Michele Farmer files SEC Form 4 disclosures for PACIFIC BIOSCIENCES OF CALIFORNIA, INC.. They have made 11 open-market trades across 1 company since 2022, most recently 2026-03-03.
CIK 0001860876
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 11 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PACB | 305,948 | $785K |
Shares reported on the most recent Form 4, priced at the 2026-03-04 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 |
|---|---|---|---|---|---|---|---|---|
| PACB | SELL | 2026-03-03 | 2026-03-04 | $1.51 | $4K | -12.0% | -8.1% | +2.6% |
| PACB | SELL | 2026-02-17 | 2026-02-19 | $1.59 | $80K | -8.2% | -16.0% | -27.8% |
| PACB | SELL | 2025-05-19 | 2025-05-21 | $1.00 | $5K | +8.2% | +30.9% | +34.0% |
| PACB | SELL | 2025-03-03 | 2025-03-05 | $1.41 | $4K | -6.8% | -7.5% | -21.1% |
| PACB | SELL | 2025-02-18 | 2025-02-19 | $1.88 | $46K | -24.9% | -25.7% | -41.7% |
| PACB | SELL | 2024-05-20 | 2024-05-22 | $2.03 | $11K | -3.2% | -21.0% | -19.9% |
| PACB | SELL | 2024-03-04 | 2024-03-06 | $4.87 | $14K | -16.0% | -23.3% | -58.8% |
| PACB | SELL | 2024-02-16 | 2024-02-21 | $5.96 | $45K | -4.7% | -28.1% | -64.3% |
| PACB | SELL | 2023-05-18 | 2023-05-19 | $12.59 | $130K | +1.5% | +3.5% | -17.1% |
| PACB | SELL | 2023-03-03 | 2023-03-06 | $9.49 | $30K | -3.1% | +20.2% | +48.9% |
| PACB | SELL | 2022-05-18 | 2022-05-20 | $5.55 | $20K | +0.2% | -17.5% | +28.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.