Lisa Gimbel is CAO at PubMatic, Inc. (PUBM). They have made 11 open-market trades across 1 company since 2024, most recently 2026-10-01.
CIK 0001980851
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 11 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PUBM | 15,927 | $265K |
Shares reported on the most recent Form 4, priced at the 2026-10-02 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PUBM | SELL · 10b5-1 | 2026-10-01 | 2026-10-02 | $18.99 | $9K | -3.5% | — | — |
| PUBM | SELL · 10b5-1 | 2026-09-01 | 2026-09-02 | $16.43 | $8K | -3.4% | +6.0% | — |
| PUBM | SELL · 10b5-1 | 2026-08-12 | 2026-08-14 | $17.50 | $9K | -6.7% | -4.8% | — |
| PUBM | SELL | 2026-05-18 | 2026-08-18 | $17.04 | $24K | -2.9% | +0.5% | N/A |
| PUBM | SELL | 2026-05-18 | 2026-05-19 | $9.89 | $28K | +23.6% | +14.2% | +74.4% |
| PUBM | SELL | 2026-02-17 | 2026-02-18 | $6.29 | $8K | +24.7% | +21.7% | +53.4% |
| PUBM | SELL | 2025-11-17 | 2025-11-19 | $9.37 | $10K | -1.6% | -4.1% | -31.7% |
| PUBM | SELL | 2025-08-18 | 2025-08-19 | $8.41 | $9K | +6.6% | +6.1% | +12.9% |
| PUBM | SELL · 10b5-1 | 2025-06-03 | 2025-06-04 | $11.98 | $13K | -7.2% | +2.6% | -29.8% |
| PUBM | SELL | 2025-05-16 | 2025-05-20 | $11.50 | $12K | +4.7% | -2.9% | -25.5% |
| PUBM | SELL | 2025-02-18 | 2025-02-19 | $15.39 | $14K | -31.8% | -35.5% | -23.8% |
| PUBM | SELL · 10b5-1 | 2025-02-03 | 2025-02-05 | $14.69 | $4K | -0.3% | -37.7% | -37.4% |
| PUBM | SELL · 10b5-1 | 2025-01-02 | 2025-01-03 | $14.97 | $4K | -5.1% | -0.8% | -44.9% |
| PUBM | SELL · 10b5-1 | 2024-12-02 | 2024-12-04 | $16.34 | $15K | -2.4% | -9.4% | -37.2% |
| PUBM | SELL | 2024-11-18 | 2024-11-19 | $14.60 | $20K | +9.1% | -0.1% | +1.5% |
| PUBM | SELL | 2024-11-18 | 2025-01-06 | $14.60 | $12K | -5.7% | +1.2% | -48.8% |
| PUBM | SELL | 2024-08-16 | 2024-08-27 | $14.25 | $47K | -9.1% | -6.2% | +2.9% |
| PUBM | SELL | 2024-05-16 | 2024-05-30 | $23.14 | $18K | -8.3% | -12.9% | -34.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.