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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, 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
Citigroup Inc6,346$52.5K0.00%−12,445−66.2%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)5,852$48.5K0.00%00.0%Unchanged
Mirae Asset Global Investments Co., Ltd.5,264$43.6K0.00%−117−2.2%Reduced
Ameritas Investment Partners, Inc.4,266$35.3K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)4,020$33.3K0.00%−858−17.6%Reduced
Quantbot Technologies LP3,038$25.2K0.00%+890+41.4%Added
Sterling Capital Management LLC2,880$23.8K0.00%+1,753+155.5%Added
FMR LLC2,825$23.4K0.00%−51−1.8%Reduced
Caitong International Asset Management Co., Ltd2,534$21.0K0.01%+2,208+677.3%Added
Founders Capital Management2,000$16.6K0.01%00.0%Unchanged
US Bancorp1,688$14.0K0.00%−12,325−88.0%Reduced
Amalgamated Bank1,448$12.0K0.00%00.0%Unchanged
Jones Financial Companies LLLP1,368$11.5K0.00%00.0%Unchanged
State of Alaska, Department of Revenue1,267$10.0K0.00%+1,267New
SRS Capital Advisors, Inc.1,147$9.50K0.00%+958+506.9%Added
Banque Cantonale Vaudoise1,006$8.00K0.00%00.0%Unchanged
SBI Securities Co., Ltd.887$7.34K0.00%+15+1.7%Added
Advisor Group Holdings, Inc.707$6.04K0.00%−254−26.4%Reduced
Adirondack Trust Co549$4.54K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC548$4.54K0.00%−1,292−70.2%Reduced
Newbridge Financial Services Group, Inc.500$4.14K0.00%00.0%Unchanged
Signaturefd, LLC488$4.04K0.00%+69+16.5%Added
Quadrant Capital Group LLC473$3.92K0.00%+473New
GAMMA Investing LLC464$3.84K0.00%−206−30.7%Reduced
Advisory Services Network, LLC434$3.59K0.00%+434New
CWM, LLC302$3.00K0.00%−5,662−94.9%Reduced
Hantz Financial Services, Inc.400$3.00K0.00%+400New
Comerica Bank355$2.94K0.00%+19+5.7%Added
Anchor Investment Management, LLC350$2.90K0.00%+350New
National Bank of Canada341$2.82K0.00%+10+3.0%Added
Geneos Wealth Management Inc.333$2.76K0.00%00.0%Unchanged
Parallel Advisors, LLC300$2.48K0.00%00.0%Unchanged
Allworth Financial LP194$1.61K0.00%−18−8.5%Reduced
Rockefeller Capital Management L.P.182$1.51K0.00%+182New
Larson Financial Group LLC161$1.33K0.00%+161New
Optiver Holding B.V.134$1.11K0.00%+134New
Smartleaf Asset Management LLC131$1.11K0.00%00.0%Unchanged
Atlantic Union Bankshares Corp123$1.02K0.00%+123New
Main Street Group, LTD100$8280.00%00.0%Unchanged
Rothschild Investment LLC70$5800.00%−95−57.6%Reduced
Hughes Financial Services, LLC60$4590.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co50$4140.00%−100−66.7%Reduced
Missouri Trust & Investment Co30$2480.00%00.0%Unchanged
Measured Wealth Private Client Group, LLC27$2240.00%+27New
Farther Finance Advisors, LLC20$1660.00%−21−51.2%Reduced
Versant Capital Management, Inc19$1570.00%−1,586−98.8%Reduced
The PNC Financial Services Group, Inc.16$1320.00%+16New
EverSource Wealth Advisors, LLC13$1080.00%−105−89.0%Reduced
West Branch Capital LLC5$570.00%00.0%Unchanged
Covestor Ltd9$00.00%−124−93.2%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