Pubmatic Inc. Class APUBM
13F holders, Q1 2026 (March 31)153holders +1
29new positions
28sold out
7famous investors
$8.18avg. 13F price*
At the end of Q1 2026, 153 institutions reported holding Pubmatic Inc. Class A (PUBM) in their 13F filings, up 1 from Q4 2025. 29 opened new positions and 28 sold out. The largest holders were Graham Holdings Co ($27.8M), BlackRock, Inc. ($25.1M) and CenterBook Partners LP ($14.3M). 7 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Pubmatic Inc. Class A
- CUSIP
- 74467Q103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 29 | $12.3M |
| Exits | 28 | $20.6M |
All 13F filers, Q4 2025 → Q1 2026: 5,713,087 shares bought and 4,406,424 shares sold, net +1,306,663 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 153 holders
| Graham Holdings Co | 2.88% | Add +20.0% | 3,398,904 | $27.8M |
| BlackRock, Inc. | 0.00% | Reduce -1.9% | 3,065,036 | $25.1M |
| CenterBook Partners LP | 0.77% | Add +51.9% | 1,742,100 | $14.3M |
| Vanguard Capital Management LLC | 0.00% | — | 1,613,769 | $13.2M |
| Acadian Asset Management LLC | 0.02% | Add +70.2% | 1,576,540 | $12.9M |
| Renaissance Technologies | 0.02% | Add +26.3% | 1,540,533 | $12.6M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -2.1% | 1,245,359 | $10.2M |
| Geode Capital Management, LLC | 0.00% | Add +4.9% | 950,605 | $7.8M |
| Jacobs Levy Equity Management, Inc. | 0.03% | Add +0.3% | 932,213 | $7.6M |
| State Street Corp. | 0.00% | Reduce -4.7% | 791,419 | $6.5M |
| Royal Bank of Canada | 0.00% | Reduce -14.2% | 740,281 | $6.1M |
| Whitefort Capital Management, LP | 1.78% | New | 690,000 | $5.6M |
| S Squared Technology, LLC | 2.09% | Add +140.7% | 676,399 | $5.5M |
| Vanguard Portfolio Management LLC | 0.00% | — | 638,785 | $5.2M |
| Two Sigma Investments, LP | 0.00% | Add +12.7% | 534,449 | $4.4M |
| Simcoe Capital LLC | 3.65% | Add +19.0% | 486,252 | $4.0M |
| D. E. Shaw & Co. | 0.00% | Reduce -18.6% | 445,114 | $3.6M |
| Trexquant Investment LP | 0.03% | Add +37.5% | 422,423 | $3.5M |
| Goldman Sachs Group Inc. | 0.00% | Add +42.0% | 354,200 | $2.9M |
| Tudor Investment Corporation | 0.02% | Add +248.9% | 351,112 | $2.9M |
| Morgan Stanley | 0.00% | Add +6.6% | 341,670 | $2.8M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -1.8% | 294,803 | $2.4M |
| Northern Trust Corp. | 0.00% | Add +7.8% | 290,561 | $2.4M |
| Panagora Asset Management Inc. | 0.01% | Add +1.1% | 276,256 | $2.3M |
| Susquehanna International Group, LLP | 0.00% | Add +65.6% | 238,984 | $2.0M |
| JPMorgan Chase & Co. | 0.00% | Add +153.3% | 240,467 | $2.0M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 230,629 | $1.9M |
| Jane Street Group, LLC | 0.00% | Add +1.6% | 210,000 | $1.7M |
| Quantinno Capital Management LP | 0.00% | Add +248.0% | 206,815 | $1.7M |
| Arrowstreet Capital, Limited Partnership | 0.00% | New | 206,287 | $1.7M |
| P.A.W. Capital Corp. | 1.18% | Add +125.0% | 180,000 | $1.5M |
| Bridgeway Capital Management, LLC | 0.03% | New | 175,300 | $1.4M |
| Pinnacle Holdings, LLC | 0.46% | Add +10.5% | 157,884 | $1.3M |
| Citadel Advisors | 0.00% | Reduce -44.0% | 149,043 | $1.2M |
| Diversified Investment Strategies, LLC | 0.73% | Add +40.0% | 140,000 | $1.1M |
| Franklin Resources Inc. | 0.00% | Add +47.1% | 138,180 | $1.1M |
| Ameriprise Financial Inc. | 0.00% | Reduce -17.2% | 134,001 | $1.1M |
| AQR Capital Management | 0.00% | New | 124,954 | $1.0M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -8.6% | 120,752 | $988K |
| Invesco Ltd. | 0.00% | Add +11.6% | 117,766 | $963K |
| Man Group plc | 0.00% | New | 117,730 | $963K |
| Bank of New York Mellon Corp | 0.00% | Reduce -6.6% | 113,309 | $927K |
| American Century Companies Inc. | 0.00% | Reduce -1.6% | 112,272 | $918K |
| Bank of America Corp. | 0.00% | Reduce -4.6% | 95,430 | $781K |
| Millennium Management | 0.00% | Reduce -90.0% | 92,023 | $753K |
| HSBC Holdings PLC | 0.00% | Add +39.8% | 90,319 | $747K |
| Gsa Capital Partners LLP | 0.05% | Add +14.4% | 89,051 | $728K |
| Nuveen, LLC | 0.00% | Add +0.7% | 82,933 | $678K |
| Deutsche Bank AG | 0.00% | Reduce -43.5% | 82,062 | $671K |
| UBS Group AG | 0.00% | Reduce -45.4% | 78,580 | $643K |
| Victory Capital Management Inc. | 0.00% | Add +11.0% | 77,232 | $632K |
| Barclays PLC | 0.00% | Reduce -39.0% | 76,906 | $629K |
| Cardinal Point Capital Management ULC | 0.04% | Add +58.9% | 71,500 | $585K |
| XTX Topco Ltd | 0.01% | Add +204.7% | 68,458 | $560K |
| Public Employees Retirement System of Ohio | 0.00% | No change | 66,426 | $543K |
| Russell Investments Group, Ltd. | 0.00% | Add +56.8% | 66,291 | $542K |
| Group One Trading LLC | 0.02% | Add +1261.4% | 63,837 | $522K |
| Wells Fargo & Company | 0.00% | Reduce -25.9% | 60,747 | $497K |
| Canada Pension Plan Investment Board | 0.00% | Add +216.0% | 59,400 | $486K |
| Brevan Howard Capital Management LP | 0.00% | New | 57,806 | $473K |
| Avestar Capital, LLC | 0.03% | Reduce -63.3% | 55,000 | $450K |
| Voya Investment Management LLC | 0.00% | Add +5.4% | 53,332 | $436K |
| Magnetar Financial LLC | 0.00% | Add +42.5% | 50,026 | $409K |
| Rhumbline Advisers | 0.00% | Reduce -5.9% | 49,753 | $407K |
| Creative Planning | 0.00% | Add +153.1% | 48,249 | $395K |
| Fox Run Management, L.L.C. | 0.07% | Reduce -24.1% | 46,673 | $379K |
| Alliancebernstein L.P. | 0.00% | No change | 36,200 | $321K |
| Balyasny Asset Management L.P. | 0.00% | Reduce -31.3% | 37,405 | $306K |
| IMC-Chicago, LLC | 0.00% | New | 36,842 | $301K |
| Fuller & Thaler Asset Management, Inc. | 0.00% | Add +32.0% | 36,736 | $301K |
| STRS Ohio | 0.00% | No change | 31,100 | $254K |
| T. Rowe Price Associates Inc. | 0.00% | Add +35.4% | 30,926 | $253K |
| Los Angeles Capital Management LLC | 0.00% | Add +10238.8% | 27,708 | $227K |
| Allworth Financial LP | 0.00% | Add +0.3% | 25,168 | $206K |
| GWN Securities Inc. | 0.04% | Add +41.1% | 24,642 | $202K |
| MetLife Investment Management, LLC | 0.00% | No change | 24,504 | $200K |
| Squarepoint Ops LLC | 0.00% | Reduce -65.9% | 23,114 | $189K |
| Point72 Asset Management | 0.00% | Reduce -86.0% | 22,303 | $182K |
| Simplex Trading, LLC | 0.01% | Add +85.3% | 20,989 | $172K |
| Meeder Asset Management Inc. | 0.01% | New | 19,822 | $162K |
| Diversified Trust Co. | 0.00% | Add +20.8% | 17,564 | $144K |
| Leibman Financial Services, Inc. | 0.10% | Reduce -85.9% | 16,296 | $133K |
| Focus Partners Wealth | 0.00% | New | 13,919 | $133K |
| Mercer Global Advisors Inc. | 0.00% | New | 15,963 | $131K |
| Vanguard Global Advisers, LLC | 0.00% | — | 15,893 | $130K |
| Sei Investments Co. | 0.00% | New | 15,773 | $129K |
| Jasper Ridge Partners, L.P. | 0.00% | No change | 15,032 | $123K |
| Brooklyn Investment Group | 0.00% | Reduce -47.1% | 14,219 | $116K |
| WINTON GROUP Ltd | 0.00% | Reduce -55.5% | 13,200 | $108K |
| Walleye Trading LLC | 0.00% | Reduce -57.2% | 13,083 | $107K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 12,458 | $102K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 12,430 | $102K |
| Prelude Capital Management, LLC | 0.01% | Reduce -10.2% | 12,350 | $101K |
| Cetera Investment Advisers | 0.00% | Reduce -0.8% | 12,259 | $100K |
| New York State Common Retirement Fund | 0.00% | No change | 11,752 | $96K |
| Inscription Capital, LLC | 0.01% | New | 11,485 | $94K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -11.0% | 10,637 | $87K |
| M&T Bank Corp | 0.00% | Reduce -1.2% | 10,094 | $83K |
| Centiva Capital, LP | 0.00% | No change | 10,000 | $82K |
| BNP Paribas Financial Markets | 0.00% | Reduce -86.6% | 9,647 | $79K |
"% of holder's portfolio" is PUBM's weight in each manager's 13F, not the share of Pubmatic Inc. Class A the manager owns.