Millennium Management
PUBM icon

Millennium Management’s PubMatic PUBM Stock Holding History

Millennium Management’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 		$753K Sell
92,023
-826,104
-90% -$6.35M ﹤0.01% 4569
2025
Q4 		$8.14M Buy
918,127
+699,549
+320% +$6.09M ﹤0.01% 2490
2025
Q3 		$1.81M Buy
218,578
+199,857
+1,068% +$2.03M ﹤0.01% 4149
2025
Q2 		$233K Sell
18,721
-104,003
-85% -$1.1M ﹤0.01% 5297
2025
Q1 		$1.12M Sell
122,724
-238,657
-66% -$3.15M ﹤0.01% 4264
2024
Q4 		$5.31M Buy
361,381
+156,095
+76% +$2.42M ﹤0.01% 2766
2024
Q3 		$3.05M Sell
205,286
-118,784
-37% -$2.06M ﹤0.01% 3294
2024
Q2 		$6.58M Buy
+324,070
New +$7.22M ﹤0.01% 2467
2024
Q1 		– Sell
-263,175
Closed -$4.29M – 6544
2023
Q4 		$4.29M Buy
+263,175
New +$3.82M ﹤0.01% 2913
2022
Q2 		– Sell
-274,749
Closed -$7.18M – 7390
2022
Q1 		$7.18M Sell
274,749
-401,019
-59% -$10.3M ﹤0.01% 2534
2021
Q4 		$23M Buy
675,768
+272,694
+68% +$8.89M 0.01% 1312
2021
Q3 		$10.6M Buy
403,074
+312,471
+345% +$9.37M 0.01% 1978
2021
Q2 		$3.54M Buy
90,603
+70,039
+341% +$2.91M ﹤0.01% 3222
2021
Q1 		$1.01M Sell
20,564
-72,384
-78% -$3.28M ﹤0.01% 4213
2020
Q4 		$2.6M Buy
+92,948
New +$2.54M ﹤0.01% 3025

Other funds holding PUBM

GHC
Graham Holdings Company Arlington, Virginia $967M AUM 15.12% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
CP
CenterBook Partners Greenwich, Connecticut $1.86B AUM 24.52% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $23.8B AUM 25.4% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Millennium Management's PUBM Position: Q1 2026 in Review

Millennium Management reduced its PubMatic (PUBM) stake by 90% in Q1 2026, selling an estimated $6.35M and leaving 92,023 shares worth $753K. The position accounts for ﹤0.01% of the portfolio, ranked #4569.

Millennium Management first reported a position in PUBM in Q4 2020 and has held it in 15 quarters since. The position peaked at $23M in Q4 2021. 152 funds tracked by Wall St. Rank hold PUBM as of Q1 2026.

  • Millennium Management held 92,023 shares of PubMatic worth $753K as of Q1 2026.
  • Millennium Management sold 826,104 PubMatic shares in Q1 2026, an estimated $6.35M.
  • PubMatic made up ﹤0.01% of Millennium Management's portfolio in Q1 2026, its #4569 holding.
  • Millennium Management first reported a position in PubMatic in Q4 2020 and has held it in 15 quarters since.
  • Millennium Management's PubMatic position peaked at $23M in Q4 2021.
  • 152 funds tracked by Wall St. Rank held PubMatic as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.