PubMatic, Inc. 13F holders
153 funds reported a position in PubMatic, Inc. in their 13F for the quarter ended 30 June 2026, together 30.5 million shares worth $399.4 million. Against the quarter before, 19 opened a position, 58 added, 46 trimmed and 17 sold out; together they bought a net 1.6 million shares. The largest holders: Graham Holdings Co, BlackRock, Inc. and Vanguard Capital Management LLC.
Funds holding153as many as Q1 2026
Shares they held30.5Mworth $399.4 million
Net bought on the quarter1.6M sharesabout $21.5 million at the funds' values
Funds buying to selling77 to 63opened or added, to cut or sold
Opened 19Added 58Held 30Trimmed 46Sold out 17
What each fund did in PUBM against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in PUBM in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,241 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 28 reported a position in PubMatic, Inc.: 5 opened one, 6 added, 7 trimmed and 0 sold out, a net 145,962 shares bought.
| Fund | Change in shares | Shares now | Status | Filing |
|---|---|---|---|---|
| Avestar Capital, LLC | +137,688 | 192,688 | added | 13F |
| Y-Intercept (Hong Kong) Ltd | +25,656 | 25,656 | new | 13F |
| Inspire Investing, LLC | -17,511 | 34,159 | trimmed | 13F |
| State of Wyoming | -4,977 | 40,428 | trimmed | 13F |
| Diversified Investment Strategies, LLC | +3,000 | 143,000 | added | 13F |
| Caitong International Asset Management Co., Ltd | -2,356 | 88 | trimmed | 13F |
| Parkside Financial Bank & Trust | +2,347 | 2,347 | new | 13F |
| New York State Teachers Retirement System | +1,731 | 1,731 | new | 13F |
| Versant Capital Management, Inc | -597 | 10,060 | trimmed | 13F |
| Wealth Enhancement Advisory Services, LLC | +551 | 15,096 | added | 13F |
| State of Alaska, Department of Revenue | +333 | 1,600 | added | 13F |
| Financial Consulate, Inc. | +224 | 224 | new | 13F |
| Mirae Asset Global Investments Co., Ltd. | -162 | 2,084 | trimmed | 13F |
| Farther Finance Advisors, LLC | +55 | 452 | added | 13F |
| Sterling Capital Management LLC | -29 | 21,428 | trimmed | 13F |
| Gamma Investing LLC | +21 | 4,385 | added | 13F |
| SBI Securities Co., Ltd. | -15 | 513 | trimmed | 13F |
| Fortitude Family Office, LLC | +3 | 3 | new | 13F |
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 7 reported a position in PubMatic, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Renaissance Technologies, 1.4 million shares worth $18.6 million, 0.0% of its reported book. In the quarter, 4 funds added or opened a position and 3 trimmed or sold out; together they bought a net 341,699 shares, about $4.5 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Renaissance Technologies | 1,421,049 | $18.6 million | 0.0% | -119,484 | trimmed | 30 June 2026 | 13F |
| Geode Capital Management | 991,800 | $13.0 million | 0.0% | +41,195 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 638,102 | $8.4 million | 0.0% | +103,653 | added | 30 June 2026 | 13F |
| Citadel Advisors | 414,880 | $5.4 million | 0.0% | +265,837 | added | 30 June 2026 | 13F |
| Millennium Management | 86,059 | $1.1 million | 0.0% | -5,964 | trimmed | 30 June 2026 | 13F |
| Point72 Asset Management | 79,362 | $1.0 million | 0.0% | +57,059 | added | 30 June 2026 | 13F |
| FMR LLC | 8,459 | $110,985 | 0.0% | -597 | trimmed | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| Graham Holdings Co | 3,398,904 | 11.16% | $44.6 million | 4.12% | no change | 13F |
| BlackRock, Inc. | 3,279,530 | 10.77% | $43.0 million | 0.00% | +214,494 | 13F |
| Vanguard Capital Management LLC | 1,661,312 | 5.45% | $21.8 million | 0.00% | +47,543 | 13F |
| Acadian Asset Management LLC | 1,573,911 | 5.17% | $20.6 million | 0.03% | -2,629 | 13F |
| Dimensional Fund Advisors LP | 1,491,121 | 4.90% | $19.6 million | 0.00% | +245,762 | 13F |
| Renaissance Technologies LLC | 1,421,049 | 4.67% | $18.6 million | 0.03% | -119,484 | 13F |
| Whitefort Capital Management, LP | 1,110,656 | 3.65% | $14.6 million | 3.72% | +420,656 | 13F |
| Geode Capital Management, LLC | 991,800 | 3.26% | $13.0 million | 0.00% | +41,195 | 13F |
| Vanguard Portfolio Management LLC | 947,548 | 3.11% | $12.4 million | 0.00% | +308,763 | 13F |
| Jacobs Levy Equity Management, Inc. | 862,996 | 2.83% | $11.3 million | 0.04% | -69,217 | 13F |
| State Street Corp. | 854,147 | 2.80% | $11.2 million | 0.00% | +62,728 | 13F |
| S Squared Technology, LLC | 748,099 | 2.46% | $9.8 million | 3.05% | +71,700 | 13F |
| Simcoe Capital LLC | 693,903 | 2.28% | $9.1 million | 5.55% | +207,651 | 13F |
| Highbridge Capital Management LLC | 644,593 | 2.12% | $8.4 million | 0.46% | new | 13F |
| American Century Companies Inc. | 642,076 | 2.11% | $8.4 million | 0.00% | +529,804 | 13F |
| Two Sigma Investments, LP | 638,102 | 2.09% | $8.4 million | 0.01% | +103,653 | 13F |
| Royal Bank of Canada | 619,290 | 2.03% | $8.1 million | 0.00% | -120,991 | 13F |
| Nuveen, LLC | 464,187 | 1.52% | $6.1 million | 0.00% | +381,254 | 13F |
| Citadel Advisors LLC | 414,880 | 1.36% | $5.4 million | 0.00% | +265,837 | 13F |
| CenterBook Partners LP | 413,983 | 1.36% | $5.4 million | 0.27% | -1,328,117 | 13F |
| Trexquant Investment LP | 382,525 | 1.26% | $5.0 million | 0.03% | -39,898 | 13F |
| Northern Trust Corp. | 348,134 | 1.14% | $4.6 million | 0.00% | +57,573 | 13F |
| Charles Schwab Investment Management Inc. | 303,624 | 1.00% | $4.0 million | 0.00% | +8,821 | 13F |
| Panagora Asset Management Inc. | 287,735 | 0.94% | $3.8 million | 0.01% | +11,479 | 13F |
| AQR Capital Management LLC | 286,438 | 0.94% | $3.8 million | 0.00% | +161,484 | 13F |
| Morgan Stanley | 284,256 | 0.93% | $3.7 million | 0.00% | -57,414 | 13F |
| Quantinno Capital Management LP | 249,688 | 0.82% | $3.3 million | 0.00% | +42,873 | 13F |
| Vanguard Fiduciary Trust Co. | 240,677 | 0.79% | $3.2 million | 0.00% | +10,048 | 13F |
| Goldman Sachs Group Inc. | 240,578 | 0.79% | $3.2 million | 0.00% | -113,622 | 13F |
| JPMorgan Chase & Co. | 224,952 | 0.74% | $2.9 million | 0.00% | -15,515 | 13F |
| Franklin Resources Inc. | 223,316 | 0.73% | $2.9 million | 0.00% | +85,136 | 13F |
| Jane Street Group, LLC | 199,131 | 0.65% | $2.6 million | 0.00% | -10,869 | 13F |
| Arrowstreet Capital, Limited Partnership | 195,563 | 0.64% | $2.6 million | 0.00% | -10,724 | 13F |
| UBS Group AG | 186,033 | 0.61% | $2.4 million | 0.00% | +107,453 | 13F |
| Susquehanna International Group, LLP | 182,447 | 0.60% | $2.4 million | 0.00% | -56,537 | 13F |
| Boothbay Fund Management, LLC | 181,615 | 0.60% | $2.4 million | 0.04% | new | 13F |
| Bridgeway Capital Management, LLC | 175,300 | 0.58% | $2.3 million | 0.04% | no change | 13F |
| Bank of America Corp. | 173,956 | 0.57% | $2.3 million | 0.00% | +78,526 | 13F |
| Pinnacle Holdings, LLC | 158,250 | 0.52% | $2.1 million | 0.67% | +366 | 13F |
| P.a.w. Capital Corp. | 150,000 | 0.49% | $2.0 million | 1.51% | -30,000 | 13F |
| Diversified Investment Strategies, LLC | 140,000 | 0.46% | $1.8 million | 1.19% | no change | 13F |
| Ameriprise Financial Inc. | 134,001 | 0.44% | $1.8 million | 0.00% | no change | 13F |
| Bank of New York Mellon Corp | 121,540 | 0.40% | $1.6 million | 0.00% | +8,231 | 13F |
| Invesco Ltd. | 103,232 | 0.34% | $1.4 million | 0.00% | -14,534 | 13F |
| Jump Financial, LLC | 100,612 | 0.33% | $1.3 million | 0.01% | new | 13F |
| Deutsche Bank AG | 93,716 | 0.31% | $1.2 million | 0.00% | +11,654 | 13F |
| Millennium Management LLC | 86,059 | 0.28% | $1.1 million | 0.00% | -5,964 | 13F |
| Mirae Asset Global ETFS Holdings Ltd. | 85,805 | 0.28% | $1.1 million | 0.00% | -34,947 | 13F |
| Victory Capital Management Inc. | 84,859 | 0.28% | $1.1 million | 0.00% | +7,627 | 13F |
| Russell Investments Group, Ltd. | 83,628 | 0.27% | $1.1 million | 0.00% | +17,337 | 13F |
The 50 largest of the 153 funds that reported a position in PUBM in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on PUBM
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Puts | 137,300 | $1.8 million | 30 June 2026 | 13F |
| Citadel Advisors | Calls | 93,100 | $1.2 million | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 15 May 2026 | 13G/A | Graham Holdings Company and 1 other | 3.4 million | 8.9% | 31 March 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 27 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 21 January 2026 | 13G/A | BlackRock, Inc. and 1 other | 2.7 million | 7.1% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 25 September 2026 | 357 | $18.55 | SEC |
| 21 September 2026 | 200 | $17.55 | SEC |
| 4 September 2026 | 4,839 | $16.96 | SEC |
| 24 August 2026 | 300 | $16.41 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.