WG
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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
Q2 		$222K Buy
16,900
+3,700
+28% +$38.4K 0.01% 988
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 $1.08B AUM 28.93% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
WCM
Whitefort Capital Management New York $406M AUM 84.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return

Winton Group's PUBM Position: Q2 2026 in Review

Winton Group increased its PubMatic (PUBM) stake by 28% in Q2 2026, buying an estimated $38.4K and bringing the position to 16,900 shares worth $222K. The position accounts for 0.01% of the portfolio, ranked #988.

Winton Group first reported a position in PUBM in Q4 2025 and has held it in 3 quarters since. The position peaked at $263K in Q4 2025. 153 funds tracked by Wall St. Rank hold PUBM as of Q2 2026.

  • Winton Group held 16,900 shares of PubMatic worth $222K as of Q2 2026.
  • Winton Group bought 3,700 PubMatic shares in Q2 2026, an estimated $38.4K.
  • PubMatic made up 0.01% of Winton Group's portfolio in Q2 2026, its #988 holding.
  • Winton Group first reported a position in PubMatic in Q4 2025 and has held it in 3 quarters since.
  • Winton Group's PubMatic position peaked at $263K in Q4 2025.
  • 153 funds tracked by Wall St. Rank held PubMatic as of Q2 2026.

Based on Winton Group's 13F filing for Q2 2026, filed 7 Aug 2026.