Harold Bernstein is President & CMO at Maze Therapeutics, Inc. (MAZE). They have made 4 open-market trades across 1 company since 2025, most recently 2026-10-01.
CIK 0002050172
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 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MAZE | 16,141 | $444K |
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 |
|---|---|---|---|---|---|---|---|---|
| MAZE | SELL · 10b5-1 | 2026-10-01 | 2026-10-02 | $26.93 | $435K | +0.6% | — | — |
| MAZE | SELL · 10b5-1 | 2026-09-04 | 2026-09-08 | $26.22 | $255K | -14.6% | -2.0% | — |
| MAZE | SELL | 2026-09-02 | 2026-09-04 | $26.24 | $270K | -8.5% | +3.2% | — |
| MAZE | SELL · 10b5-1 | 2026-09-01 | 2026-09-03 | $26.36 | $426K | -7.0% | +3.1% | — |
| MAZE | SELL · 10b5-1 | 2026-08-13 | 2026-08-14 | $27.61 | $446K | +8.2% | -9.7% | — |
| MAZE | SELL · 10b5-1 | 2026-07-01 | 2026-07-02 | $29.90 | $437K | -6.6% | -13.2% | -13.4% |
| MAZE | SELL · 10b5-1 | 2026-06-01 | 2026-06-03 | $25.66 | $381K | -2.8% | +30.1% | +6.5% |
| MAZE | SELL · 10b5-1 | 2026-05-14 | 2026-05-18 | $26.22 | $393K | +9.0% | +2.4% | +15.2% |
| MAZE | SELL · 10b5-1 | 2026-04-01 | 2026-04-02 | $29.46 | $442K | -6.6% | -6.1% | +3.7% |
| MAZE | SELL · 10b5-1 | 2026-03-20 | 2026-03-20 | $49.10 | $1.5M | -40.6% | -45.1% | -47.5% |
| MAZE | SELL | 2026-03-10 | 2026-03-12 | $50.45 | $1.5M | -5.3% | -47.0% | -54.3% |
| MAZE | SELL | 2026-02-02 | 2026-02-04 | $46.02 | $690K | +0.6% | -4.0% | -43.1% |
| MAZE | SELL · 10b5-1 | 2026-01-07 | 2026-01-09 | $40.20 | $1.0M | +15.0% | +18.8% | -30.6% |
| MAZE | SELL | 2026-01-02 | 2026-01-06 | $40.39 | $196K | +6.4% | +14.7% | -24.3% |
| MAZE | SELL · 10b5-1 | 2025-12-29 | 2025-12-31 | $40.57 | $1.8M | +1.3% | +6.7% | -26.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.