| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Graham Holdings Co | 7% | $28,201,362 | 2,831,462 | Graham Holdings Company | 31 Mar 2025 | |||
| VANGUARD GROUP INC | 6.5% | -25% | $32,483,067 | -$9,982,155 | 2,611,179 | -24% | The Vanguard Group | 30 Jun 2025 |
As of 30 Sep 2025, 149 institutional investors reported holding 27,616,926 shares of PubMatic, Inc. - Common Stock (PUBM). This represents 69% of the company’s total 40,295,972 outstanding shares.
The largest institutional shareholders of PubMatic, Inc. - Common Stock (PUBM) together control 57% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8.4% | 3,387,978 | -1.8% | 0% | $28,052,457 |
| Graham Holdings Co | 7% | 2,831,462 | 0% | 2.3% | $23,444,000 |
| VANGUARD GROUP INC | 6.2% | 2,498,972 | -4.3% | 0% | $20,691,489 |
| WELLINGTON MANAGEMENT GROUP LLP | 3.6% | 1,468,503 | +10% | 0% | $12,159,204 |
| DIMENSIONAL FUND ADVISORS LP | 3.6% | 1,466,388 | -1% | 0% | $12,142,652 |
| RENAISSANCE TECHNOLOGIES LLC | 3.4% | 1,355,600 | +11% | 0.01% | $11,224,368 |
| ROYAL BANK OF CANADA | 2.7% | 1,094,080 | +13% | 0% | $9,058,000 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 961,490 | -2.5% | 0% | $7,962,590 |
| STATE STREET CORP | 2.3% | 927,234 | +1.3% | 0% | $7,677,498 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 2.1% | 851,683 | -3% | 0.03% | $7,051,935 |
| CenterBook Partners LP | 1.9% | 748,460 | +239% | 0.31% | $6,197,249 |
| ACADIAN ASSET MANAGEMENT LLC | 1.7% | 687,914 | +9.5% | 0.01% | $5,692,000 |
| D. E. Shaw & Co., Inc. | 1.4% | 572,475 | +61% | 0% | $4,740,093 |
| UBS Group AG | 1% | 422,630 | +255% | 0% | $3,499,376 |
| TWO SIGMA INVESTMENTS, LP | 0.96% | 384,905 | +147% | 0% | $3,187,013 |
| Nuveen, LLC | 0.94% | 380,321 | -5.3% | 0% | $3,149,058 |
| Acuitas Investments, LLC | 0.88% | 355,651 | +143% | 1.9% | $2,944,790 |
| JPMORGAN CHASE & CO | 0.86% | 348,185 | -9.4% | 0% | $2,882,972 |
| NORTHERN TRUST CORP | 0.85% | 341,861 | -0.05% | 0% | $2,830,608 |
| CITADEL ADVISORS LLC | 0.78% | 313,128 | -37% | 0% | $2,592,700 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.74% | 296,891 | -13% | 0% | $2,458,257 |
| GOLDMAN SACHS GROUP INC | 0.74% | 296,503 | -9.4% | 0% | $2,455,044 |
| Avestar Capital, LLC | 0.69% | 280,000 | -8.2% | 0.17% | $2,318,400 |
| Roubaix Capital, LLC | 0.67% | 271,335 | 1% | $2,246,654 | |
| S Squared Technology, LLC | 0.65% | 260,972 | 0.82% | $2,160,848 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 152,286 | $1,351,236 | +$86,286 | $8.87 | 8 |
| 2025 Q3 | 27,616,926 | $228,672,580 | +$10,672,496 | $8.28 | 149 |
| 2025 Q2 | 25,873,699 | $321,885,289 | +$2,432,784 | $12.44 | 148 |
| 2025 Q1 | 26,049,629 | $238,071,066 | -$7,238,984 | $9.14 | 155 |
| 2024 Q4 | 26,285,953 | $386,256,244 | +$12,372,586 | $14.69 | 160 |
| 2024 Q3 | 25,384,652 | $377,488,422 | -$11,530,482 | $14.87 | 163 |
| 2024 Q2 | 25,536,541 | $518,597,091 | +$21,849,009 | $20.31 | 190 |
| 2024 Q1 | 24,086,651 | $571,329,849 | +$56,314,665 | $23.72 | 177 |
| 2023 Q4 | 21,913,831 | $357,396,303 | +$19,571,824 | $16.31 | 145 |
| 2023 Q3 | 20,741,996 | $250,955,659 | -$2,068,078 | $12.10 | 140 |
| 2023 Q2 | 20,691,193 | $378,234,050 | -$12,628,527 | $18.28 | 135 |
| 2023 Q1 | 21,882,233 | $302,345,038 | -$1,937,519 | $13.82 | 142 |
| 2022 Q4 | 22,159,452 | $283,877,249 | -$2,542,001 | $12.81 | 154 |
| 2022 Q3 | 21,928,376 | $362,581,390 | -$3,638,661 | $16.63 | 146 |
| 2022 Q2 | 22,167,063 | $352,287,078 | +$58,826,068 | $15.89 | 143 |
| 2022 Q1 | 17,665,130 | $461,641,992 | -$20,773,359 | $26.12 | 130 |
| 2021 Q4 | 17,814,819 | $606,722,300 | +$288,340,509 | $34.05 | 160 |
| 2021 Q3 | 9,414,715 | $247,947,229 | -$24,408,282 | $26.35 | 96 |
| 2021 Q2 | 8,953,351 | $350,345,837 | +$99,863,652 | $39.07 | 86 |
| 2021 Q1 | 5,484,949 | $270,678,019 | +$47,420,169 | $49.32 | 57 |
| 2020 Q4 | 4,933,511 | $137,704,000 | +$137,702,999 | $27.96 | 43 |
| 2020 Q3 | 30 | $1,000 | $33.33 | 1 | |
| 2020 Q2 | 30 | $1,000 | $33.33 | 1 | |
| 2020 Q1 | 30 | $1,000 | $33.33 | 1 | |
| 2019 Q4 | 30 | $1,000 | $33.33 | 1 | |
| 2019 Q3 | 30 | $1,000 | $33.33 | 1 | |
| 2019 Q2 | 30 | $1,000 | $33.33 | 1 | |
| 2019 Q1 | 30 | $1,000 | $33.33 | 1 |