Monitor for actual Form 4 filings to confirm whether the sale was executed. A large insider sale by a director, especially one tied to option exercises, can signal reduced conviction or a need for liquidity; watch for any subsequent insider buying or company announcements that might offset the negative signal.
Price Chart
Executive Summary
Director James R. Gibson II filed a Form 144 notice of intent to sell up to 661,815 shares of Pacific Biosciences of California, Inc. (PACB), with an approximate market value of $1,899,409.05 based on the filing date. The shares are sourced from exercised stock options and vested restricted stock units, indicating a planned liquidation of a significant portion of his holdings.
Key Facts
- Director James R. Gibson II filed Form 144 to sell up to 661,815 shares of PACB common stock.
- Estimated aggregate market value of the proposed sale is $1,899,409.05 as of October 6, 2026.
- Shares to be sold include 500,000 shares from exercised stock options and 161,815 shares from vested restricted stock units.
- The sale is planned for execution on or after October 6, 2026, on the NASDAQ exchange.
- The filing indicates the insider has considered selling a substantial number of shares, which may signal lack of confidence or portfolio diversification.
Financial Impact
Proposed sale of 661,815 shares valued at approximately $1.9 million, representing a notable portion of the insider's holdings relative to the company's market cap.
Risk Factors
- Insider selling may pressure the stock price if the market interprets the sale as a lack of confidence in the company's near-term prospects.
- The sale is not yet executed; the insider may choose not to sell, but the filing itself signals intent and can influence sentiment.
- PACB has a history of dilution and capital needs; insider sales could exacerbate concerns about the company's financial trajectory.
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001950047-26-010078 |
| Document: 0001950047-26-010078-index.html | 0001950047-26-010078 |
| Document: 0001950047-26-010078.txt | 0001950047-26-010078 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 19, 2026 7d ago | Press Release | $1.84 | awaiting T+5 | — | $2.26 (+22.55%) |
Oct 6, 2026 19d ago | 144 | $2.72 $1.99 | ▲ +26.84% | ▲ +25.86% | $2.26 (+17.10%) |
Oct 6, 2026 20d ago | Press Release | $2.70 $2.05 | ▼ −24.07% | ▼ −23.94% | $2.26 (−16.48%) |
Jun 4, 2026 20w ago | 8-K | $1.45 $1.31 | ▼ −9.66% | ▼ −10.22% | $2.26 (+55.52%) |
May 22, 2026 22w ago | DEFA14A | $1.26 $1.58 | ▲ +25.40% | ▲ +24.31% | $2.26 (+78.97%) |
Apr 21, 2026 26w ago | Press Release | $1.73 $1.58 | ▼ −8.67% | ▼ −9.75% | $2.26 (+30.35%) |
Apr 16, 2026 27w ago | Press Release | $1.69 $1.56 | ▼ −7.69% | ▼ −8.25% | $2.26 (+33.43%) |
Mar 5, 2026 33w ago | 8-K | $1.52 $1.27 | ▼ −16.45% | ▼ −14.21% | $2.26 (+48.36%) |
Mar 3, 2026 33w ago | Insider Cluster | $1.52 $1.37 | ▼ −9.87% | ▼ −9.39% | $2.26 (+48.36%) |
Feb 28, 2026 34w ago | Institutional Cluster | $1.62 $1.39 | ▼ −14.20% | ▼ −12.99% | $2.26 (+39.20%) |
US Market Status
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