Pacific Biosciences Of California's top three insider shareholders as of September 29, 2026 are Christian O Henry (President Ceo, 3.58Mn shares), Oene Mark Van (Chief Operating Officer, 2.71Mn shares), James R Ii Gibson (Officer, 1.25Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Christian O Henry | President Ceo | 4,254,171 | 0 | 4,254,171 | 37.8% | 04 Mar, 2026 |
| 2 | Oene Mark Van | Chief Operating Officer | 2,705,853 | 0 | 2,705,853 | 24.0% | 18 Aug, 2026 |
| 3 | James R Ii Gibson | Officer | 1,245,663 | 0 | 1,245,663 | 11.1% | 03 Apr, 2026 |
| 4 | Jeff Eidel | Officer | 869,730 | 0 | 869,730 | 7.7% | 20 Aug, 2024 |
| 5 | Susan G. Kim | Chief Financial Officer | 695,654 | 0 | 695,654 | 6.2% | 02 Oct, 2024 |
| 6 | Kathy Ordonez | Chief Commercial Officer | 403,037 | 0 | 403,037 | 3.6% | 20 Jun, 2024 |
| 7 | Michele Farmer | Chief Accounting Officer | 305,948 | 0 | 305,948 | 2.7% | 04 Mar, 2026 |
| 8 | Peter Fromen | Chief Commercial Officer | 190,280 | 0 | 190,280 | 1.7% | 04 Mar, 2022 |
| 9 | John F Milligan | Director | 132,821 | 0 | 132,821 | 1.2% | 20 Jun, 2024 |
| 10 | Marshall Mohr | Director | 132,821 | 0 | 132,821 | 1.2% | 20 Jun, 2024 |
| 11 | Christopher Gibson | Director | 111,386 | 0 | 111,386 | 1.0% | 10 Apr, 2026 |
| 12 | David W Meline | Director | 57,116 | 0 | 57,116 | 0.5% | 20 Jun, 2024 |
| 13 | Christopher M Smith | Director | 54,099 | 0 | 54,099 | 0.5% | 03 Feb, 2025 |
| 14 | William W. Ericson | Director | 41,616 | 0 | 41,616 | 0.4% | 20 Jun, 2024 |
| 15 | Hannah Valantine | Director | 22,821 | 0 | 22,821 | 0.2% | 20 Jun, 2024 |
| 16 | Lucy Shapiro | Director | 22,821 | 0 | 22,821 | 0.2% | 20 Jun, 2024 |
| 17 | Randall S Livingston | Director | 22,821 | 0 | 22,821 | 0.2% | 20 Jun, 2024 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 17 Aug, 2026 | Oene Mark Van | Officer | Disposed S | 26,911 | $1.13 | $30.41K | 2,705,853 | Direct |
| 10 Aug, 2026 | Oene Mark Van | Officer | Acquired A | 489,130 | $0.00 | $0 | 2,732,764 | Direct |
| 10 Aug, 2026 | Oene Mark Van | Officer | Acquired A | 1,967,888 | $0.00 | $0 | 1,967,888 | Direct |
| 03 Jun, 2026 | Christopher Gibson | Director | Acquired A | 74,497 | $0.00 | $0 | 74,497 | Direct |
| 03 Jun, 2026 | Kathy Ordonez | Director | Acquired A | 223,492 | $0.00 | $0 | 223,492 | Direct |
| 03 Jun, 2026 | Hannah Valantine | Director | Acquired A | 223,492 | $0.00 | $0 | 223,492 | Direct |
| 03 Jun, 2026 | Christopher M Smith | Director | Acquired A | 223,492 | $0.00 | $0 | 223,492 | Direct |
| 03 Jun, 2026 | John F Milligan | Director | Acquired A | 223,492 | $0.00 | $0 | 223,492 | Direct |
| 03 Jun, 2026 | Marshall Mohr | Director | Acquired A | 223,492 | $0.00 | $0 | 223,492 | Direct |
| 03 Jun, 2026 | William W. Ericson | Director | Acquired A | 223,492 | $0.00 | $0 | 223,492 | Direct |
| 03 Jun, 2026 | Randall S Livingston | Director | Acquired A | 223,492 | $0.00 | $0 | 223,492 | Direct |
| 08 Apr, 2026 | Christopher Gibson | Director | Acquired A | 57,473 | $0.00 | $0 | 111,386 | Direct |
| 08 Apr, 2026 | Christopher Gibson | Director | Acquired A | 77,842 | $0.00 | $0 | 77,842 | Direct |
| 01 Apr, 2026 | James R Ii Gibson | Officer | Disposed S | 88,185 | $1.37 | $120.81K | 1,245,663 | Direct |
| 03 Mar, 2026 | Christopher Gibson | Director | Acquired A | 53,913 | $0.00 | $0 | 53,913 | Direct |
| 03 Mar, 2026 | Christopher Gibson | Director | Acquired A | 73,087 | $0.00 | $0 | 73,087 | Direct |
| 03 Mar, 2026 | Oene Mark Van | Officer | Disposed S | 6,504 | $1.51 | $9.85K | 2,243,634 | Direct |
| 03 Mar, 2026 | Michele Farmer | Officer | Disposed S | 2,979 | $1.51 | $4.51K | 305,948 | Direct |
| 03 Mar, 2026 | Christian O Henry | Officer | Disposed S | 12,497 | $1.51 | $18.92K | 3,581,813 | Direct |
| 27 Feb, 2026 | Christian O Henry | Officer | Acquired A | 920,810 | $0.00 | $0 | 3,594,310 | Direct |