PUBM
PubMatic, Inc. · Technology · Software - Application
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | 0 | 15.10K | $281,991 | n/a | n/a |
| Q2 2026 | 75 | +2 | 17.46M | $228.88M | +4 | −2 |
| Q1 2026 | 75 | +5 | 16.23M | $132.84M | +8 | −3 |
| Q4 2025 | 70 | +2 | 18.22M | $161.61M | +2 | n/a |
| Q3 2025 | 15 | -1 | 13.28M | $109.96M | n/a | −1 |
| Q2 2025 | 13 | 0 | 11.64M | $144.76M | +1 | −1 |
| Q1 2025 | 10 | 0 | 4.81M | $43.92M | +1 | −1 |
| Q4 2024 | 10 | -1 | 4.49M | $65.98M | n/a | −1 |
| Q3 2024 | 10 | 0 | 3.29M | $48.87M | +2 | −2 |
| Q2 2024 | 10 | n/a | 3.01M | $61.05M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Renaissance Technologies ✦ | 1.19M | n/a | $24.14M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 953.93K | n/a | $19.38M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 3 | Millennium Management ✦ | 324.07K | n/a | $6.58M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Wellington Management ✦ | 233.05K | n/a | $4.73M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 5 | Marshall Wace ✦ | 181.78K | n/a | $3.69M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 6 | Two Sigma Investments ✦ | 37.00K | n/a | $751,429 | 0.0% | n/c | 1 | SEC ↗ |
| 7 | Citadel Advisors ✦ | 35.85K | n/a | $728,215 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 8 | T. Rowe Price ✦ | 23.46K | n/a | $477,000 | 0.0% | n/c | 1 | SEC ↗ |
| 9 | Gotham Asset Management ✦ | 19.26K | n/a | $391,232 | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Point72 Asset Management ✦ | 8.76K | n/a | $177,954 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 153 holders, 28.60M shares, $192.36M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer, Director, 10% owner · 50.02K sh · $863,237
Officer · 2.60K sh · $46,240
Officer · 5.40K sh · $90,744
Officer · 22.17K sh · $413,815
Officer · 10.08K sh · $187,997
Officer, Director, 10% owner · 10.79K sh · $201,488
Officer, Director, 10% owner · 6.65K sh · $125,896
Officer, Director, 10% owner · 4.47K sh · $86,951
Officer, Director, 10% owner · 45.76K sh · $866,149
Officer, Director, 10% owner · 651 sh · $12,649
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology