PubMatic
PUBM · NASDAQ
$17.46+$0.45 (+2.65%)TodayMarket closed ·
Prev close $17.01
Who owns PUBM
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 35.0% of PUBM’s shares.
- Graham Holdings Co7.3%
- BlackRock Institutional Trust Company, N.A.6.1%
- Vanguard Capital Management, LLC3.6%
- Acadian Asset Management LLC3.4%
- Next 6 largest institutions14.7%
- All other shareholders65.0%
| Holder | Shares | % of shares |
|---|---|---|
| Graham Holdings Co | 3.40M | 7.32% |
| BlackRock Institutional Trust Company, N.A. | 2.81M | 6.06% |
| Vanguard Capital Management, LLC | 1.66M | 3.58% |
| Acadian Asset Management LLC | 1.57M | 3.39% |
| Dimensional Fund Advisors, L.P. | 1.49M | 3.21% |
| Renaissance Technologies LLC | 1.42M | 3.06% |
| Whitefort Capital Management, LP | 1.11M | 2.39% |
| Geode Capital Management, L.L.C. | 991.80K | 2.14% |
| Vanguard Portfolio Management, LLC | 947.55K | 2.04% |
| Jacobs Levy Equity Management, Inc. | 863.00K | 1.86% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 1.21M | 2.60% |
| iShares Russell 2000 ETF | 1.03M | 2.22% |
| Avantis US Small Cap Value ETF | 683.92K | 1.47% |
| Fidelity Small Cap Index Fund | 424.11K | 0.91% |
| Vanguard Extended Market Index Fund | 416.58K | 0.90% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $15.45M (49 trades) of PUBM on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Woods Andrew | Sale | 10.08K | $188.00K |
| Goel Amar K. | Sale | 10.79K | $201.49K |
| Pantelick Steven | Sale | 22.17K | $413.81K |
| Woods Andrew | Sale | 512 | $9.95K |
| Woods Andrew | Sale | 5.23K | $99.04K |
| Goel Rajeev K. | Sale | 4.47K | $86.95K |
| Goel Rajeev K. | Sale | 45.76K | $866.15K |
| Goel Amar K. | Sale | 651 | $12.65K |
| Goel Amar K. | Sale | 6.65K | $125.90K |
| Pantelick Steven | Sale | 2.09K | $40.67K |
Short interest
Settled Sep 30, 2026
- Shares short
- 2.72M
- Days to cover
- 3.19
- % of shares outstanding
- 5.86%
- Average daily volume
- 853.65K
- Change since last report
- +11.5%
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