Michael Brian Bell is CFO at Guardant Health, Inc. (GH). They have made 18 open-market trades across 2 companies since 2017, most recently 2026-10-01.
CIK 0001702824
1 open-market purchase totalling $1K since 2017, against 17 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| GH | 55,182 | $8.8M |
| CDNA | 103,343 | $6.6M |
| Total | $15.4M |
Shares reported on the most recent Form 4, priced at the 2026-10-02 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 |
|---|---|---|---|---|---|---|---|---|
| GH | SELL | 2026-06-05 | 2026-06-08 | $128.62 | $257K | +4.1% | +23.3% | +27.2% |
| GH | SELL | 2026-03-16 | 2026-03-17 | $87.04 | $522K | -4.0% | -2.7% | +47.4% |
| GH | SELL | 2025-12-05 | 2025-12-08 | $103.14 | $16.6M | -6.7% | +5.7% | -12.3% |
| CDNA | SELL | 2020-11-03 | 2020-11-03 | $48.15 | $3.1M | +10.2% | +24.1% | +62.3% |
| CDNA | SELL | 2020-05-06 | 2020-05-08 | $29.00 | $3.3M | +5.3% | +21.8% | +22.9% |
| CDNA | SELL | 2019-06-20 | 2019-06-21 | $38.81 | $1.1M | -4.8% | -13.4% | -36.7% |
| CDNA | SELL | 2019-06-20 | 2019-06-21 | $38.81 | $571K | -4.8% | -13.4% | -36.7% |
| CDNA | SELL | 2019-05-20 | 2019-05-22 | $32.10 | $71K | +2.3% | +16.3% | -24.7% |
| CDNA | SELL | 2019-05-20 | 2019-05-22 | $32.10 | $141K | +2.3% | +16.3% | -24.7% |
| CDNA | SELL | 2019-05-09 | 2019-05-13 | $32.42 | $966K | -1.5% | +17.8% | -22.9% |
| CDNA | SELL | 2019-05-09 | 2019-05-13 | $32.42 | $483K | -1.5% | +17.8% | -22.9% |
| CDNA | SELL | 2019-03-01 | 2019-03-05 | $31.36 | $408K | +13.3% | -11.7% | +4.4% |
| CDNA | SELL | 2019-02-20 | 2019-02-21 | $26.30 | $58K | +12.3% | +32.6% | +18.1% |
| CDNA | SELL | 2019-02-15 | 2019-02-19 | $25.40 | $1.4M | +20.3% | +49.1% | +23.3% |
| CDNA | SELL | 2018-09-13 | 2018-09-13 | $25.06 | $820K | +11.0% | -13.7% | +9.1% |
| CDNA | SELL | 2018-08-14 | 2018-08-14 | $16.84 | $211K | +26.4% | +53.2% | +64.2% |
| CDNA | SELL | 2018-08-14 | 2019-05-13 | $16.84 | $210K | -1.5% | +17.8% | -22.9% |
| CDNA | BUY | 2017-08-15 | 2017-08-16 | $1.82 | $1K | +50.3% | +64.1% | +222.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.