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PubMatic, Inc.

PUBM
Exchange
Nasdaq
Industry
Services-Computer Programming, Data Processing, Etc.
SEC CIK
0001422930

In the last 90 days, PubMatic, Inc. insiders filed 0 open-market purchases and 21 sales; 153 institutions reported holding it in 13F filings for Q2 2026, worth $399.4M in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in PubMatic, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
150
+2 vs. Q2 2025
Shares held
27.6M
+1.79M (+6.9%) vs. Q2 2025
Total value
$228.7M
−$92.8M (−28.9%) vs. Q2 2025
New holders
28
48 more added
Sold out
26
48 more reduced

1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting PUBM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 150 institutions
Q1 2021: 61 institutionsQ2 2021: 87 institutionsQ3 2021: 100 institutionsQ4 2021: 165 institutionsQ1 2022: 138 institutionsQ2 2022: 153 institutionsQ3 2022: 157 institutionsQ4 2022: 162 institutionsQ1 2023: 149 institutionsQ2 2023: 141 institutionsQ3 2023: 143 institutionsQ4 2023: 148 institutionsQ1 2024: 179 institutionsQ2 2024: 193 institutionsQ3 2024: 167 institutionsQ4 2024: 161 institutionsQ1 2025: 157 institutionsQ2 2025: 149 institutionsQ3 2025: 150 institutionsQ4 2025: 152 institutionsQ1 2026: 153 institutionsQ2 2026: 153 institutions
Value heldQ3 2025: $228.7M
Q1 2021: $305.1MQ2 2021: $350.3MQ3 2021: $248.9MQ4 2021: $608.3MQ1 2022: $462.1MQ2 2022: $354.4MQ3 2022: $362.5MQ4 2022: $283.9MQ1 2023: $303.4MQ2 2023: $379.2MQ3 2023: $251.1MQ4 2023: $357.5MQ1 2024: $576.7MQ2 2024: $518.8MQ3 2024: $377.6MQ4 2024: $386.3MQ1 2025: $238.4MQ2 2025: $321.6MQ3 2025: $228.7MQ4 2025: $245.2MQ1 2026: $236.0MQ2 2026: $399.4M
Institutions holding PUBM and their total value by quarter
QuarterHoldersValue
Q2 2026153$399.4M
Q1 2026153$236.0M
Q4 2025152$245.2M
Q3 2025150$228.7M
Q2 2025149$321.6M
Q1 2025157$238.4M
Q4 2024161$386.3M
Q3 2024167$377.6M
Q2 2024193$518.8M
Q1 2024179$576.7M
Q4 2023148$357.5M
Q3 2023143$251.1M
Q2 2023141$379.2M
Q1 2023149$303.4M
Q4 2022162$283.9M
Q3 2022157$362.5M
Q2 2022153$354.4M
Q1 2022138$462.1M
Q4 2021165$608.3M
Q3 2021100$248.9M
Q2 202187$350.3M
Q1 202161$305.1M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding PubMatic, Inc.; share changes are against Q2 2025.

Institutions holding PUBM in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Swiss National Bank73,200$606.1K0.00%00.0%Unchanged
Victory Capital Management Inc73,825$611.3K0.00%−31,161−29.7%Reduced
Connor, Clark & Lunn Investment Management Ltd.77,044$637.9K0.00%+768+1.0%Added
Franklin Resources Inc80,285$664.8K0.00%+18,852+30.7%Added
Bank of America Corp81,273$672.9K0.00%−22,777−21.9%Reduced
Wells Fargo & Company83,921$694.9K0.00%+14,709+21.3%Added
Diversified Investment Strategies, LLC85,000$703.8K0.46%+5,000+6.3%Added
Invesco Ltd.87,928$728.0K0.00%+5,934+7.2%Added
Leibman Financial Services, Inc.104,824$867.9K0.66%+141+0.1%Added
American Century Companies Inc116,455$964.2K0.00%−21,195−15.4%Reduced
P.A.W. Capital Corp120,000$993.6K1.80%+120,000New
Algert Global LLC122,574$1.01M0.02%+13,509+12.4%Added
Barclays PLC124,466$1.03M0.00%+2,353+1.9%Added
Mirae Asset Global ETFs Holdings Ltd.126,761$1.05M0.00%−14,494−10.3%Reduced
Walleye Capital LLC128,417$1.06M0.01%+40,433+46.0%Added
Bank of New York Mellon Corp135,916$1.13M0.00%+3,114+2.3%Added
Ameriprise Financial Inc138,005$1.14M0.00%−29,493−17.6%Reduced
Pinnacle Holdings, LLC138,822$1.15M0.40%+9,997+7.8%Added
Deutsche Bank AG146,742$1.22M0.00%+3,663+2.6%Added
Morgan Stanley159,621$1.32M0.00%+18,549+13.1%Added
Two Sigma Advisers, LP173,400$1.44M0.00%+145,700+526.0%Added
Susquehanna International Group, LLP196,595$1.63M0.00%−9,539−4.6%Reduced
Manatuck Hill Partners, LLC200,000$1.66M0.56%+200,000New
Millennium Management LLC218,578$1.81M0.00%+199,857+1,067.6%Added
Panagora Asset Management Inc259,459$2.15M0.01%+1,931+0.7%Added
S Squared Technology, LLC260,972$2.16M0.82%+260,972New
Roubaix Capital, LLC271,335$2.25M1.05%+271,335New
Avestar Capital, LLC280,000$2.32M0.17%−25,000−8.2%Reduced
Goldman Sachs Group Inc296,503$2.46M0.00%−30,638−9.4%Reduced
Charles Schwab Investment Management Inc296,891$2.46M0.00%−42,432−12.5%Reduced
Citadel Advisors LLC313,128$2.59M0.00%−184,444−37.1%Reduced
Northern Trust Corp341,861$2.83M0.00%−1700.0%Reduced
JPMorgan Chase & Co348,185$2.88M0.00%−36,278−9.4%Reduced
Acuitas Investments, LLC355,651$2.94M1.89%+209,159+142.8%Added
Nuveen, LLC380,321$3.15M0.00%−21,135−5.3%Reduced
Two Sigma Investments, LP384,905$3.19M0.00%+228,878+146.7%Added
UBS Group AG422,630$3.50M0.00%+303,479+254.7%Added
D. E. Shaw & Co., Inc.572,475$4.74M0.00%+216,094+60.6%Added
Acadian Asset Management LLC687,914$5.69M0.01%+59,775+9.5%Added
CenterBook Partners LP748,460$6.20M0.31%+527,650+239.0%Added
Jacobs Levy Equity Management, Inc851,683$7.05M0.03%−26,101−3.0%Reduced
State Street Corp927,234$7.68M0.00%+11,510+1.3%Added
Geode Capital Management, LLC961,490$7.96M0.00%−24,458−2.5%Reduced
Royal Bank of Canada1,094,080$9.06M0.00%+123,733+12.8%Added
Renaissance Technologies LLC1,355,600$11.2M0.01%+135,700+11.1%Added
Dimensional Fund Advisors LP1,466,388$12.1M0.00%−15,233−1.0%Reduced
Wellington Management Group LLP1,468,503$12.2M0.00%+135,070+10.1%Added
Vanguard Group Inc2,498,972$20.7M0.00%−112,207−4.3%Reduced
Graham Holdings Co2,831,462$23.4M2.35%00.0%Unchanged
BlackRock, Inc.3,387,978$28.1M0.00%−61,963−1.8%Reduced
Nordea Investment Management AB0$00.00%−346,047−100.0%Sold out
Apis Capital Advisors, LLC0$00.00%−77,500−100.0%Sold out
State of Wisconsin Investment Board0$00.00%−62,165−100.0%Sold out
AQR Capital Management LLC0$00.00%−54,896−100.0%Sold out
Ardsley Advisory Partners LP0$00.00%−35,000−100.0%Sold out
Amundi0$00.00%−34,101−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−32,508−100.0%Sold out
CWM Advisors, LLC0$00.00%−31,015−100.0%Sold out
Engineers Gate Manager LP0$00.00%−30,254−100.0%Sold out
Simplex Trading, LLC0$00.00%−29,432−100.0%Sold out
Nebula Research & Development LLC0$00.00%−28,104−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−26,668−100.0%Sold out
Principal Financial Group Inc0$00.00%−22,616−100.0%Sold out
Graham Capital Management, L.P.0$00.00%−14,079−100.0%Sold out
Headlands Technologies LLC0$00.00%−12,043−100.0%Sold out
Intrepid Capital Management Inc0$00.00%−10,000−100.0%Sold out
Centiva Capital, LP0$00.00%−10,000−100.0%Sold out
Lazard Asset Management LLC0$00.00%−8,239−100.0%Sold out
Parallax Volatility Advisers, L.P.0$00.00%−5,499−100.0%Sold out
Skopos Labs, Inc.0$00.00%−1,007−100.0%Sold out
Raymond James Financial Inc0$00.00%−345−100.0%Sold out
Transce3nd, LLC0$00.00%−271−100.0%Sold out
Essential Partners LLC0$00.00%−193−100.0%Sold out
IFP Advisors, Inc0$00.00%0Sold out
True Wealth Design, LLC0$00.00%−28−100.0%Sold out
Fortitude Family Office, LLC0$00.00%−1−100.0%Sold out
Avantax Advisory Services, Inc.––––Not filed