David Edward Johnson is 10% Owner at STANDARD BIOTOOLS INC. (LAB). They have made 7 open-market trades across 4 companies since 2022, most recently 2026-06-30.
7 open-market purchases totalling $16.7M since 2022, never a sale. Across 7 scored buys the stock is down 18.2% at ninety days, and 16.9 points behind the S&P over the same stretch.
7 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 14% | 14% | 29% |
| Avg Move | -7.0% | -16.6% | -18.2% |
| Alpha | -5.3% | -13.4% | -16.9% |
| Scored | 7 | 7 | 7 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| EXEL | BUY | 2024-05-28 | 2024-05-30 | $20.55 | $8.7M | +3.1% | +4.1% | +20.8% |
| ALIM | BUY | 2023-09-14 | 2023-09-15 | $3.39 | $2.0M | -6.2% | -11.4% | +11.4% |
| LQDA | BUY | 2022-09-06 | 2022-09-07 | $5.62 | $1.4M | -4.8% | -9.3% | -9.7% |
| LAB | BUY | 2022-08-03 | 2022-08-05 | $1.75 | $1.1M | -6.7% | -26.8% | -41.2% |
| LAB | BUY | 2022-07-29 | 2022-08-02 | $1.55 | $1.6M | -4.3% | -22.3% | -35.9% |
| LAB | BUY | 2022-06-02 | 2022-06-06 | $1.95 | $879K | -3.7% | -10.6% | -24.9% |
| LAB | BUY | 2022-04-28 | 2022-05-02 | $2.69 | $1.1M | -26.4% | -39.6% | -47.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.