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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 16 sales; 153 institutions reported holding it in 13F filings for Q2 2026, worth $399.4M in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in PubMatic, Inc. as of Dec 31, 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
152
+4 vs. Q3 2025
Shares held
27.6M
+67.1K (+0.2%) vs. Q3 2025
Total value
$245.2M
+$16.9M (+7.4%) vs. Q3 2025
New holders
30
52 more added
Sold out
26
52 more reduced

2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 152 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 heldQ4 2025: $245.2M
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, Q4 2025

Shares, value and share of portfolio for each institution holding PubMatic, Inc.; share changes are against Q3 2025.

Institutions holding PUBM in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
New York State Common Retirement Fund11,752$104.2K0.00%00.0%Unchanged
Simplex Trading, LLC11,327$100.5K0.00%+11,327New
Verition Fund Management LLC11,000$97.6K0.00%−1,023−8.5%Reduced
M&T Bank Corp10,221$90.7K0.00%+10,221New
Centiva Capital, LP10,000$88.7K0.01%+10,000New
Legal & General Group Plc8,477$75.2K0.00%−37,841−81.7%Reduced
Mirae Asset Global Investments Co., Ltd.5,355$47.5K0.00%+91+1.7%Added
Group One Trading, L.P.4,689$41.6K0.00%−16,027−77.4%Reduced
FMR LLC4,069$36.1K0.00%+1,244+44.0%Added
Citigroup Inc4,059$36.0K0.00%−2,287−36.0%Reduced
Quarry LP3,387$30.0K0.00%+3,387New
Ameritas Investment Partners, Inc.3,056$27.1K0.00%−1,210−28.4%Reduced
Aquatic Capital Management LLC2,698$23.9K0.00%−13,133−83.0%Reduced
SRS Capital Advisors, Inc.2,602$23.1K0.00%+1,455+126.9%Added
Versant Capital Management, Inc2,443$21.7K0.00%+2,424+12,757.9%Added
California State Teachers Retirement System2,316$20.5K0.00%−34,463−93.7%Reduced
Sterling Capital Management LLC2,170$19.2K0.00%−710−24.7%Reduced
US Bancorp1,722$15.3K0.00%+34+2.0%Added
Parallel Advisors, LLC1,598$14.2K0.00%+1,298+432.7%Added
Jones Financial Companies LLLP1,368$12.1K0.00%00.0%Unchanged
Rockefeller Capital Management L.P.1,323$11.7K0.00%+1,141+626.9%Added
Larson Financial Group LLC1,282$11.4K0.00%+1,121+696.3%Added
State of Alaska, Department of Revenue1,267$11.0K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)1,154$10.2K0.00%−2,866−71.3%Reduced
Amalgamated Bank1,183$10.0K0.00%−265−18.3%Reduced
GAMMA Investing LLC1,106$9.81K0.00%+642+138.4%Added
Founders Capital Management1,000$8.87K0.00%−1,000−50.0%Reduced
Quadrant Capital Group LLC701$6.22K0.00%+228+48.2%Added
CWM, LLC715$6.00K0.00%+413+136.8%Added
Nisa Investment Advisors, LLC628$5.57K0.00%+80+14.6%Added
SBI Securities Co., Ltd.588$5.22K0.00%−299−33.7%Reduced
Signaturefd, LLC586$5.20K0.00%+98+20.1%Added
Adirondack Trust Co549$4.87K0.00%00.0%Unchanged
Newbridge Financial Services Group, Inc.500$4.43K0.00%00.0%Unchanged
UBS Asset Management Americas Inc463$4.11K0.00%−53,963−99.1%Reduced
Farther Finance Advisors, LLC425$3.77K0.00%+405+2,025.0%Added
Advisor Group Holdings, Inc.381$3.38K0.00%−326−46.1%Reduced
Anchor Investment Management, LLC350$3.10K0.00%00.0%Unchanged
Geneos Wealth Management Inc.333$2.95K0.00%00.0%Unchanged
National Bank of Canada325$2.88K0.00%−16−4.7%Reduced
Comerica Bank319$2.83K0.00%−36−10.1%Reduced
Los Angeles Capital Management LLC268$2.21K0.00%+268New
EverSource Wealth Advisors, LLC153$1.36K0.00%+140+1,076.9%Added
Optiver Holding B.V.142$1.26K0.00%+8+6.0%Added
Atlantic Union Bankshares Corp131$1.16K0.00%+8+6.5%Added
Covestor Ltd71$1.00K0.00%+62+688.9%Added
International Assets Investment Management, LLC68$6030.00%+68New
Rothschild Investment LLC55$4880.00%−15−21.4%Reduced
Northwestern Mutual Wealth Management Co50$4440.00%00.0%Unchanged
Missouri Trust & Investment Co30$2660.00%00.0%Unchanged
The PNC Financial Services Group, Inc.16$1420.00%00.0%Unchanged
SHP Wealth Management3$270.00%+3New
Acuitas Investments, LLC0$00.00%−355,651−100.0%Sold out
Roubaix Capital, LLC0$00.00%−271,335−100.0%Sold out
Manatuck Hill Partners, LLC0$00.00%−200,000−100.0%Sold out
Connor, Clark & Lunn Investment Management Ltd.0$00.00%−77,044−100.0%Sold out
Swiss National Bank0$00.00%−73,200−100.0%Sold out
Counterpoint Mutual Funds LLC0$00.00%−43,429−100.0%Sold out
Brevan Howard Capital Management LP0$00.00%−40,577−100.0%Sold out
IMC-Chicago, LLC0$00.00%−30,356−100.0%Sold out
Janus Henderson Group PLC0$00.00%−22,198−100.0%Sold out
FourThought Financial Partners, LLC0$00.00%−22,085−100.0%Sold out
Sherbrooke Park Advisers LLC0$00.00%−19,301−100.0%Sold out
Antipodes Partners Ltd0$00.00%−19,065−100.0%Sold out
Diametric Capital, LP0$00.00%−15,789−100.0%Sold out
Arizona State Retirement System0$00.00%−11,305−100.0%Sold out
KLP Kapitalforvaltning AS0$00.00%−7,200−100.0%Sold out
Zurcher Kantonalbank (Zurich Cantonalbank)0$00.00%−5,852−100.0%Sold out
Quantbot Technologies LP0$00.00%−3,038−100.0%Sold out
Caitong International Asset Management Co., Ltd0$00.00%−2,534−100.0%Sold out
Banque Cantonale Vaudoise0$00.00%−1,006−100.0%Sold out
Advisory Services Network, LLC0$00.00%−434−100.0%Sold out
Hantz Financial Services, Inc.0$00.00%−400−100.0%Sold out
Smartleaf Asset Management LLC0$00.00%−131−100.0%Sold out
Main Street Group, LTD0$00.00%−100−100.0%Sold out
Hughes Financial Services, LLC0$00.00%−60−100.0%Sold out
Measured Wealth Private Client Group, LLC0$00.00%−27−100.0%Sold out
West Branch Capital LLC0$00.00%−5−100.0%Sold out
Wolverine Trading, LLC––––Not filed
Corton Capital Inc.––––Not filed