John W. Childs is Director at Biohaven Pharmaceutical Holding Co Ltd. (BHVN). They have made 30 open-market trades across 4 companies since 2012, most recently 2026-08-12.
CIK 0001027035
25 open-market purchases totalling $151.9M since 2012, against 5 sales. Across 24 scored buys the stock is up 26.7% at ninety days, and 22.1 points ahead of the S&P over the same stretch.
24 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| MFRM | 12,713,589 | $813.9M |
| BHVN | 2,323,971 | $25.1M |
| MANE | 194,117 | $21.2M |
| JWCA | 196,387 | — |
| Total | $860.2M |
Shares reported on the most recent Form 4, priced at the 2026-08-14 close. 1 holding could not be priced and is excluded from the total.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 54% | 58% | 75% |
| Avg Move | +0.9% | +4.2% | +26.7% |
| Alpha | +0.7% | +3.1% | +22.1% |
| Scored | 24 | 24 | 24 |
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 80% | 20% | — |
| Avg Move | -0.7% | +6.5% | — |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MANE | SELL | 2026-08-12 | 2026-08-14 | $107.12 | $10.7M | -5.4% | -7.0% | — |
| MANE | BUY | 2026-02-05 | 2026-02-05 | $17.00 | $5.0M | +35.4% | +38.7% | +197.4% |
| BHVN | BUY | 2025-11-13 | 2025-11-17 | $7.50 | $50.0M | +21.6% | +31.8% | +39.2% |
| BHVN | BUY | 2025-03-04 | 2026-03-09 | $30.43 | $864K | -12.5% | -8.4% | +8.6% |
| BHVN | BUY | 2025-03-04 | 2025-03-05 | $30.44 | $892K | -1.0% | -37.9% | -47.3% |
| BHVN | BUY | 2024-12-30 | 2024-12-31 | $35.94 | $2.1M | -5.8% | +3.3% | -36.4% |
| BHVN | BUY | 2024-10-02 | 2024-10-03 | $47.50 | $1000K | +9.1% | +7.7% | -19.8% |
| BHVN | BUY | 2024-07-18 | 2024-07-19 | $35.67 | $1.0M | +9.1% | +10.2% | +43.2% |
| BHVN | BUY | 2024-05-30 | 2024-05-31 | $35.58 | $996K | -5.4% | -1.0% | +11.6% |
| BHVN | BUY | 2024-05-13 | 2024-05-14 | $35.17 | $1.0M | -5.4% | -13.9% | -4.7% |
| BHVN | BUY | 2024-04-22 | 2024-04-23 | $41.00 | $3.0M | +1.2% | -9.2% | -9.3% |
| BHVN | BUY | 2023-10-05 | 2023-10-10 | $22.00 | $10.0M | +3.4% | +4.3% | +77.7% |
| BHVN | BUY | 2023-08-30 | 2023-08-31 | $18.44 | $1.8M | +3.3% | +30.7% | +74.3% |
| BHVN | BUY | 2023-08-04 | 2023-08-07 | $19.78 | $2.0M | -1.1% | -5.3% | +48.5% |
| BHVN | BUY | 2022-10-25 | 2023-03-22 | $10.50 | $52.9M | +4.1% | +7.4% | +78.4% |
| BHVN | BUY | 2022-10-05 | 2022-10-05 | $9.06 | $2.8M | -18.6% | +21.7% | +6.2% |
| BHVN | BUY | 2021-11-10 | 2021-11-10 | $122.82 | $1.1M | -10.2% | -18.7% | +6.7% |
| BHVN | BUY | 2021-03-17 | 2021-03-17 | $76.00 | $1000K | -16.7% | -3.3% | +21.2% |
| BHVN | BUY | 2021-03-02 | 2021-03-03 | $85.14 | $851K | +1.1% | -17.8% | +5.2% |
| BHVN | BUY | 2020-11-23 | 2020-11-23 | $89.55 | $448K | -2.9% | +0.3% | -13.6% |
| BHVN | BUY | 2020-09-21 | 2020-09-22 | $59.25 | $394K | +2.9% | +26.1% | +48.3% |
| BHVN | BUY | 2020-09-11 | 2020-09-14 | $59.00 | $394K | -1.5% | +21.7% | +37.6% |
| BHVN | BUY | 2020-08-11 | 2020-08-12 | $61.60 | $2.9M | +0.2% | -2.4% | +42.9% |
| BHVN | SELL | 2020-04-06 | 2020-04-08 | $31.62 | $22.1M | +18.4% | +36.0% | +105.6% |
| BHVN | BUY | 2019-06-26 | 2019-06-26 | $40.37 | $404K | +1.2% | +4.5% | +5.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Scored | 5 | 5 | 4 |