Pacific Biosciences of California, Inc.
Pacific Biosciences of California, Inc. (PACB) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · PACB · as of Jun 8, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
12
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
Pacific Biosciences of California, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
PACB insider buying and selling by quarter
PACB insider selling · PACB insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · PACB ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
PACB executive sell shares · PACB board member insider trading · PACB insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Apr 8, 2026 | Gibson Christopher Director | Award | 57,473 | — | Form 4 |
| Apr 1, 2026 | Gibson James R II See Remarks | Sale | 88,185 | $121K | Form 4 |
| Mar 3, 2026 | Gibson Christopher Director | Award | 53,913 | — | Form 4 |
| Mar 3, 2026 | HENRY CHRISTIAN O See Remarks | Sale | 12,497 | $19K | Form 4 |
| Mar 3, 2026 | Van Oene Mark See Remarks | Sale | 6,504 | $10K | Form 4 |
| Mar 3, 2026 | Farmer Michele See Remarks | Sale | 2,979 | $5K | Form 4 |
| Feb 27, 2026 | Farmer Michele See Remarks | Award | 89,835 | — | Form 4 |
| Feb 27, 2026 | Gibson James R II See Remarks | Award | 333,848 | — | Form 4 |
| Feb 27, 2026 | Van Oene Mark See Remarks | Award | 500,000 | — | Form 4 |
| Feb 27, 2026 | HENRY CHRISTIAN O See Remarks | Award | 920,810 | — | Form 4 |
| Feb 17, 2026 | Van Oene Mark See Remarks | Sale | 129,790 | $205K | Form 4 |
| Feb 18, 2026 | Van Oene Mark See Remarks | Sale | 55,107 | $90K | Form 4 |
| Feb 17, 2026 | HENRY CHRISTIAN O See Remarks | Sale | 331,793 | $523K | Form 4 |
| Feb 18, 2026 | HENRY CHRISTIAN O See Remarks | Sale | 140,874 | $229K | Form 4 |
| Feb 17, 2026 | Farmer Michele See Remarks | Sale | 35,215 | $55K | Form 4 |
| Feb 18, 2026 | Farmer Michele See Remarks | Sale | 14,952 | $24K | Form 4 |
| Aug 18, 2025 | Van Oene Mark See Remarks | Sale | 26,836 | $35K | Form 4 |
| May 19, 2025 | Farmer Michele See Remarks | Sale | 5,195 | $5K | Form 4 |
| Mar 31, 2025 | Gibson James R II See Remarks | Award | 1,000,000 | — | Form 4 |
| Mar 19, 2025 | Farmer Michele See Remarks | Award | 89,835 | — | Form 4 |
| Mar 19, 2025 | Van Oene Mark See Remarks | Award | 449,176 | — | Form 4 |
| Mar 19, 2025 | HENRY CHRISTIAN O See Remarks | Award | 920,810 | — | Form 4 |
| Mar 3, 2025 | HENRY CHRISTIAN O See Remarks | Sale | 12,497 | $18K | Form 4 |
| Mar 3, 2025 | Van Oene Mark See Remarks | Sale | 6,486 | $9K | Form 4 |
| Mar 3, 2025 | Farmer Michele See Remarks | Sale | 2,973 | $4K | Form 4 |
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About PACB insider trading
PACB insider trades
Pacific Biosciences of California, Inc. (PACB) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Van Oene Mark (See Remarks), HENRY CHRISTIAN O (See Remarks), Farmer Michele (See Remarks). Over the past 12 months, 5 insiders have filed transactions with the SEC. PACB insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Pacific Biosciences of California, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
PACB insider trading · 5 questionsThe insiders of Pacific Biosciences of California, Inc. (PACB) include executives and directors such as Van Oene Mark (See Remarks), HENRY CHRISTIAN O (See Remarks), Farmer Michele (See Remarks), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026