PACIFIC BIOSCIENCES OF CALIFORNIA (PACB) — insider trading
Health Care · NASDAQ
PACIFIC BIOSCIENCES OF CALIFORNIA (PACB) has 19 reported SEC Form 4 insider transactions in our data, including 3 open-market sales among the most recent 19 (latest 2026-10-06).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-10-06 | Gibson James R II | Officer (See Remarks) | Option exercise / conversion (derivative) | 500,000 | — | $0 | Form 4 |
| 2026-10-06 | Gibson James R II | Officer (See Remarks) | Open-market sale | 661,815 | $3.11 | $2.06M | Form 4 |
| 2026-10-06 | Gibson James R II | Officer (See Remarks) | Option exercise / conversion | 500,000 | $1.18 | $590.0K | Form 4 |
| 2026-08-17 | Van Oene Mark | Officer (See Remarks) | Open-market sale | 26,911 | $1.13 | $30.4K | Form 4 |
| 2026-08-10 | Van Oene Mark | Officer (See Remarks) | Grant / award / vesting (derivative) | 1,967,888 | — | $0 | Form 4 |
| 2026-08-10 | Van Oene Mark | Officer (See Remarks) | Grant / award / vesting | 489,130 | — | $0 | Form 4 |
| 2026-06-03 | ORDONEZ KATHY | Director | Grant / award / vesting (derivative) | 223,492 | — | $0 | Form 4 |
| 2026-06-03 | MILLIGAN JOHN F | Director | Grant / award / vesting (derivative) | 223,492 | — | $0 | Form 4 |
| 2026-06-03 | Ericson William W. | Director | Grant / award / vesting (derivative) | 223,492 | — | $0 | Form 4 |
| 2026-06-03 | LIVINGSTON RANDALL S | Director | Grant / award / vesting (derivative) | 223,492 | — | $0 | Form 4 |
| 2026-06-03 | Valantine Hannah | Director | Grant / award / vesting (derivative) | 223,492 | — | $0 | Form 4 |
| 2026-06-03 | Smith Christopher M | Director | Grant / award / vesting (derivative) | 223,492 | — | $0 | Form 4 |
| 2026-06-03 | Gibson Christopher | Director | Grant / award / vesting (derivative) | 74,497 | — | $0 | Form 4 |
| 2026-06-03 | MOHR MARSHALL | Director | Grant / award / vesting (derivative) | 223,492 | — | $0 | Form 4 |
| 2026-04-08 | Gibson Christopher | Director | Grant / award / vesting (derivative) | 77,842 | — | $0 | Form 4 |
| 2026-04-08 | Gibson Christopher | Director | Grant / award / vesting | 57,473 | — | $0 | Form 4 |
| 2026-04-01 | Gibson James R II | Officer (See Remarks) | Open-market sale | 88,185 | $1.37 | $120.8K | Form 4 |
| 2026-03-03 | Gibson Christopher | Director | Grant / award / vesting (derivative) | 73,087 | — | $0 | Form 4 |
| 2026-03-03 | Gibson Christopher | Director | Grant / award / vesting | 53,913 | — | $0 | Form 4 |
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Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: PACIFIC BIOSCIENCES OF CALIFORNIA (PACB).
Last updated 2026-10-06 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.