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 |
|---|---|---|---|---|---|
| Graham Holdings Co | 3,398,904 | $27.8M | 2.88% | +567,442+20.0% | Added |
| BlackRock, Inc. | 3,065,036 | $25.1M | 0.00% | −58,131−1.9% | Reduced |
| CenterBook Partners LP | 1,742,100 | $14.3M | 0.77% | +595,045+51.9% | Added |
| Vanguard Capital Management LLC | 1,613,769 | $13.2M | 0.00% | +1,613,769 | New |
| Acadian Asset Management LLC | 1,576,540 | $12.9M | 0.02% | +650,169+70.2% | Added |
| Renaissance Technologies LLC | 1,540,533 | $12.6M | 0.02% | +321,200+26.3% | Added |
| Dimensional Fund Advisors LP | 1,245,359 | $10.2M | 0.00% | −26,591−2.1% | Reduced |
| Geode Capital Management, LLC | 950,605 | $7.78M | 0.00% | +44,664+4.9% | Added |
| Jacobs Levy Equity Management, Inc | 932,213 | $7.63M | 0.03% | +2,964+0.3% | Added |
| State Street Corp | 791,419 | $6.47M | 0.00% | −38,584−4.6% | Reduced |
| Royal Bank of Canada | 740,281 | $6.05M | 0.00% | −122,907−14.2% | Reduced |
| Whitefort Capital Management, LP | 690,000 | $5.64M | 1.72% | +690,000 | New |
| S Squared Technology, LLC | 676,399 | $5.53M | 2.09% | +395,427+140.7% | Added |
| Vanguard Portfolio Management LLC | 638,785 | $5.23M | 0.00% | +638,785 | New |
| Two Sigma Investments, LP | 534,449 | $4.37M | 0.00% | +60,269+12.7% | Added |
| Simcoe Capital LLC | 486,252 | $3.98M | 3.65% | +77,562+19.0% | Added |
| D. E. Shaw & Co., Inc. | 445,114 | $3.64M | 0.00% | −101,379−18.6% | Reduced |
| Trexquant Investment LP | 422,423 | $3.46M | 0.02% | +115,174+37.5% | Added |
| Goldman Sachs Group Inc | 354,200 | $2.90M | 0.00% | +104,714+42.0% | Added |
| Tudor Investment Corp Et Al | 351,112 | $2.87M | 0.02% | +250,475+248.9% | Added |
| Morgan Stanley | 341,670 | $2.79M | 0.00% | +21,278+6.6% | Added |
| Charles Schwab Investment Management Inc | 294,803 | $2.41M | 0.00% | −5,477−1.8% | Reduced |
| Northern Trust Corp | 290,561 | $2.38M | 0.00% | +21,028+7.8% | Added |
| Panagora Asset Management Inc | 276,256 | $2.26M | 0.01% | +2,944+1.1% | Added |
| Susquehanna International Group, LLP | 238,984 | $1.95M | 0.00% | +94,691+65.6% | Added |
| JPMorgan Chase & Co | 240,467 | $1.95M | 0.00% | +145,536+153.3% | Added |
| Vanguard Fiduciary Trust Co | 230,629 | $1.89M | 0.00% | +230,629 | New |
| Jane Street Group, LLC | 210,000 | $1.72M | 0.00% | +3,226+1.6% | Added |
| Quantinno Capital Management LP | 206,815 | $1.69M | 0.00% | +147,386+248.0% | Added |
| Arrowstreet Capital, Limited Partnership | 206,287 | $1.69M | 0.00% | +206,287 | New |
| P.A.W. Capital Corp | 180,000 | $1.47M | 1.18% | +100,000+125.0% | Added |
| Bridgeway Capital Management, LLC | 175,300 | $1.43M | 0.03% | +175,300 | New |
| Pinnacle Holdings, LLC | 157,884 | $1.29M | 0.42% | +14,980+10.5% | Added |
| Citadel Advisors LLC | 149,043 | $1.22M | 0.00% | −117,100−44.0% | Reduced |
| Diversified Investment Strategies, LLC | 140,000 | $1.15M | 0.73% | +40,000+40.0% | Added |
| Franklin Resources Inc | 138,180 | $1.13M | 0.00% | +44,255+47.1% | Added |
| Ameriprise Financial Inc | 134,001 | $1.10M | 0.00% | −27,866−17.2% | Reduced |
| AQR Capital Management LLC | 124,954 | $1.02M | 0.00% | +124,954 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 120,752 | $987.8K | 0.00% | −11,411−8.6% | Reduced |
| Invesco Ltd. | 117,766 | $963.3K | 0.00% | +12,257+11.6% | Added |
| Man Group plc | 117,730 | $963.0K | 0.00% | +117,730 | New |
| Bank of New York Mellon Corp | 113,309 | $926.9K | 0.00% | −8,041−6.6% | Reduced |
| American Century Companies Inc | 112,272 | $918.4K | 0.00% | −1,848−1.6% | Reduced |
| Bank of America Corp | 95,430 | $780.6K | 0.00% | −4,580−4.6% | Reduced |
| Millennium Management LLC | 92,023 | $752.7K | 0.00% | −826,104−90.0% | Reduced |
| HSBC Holdings PLC | 90,319 | $746.9K | 0.00% | +25,729+39.8% | Added |
| Gsa Capital Partners LLP | 89,051 | $728.0K | 0.05% | +11,207+14.4% | Added |
| Nuveen, LLC | 82,933 | $678.4K | 0.00% | +555+0.7% | Added |
| Deutsche Bank AG | 82,062 | $671.3K | 0.00% | −63,155−43.5% | Reduced |
| UBS Group AG | 78,580 | $642.8K | 0.00% | −65,203−45.3% | Reduced |
| Victory Capital Management Inc | 77,232 | $631.8K | 0.00% | +7,632+11.0% | Added |
| Barclays PLC | 76,906 | $629.1K | 0.00% | −49,283−39.1% | Reduced |
| Cardinal Point Capital Management, ULC | 71,500 | $584.9K | 0.04% | +26,500+58.9% | Added |
| XTX Topco Ltd | 68,458 | $560.0K | 0.01% | +45,990+204.7% | Added |
| Public Employees Retirement System of Ohio | 66,426 | $543.4K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 66,291 | $541.9K | 0.00% | +24,000+56.7% | Added |
| Group One Trading, L.P. | 63,837 | $522.2K | 0.02% | +59,148+1,261.4% | Added |
| Wells Fargo & Company | 60,747 | $496.9K | 0.00% | −21,247−25.9% | Reduced |
| Canada Pension Plan Investment Board | 59,400 | $485.9K | 0.00% | +40,600+216.0% | Added |
| Brevan Howard Capital Management LP | 57,806 | $472.9K | 0.00% | +57,806 | New |
| Avestar Capital, LLC | 55,000 | $449.9K | 0.03% | −95,000−63.3% | Reduced |
| Voya Investment Management LLC | 53,332 | $436.3K | 0.00% | +2,732+5.4% | Added |
| Magnetar Financial LLC | 50,026 | $409.2K | 0.00% | +14,928+42.5% | Added |
| Rhumbline Advisers | 49,753 | $407.0K | 0.00% | −3,101−5.9% | Reduced |
| Creative Planning | 48,249 | $394.7K | 0.00% | +29,185+153.1% | Added |
| Fox Run Management, L.L.C. | 46,673 | $379.0K | 0.07% | −14,788−24.1% | Reduced |
| Alliancebernstein L.P. | 36,200 | $321.1K | 0.00% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 37,405 | $306.0K | 0.00% | −17,035−31.3% | Reduced |
| IMC-Chicago, LLC | 36,842 | $301.4K | 0.00% | +36,842 | New |
| Fuller & Thaler Asset Management, Inc. | 36,736 | $300.5K | 0.00% | +8,901+32.0% | Added |
| STRS Ohio | 31,100 | $254.4K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 30,926 | $253.0K | 0.00% | +8,079+35.4% | Added |
| Los Angeles Capital Management LLC | 27,708 | $226.7K | 0.00% | +27,440+10,238.8% | Added |
| Allworth Financial LP | 25,168 | $205.9K | 0.00% | +65+0.3% | Added |
| GWN Securities Inc. | 24,642 | $201.6K | 0.04% | +7,174+41.1% | Added |
| MetLife Investment Management | 24,504 | $200.4K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 23,114 | $189.1K | 0.00% | −44,627−65.9% | Reduced |
| Point72 Asset Management, L.P. | 22,303 | $182.4K | 0.00% | −136,611−86.0% | Reduced |
| Simplex Trading, LLC | 20,989 | $171.7K | 0.01% | +9,662+85.3% | Added |
| Meeder Asset Management Inc | 19,822 | $162.1K | 0.01% | +19,822 | New |
| Diversified Trust Co | 17,564 | $143.7K | 0.00% | +3,022+20.8% | Added |
| Leibman Financial Services, Inc. | 16,296 | $133.3K | 0.10% | −99,314−85.9% | Reduced |
| Colony Group, LLC | 13,919 | $133.2K | 0.00% | +13,919 | New |
| Mercer Global Advisors Inc | 15,963 | $130.6K | 0.00% | +15,963 | New |
| Vanguard Global Advisers, LLC | 15,893 | $130.0K | 0.00% | +15,893 | New |
| SEI Investments Co | 15,773 | $129.0K | 0.00% | +15,773 | New |
| Jasper Ridge Partners, L.P. | 15,032 | $123.0K | 0.00% | 00.0% | Unchanged |
| Skopos Labs, Inc. | 14,219 | $116.3K | 0.00% | −12,660−47.1% | Reduced |
| Winton Group Ltd | 13,200 | $108.0K | 0.00% | −16,492−55.5% | Reduced |
| Walleye Trading LLC | 13,083 | $107.0K | 0.00% | −17,497−57.2% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 12,458 | $101.9K | 0.00% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 12,430 | $101.7K | 0.00% | 00.0% | Unchanged |
| Prelude Capital Management, LLC | 12,350 | $101.0K | 0.01% | −1,400−10.2% | Reduced |
| Cetera Investment Advisers | 12,259 | $100.3K | 0.00% | −100−0.8% | Reduced |
| New York State Common Retirement Fund | 11,752 | $96.1K | 0.00% | 00.0% | Unchanged |
| Inscription Capital, LLC | 11,485 | $93.9K | 0.01% | +11,485 | New |
| Manufacturers Life Insurance Company, The | 10,637 | $87.0K | 0.00% | −1,319−11.0% | Reduced |
| M&T Bank Corp | 10,094 | $82.6K | 0.00% | −127−1.2% | Reduced |
| Centiva Capital, LP | 10,000 | $81.8K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 9,647 | $78.9K | 0.00% | −62,472−86.6% | Reduced |