Pacific Biosciences Of California, Inc. (PACB) Insider Ownership

Historic Insider Ownership Trends

Pacific Biosciences Of California's three largest insider shareholders as of March 23, 2026 are Christian O Henry (See Remarks, 3.58Mn shares), Oene Mark Van (See Remarks, 2.24Mn shares), James R Ii Gibson (See Remarks, 1.33Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Christian O Henry See Remarks 3,581,813 0 04 Mar, 2026
Oene Mark Van See Remarks 2,243,634 0 04 Mar, 2026
James R Ii Gibson See Remarks 1,333,848 0 03 Mar, 2026
Jeff Eidel See Remarks 869,730 0 20 Aug, 2024
Susan G. Kim See Remarks 695,654 0 02 Oct, 2024
Michele Farmer See Remarks 305,948 0 04 Mar, 2026
Peter Fromen See Remarks 190,280 0 04 Mar, 2022
Marshall Mohr 132,821 0 20 Jun, 2024
David W Meline 57,116 0 20 Jun, 2024
Christopher M Smith 54,099 0 03 Feb, 2025
Christopher Gibson 53,913 0 05 Mar, 2026
William W. Ericson 41,616 0 20 Jun, 2024
Hannah Valantine 22,821 0 20 Jun, 2024
Lucy Shapiro 22,821 0 20 Jun, 2024

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
03 Mar, 2026 Christopher Gibson Common Stock A 53,913 $0.00 53,913 D A
03 Mar, 2026 Christopher Gibson Stock Option (right to buy) A 73,087 $0.00 73,087 D A
03 Mar, 2026 Christian O Henry Common Stock D 12,497 $1.51 3,581,813 D S
03 Mar, 2026 Michele Farmer Common Stock D 2,979 $1.51 305,948 D S
03 Mar, 2026 Oene Mark Van Common Stock D 6,504 $1.51 2,243,634 D S
27 Feb, 2026 Oene Mark Van Common Stock A 500,000 $0.00 2,242,638 D A
27 Feb, 2026 James R Ii Gibson Common Stock A 333,848 $0.00 1,333,848 D A
27 Feb, 2026 Christian O Henry Common Stock A 920,810 $0.00 3,594,310 D A
27 Feb, 2026 Michele Farmer Common Stock A 89,835 $0.00 308,927 D A
27 Feb, 2026 Christian O Henry Stock Option (right to buy) A 1,841,621 $0.00 1,841,621 D A
27 Feb, 2026 Oene Mark Van Stock Option (right to buy) A 1,000,000 $0.00 1,000,000 D A
27 Feb, 2026 Michele Farmer Stock Option (right to buy) A 179,670 $0.00 179,670 D A
27 Feb, 2026 James R Ii Gibson Stock Option (right to buy) A 667,696 $0.00 667,696 D A
17 Feb, 2026 Michele Farmer Common Stock D 35,215 $1.58 234,044 D S
17 Feb, 2026 Oene Mark Van Common Stock D 129,790 $1.58 1,797,745 D S
17 Feb, 2026 Christian O Henry Common Stock D 331,793 $1.58 2,814,374 D S
18 Feb, 2026 Oene Mark Van Common Stock D 55,107 $1.63 1,742,638 D S
18 Feb, 2026 Christian O Henry Common Stock D 140,874 $1.63 2,673,500 D S
18 Feb, 2026 Michele Farmer Common Stock D 14,952 $1.63 219,092 D S
18 Aug, 2025 Oene Mark Van Common Stock D 26,836 $1.31 1,920,035 D S