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Simcoe Capital’s PubMatic PUBM Stock Holding History

Simcoe Capital’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 		$9.1M Buy
693,903
+207,651
+43% +$2.16M 5.55% 3
2026
Q1 		$3.98M Buy
486,252
+77,562
+19% +$596K 3.65% 10
2025
Q4 		$3.63M Buy
+408,690
New +$3.56M 3.41% 14

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

Simcoe Capital's PUBM Position: Q2 2026 in Review

Simcoe Capital increased its PubMatic (PUBM) stake by 43% in Q2 2026, buying an estimated $2.16M and bringing the position to 693,903 shares worth $9.1M. The position accounts for 5.55% of the portfolio, ranked #3.

Simcoe Capital first reported a position in PUBM in Q4 2025 and has held it in 3 quarters since. 153 funds tracked by Wall St. Rank hold PUBM as of Q2 2026.

  • Simcoe Capital held 693,903 shares of PubMatic worth $9.1M as of Q2 2026.
  • Simcoe Capital bought 207,651 PubMatic shares in Q2 2026, an estimated $2.16M.
  • PubMatic made up 5.55% of Simcoe Capital's portfolio in Q2 2026, its #3 holding.
  • Simcoe Capital first reported a position in PubMatic in Q4 2025 and has held it in 3 quarters since.
  • 153 funds tracked by Wall St. Rank held PubMatic as of Q2 2026.

Based on Simcoe Capital's 13F filing for Q2 2026, filed 6 Aug 2026.