PUBMATIC INC PUBM
COM CL A · Common Stock · CUSIP 74467Q103 · ISIN US74467Q1031
- SectorTechnology
- IndustryServices-Computer Programming, Data Processing, Etc.
- HeadquartersRedwood City, CA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($631.7k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $13.11. Options: 8 managers hold calls ($18.6m notional), 9 hold puts ($10.9m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 157 |
| Q4 2022 | 163 |
| Q1 2023 | 150 |
| Q2 2023 | 142 |
| Q3 2023 | 144 |
| Q4 2023 | 149 |
| Q1 2024 | 180 |
| Q2 2024 | 194 |
| Q3 2024 | 168 |
| Q4 2024 | 162 |
| Q1 2025 | 158 |
| Q2 2025 | 151 |
| Q3 2025 | 150 |
| Q4 2025 | 152 |
| Q1 2026 | 153 |
| Q2 2026 | 153 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 86 | 102 |
| Q4 2024 | 71 | 84 |
| Q1 2025 | 76 | 90 |
| Q2 2025 | 78 | 78 |
| Q3 2025 | 74 | 75 |
| Q4 2025 | 81 | 77 |
| Q1 2026 | 86 | 73 |
| Q2 2026 | 78 | 63 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $10.5m | $4.3m | 0.41 |
| Q4 2025 | $9.6m | $5.3m | 0.56 |
| Q1 2026 | $7.6m | $9.7m | 1.27 |
| Q2 2026 | $18.6m | $10.9m | 0.59 |
Biggest buyers
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | New | +644.6k |
| AMERICAN CENTURY COMPANIES INC | Added | +529.8k |
| Whitefort Capital Management, LP | Added | +420.7k |
| Nuveen, LLC | Added | +381.3k |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Added | +308.8k |
| CITADEL ADVISORS LLC | Added | +265.8k |
| DIMENSIONAL FUND ADVISORS LP | Added | +245.8k |
| BlackRock, Inc. | Added | +214.5k |
| Simcoe Capital LLC | Added | +207.7k |
| BOOTHBAY FUND MANAGEMENT, LLC | New | +181.6k |
Biggest sellers
| CenterBook Partners LP | Reduced | -1.3m |
| D. E. Shaw & Co., Inc. | Reduced | -400.8k |
| TUDOR INVESTMENT CORP ET AL | Sold out | -351.1k |
| ROYAL BANK OF CANADA | Reduced | -121.0k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -119.5k |
| Man Group plc | Sold out | -117.7k |
| GOLDMAN SACHS GROUP INC | Reduced | -113.6k |
| GSA CAPITAL PARTNERS LLP | Sold out | -89.1k |
| Cardinal Point Capital Management ULC | Sold out | -71.5k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Reduced | -69.2k |
Biggest calls
| Walleye Trading LLC | Added | $14.3m1.1m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.3m96.3k shares |
| CITADEL ADVISORS LLC | Reduced | $1.2m93.1k shares |
| IMC-Chicago, LLC | Added | $999.7k76.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $425.1k32.4k shares |
| JANE STREET GROUP, LLC | Reduced | $211.2k16.1k shares |
| GROUP ONE TRADING LLC | Added | $80.0k6.1k shares |
| Walleye Capital LLC | New | $70.8k5.4k shares |
Biggest puts
| SIMPLEX TRADING, LLC | Added | $1.9m141.5k shares |
| CITADEL ADVISORS LLC | Reduced | $1.8m137.3k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.7m128.6k shares |
| Walleye Trading LLC | Reduced | $1.5m114.2k shares |
| GROUP ONE TRADING LLC | Added | $1.5m112.1k shares |
| Caption Management, LLC | New | $1.2m90.0k shares |
| IMC-Chicago, LLC | Added | $1.1m81.0k shares |
| Walleye Capital LLC | New | $188.9k14.4k shares |
| JANE STREET GROUP, LLC | Reduced | $132.5k10.1k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Graham Holdings Co 13G · passive investor +1.9 pts · filed 2026-05-15 | 8.9% |
| BlackRock, Inc. 13G · institution filed 2026-01-21 | 7.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 7 | $3.0m | $2.8m |
| Q1 2025 | 0 | — | 7 | $2.4m | $1.6m |
| Q2 2025 | 0 | — | 7 | $2.8m | $2.6m |
| Q3 2025 | 0 | — | 7 | $3.9m | $3.3m |
| Q4 2025 | 0 | — | 7 | $3.2m | $2.7m |
| Q1 2026 | 0 | — | 7 | $3.1m | $2.9m |
| Q2 2026 | 0 | — | 7 | $3.9m | $3.0m |
| Q3 2026 | 0 | — | 7 | $10.4m | $10.1m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-24 | Goel Rajeev K. CHIEF EXECUTIVE OFFICER, director | Sold plan | $930.5k50.5k shares |
| 2026-09-16 | Kumar Mukul PRESIDENT, ENGINEERING | Sold plan | $134.2k8.0k shares |
| 2026-09-03 | Goel Amar K. CHAIRMAN, CHIEF INNOVATION OFF, director | Sold plan | $106.5k6.2k shares |
| 2026-09-01 | Gimbel Lisa CHIEF ACCOUNTING OFFICER | Sold plan | $8.2k500 shares |
| 2026-08-20 | Goel Rajeev K. CHIEF EXECUTIVE OFFICER, director | Sold plan | $824.2k50.0k shares |
| 2026-08-17 | Kumar Mukul PRESIDENT, ENGINEERING | Sold plan | $136.4k8.0k shares |
| 2026-08-13 | Pantelick Steven CHIEF FINANCIAL OFFICER | Sold plan | $341.3k19.7k shares |
| 2026-08-12 | Pantelick Steven CHIEF FINANCIAL OFFICER | Sold plan | $383.0k22.2k shares |
| 2026-08-12 | Gimbel Lisa CHIEF ACCOUNTING OFFICER | Sold plan | $8.8k500 shares |
| 2026-08-10 | Woods Andrew GENERAL COUNSEL & SECRETARY | Sold plan | $688.4k38.3k shares |
| 2026-08-07 | Goel Rajeev K. CHIEF EXECUTIVE OFFICER, director | Sold plan | $3.7m211.3k shares |
| 2026-07-23 | Goel Rajeev K. CHIEF EXECUTIVE OFFICER, director | Sold plan | $617.2k50.0k shares |
| 2026-07-16 | Goel Rajeev K. CHIEF EXECUTIVE OFFICER, director | Sold plan | $124.9k9.0k shares |
| 2026-07-16 | Kumar Mukul PRESIDENT, ENGINEERING | Sold plan | $109.4k8.0k shares |
| 2026-07-16 | Woods Andrew GENERAL COUNSEL & SECRETARY | Sold plan | $45.4k3.2k shares |
| 2026-07-15 | Goel Rajeev K. CHIEF EXECUTIVE OFFICER, director | Sold plan | $56.4k4.1k shares |
| 2026-07-06 | Pantelick Steven CHIEF FINANCIAL OFFICER | Sold plan | $168.4k12.5k shares |
| 2026-07-06 | Klimenko Paulina CHIEF GROWTH OFFICER | Sold plan | $120.9k9.0k shares |
| 2026-07-02 | Goel Rajeev K. CHIEF EXECUTIVE OFFICER, director | Sold plan | $805.5k58.9k shares |
| 2026-07-02 | Pantelick Steven CHIEF FINANCIAL OFFICER | Sold plan | $321.4k23.5k shares |
| 2026-07-02 | Klimenko Paulina CHIEF GROWTH OFFICER | Sold plan | $203.6k14.9k shares |
| 2026-07-02 | Kumar Mukul PRESIDENT, ENGINEERING | Sold | $107.8k7.9k shares |
| 2026-07-02 | Goel Amar K. CHAIRMAN, CHIEF INNOVATION OFF, director | Sold | $89.9k6.6k shares |
| 2026-07-02 | Woods Andrew GENERAL COUNSEL & SECRETARY | Sold | $78.6k5.8k shares |
| 2026-07-01 | Goel Rajeev K. CHIEF EXECUTIVE OFFICER, director | Sold plan | $238.9k17.2k shares |
| 2026-06-18 | Goel Rajeev K. CHIEF EXECUTIVE OFFICER, director | Sold plan | $486.8k43.1k shares |
| 2026-06-08 | Goel Rajeev K. CHIEF EXECUTIVE OFFICER, director | Sold plan | $498.5k44.0k shares |
| 2026-06-02 | Kumar Mukul PRESIDENT, ENGINEERING | Sold plan | $95.7k8.0k shares |
| 2026-05-26 | Goel Rajeev K. CHIEF EXECUTIVE OFFICER, director | Sold plan | $458.0k44.0k shares |
| 2026-05-18 | Gimbel Lisa CHIEF ACCOUNTING OFFICER | Sold | $28.3k2.9k shares |
The latest 30 of 42 trades.
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| Graham Holdings Co 4.12% of their portfolio | 3.4m $44.6m | Unchanged |
| BlackRock, Inc. 0.00% of their portfolio | 3.3m $43.0m | Added +214.5k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.7m $21.8m | Added +47.5k |
| ACADIAN ASSET MANAGEMENT LLC 0.02% of their portfolio | 1.6m $20.6m | Reduced -2.6k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 1.5m $19.6m | Added +245.8k |
| RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio | 1.4m $18.6m | Reduced -119.5k |
| Whitefort Capital Management, LP 3.59% of their portfolio | 1.1m $14.6m | Added +420.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 991.8k $13.0m | Added +41.2k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 947.5k $12.4m | Added +308.8k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.04% of their portfolio | 863.0k $11.3m | Reduced -69.2k |
| STATE STREET CORP 0.00% of their portfolio | 854.1k $11.2m | Added +62.7k |
| S SQUARED TECHNOLOGY, LLC 3.05% of their portfolio | 748.1k $9.8m | Added +71.7k |
| Simcoe Capital LLC 5.55% of their portfolio | 693.9k $9.1m | Added +207.7k |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC 0.29% of their portfolio | 644.6k $8.4m | New |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 642.1k $8.4m | Added +529.8k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 638.1k $8.4m | Added +103.7k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 619.3k $8.1m | Reduced -121.0k |
| Nuveen, LLC 0.00% of their portfolio | 464.2k $6.1m | Added +381.3k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 414.9k $5.4m | Added +265.8k |
| CenterBook Partners LP 0.27% of their portfolio | 414.0k $5.4m | Reduced -1.3m |
| Trexquant Investment LP 0.03% of their portfolio | 382.5k $5.0m | Reduced -39.9k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 348.1k $4.6m | Added +57.6k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 303.6k $4.0m | Added +8.8k |
| PANAGORA ASSET MANAGEMENT INC 0.01% of their portfolio | 287.7k $3.8m | Added +11.5k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 286.4k $3.8m | Added +161.5k |
| MORGAN STANLEY 0.00% of their portfolio | 284.3k $3.7m | Reduced -57.4k |
| Quantinno Capital Management LP 0.00% of their portfolio | 249.7k $3.3m | Added +42.9k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 240.7k $3.2m | Added +10.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 240.6k $3.2m | Reduced -113.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 225.0k $2.9m | Reduced -15.5k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 223.3k $2.9m | Added +85.1k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 199.1k $2.6m | Reduced -10.9k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 195.6k $2.6m | Reduced -10.7k |
| UBS Group AG 0.00% of their portfolio | 186.0k $2.4m | Added +107.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 182.4k $2.4m | Reduced -56.5k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.04% of their portfolio | 181.6k $2.4m | New |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.04% of their portfolio | 175.3k $2.3m | Unchanged |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 174.0k $2.3m | Added +78.5k |
| Pinnacle Holdings, LLC 0.64% of their portfolio | 158.2k $2.1m | Added +366 |
| P.A.W. CAPITAL CORP 1.51% of their portfolio | 150.0k $2.0m | Reduced -30.0k |
| Diversified Investment Strategies, LLC 1.19% of their portfolio | 140.0k $1.8m | Unchanged |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 134.0k $1.8m | Unchanged |
| Bank of New York Mellon Corp 0.00% of their portfolio | 121.5k $1.6m | Added +8.2k |
| Invesco Ltd. 0.00% of their portfolio | 103.2k $1.4m | Reduced -14.5k |
| Jump Financial, LLC 0.01% of their portfolio | 100.6k $1.3m | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 93.7k $1.2m | Added +11.7k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 86.1k $1.1m | Reduced -6.0k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 85.8k $1.1m | Reduced -34.9k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 84.9k $1.1m | Added +7.6k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 83.6k $1.1m | Added +17.3k |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 79.4k $1.0m | Added +57.1k |
| GROUP ONE TRADING LLC 0.03% of their portfolio | 72.4k $950.0k | Added +8.6k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 66.4k $871.5k | Unchanged |
| Walleye Capital LLC 0.00% of their portfolio | 63.3k $831.0k | New |
| Squarepoint Ops LLC 0.00% of their portfolio | 62.1k $815.2k | Added +39.0k |
| SIMPLEX TRADING, LLC 0.02% of their portfolio | 59.1k $774.7k | Added +38.1k |
| BARCLAYS PLC 0.00% of their portfolio | 59.0k $774.3k | Reduced -17.9k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.00% of their portfolio | 58.5k $767.5k | Reduced -900 |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 57.3k $748.6k | Reduced -33.0k |
| Creative Planning 0.00% of their portfolio | 57.1k $749.7k | Added +8.9k |
| Avestar Capital, LLC 0.04% of their portfolio | 55.0k $721.6k | Unchanged |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 53.1k $696.5k | Reduced -247 |
| Inspire Investing, LLC 0.03% of their portfolio | 51.7k $677.9k | New |
| IMC-Chicago, LLC 0.01% of their portfolio | 50.1k $657.1k | Added +13.2k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 49.6k $650.3k | Reduced -189 |
| State of Wyoming 0.06% of their portfolio | 45.4k $595.7k | Added +38.0k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 44.3k $581.5k | Reduced -400.8k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 42.9k $562.8k | New |
| STRS OHIO 0.00% of their portfolio | 38.0k $498.6k | Added +6.9k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.00% of their portfolio | 36.4k $478.1k | Reduced -295 |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 36.2k $296.1k | Unchanged |
| XTX Topco Ltd 0.01% of their portfolio | 33.5k $439.5k | Reduced -35.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 32.9k $431.7k | Reduced -27.8k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 32.0k $421.0k | Added +1.1k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 28.3k $370.9k | Added +560 |
| Allworth Financial LP 0.00% of their portfolio | 25.7k $337.4k | Added +551 |
| MetLife Investment Management, LLC 0.00% of their portfolio | 24.5k $321.5k | Unchanged |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 24.4k $319.9k | Added +8.4k |
| Cambria Investment Management, L.P. 0.01% of their portfolio | 22.8k $299.5k | New |
| Cornerstone Investment Partners, LLC 0.01% of their portfolio | 22.6k $296.9k | New |
| GWN SECURITIES INC. 0.05% of their portfolio | 22.1k $290.2k | Reduced -2.5k |
| Sterling Capital Management LLC 0.00% of their portfolio | 21.5k $281.5k | Added +20.2k |
| Caption Management, LLC 0.01% of their portfolio | 20.9k $274.9k | New |
| CITIGROUP INC 0.00% of their portfolio | 20.8k $272.5k | Added +15.9k |
| MEEDER ASSET MANAGEMENT INC 0.01% of their portfolio | 19.4k $254.7k | Reduced -406 |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 18.9k $248.1k | New |
| Focus Partners Wealth 0.00% of their portfolio | 17.8k $233.9k | Added +3.9k |
| DIVERSIFIED TRUST CO 0.00% of their portfolio | 17.6k $230.4k | Unchanged |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 17.4k $228.5k | Reduced -20.0k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 17.0k $222.7k | Added +1.2k |
| WINTON GROUP Ltd 0.01% of their portfolio | 16.9k $221.7k | Added +3.7k |
| Grantham, Mayo, Van Otterloo & Co. LLC 0.00% of their portfolio | 16.0k $209.6k | New |
| Mariner, LLC 0.00% of their portfolio | 15.1k $198.2k | New |
| Jasper Ridge Partners, L.P. 0.00% of their portfolio | 15.0k $197.2k | Unchanged |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 14.5k $197.1k | New |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.01% of their portfolio | 13.4k $175.4k | New |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 12.5k $163.4k | Unchanged |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 12.4k $163.1k | Unchanged |
| Cetera Investment Advisers 0.00% of their portfolio | 12.1k $158.2k | Reduced -200 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 11.8k $154.2k | Unchanged |