William A. Heyburn is CFO at Blade Air Mobility, Inc. (BLDE). They have made 11 open-market trades across 2 companies since 2022, most recently 2026-09-24.
CIK 0001859732
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.
1 open-market purchase totalling $76K since 2025, against 10 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| SRTA | 1,757,850 | $8.0M |
| BLDE | 1,340,845 | $6.3M |
| Total | $14.3M |
Shares reported on the most recent Form 4, priced at the 2026-09-25 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 |
|---|---|---|---|---|---|---|---|---|
| SRTA | SELL | 2026-06-08 | 2026-06-10 | $5.87 | $186K | +2.8% | -5.4% | -1.8% |
| SRTA | BUY | 2025-12-09 | 2025-12-10 | $4.47 | $76K | +12.9% | +22.2% | +0.0% |
| BLDE | SELL · 10b5-1 | 2025-08-04 | 2025-08-05 | $4.94 | $464K | +0.2% | N/A | N/A |
| BLDE | SELL · 10b5-1 | 2025-06-09 | 2025-06-11 | $4.07 | $407K | -4.5% | +3.7% | N/A |
| BLDE | SELL · 10b5-1 | 2025-01-06 | 2025-01-08 | $5.02 | $1.0M | -2.2% | -7.3% | -38.8% |
| BLDE | SELL · 10b5-1 | 2024-12-09 | 2024-12-11 | $5.02 | $394K | -8.2% | -13.2% | -33.9% |
| BLDE | SELL · 10b5-1 | 2024-11-29 | 2024-12-03 | $5.02 | $239K | -7.3% | -2.5% | -26.4% |
| BLDE | SELL | 2024-04-03 | 2024-04-17 | $3.28 | $38K | -9.0% | -1.1% | -4.4% |
| BLDE | SELL | 2024-04-03 | 2024-04-05 | $3.28 | $135K | -2.9% | -3.2% | -8.0% |
| BLDE | SELL | 2024-03-13 | 2024-03-15 | $2.69 | $290K | +7.5% | +44.0% | +13.5% |
| BLDE | SELL | 2023-12-13 | 2023-12-15 | $3.13 | $168K | +12.5% | -12.2% | -18.1% |
| BLDE | SELL | 2023-10-04 | 2023-10-06 | $2.44 | $95K | -7.5% | -6.7% | +35.6% |
| BLDE | SELL | 2023-07-06 | 2023-07-10 | $3.84 | $544K | +1.0% | -4.3% | -41.1% |
| BLDE | SELL | 2023-04-05 | 2023-04-11 | $2.88 | $174K | -8.0% | +3.3% | +33.1% |
| BLDE | SELL | 2023-01-09 | 2023-01-12 | $3.47 | $15K | +24.7% | +24.1% | -20.7% |
| BLDE | SELL | 2022-10-06 | 2022-10-11 | $3.97 | $15K | +5.1% | +23.9% | -4.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.