Brian M. Stuglik is CEO at Verastem, Inc. (VSTM). They have made 24 open-market trades across 1 company since 2018, most recently 2026-06-12.
CIK 0001716328
1 open-market purchase totalling $7K since 2018, against 23 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| VSTM | 137,147 | $1.2M |
| PBYI | 113,858 | $1.1M |
| Total | $2.3M |
Shares reported on the most recent Form 4, priced at the 2026-06-15 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 |
|---|---|---|---|---|---|---|---|---|
| PBYI | SELL · 10b5-1 | 2026-06-12 | 2026-06-15 | $7.20 | $58K | +14.0% | +17.8% | +28.3% |
| VSTM | SELL | 2025-12-16 | 2025-12-18 | $9.14 | $5K | -0.5% | -14.3% | -28.6% |
| VSTM | SELL | 2025-09-16 | 2025-09-18 | $9.99 | $6K | -6.5% | -15.0% | -15.7% |
| VSTM | SELL | 2025-06-16 | 2025-06-20 | $5.65 | $3K | -0.6% | +4.5% | +95.5% |
| PBYI | SELL · 10b5-1 | 2025-06-13 | 2025-06-17 | $3.39 | $27K | +0.9% | -1.2% | +36.5% |
| VSTM | SELL | 2025-03-17 | 2025-03-19 | $6.95 | $4K | -13.1% | -10.5% | -23.5% |
| VSTM | SELL | 2024-12-16 | 2024-12-20 | $4.48 | $4K | +66.3% | +28.0% | +62.0% |
| VSTM | SELL | 2024-09-19 | 2024-09-20 | $2.79 | $937 | +0.3% | +23.1% | +53.1% |
| VSTM | SELL | 2024-09-16 | 2024-09-18 | $2.80 | $2K | +6.0% | +5.0% | +63.1% |
| VSTM | SELL | 2024-06-17 | 2024-06-20 | $3.39 | $3K | -10.5% | +4.3% | -17.4% |
| PBYI | SELL · 10b5-1 | 2024-06-13 | 2024-06-17 | $3.39 | $34K | +2.5% | +14.8% | -20.8% |
| VSTM | SELL | 2024-03-18 | 2024-03-20 | $10.60 | $9K | -1.5% | -15.9% | -72.1% |
| VSTM | SELL | 2023-12-18 | 2023-12-20 | $7.67 | $6K | +4.9% | +43.2% | +45.0% |
| VSTM | SELL | 2023-09-18 | 2023-09-20 | $9.88 | $7K | -16.3% | -21.7% | -14.5% |
| VSTM | SELL | 2023-06-16 | 2023-06-21 | $10.06 | $8K | -19.4% | +2.9% | -1.2% |
| PBYI | SELL · 10b5-1 | 2023-06-13 | 2023-06-15 | $3.46 | $34K | -7.6% | -3.4% | -5.4% |
| VSTM | SELL | 2023-03-16 | 2023-03-20 | $0.41 | $4K | -12.1% | -13.5% | +79.1% |
| VSTM | SELL | 2022-12-16 | 2022-12-20 | $0.40 | $11K | +12.5% | +50.3% | +21.5% |
| VSTM | SELL | 2022-09-19 | 2022-09-21 | $1.13 | $4K | -17.5% | -70.6% | -65.0% |
| VSTM | SELL | 2022-08-01 | 2022-08-02 | $1.08 | $6K | +16.5% | +5.5% | -61.5% |
| VSTM | SELL | 2022-06-21 | 2022-06-22 | $1.14 | $4K | +9.9% | +5.4% | +0.9% |
| PBYI | SELL · 10b5-1 | 2022-06-16 | 2022-06-21 | $2.69 | $35K | +1.8% | +17.6% | -13.9% |
| VSTM | SELL | 2022-05-16 | 2022-05-17 | $1.03 | $14K | +9.5% | -10.3% | +18.1% |
| VSTM | SELL | 2022-05-02 | 2022-05-04 | $1.41 | $8K | -29.0% | -8.3% | -25.5% |
| VSTM | SELL | 2022-03-21 | 2022-03-23 | $1.27 | $4K | +16.8% | +19.1% | -16.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.