PubMatic Ownership | Who Owns PubMatic?
PubMatic Ownership Summary
PubMatic is owned by 25.90% institutional investors, 0.76% insiders, and 73.34% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 7.18% of PUBM shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.78% of its assets in PubMatic shares.
PUBM Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | PubMatic | 25.90% | 0.76% | 73.34% |
| Sector | Technology Stocks | 50.63% | 12.61% | 36.76% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 3.39M | 7.18% | $28.05M |
| Blackrock | 3.40M | 6.79% | $69.01M |
| Graham | 2.83M | 6.00% | $23.44M |
| Vanguard group | 2.50M | 5.30% | $20.69M |
| Wellington management group llp | 1.47M | 3.11% | $12.16M |
| Dimensional fund advisors lp | 1.47M | 3.11% | $12.14M |
| Renaissance | 1.36M | 2.87% | $11.22M |
| Royal bank of canada | 1.09M | 2.32% | $9.06M |
| Geode capital management | 961.49K | 2.04% | $7.96M |
| State street | 927.23K | 1.97% | $7.68M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Graham | 2.83M | 2.35% | $23.44M |
| Acuitas investments | 146.49K | 1.89% | $2.94M |
| P.a.w. capital | 120.00K | 1.72% | $993.60K |
| Roubaix capital | 271.33K | 1.05% | $2.25M |
| S squared | 260.97K | 0.82% | $2.16M |
| Leibman financial services | 104.82K | 0.66% | $867.94K |
| Manatuck hill partners | 200.00K | 0.55% | $1.66M |
| Diversified investment strategies | 85.00K | 0.46% | $703.80K |
| Pinnacle | 138.82K | 0.40% | $1.15M |
| Centerbook partners lp | 748.46K | 0.31% | $6.20M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Centerbook partners lp | 748.46K | 0.31% | 527.65K |
| Ubs group | 422.63K | 0.00% | 303.48K |
| Roubaix capital | 271.33K | 1.05% | 271.33K |
| S squared | 260.97K | 0.82% | 260.97K |
| Two sigma investments, lp | 384.90K | 0.00% | 228.88K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Nixon capital | - | - | -628.75K |
| Nordea investment management ab | - | - | -346.05K |
| Gratus capital | - | - | -280.90K |
| Pacer advisors | - | - | -268.64K |
| Millennium management | 122.72K | 0.00% | -238.66K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Roubaix capital | 271.33K | 1.05% | 271.33K | $2.25M |
| S squared | 260.97K | 0.82% | 260.97K | $2.16M |
| Manatuck hill partners | 200.00K | 0.55% | 200.00K | $1.66M |
| P.a.w. capital | 120.00K | 1.72% | 120.00K | $993.60K |
| Counterpoint mutual funds | 43.43K | 0.03% | 43.43K | $359.59K |
Sold Out
| Holder | Change |
|---|---|
| Nbc securities | -1.00 |
| Fortitude family office | -1.00 |
| Principal securities | -1.00 |
| Ifp advisors | -2.00 |
| West branch capital | -5.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 65 | -57.24% | 12,223,240 | -49.95% | 25 | 0.97% | 28 | -62.16% | 24 | -44.19% |
| Jun 30, 2025 | 161 | -3.59% | 25,873,720 | -0.68% | 54 | 1.89% | 76 | - | 47 | -16.07% |
| Mar 31, 2025 | 4 | -97.70% | 354,848 | -98.65% | - | 0.03% | 2 | -97.47% | 2 | -96.08% |
| Dec 31, 2024 | 77 | -57.69% | 13,260,563 | -47.78% | 27 | 1.01% | 32 | -62.79% | 25 | -50.98% |
| Sep 30, 2024 | 182 | -12.08% | 25,393,974 | -0.62% | 51 | 1.96% | 86 | -23.89% | 51 | 6.25% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 1.27M | 2.78% | -28.14K |
| Vanguard US Total Market Shares ETF | 1.29M | 2.67% | - |
| iShares Russell 2000 ETF | 1.03M | 2.25% | - |
| Vanguard Small Cap Index | 494.28K | 1.02% | 1.80K |
| Vanguard Institutional Extnd Mkt Idx Tr | 436.36K | 0.96% | -201.28K |
| Fidelity Small Cap Index | 418.94K | 0.92% | 14.98K |
| iShares Russell 2000 Value ETF | 362.04K | 0.79% | - |
| iShares Russell 2000 Growth ETF | 342.44K | 0.71% | - |
| Nuveen Quant Small Cap Equity R6 | 304.82K | 0.67% | - |
| DFA US Targeted Value I | 288.67K | 0.63% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jan 20, 2026 | Goel Rajeev K. | CHIEF EXECUTIVE OFFICER | Sell | $332.06K |
| Jan 06, 2026 | Goel Amar K. | CHAIRMAN, CHIEF INNOVATION OFF | Sell | $62.51K |
| Jan 06, 2026 | Klimenko Paulina | CHIEF GROWTH OFFICER | Sell | $107.51K |
| Jan 02, 2026 | Goel Rajeev K. | CHIEF EXECUTIVE OFFICER | Sell | $218.19K |
| Jan 05, 2026 | Goel Rajeev K. | CHIEF EXECUTIVE OFFICER | Sell | $387.32K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q1 | - | 11 |
| 2025 Q4 | - | 16 |
| 2025 Q3 | - | 16 |
| 2025 Q2 | - | 18 |
| 2025 Q1 | - | 21 |
PUBM Ownership FAQ
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