3328
2021
Q2 		$222K Sell
810
-78,387
-99% -$21.4M ﹤0.01% 2415
2021
Q1 		$21.4M Buy
79,197
+62,795
+383% +$16.2M 0.1% 205
2020
Q4 		$2.87M Buy
16,402
+13,578
+481% +$2.97M 0.02% 792
2020
Q3 		$549K Buy
+2,824
New +$594K ﹤0.01% 1213
2019
Q2 		– Sell
-3,923
Closed -$576K – 1725
2019
Q1 		$576K Buy
+3,923
New +$561K 0.01% 1096
2018
Q4 		– Sell
-57,651
Closed -$8.63M – 1753
2018
Q3 		$8.63M Buy
+57,651
New +$8.08M 0.07% 327
2017
Q1 		– Sell
-3,302
Closed -$211K – 638
2016
Q4 		$211K Buy
+3,302
New +$221K ﹤0.01% 921
2016
Q3 		– Sell
-9,260
Closed -$551K – 1083
2016
Q2 		$551K Sell
9,260
-73,631
-89% -$3.97M ﹤0.01% 804
2016
Q1 		$3.81M Buy
+82,891
New +$3.87M 0.04% 409

Other funds holding PEN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
HI
HBK Investments Dallas, Texas $10.2B AUM 67.73% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
ECM
ExodusPoint Capital Management New York $15.5B AUM 38.81% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

Marshall Wace's PEN Position: Q2 2026 in Review

Marshall Wace increased its Penumbra (PEN) stake by 150% in Q2 2026, buying an estimated $17.6M and bringing the position to 90,520 shares worth $28.6M. The position accounts for 0.02% of the portfolio, ranked #575.

Marshall Wace first reported a position in PEN in Q1 2016 and has held it in 23 quarters since. The position peaked at $32.7M in Q4 2025. 451 funds tracked by Wall St. Rank hold PEN as of Q2 2026.

  • Marshall Wace held 90,520 shares of Penumbra worth $28.6M as of Q2 2026.
  • Marshall Wace bought 54,240 Penumbra shares in Q2 2026, an estimated $17.6M.
  • Penumbra made up 0.02% of Marshall Wace's portfolio in Q2 2026, its #575 holding.
  • Marshall Wace first reported a position in Penumbra in Q1 2016 and has held it in 23 quarters since.
  • Marshall Wace's Penumbra position peaked at $32.7M in Q4 2025.
  • 451 funds tracked by Wall St. Rank held Penumbra as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.