PUBMATIC INC-CLASS A (PUBM) Institutional Ownership Changes & 13F Activity

PUBMATIC INC-CLASS A (PUBM). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Highbridge Capital Management Llc, Whitefort Capital Management, Lp, D. E. Shaw & Co., Inc., Citadel Advisors Llc, and Boothbay Fund Management, Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Manufacturers Life Insurance Company, TheBuy+270+2.5%10,907$143.10KQ2 2026Sep 09, 2026
M&T Bank CorpSell-10,094-100.0%0$0.00Q2 2026Sep 04, 2026
Citadel Advisors LlcBuy+265,837+178.4%414,880$5.44MQ2 2026Sep 02, 2026
California State Teachers Retirement SystemSell-1,499-73.6%538$7.06KQ2 2026Aug 24, 2026
Mercer Global Advisors IncBuy+8,418+52.7%24,381$319.88KQ2 2026Aug 19, 2026
Highbridge Capital Management LlcBuy+644,593644,593$8.42MQ2 2026Aug 14, 2026
Whitefort Capital Management, LpBuy+420,656+61.0%1,110,656$14.57MQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Sell-400,794-90.0%44,320$581.48KQ2 2026Aug 14, 2026
Boothbay Fund Management, LlcBuy+181,615181,615$2.38MQ2 2026Aug 14, 2026
Aqr Capital Management LlcBuy+161,484+129.2%286,438$3.76MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+134,001134,001$1.76MQ2 2026Aug 14, 2026
Royal Bank Of CanadaSell-120,991-16.3%619,290$8.13MQ2 2026Aug 14, 2026
Goldman Sachs Group IncSell-113,622-32.1%240,578$3.16MQ2 2026Aug 14, 2026
Two Sigma Investments, LpBuy+103,653+19.4%638,102$8.37MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+103,232103,232$1.35MQ2 2026Aug 14, 2026
Bank Of America CorpBuy+78,526+82.3%173,956$2.28MQ2 2026Aug 14, 2026
S Squared Technology, LlcBuy+71,700+10.6%748,099$9.82MQ2 2026Aug 14, 2026
Jacobs Levy Equity Management, IncSell-69,217-7.4%862,996$11.32MQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Buy+57,059+255.8%79,362$1.04MQ2 2026Aug 14, 2026
Susquehanna International Group, LlpSell-56,537-23.7%182,447$2.39MQ2 2026Aug 14, 2026
Brevan Howard Capital Management LpSell-46,456-80.4%11,350$148.91KQ2 2026Aug 14, 2026
Raymond James Financial IncBuy+42,90042,900$562.85KQ2 2026Aug 14, 2026
Trexquant Investment LpSell-39,898-9.4%382,525$5.02MQ2 2026Aug 14, 2026
Squarepoint Ops LlcBuy+39,023+168.8%62,137$815.24KQ2 2026Aug 14, 2026
Xtx Topco LtdSell-34,957-51.1%33,501$439.53KQ2 2026Aug 14, 2026
Mirae Asset Global Etfs Holdings Ltd.Sell-34,947-28.9%85,805$1.13MQ2 2026Aug 14, 2026
Hsbc Holdings PlcSell-33,001-36.5%57,318$748.57KQ2 2026Aug 14, 2026
Wells Fargo & Company/MnSell-27,843-45.8%32,904$431.70KQ2 2026Aug 14, 2026
Cambria Investment Management, L.P.Buy+22,82822,828$299.50KQ2 2026Aug 14, 2026
Caption Management, LlcBuy+20,95020,950$274.86KQ2 2026Aug 14, 2026
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Frequently asked questions about PUBM activity

  • Which institutional owners are buying PUBM?

    Institutional owners buying PUBM include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in PUBM activity?

    "Buy" means an investor increased their reported position in PUBM compared to the prior reporting period. This reflects growing exposure to PUBMATIC INC-CLASS A (PUBM) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in PUBM increasing?

    Institutional interest in PUBM can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.