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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 2026

Institutional positions in PubMatic, Inc. as of Jun 30, 2026. 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
153
+2 vs. Q1 2026
Shares held
30.5M
+1.64M (+5.7%) vs. Q1 2026
Total value
$399.4M
+$163.6M (+69.4%) vs. Q1 2026
New holders
19
58 more added
Sold out
17
46 more reduced

2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 2026: 153 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 2026: $399.4M
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 2026

Shares, value and share of portfolio for each institution holding PubMatic, Inc.; share changes are against Q1 2026.

Institutions holding PUBM in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
JPL Wealth Management, LLC4$530.00%+4New
Clearstead Advisors, LLC5$660.00%+5New
Smartleaf Asset Management LLC17$2270.00%00.0%Unchanged
US Bancorp42$5510.00%−344−89.1%Reduced
UMA Financial Services, Inc.44$5780.00%+44New
Northwestern Mutual Wealth Management Co50$6560.00%00.0%Unchanged
SJS Investment Consulting Inc.59$7750.00%+39+195.0%Added
The PNC Financial Services Group, Inc.74$9710.00%00.0%Unchanged
Bare Financial Services, Inc76$9970.00%00.0%Unchanged
Signaturefd, LLC114$1.50K0.00%−167−59.4%Reduced
Optiver Holding B.V.122$1.60K0.00%−42−25.6%Reduced
Rothschild Investment LLC125$1.64K0.00%+54+76.1%Added
Picton Mahoney Asset Management174$2.28K0.00%+174New
Zions Bancorporation, National Association201$2.64K0.00%00.0%Unchanged
Parallel Advisors, LLC300$3.94K0.00%−160−34.8%Reduced
National Bank of Canada318$4.17K0.00%−7−2.2%Reduced
Geneos Wealth Management Inc.333$4.37K0.00%00.0%Unchanged
Fifth Third Bancorp335$4.39K0.00%00.0%Unchanged
Anchor Investment Management, LLC350$4.59K0.00%00.0%Unchanged
Farther Finance Advisors, LLC397$5.21K0.00%+45+12.8%Added
True Wealth Design, LLC402$5.28K0.00%+241+149.7%Added
Newbridge Financial Services Group, Inc.500$6.56K0.00%00.0%Unchanged
SBI Securities Co., Ltd.528$6.93K0.00%−102−16.2%Reduced
California State Teachers Retirement System538$7.06K0.00%−1,499−73.6%Reduced
Essential Partners LLC545$7.15K0.00%+144+35.9%Added
Adirondack Trust Co549$7.20K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC634$8.32K0.00%+174+37.8%Added
UBS Asset Management Americas Inc757$9.93K0.00%00.0%Unchanged
Covestor Ltd826$10.0K0.01%−208−20.1%Reduced
Harbour Investments, Inc.768$10.1K0.00%+118+18.2%Added
Massmutual Trust Co FSB808$10.6K0.00%00.0%Unchanged
State of Alaska, Department of Revenue1,267$16.0K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)1,393$18.3K0.00%+82+6.3%Added
Jones Financial Companies LLLP1,953$24.7K0.00%00.0%Unchanged
Rockefeller Capital Management L.P.2,042$26.8K0.00%−2,992−59.4%Reduced
Mirae Asset Global Investments Co., Ltd.2,246$29.5K0.00%−1,917−46.0%Reduced
Caitong International Asset Management Co., Ltd2,444$32.1K0.00%−369−13.1%Reduced
Nisa Investment Advisors, LLC2,869$37.6K0.00%+1,281+80.7%Added
Ameritas Investment Partners, Inc.3,056$40.1K0.00%00.0%Unchanged
GAMMA Investing LLC4,364$57.3K0.00%−42−1.0%Reduced
BNP Paribas Arbitrage, SA6,222$81.6K0.00%−3,425−35.5%Reduced
SRS Capital Advisors, Inc.6,639$87.1K0.00%+6,554+7,710.6%Added
FMR LLC8,459$111.0K0.00%−597−6.6%Reduced
Legal & General Group Plc8,911$116.9K0.00%+434+5.1%Added
Centiva Capital, LP10,000$131.2K0.00%00.0%Unchanged
Versant Capital Management, Inc10,657$139.8K0.01%+2,482+30.4%Added
Caxton Associates LLP10,888$142.9K0.00%+10,888New
Manufacturers Life Insurance Company, The10,907$143.1K0.00%+270+2.5%Added
Advisor Group Holdings, Inc.11,307$148.3K0.00%+11,135+6,473.8%Added
Brevan Howard Capital Management LP11,350$148.9K0.00%−46,456−80.4%Reduced
Inscription Capital, LLC11,485$150.7K0.01%00.0%Unchanged
Vanguard Global Advisers, LLC11,499$150.9K0.00%−4,394−27.6%Reduced
Walleye Trading LLC11,560$151.7K0.00%−1,523−11.6%Reduced
New York State Common Retirement Fund11,752$154.2K0.00%00.0%Unchanged
Cetera Investment Advisers12,059$158.2K0.00%−200−1.6%Reduced
State Board of Administration of Florida Retirement System12,430$163.1K0.00%00.0%Unchanged
Police & Firemen's Retirement System of New Jersey12,458$163.4K0.00%00.0%Unchanged
Occudo Quantitative Strategies LP13,371$175.4K0.01%+13,371New
Wealth Enhancement Advisory Services, LLC14,545$197.1K0.00%+14,545New
Jasper Ridge Partners, L.P.15,032$197.2K0.00%00.0%Unchanged
Mariner, LLC15,109$198.2K0.00%+15,109New
Grantham, Mayo, Van Otterloo & Co. LLC15,974$209.6K0.00%+15,974New
Winton Group Ltd16,900$221.7K0.01%+3,700+28.0%Added
SEI Investments Co16,977$222.7K0.00%+1,204+7.6%Added
Balyasny Asset Management LLC17,416$228.5K0.00%−19,989−53.4%Reduced
Diversified Trust Co17,564$230.4K0.00%00.0%Unchanged
Colony Group, LLC17,830$233.9K0.00%+3,911+28.1%Added
Ieq Capital, LLC18,913$248.1K0.00%+18,913New
Meeder Asset Management Inc19,416$254.7K0.01%−406−2.0%Reduced
Citigroup Inc20,768$272.5K0.00%+15,863+323.4%Added
Caption Management, LLC20,950$274.9K0.01%+20,950New
Sterling Capital Management LLC21,457$281.5K0.00%+20,162+1,556.9%Added
GWN Securities Inc.22,119$290.2K0.05%−2,523−10.2%Reduced
Alliancebernstein L.P.36,200$296.1K0.00%00.0%Unchanged
Cornerstone Investment Partners, LLC22,630$296.9K0.01%+22,630New
Cambria Investment Management, L.P.22,828$299.5K0.01%+22,828New
Mercer Global Advisors Inc24,381$319.9K0.00%+8,418+52.7%Added
MetLife Investment Management24,504$321.5K0.00%00.0%Unchanged
Allworth Financial LP25,719$337.4K0.00%+551+2.2%Added
Los Angeles Capital Management LLC28,268$370.9K0.00%+560+2.0%Added
Price T Rowe Associates Inc32,040$421.0K0.00%+1,114+3.6%Added
Wells Fargo & Company32,904$431.7K0.00%−27,843−45.8%Reduced
XTX Topco Ltd33,501$439.5K0.01%−34,957−51.1%Reduced
Fuller & Thaler Asset Management, Inc.36,441$478.1K0.00%−295−0.8%Reduced
STRS Ohio38,000$498.6K0.00%+6,900+22.2%Added
Raymond James Financial Inc42,900$562.8K0.00%+42,900New
D. E. Shaw & Co., Inc.44,320$581.5K0.00%−400,794−90.0%Reduced
State of Wyoming45,405$595.7K0.06%+37,986+512.0%Added
Rhumbline Advisers49,564$650.3K0.00%−189−0.4%Reduced
IMC-Chicago, LLC50,081$657.1K0.01%+13,239+35.9%Added
CWM Advisors, LLC51,670$677.9K0.03%+51,670New
Voya Investment Management LLC53,085$696.5K0.00%−247−0.5%Reduced
Avestar Capital, LLC55,000$721.6K0.04%00.0%Unchanged
HSBC Holdings PLC57,318$748.6K0.00%−33,001−36.5%Reduced
Creative Planning57,143$749.7K0.00%+8,894+18.4%Added
Canada Pension Plan Investment Board58,500$767.5K0.00%−900−1.5%Reduced
Barclays PLC59,016$774.3K0.00%−17,890−23.3%Reduced
Simplex Trading, LLC59,051$774.7K0.02%+38,062+181.3%Added
Squarepoint Ops LLC62,137$815.2K0.00%+39,023+168.8%Added
Walleye Capital LLC63,342$831.0K0.00%+63,342New