Marshall Wace
PUBM icon

Marshall Wace’s PubMatic PUBM Stock Holding History

Marshall Wace’s Portfolio PUBM Stock Details PUBM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-145,345
Closed -$1.29M – 3589
2025
Q4 		$1.29M Buy
+145,345
New +$1.27M ﹤0.01% 1801
2025
Q2 		– Sell
-19,143
Closed -$175K – 3072
2025
Q1 		$175K Buy
+19,143
New +$252K ﹤0.01% 2431
2024
Q4 		– Sell
-48,591
Closed -$723K – 2926
2024
Q3 		$723K Sell
48,591
-133,194
-73% -$2.31M ﹤0.01% 1788
2024
Q2 		$3.69M Sell
181,785
-294,163
-62% -$6.55M ﹤0.01% 1126
2024
Q1 		$11.3M Buy
+475,948
New +$8.53M 0.02% 706
2022
Q1 		– Sell
-2,461
Closed -$84K – 3889
2021
Q4 		$84K Sell
2,461
-58,709
-96% -$1.91M ﹤0.01% 3424
2021
Q3 		$1.61M Sell
61,170
-13,714
-18% -$411K 0.01% 1701
2021
Q2 		$2.93M Buy
+74,884
New +$3.12M 0.01% 1169

Other funds holding PUBM

GHC
Graham Holdings Company Arlington, Virginia $1.08B AUM 28.93% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
CP
CenterBook Partners Greenwich, Connecticut $2.04B AUM 35.27% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Marshall Wace's PUBM Position: Q1 2026 in Review

Marshall Wace sold out of PubMatic (PUBM) in Q1 2026, closing a stake of 145,345 shares — an estimated $1.29M sold.

Marshall Wace first reported a position in PUBM in Q2 2021 and held it in 8 quarters. The position peaked at $11.3M in Q1 2024. 153 funds tracked by Wall St. Rank hold PUBM as of Q1 2026.

  • Marshall Wace reported no remaining PubMatic position as of Q1 2026 after selling out during the quarter.
  • Marshall Wace sold 145,345 PubMatic shares in Q1 2026, an estimated $1.29M.
  • Marshall Wace first reported a position in PubMatic in Q2 2021 and held it in 8 quarters.
  • Marshall Wace's PubMatic position peaked at $11.3M in Q1 2024.
  • 153 funds tracked by Wall St. Rank held PubMatic as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.