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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, Q2 2025

Institutional positions in PubMatic, Inc. as of Jun 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
149
−7 vs. Q1 2025
Shares held
25.8M
−246.9K (−0.9%) vs. Q1 2025
Total value
$321.6M
+$83.2M (+34.9%) vs. Q1 2025
New holders
25
54 more added
Sold out
32
46 more reduced

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2025: 149 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 heldQ2 2025: $321.6M
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, Q2 2025

Shares, value and share of portfolio for each institution holding PubMatic, Inc.; share changes are against Q1 2025.

Institutions holding PUBM in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.3,449,941$42.9M0.00%−2,155−0.1%Reduced
Graham Holdings Co2,831,462$35.2M3.96%00.0%Unchanged
Vanguard Group Inc2,611,179$32.5M0.00%−802,424−23.5%Reduced
Dimensional Fund Advisors LP1,481,621$18.4M0.00%−41,036−2.7%Reduced
Wellington Management Group LLP1,333,433$16.6M0.00%+255,512+23.7%Added
Renaissance Technologies LLC1,219,900$15.2M0.02%+123,400+11.3%Added
Geode Capital Management, LLC985,948$12.3M0.00%+49,209+5.3%Added
Royal Bank of Canada970,347$12.1M0.00%+66,730+7.4%Added
State Street Corp915,724$11.4M0.00%−14,946−1.6%Reduced
Jacobs Levy Equity Management, Inc877,784$10.9M0.04%+215,486+32.5%Added
Acadian Asset Management LLC628,139$7.81M0.02%+171,106+37.4%Added
Citadel Advisors LLC497,572$6.19M0.01%+370,571+291.8%Added
Nuveen, LLC401,456$4.99M0.00%−32,119−7.4%Reduced
JPMorgan Chase & Co384,463$4.78M0.00%−16,536−4.1%Reduced
Nordea Investment Management AB346,047$4.44M0.00%+3,263+1.0%Added
D. E. Shaw & Co., Inc.356,381$4.43M0.00%−95,529−21.1%Reduced
Northern Trust Corp342,031$4.25M0.00%−17,377−4.8%Reduced
Charles Schwab Investment Management Inc339,323$4.22M0.00%+11,953+3.7%Added
Goldman Sachs Group Inc327,141$4.07M0.00%+41,205+14.4%Added
Avestar Capital, LLC305,000$3.79M0.28%−15,000−4.7%Reduced
Trexquant Investment LP258,733$3.22M0.04%−40,674−13.6%Reduced
Panagora Asset Management Inc257,528$3.20M0.01%00.0%Unchanged
CenterBook Partners LP220,810$2.75M0.15%+220,810New
Susquehanna International Group, LLP206,134$2.56M0.00%+16,260+8.6%Added
Jane Street Group, LLC172,870$2.15M0.00%+63,447+58.0%Added
Ameriprise Financial Inc167,498$2.08M0.00%+167,498New
Two Sigma Investments, LP156,027$1.94M0.00%+156,027New
Acuitas Investments, LLC146,492$1.82M1.45%+146,492New
Deutsche Bank AG143,079$1.78M0.00%−19,515−12.0%Reduced
Mirae Asset Global ETFs Holdings Ltd.141,255$1.76M0.00%+2,654+1.9%Added
Morgan Stanley141,072$1.75M0.00%−217,713−60.7%Reduced
American Century Companies Inc137,650$1.71M0.00%−96,047−41.1%Reduced
Bank of New York Mellon Corp132,802$1.65M0.00%+11,876+9.8%Added
Pinnacle Holdings, LLC128,825$1.60M0.58%+15,089+13.3%Added
Barclays PLC122,113$1.52M0.00%+19,521+19.0%Added
UBS Asset Management Americas Inc119,747$1.49M0.00%+39,154+48.6%Added
UBS Group AG119,151$1.48M0.00%+66,081+124.5%Added
Algert Global LLC109,065$1.36M0.03%+55,911+105.2%Added
Victory Capital Management Inc104,986$1.31M0.00%+12,253+13.2%Added
Leibman Financial Services, Inc.104,683$1.30M1.00%+41,499+65.7%Added
Bank of America Corp104,050$1.29M0.00%+65,537+170.2%Added
Walleye Capital LLC87,984$1.09M0.01%+83,776+1,990.9%Added
Invesco Ltd.81,994$1.02M0.00%+7,468+10.0%Added
Diversified Investment Strategies, LLC80,000$995.2K0.67%+80,000New
Apis Capital Advisors, LLC77,500$964.1K0.34%+77,500New
Connor, Clark & Lunn Investment Management Ltd.76,276$948.9K0.00%+37,067+94.5%Added
Swiss National Bank73,200$910.6K0.00%−2,700−3.6%Reduced
Wells Fargo & Company69,212$861.0K0.00%+8,479+14.0%Added
Rhumbline Advisers65,840$819.0K0.00%+5,828+9.7%Added
State of Wisconsin Investment Board62,165$773.3K0.00%+62,165New
Franklin Resources Inc61,433$764.2K0.00%+182+0.3%Added
AQR Capital Management LLC54,896$682.9K0.00%+43,628+387.2%Added
Gsa Capital Partners LLP50,926$634.0K0.04%+25,699+101.9%Added
Legal & General Group Plc48,268$600.3K0.00%−702−1.4%Reduced
HSBC Holdings PLC46,637$595.5K0.00%+6,066+15.0%Added
Walleye Trading LLC43,332$539.0K0.01%+43,332New
Russell Investments Group, Ltd.42,807$532.5K0.00%−3,440−7.4%Reduced
California State Teachers Retirement System36,777$457.5K0.00%00.0%Unchanged
Alliancebernstein L.P.36,200$450.3K0.00%−4,620−11.3%Reduced
Intech Investment Management LLC35,574$442.5K0.00%−10,177−22.2%Reduced
Ardsley Advisory Partners LP35,000$435.4K0.07%+35,000New
Amundi34,101$432.1K0.00%+34,101New
Price T Rowe Associates Inc34,083$424.0K0.00%+2,824+9.0%Added
Public Employees Retirement System of Ohio33,700$419.2K0.00%+33,700New
Qube Research & Technologies Ltd32,508$404.4K0.00%−234,074−87.8%Reduced
STRS Ohio31,100$386.9K0.00%00.0%Unchanged
CWM Advisors, LLC31,015$385.8K0.04%−6,405−17.1%Reduced
Engineers Gate Manager LP30,254$376.4K0.00%−29,651−49.5%Reduced
Simplex Trading, LLC29,432$366.0K0.01%+2,176+8.0%Added
Nebula Research & Development LLC28,104$349.6K0.03%−5,375−16.1%Reduced
Fuller & Thaler Asset Management, Inc.27,835$346.3K0.00%−6,200−18.2%Reduced
Two Sigma Advisers, LP27,700$344.6K0.00%+27,700New
Fox Run Management, L.L.C.26,668$331.8K0.06%+26,668New
MetLife Investment Management24,504$304.8K0.00%00.0%Unchanged
Principal Financial Group Inc22,616$281.3K0.00%−2,331−9.3%Reduced
Janus Henderson Group PLC22,198$276.0K0.00%00.0%Unchanged
Creative Planning21,611$268.8K0.00%+21,611New
Wolverine Trading, LLC22,296$260.0K0.01%+22,296New
Diametric Capital, LP20,499$255.0K0.14%+20,499New
Quantinno Capital Management LP18,987$236.2K0.00%+4,186+28.3%Added
Citigroup Inc18,791$233.8K0.00%−14,194−43.0%Reduced
Millennium Management LLC18,721$232.9K0.00%−104,003−84.7%Reduced
Corton Capital Inc.16,884$210.0K0.24%+6,884+68.8%Added
Cetera Investment Advisers16,718$208.0K0.00%−2,318−12.2%Reduced
Manufacturers Life Insurance Company, The15,525$193.1K0.00%+630+4.2%Added
Jasper Ridge Partners, L.P.15,032$187.0K0.00%00.0%Unchanged
Graham Capital Management, L.P.14,079$175.1K0.01%−42,852−75.3%Reduced
US Bancorp14,013$174.3K0.00%−723−4.9%Reduced
GWN Securities Inc.13,252$165.0K0.03%+13,252New
Diversified Trust Co13,005$161.8K0.00%+68+0.5%Added
State Board of Administration of Florida Retirement System12,430$154.6K0.00%00.0%Unchanged
Headlands Technologies LLC12,043$149.8K0.02%+4,478+59.2%Added
Voya Investment Management LLC12,029$149.6K0.00%−957−7.4%Reduced
New York State Common Retirement Fund11,752$146.2K0.00%00.0%Unchanged
Verition Fund Management LLC11,723$145.8K0.00%−47,907−80.3%Reduced
Arizona State Retirement System11,180$139.1K0.00%−32−0.3%Reduced
Quest Partners LLC11,046$137.4K0.01%−2,779−20.1%Reduced
Avantax Advisory Services, Inc.10,144$126.2K0.00%−1,706−14.4%Reduced
Centiva Capital, LP10,000$124.4K0.01%−13,125−56.8%Reduced
Intrepid Capital Management Inc10,000$124.4K0.05%00.0%Unchanged