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Winton Group’s PubMatic PUBM Stock Holding History

Winton Group’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 		$108K Sell
13,200
-16,492
-56% -$127K ﹤0.01% 1037
2025
Q4 		$263K Buy
+29,692
New +$259K 0.01% 772

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

Winton Group's PUBM Position: Q1 2026 in Review

Winton Group reduced its PubMatic (PUBM) stake by 56% in Q1 2026, selling an estimated $127K and leaving 13,200 shares worth $108K. The position accounts for ﹤0.01% of the portfolio, ranked #1037.

Winton Group first reported a position in PUBM in Q4 2025 and has held it in 2 quarters since. The position peaked at $263K in Q4 2025. 153 funds tracked by Wall St. Rank hold PUBM as of Q1 2026.

  • Winton Group held 13,200 shares of PubMatic worth $108K as of Q1 2026.
  • Winton Group sold 16,492 PubMatic shares in Q1 2026, an estimated $127K.
  • PubMatic made up ﹤0.01% of Winton Group's portfolio in Q1 2026, its #1037 holding.
  • Winton Group first reported a position in PubMatic in Q4 2025 and has held it in 2 quarters since.
  • Winton Group's PubMatic position peaked at $263K in Q4 2025.
  • 153 funds tracked by Wall St. Rank held PubMatic as of Q1 2026.

Based on Winton Group's 13F filing for Q1 2026, filed 12 May 2026.