Vanguard Portfolio Management
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Vanguard Portfolio Management’s PubMatic PUBM Stock Holding History

Vanguard Portfolio 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
Q2 		$12.4M Buy
947,548
+308,763
+48% +$3.21M ﹤0.01% 2129
2026
Q1 		$5.23M Buy
+638,785
New +$4.91M ﹤0.01% 2304

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
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

Vanguard Portfolio Management's PUBM Position: Q2 2026 in Review

Vanguard Portfolio Management increased its PubMatic (PUBM) stake by 48% in Q2 2026, buying an estimated $3.21M and bringing the position to 947,548 shares worth $12.4M. The position accounts for ﹤0.01% of the portfolio, ranked #2129.

Vanguard Portfolio Management first reported a position in PUBM in Q1 2026 and has held it in 2 quarters since. 151 funds tracked by Wall St. Rank hold PUBM as of Q2 2026.

  • Vanguard Portfolio Management held 947,548 shares of PubMatic worth $12.4M as of Q2 2026.
  • Vanguard Portfolio Management bought 308,763 PubMatic shares in Q2 2026, an estimated $3.21M.
  • PubMatic made up ﹤0.01% of Vanguard Portfolio Management's portfolio in Q2 2026, its #2129 holding.
  • Vanguard Portfolio Management first reported a position in PubMatic in Q1 2026 and has held it in 2 quarters since.
  • 151 funds tracked by Wall St. Rank held PubMatic as of Q2 2026.

Based on Vanguard Portfolio Management's 13F filing for Q2 2026, filed 13 Aug 2026.