James Brian Windsor is President at Aileron Therapeutics, Inc. (ALRN). They have made 6 open-market trades across 3 companies since 2019, most recently 2026-04-30.
CIK 0001790933
5 open-market purchases totalling $62K since 2019, against 1 sale. Across 5 scored buys the stock is up 15.5% at thirty days, and 14.6 points ahead of the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| RNTX | 27,046 | $16K |
| TFFP | 30,000 | $2K |
| ALRN | 161 | $340 |
| Total | $18K |
Shares reported on the most recent Form 4, priced at the 2026-05-13 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 60% | 60% | — |
| Avg Move | +3.3% | +15.5% | — |
| Alpha | +3.2% | +14.6% | — |
| Scored | 5 | 5 | 4 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RNTX | BUY | 2026-04-30 | 2026-05-13 | $1.00 | $25K | -5.3% | -15.0% | -27.7% |
| ALRN | BUY | 2024-12-05 | 2024-12-09 | $2.24 | $898 | -17.4% | -9.4% | N/A |
| ALRN | BUY | 2023-12-15 | 2023-12-18 | $3.37 | $758 | +2.3% | +36.6% | +81.5% |
| ALRN | BUY | 2023-11-20 | 2023-11-21 | $1.97 | $10K | +29.4% | +61.0% | +152.4% |
| TFFP | SELL | 2020-12-07 | 2020-12-09 | $15.80 | $395K | -1.7% | +15.9% | +1.3% |
| TFFP | BUY | 2019-10-25 | 2019-10-29 | $5.00 | $25K | +7.4% | +4.6% | -0.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.