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, Q1 2026
Institutional positions in PubMatic, Inc. as of Mar 31, 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
- +3 vs. Q4 2025
- Shares held
- 28.8M
- +3.58M (+14.2%) vs. Q4 2025
- Total value
- $236.0M
- +$11.8M (+5.3%) vs. Q4 2025
- New holders
- 33
- 59 more added
- Sold out
- 30
- 41 more reduced
2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 153 | $399.4M |
| Q1 2026 | 153 | $236.0M |
| Q4 2025 | 152 | $245.2M |
| Q3 2025 | 150 | $228.7M |
| Q2 2025 | 149 | $321.6M |
| Q1 2025 | 157 | $238.4M |
| Q4 2024 | 161 | $386.3M |
| Q3 2024 | 167 | $377.6M |
| Q2 2024 | 193 | $518.8M |
| Q1 2024 | 179 | $576.7M |
| Q4 2023 | 148 | $357.5M |
| Q3 2023 | 143 | $251.1M |
| Q2 2023 | 141 | $379.2M |
| Q1 2023 | 149 | $303.4M |
| Q4 2022 | 162 | $283.9M |
| Q3 2022 | 157 | $362.5M |
| Q2 2022 | 153 | $354.4M |
| Q1 2022 | 138 | $462.1M |
| Q4 2021 | 165 | $608.3M |
| Q3 2021 | 100 | $248.9M |
| Q2 2021 | 87 | $350.3M |
| Q1 2021 | 61 | $305.1M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding PubMatic, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Cardinal Point Capital Management, ULC | 71,500 | $584.9K | 0.04% | +26,500+58.9% | Added |
| Barclays PLC | 76,906 | $629.1K | 0.00% | −49,283−39.1% | Reduced |
| Victory Capital Management Inc | 77,232 | $631.8K | 0.00% | +7,632+11.0% | Added |
| UBS Group AG | 78,580 | $642.8K | 0.00% | −65,203−45.3% | Reduced |
| Deutsche Bank AG | 82,062 | $671.3K | 0.00% | −63,155−43.5% | Reduced |
| Nuveen, LLC | 82,933 | $678.4K | 0.00% | +555+0.7% | Added |
| Gsa Capital Partners LLP | 89,051 | $728.0K | 0.05% | +11,207+14.4% | Added |
| HSBC Holdings PLC | 90,319 | $746.9K | 0.00% | +25,729+39.8% | Added |
| Millennium Management LLC | 92,023 | $752.7K | 0.00% | −826,104−90.0% | Reduced |
| Bank of America Corp | 95,430 | $780.6K | 0.00% | −4,580−4.6% | Reduced |
| American Century Companies Inc | 112,272 | $918.4K | 0.00% | −1,848−1.6% | Reduced |
| Bank of New York Mellon Corp | 113,309 | $926.9K | 0.00% | −8,041−6.6% | Reduced |
| Man Group plc | 117,730 | $963.0K | 0.00% | +117,730 | New |
| Invesco Ltd. | 117,766 | $963.3K | 0.00% | +12,257+11.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 120,752 | $987.8K | 0.00% | −11,411−8.6% | Reduced |
| AQR Capital Management LLC | 124,954 | $1.02M | 0.00% | +124,954 | New |
| Ameriprise Financial Inc | 134,001 | $1.10M | 0.00% | −27,866−17.2% | Reduced |
| Franklin Resources Inc | 138,180 | $1.13M | 0.00% | +44,255+47.1% | Added |
| Diversified Investment Strategies, LLC | 140,000 | $1.15M | 0.73% | +40,000+40.0% | Added |
| Citadel Advisors LLC | 149,043 | $1.22M | 0.00% | −117,100−44.0% | Reduced |
| Pinnacle Holdings, LLC | 157,884 | $1.29M | 0.42% | +14,980+10.5% | Added |
| Bridgeway Capital Management, LLC | 175,300 | $1.43M | 0.03% | +175,300 | New |
| P.A.W. Capital Corp | 180,000 | $1.47M | 1.18% | +100,000+125.0% | Added |
| Arrowstreet Capital, Limited Partnership | 206,287 | $1.69M | 0.00% | +206,287 | New |
| Quantinno Capital Management LP | 206,815 | $1.69M | 0.00% | +147,386+248.0% | Added |
| Jane Street Group, LLC | 210,000 | $1.72M | 0.00% | +3,226+1.6% | Added |
| Vanguard Fiduciary Trust Co | 230,629 | $1.89M | 0.00% | +230,629 | New |
| JPMorgan Chase & Co | 240,467 | $1.95M | 0.00% | +145,536+153.3% | Added |
| Susquehanna International Group, LLP | 238,984 | $1.95M | 0.00% | +94,691+65.6% | Added |
| Panagora Asset Management Inc | 276,256 | $2.26M | 0.01% | +2,944+1.1% | Added |
| Northern Trust Corp | 290,561 | $2.38M | 0.00% | +21,028+7.8% | Added |
| Charles Schwab Investment Management Inc | 294,803 | $2.41M | 0.00% | −5,477−1.8% | Reduced |
| Morgan Stanley | 341,670 | $2.79M | 0.00% | +21,278+6.6% | Added |
| Tudor Investment Corp Et Al | 351,112 | $2.87M | 0.02% | +250,475+248.9% | Added |
| Goldman Sachs Group Inc | 354,200 | $2.90M | 0.00% | +104,714+42.0% | Added |
| Trexquant Investment LP | 422,423 | $3.46M | 0.02% | +115,174+37.5% | Added |
| D. E. Shaw & Co., Inc. | 445,114 | $3.64M | 0.00% | −101,379−18.6% | Reduced |
| Simcoe Capital LLC | 486,252 | $3.98M | 3.65% | +77,562+19.0% | Added |
| Two Sigma Investments, LP | 534,449 | $4.37M | 0.00% | +60,269+12.7% | Added |
| Vanguard Portfolio Management LLC | 638,785 | $5.23M | 0.00% | +638,785 | New |
| S Squared Technology, LLC | 676,399 | $5.53M | 2.09% | +395,427+140.7% | Added |
| Whitefort Capital Management, LP | 690,000 | $5.64M | 1.72% | +690,000 | New |
| Royal Bank of Canada | 740,281 | $6.05M | 0.00% | −122,907−14.2% | Reduced |
| State Street Corp | 791,419 | $6.47M | 0.00% | −38,584−4.6% | Reduced |
| Jacobs Levy Equity Management, Inc | 932,213 | $7.63M | 0.03% | +2,964+0.3% | Added |
| Geode Capital Management, LLC | 950,605 | $7.78M | 0.00% | +44,664+4.9% | Added |
| Dimensional Fund Advisors LP | 1,245,359 | $10.2M | 0.00% | −26,591−2.1% | Reduced |
| Renaissance Technologies LLC | 1,540,533 | $12.6M | 0.02% | +321,200+26.3% | Added |
| Acadian Asset Management LLC | 1,576,540 | $12.9M | 0.02% | +650,169+70.2% | Added |
| Vanguard Capital Management LLC | 1,613,769 | $13.2M | 0.00% | +1,613,769 | New |
| CenterBook Partners LP | 1,742,100 | $14.3M | 0.77% | +595,045+51.9% | Added |
| BlackRock, Inc. | 3,065,036 | $25.1M | 0.00% | −58,131−1.9% | Reduced |
| Graham Holdings Co | 3,398,904 | $27.8M | 2.88% | +567,442+20.0% | Added |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −1,170,952−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −314,634−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −182,600−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −156,573−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −145,345−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −107,854−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −73,523−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −69,654−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −47,715−100.0% | Sold out |
| PharVision Advisers, LLC | 0 | $0 | 0.00% | −45,735−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −31,658−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −31,040−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −28,640−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −21,265−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −19,751−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −18,603−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −16,872−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −16,408−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −13,000−100.0% | Sold out |
| Savant Capital, LLC | 0 | $0 | 0.00% | −12,351−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −11,807−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −11,000−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −3,387−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −2,698−100.0% | Sold out |
| Larson Financial Group LLC | 0 | $0 | 0.00% | −1,282−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −1,183−100.0% | Sold out |
| Founders Capital Management | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −701−100.0% | Sold out |
| Atlantic Union Bankshares Corp | 0 | $0 | 0.00% | −131−100.0% | Sold out |
| SHP Wealth Management | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |