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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
Covestor Ltd9$00.00%−124−93.2%Reduced
West Branch Capital LLC5$570.00%00.0%Unchanged
EverSource Wealth Advisors, LLC13$1080.00%−105−89.0%Reduced
The PNC Financial Services Group, Inc.16$1320.00%+16New
Versant Capital Management, Inc19$1570.00%−1,586−98.8%Reduced
Farther Finance Advisors, LLC20$1660.00%−21−51.2%Reduced
Measured Wealth Private Client Group, LLC27$2240.00%+27New
Missouri Trust & Investment Co30$2480.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co50$4140.00%−100−66.7%Reduced
Hughes Financial Services, LLC60$4590.00%00.0%Unchanged
Rothschild Investment LLC70$5800.00%−95−57.6%Reduced
Main Street Group, LTD100$8280.00%00.0%Unchanged
Atlantic Union Bankshares Corp123$1.02K0.00%+123New
Smartleaf Asset Management LLC131$1.11K0.00%00.0%Unchanged
Optiver Holding B.V.134$1.11K0.00%+134New
Larson Financial Group LLC161$1.33K0.00%+161New
Rockefeller Capital Management L.P.182$1.51K0.00%+182New
Allworth Financial LP194$1.61K0.00%−18−8.5%Reduced
Parallel Advisors, LLC300$2.48K0.00%00.0%Unchanged
Geneos Wealth Management Inc.333$2.76K0.00%00.0%Unchanged
National Bank of Canada341$2.82K0.00%+10+3.0%Added
Anchor Investment Management, LLC350$2.90K0.00%+350New
Comerica Bank355$2.94K0.00%+19+5.7%Added
CWM, LLC302$3.00K0.00%−5,662−94.9%Reduced
Hantz Financial Services, Inc.400$3.00K0.00%+400New
Advisory Services Network, LLC434$3.59K0.00%+434New
GAMMA Investing LLC464$3.84K0.00%−206−30.7%Reduced
Quadrant Capital Group LLC473$3.92K0.00%+473New
Signaturefd, LLC488$4.04K0.00%+69+16.5%Added
Newbridge Financial Services Group, Inc.500$4.14K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC548$4.54K0.00%−1,292−70.2%Reduced
Adirondack Trust Co549$4.54K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.707$6.04K0.00%−254−26.4%Reduced
SBI Securities Co., Ltd.887$7.34K0.00%+15+1.7%Added
Banque Cantonale Vaudoise1,006$8.00K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.1,147$9.50K0.00%+958+506.9%Added
State of Alaska, Department of Revenue1,267$10.0K0.00%+1,267New
Jones Financial Companies LLLP1,368$11.5K0.00%00.0%Unchanged
Amalgamated Bank1,448$12.0K0.00%00.0%Unchanged
US Bancorp1,688$14.0K0.00%−12,325−88.0%Reduced
Founders Capital Management2,000$16.6K0.01%00.0%Unchanged
Caitong International Asset Management Co., Ltd2,534$21.0K0.01%+2,208+677.3%Added
FMR LLC2,825$23.4K0.00%−51−1.8%Reduced
Sterling Capital Management LLC2,880$23.8K0.00%+1,753+155.5%Added
Quantbot Technologies LP3,038$25.2K0.00%+890+41.4%Added
Tower Research Capital LLC (TRC)4,020$33.3K0.00%−858−17.6%Reduced
Ameritas Investment Partners, Inc.4,266$35.3K0.00%00.0%Unchanged
Mirae Asset Global Investments Co., Ltd.5,264$43.6K0.00%−117−2.2%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)5,852$48.5K0.00%00.0%Unchanged
Citigroup Inc6,346$52.5K0.00%−12,445−66.2%Reduced
KLP Kapitalforvaltning AS7,200$59.6K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA8,875$73.5K0.00%+4,856+120.8%Added
Arizona State Retirement System11,305$93.6K0.00%+125+1.1%Added
Corton Capital Inc.11,362$94.1K0.23%−5,522−32.7%Reduced
New York State Common Retirement Fund11,752$97.3K0.00%00.0%Unchanged
Verition Fund Management LLC12,023$99.5K0.00%+300+2.6%Added
GWN Securities Inc.12,045$99.8K0.02%−1,207−9.1%Reduced
State Board of Administration of Florida Retirement System12,430$102.9K0.00%00.0%Unchanged
Police & Firemen's Retirement System of New Jersey12,458$103.2K0.00%+2,535+25.5%Added
Manufacturers Life Insurance Company, The14,303$118.4K0.00%−1,222−7.9%Reduced
Diversified Trust Co14,704$121.7K0.00%+1,699+13.1%Added
Jasper Ridge Partners, L.P.15,032$124.5K0.00%00.0%Unchanged
Creative Planning15,151$125.5K0.00%−6,460−29.9%Reduced
Diametric Capital, LP15,789$130.7K0.05%−4,710−23.0%Reduced
Aquatic Capital Management LLC15,831$131.1K0.00%+15,831New
Quantinno Capital Management LP18,402$152.4K0.00%−585−3.1%Reduced
Cetera Investment Advisers18,777$155.5K0.00%+2,059+12.3%Added
Antipodes Partners Ltd19,065$157.9K0.00%+19,065New
Sherbrooke Park Advisers LLC19,301$159.8K0.07%+19,301New
SG Americas Securities, LLC19,434$161.0K0.00%+19,434New
Group One Trading, L.P.20,716$171.5K0.01%+20,716New
Intech Investment Management LLC21,167$175.3K0.00%−14,407−40.5%Reduced
Prelude Capital Management, LLC21,268$176.1K0.01%+21,268New
FourThought Financial Partners, LLC22,085$182.9K0.02%+22,085New
Janus Henderson Group PLC22,198$183.7K0.00%00.0%Unchanged
MetLife Investment Management24,504$202.9K0.00%00.0%Unchanged
Fuller & Thaler Asset Management, Inc.27,835$230.5K0.00%00.0%Unchanged
Wolverine Trading, LLC27,327$231.5K0.00%+5,031+22.6%Added
IMC-Chicago, LLC30,356$251.3K0.00%+30,356New
STRS Ohio31,100$257.5K0.00%00.0%Unchanged
Gsa Capital Partners LLP32,116$266.0K0.02%−18,810−36.9%Reduced
Numerai GP LLC34,719$287.5K0.04%+34,719New
Price T Rowe Associates Inc35,312$293.0K0.00%+1,229+3.6%Added
Alliancebernstein L.P.36,200$299.7K0.00%00.0%Unchanged
California State Teachers Retirement System36,779$304.5K0.00%+20.0%Added
Cardinal Point Capital Management, ULC39,500$327.1K0.02%+39,500New
Brevan Howard Capital Management LP40,577$336.0K0.00%+40,577New
Balyasny Asset Management LLC40,896$338.6K0.00%+40,896New
Russell Investments Group, Ltd.42,189$349.3K0.00%−618−1.4%Reduced
Counterpoint Mutual Funds LLC43,429$359.6K0.03%+43,429New
Legal & General Group Plc46,318$383.5K0.00%−1,950−4.0%Reduced
Public Employees Retirement System of Ohio54,088$447.8K0.00%+20,388+60.5%Added
UBS Asset Management Americas Inc54,426$450.6K0.00%−65,321−54.5%Reduced
Trexquant Investment LP57,213$473.7K0.00%−201,520−77.9%Reduced
Quest Partners LLC57,528$476.3K0.03%+46,482+420.8%Added
HSBC Holdings PLC57,556$478.3K0.00%+10,919+23.4%Added
Voya Investment Management LLC59,066$489.1K0.00%+47,037+391.0%Added
Rhumbline Advisers62,282$515.7K0.00%−3,558−5.4%Reduced
Jane Street Group, LLC68,923$570.7K0.00%−103,947−60.1%Reduced
Walleye Trading LLC70,567$584.3K0.01%+27,235+62.9%Added