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 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCBuy321,2001,540,533$12,601,560
Q4 2025Renaissance Technologies LLCSell-136,2671,219,333$10,815,484
Q3 2025Renaissance Technologies LLCBuy135,7001,355,600$11,224,368
Q2 2025Renaissance Technologies LLCBuy123,4001,219,900$15,175,556
Q1 2025Renaissance Technologies LLCBuy33,0001,096,500$10,022,010
Q4 2024Renaissance Technologies LLCSell-30,1001,063,500$15,622,815
Q3 2024Renaissance Technologies LLCSell-95,1001,093,600$16,261,832
Q2 2024Renaissance Technologies LLCBuy265,7001,188,700$24,142,497
Q1 2024Renaissance Technologies LLCBuy108,200923,000$21,894
Q4 2023Renaissance Technologies LLCBuy43,600814,800$13,289
Q3 2023Renaissance Technologies LLCBuy2,700771,200$9,332
Q2 2023Renaissance Technologies LLCSell-83,800768,500$14,048
Q1 2023Renaissance Technologies LLCBuy79,852852,300$11,779
Q4 2022Renaissance Technologies LLCBuy18,348772,448$9,895
Q3 2022Renaissance Technologies LLCSell-13,400754,100$12,541
Q2 2022Renaissance Technologies LLCSell-9,400767,500$12,196
Q1 2022Renaissance Technologies LLCBuy96,346776,900$20,293
Q4 2021Renaissance Technologies LLCBuy680,554680,554$23,173

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.

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