David R. Epstein is Director at Axcella Health Inc. (AXLA). They have made 19 open-market trades across 4 companies since 2019, most recently 2026-09-01.
CIK 0001445826
16 open-market purchases totalling $1.0M since 2019, against 3 sales. Across 16 scored buys the stock is down 3.1% at ninety days, and 6.8 points behind the S&P over the same stretch.
16 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 44% | 31% | 38% |
| Avg Move | -0.8% | -0.5% | -3.1% |
| Alpha | -0.8% | -0.7% | -6.8% |
| Scored | 16 | 16 | 16 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TEM | SELL · 10b5-1 | 2026-09-01 | 2026-09-03 | $65.55 | $16K | +7.8% | +28.9% | — |
| TEM | SELL · 10b5-1 | 2026-08-03 | 2026-08-05 | $43.40 | $16K | +15.1% | +44.0% | — |
| TEM | SELL · 10b5-1 | 2026-06-01 | 2026-06-03 | $49.40 | $12K | +10.9% | +28.7% | +31.9% |
| TEM | SELL · 10b5-1 | 2026-03-02 | 2026-03-04 | $50.69 | $13K | +0.2% | -6.8% | -2.2% |
| TEM | SELL · 10b5-1 | 2026-02-02 | 2026-02-04 | $59.41 | $22K | -3.9% | -4.5% | -1.3% |
| TEM | SELL · 10b5-1 | 2025-12-01 | 2025-12-03 | $75.55 | $19K | -8.3% | -16.7% | -31.4% |
| TEM | SELL · 10b5-1 | 2025-11-03 | 2025-11-05 | $90.00 | $33K | -17.3% | -4.5% | -30.3% |
| TEM | SELL · 10b5-1 | 2025-09-02 | 2025-09-04 | $73.64 | $18K | +9.4% | +17.0% | -5.8% |
| TEM | SELL · 10b5-1 | 2025-08-01 | 2025-08-05 | $55.16 | $20K | +28.0% | +35.6% | +54.0% |
| TEM | SELL · 10b5-1 | 2025-06-02 | 2025-06-04 | $55.20 | $14K | +15.9% | -6.6% | +26.2% |
| TEM | SELL · 10b5-1 | 2025-05-01 | 2025-05-05 | $53.50 | $20K | +21.4% | +21.8% | +11.6% |
| TEM | SELL · 10b5-1 | 2025-03-17 | 2025-03-19 | $46.83 | $46K | +1.3% | -13.9% | +47.3% |
| TEM | SELL · 10b5-1 | 2025-03-03 | 2025-03-05 | $57.52 | $14K | -1.2% | -15.6% | +22.8% |
| TEM | SELL · 10b5-1 | 2025-02-03 | 2025-02-05 | $53.31 | $20K | +14.8% | -31.2% | -26.9% |
| TEM | SELL · 10b5-1 | 2024-12-11 | 2024-12-13 | $41.81 | $26K | -15.8% | -22.8% | +0.7% |
| SGEN | SELL | 2023-11-10 | 2023-11-13 | $213.01 | $4.5M | +0.2% | +6.9% | N/A |
| EVLO | BUY | 2022-05-27 | 2022-05-31 | $1.46 | $25K | -11.0% | -7.0% | -7.9% |
| RUBY | BUY | 2022-04-21 | 2022-04-22 | $1.44 | $43K | +20.3% | -26.8% | -40.0% |
| AXLA | BUY | 2022-03-16 | 2022-03-18 | $1.91 | $50K | -6.3% | -33.0% | -19.1% |
| RUBY | SELL | 2021-02-11 | 2021-02-16 | $14.93 | $797K | -17.8% | +92.1% | +105.9% |
| RUBY | SELL | 2021-02-08 | 2021-02-10 | $14.87 | $2.9M | -20.9% | +14.6% | +75.9% |
| EVLO | BUY | 2020-12-11 | 2020-12-14 | $6.66 | $51K | +17.0% | +46.5% | +47.7% |
| EVLO | BUY | 2020-08-28 | 2020-09-01 | $4.44 | $44K | +15.4% | +22.5% | +14.3% |
| AXLA | BUY | 2020-05-18 | 2020-05-20 | $4.75 | $238K | +30.1% | +27.3% | +25.8% |
| RUBY | BUY | 2020-03-17 | 2020-03-19 | $3.76 | $19K | +4.5% | +25.8% | +43.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.