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Pacific Biosciences Of California, Inc. (PACB)
NASDAQ: PACB · Real-Time Price · USD
Healthcare · Medical Devices
2.27+0.16 (+7.43%)
Insider Score
––Not scored
PACB Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
PACB Stock Insider Trading Activity
PACB stock’s insider trading shows 2 sales on the open market for an estimated $2.09M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Gibson James R II Other | Option exercise | 500,000 | $1.18 | $590.00K | 40.1% | 1,745,663 | Oct 6, 2026 | — | Form 4 |
| Gibson James R II Other | Sell | 661,815 | $3.11 | $2.06M | 37.9% | 1,083,848 | Oct 6, 2026 | — | Form 4 |
| Van Oene Mark Other | Sell | 26,911 | $1.13 | $30.41K | 1.0% | 2,705,853 | Aug 17, 2026 | — | Form 4 |
| Van Oene Mark Other | Award | 489,130 | — | — | 21.8% | 2,732,764 | Aug 10, 2026 | — | Form 4 |
| Gibson Christopher Director | Award | 57,473 | — | — | 107% | 111,386 | Apr 8, 2026 | — | Form 4 |
| Gibson James R II Other | Sell | 88,185 | $1.37 | $120.81K | 6.6% | 1,245,663 | Apr 1, 2026 | — | Form 4 |
| Gibson Christopher Director | Award | 53,913 | — | — | New | 53,913 | Mar 3, 2026 | — | Form 4 |
| Van Oene Mark Other | Sell | 6,504 | $1.51 | $9.82K | 0.3% | 2,243,634 | Mar 3, 2026 | — | Form 4 |
| Farmer Michele Other | Sell | 2,979 | $1.51 | $4.50K | 1.0% | 305,948 | Mar 3, 2026 | — | Form 4 |
| HENRY CHRISTIAN O Other | Sell | 12,497 | $1.51 | $18.87K | 0.3% | 3,581,813 | Mar 3, 2026 | — | Form 4 |
| Farmer Michele Other | Award | 89,835 | — | — | 41.0% | 308,927 | Feb 27, 2026 | — | Form 4 |
| Gibson James R II Other | Award | 333,848 | — | — | 33.4% | 1,333,848 | Feb 27, 2026 | — | Form 4 |
| HENRY CHRISTIAN O Other | Award | 920,810 | — | — | 34.4% | 3,594,310 | Feb 27, 2026 | — | Form 4 |
| Van Oene Mark Other | Award | 500,000 | — | — | 28.7% | 2,242,638 | Feb 27, 2026 | — | Form 4 |
| Van Oene Mark Other | Sell | 55,107 | $1.63 | $89.82K | 3.1% | 1,742,638 | Feb 18, 2026 | — | Form 4 |
| HENRY CHRISTIAN O Other | Sell | 140,874 | $1.63 | $229.62K | 5.0% | 2,673,500 | Feb 18, 2026 | — | Form 4 |
| Farmer Michele Other | Sell | 14,952 | $1.63 | $24.37K | 6.4% | 219,092 | Feb 18, 2026 | — | Form 4 |
| Farmer Michele Other | Sell | 35,215 | $1.58 | $55.64K | 13.1% | 234,044 | Feb 17, 2026 | — | Form 4 |
| Van Oene Mark Other | Sell | 129,790 | $1.58 | $205.07K | 6.7% | 1,797,745 | Feb 17, 2026 | — | Form 4 |
| HENRY CHRISTIAN O Other | Sell | 331,793 | $1.58 | $524.23K | 10.5% | 2,814,374 | Feb 17, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
- Option exercise (M) — Exercise or conversion of an exempt derivative
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.