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

Historic Insider Ownership Trends

Through the 90-day period concluding February 19, 2026, Pacific Biosciences Of California's top three insider stakeholders include Officer Christian O Henry (3.15Mn shares), Officer Oene Mark Van (1.92Mn shares), Officer James R Ii Gibson (1.00Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Christian O Henry Nan 3,146,167 21 Mar, 2025
Oene Mark Van Nan 1,920,035 20 Aug, 2025
James R Ii Gibson Nan 1,000,000 02 Apr, 2025
Jeff Eidel Nan 869,730 20 Aug, 2024
Susan G. Kim Nan 695,654 02 Oct, 2024
Kathy Ordonez 403,037 20 Jun, 2024
Michele Farmer Nan 269,259 21 May, 2025
Peter Fromen Nan 190,280 04 Mar, 2022
John F Milligan 132,821 20 Jun, 2024
Marshall Mohr 132,821 20 Jun, 2024
David W Meline 57,116 20 Jun, 2024
Christopher M Smith 54,099 03 Feb, 2025
William W. Ericson 41,616 20 Jun, 2024
Hannah Valantine 22,821 20 Jun, 2024
Lucy Shapiro 22,821 20 Jun, 2024
Randall S Livingston 22,821 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
18 Aug, 2025 Oene Mark Van Common Stock D 26,836 $1.31 1,920,035 D S
19 May, 2025 Michele Farmer Common Stock D 5,195 $1.00 269,259 D S
19 May, 2025 Michele Farmer - - 269,259 D
31 Mar, 2025 James R Ii Gibson Common Stock A 1,000,000 $0.00 1,000,000 D A
31 Mar, 2025 James R Ii Gibson - - 1,000,000 D
19 Mar, 2025 Christian O Henry Common Stock A 920,810 $0.00 3,146,167 D A
19 Mar, 2025 Oene Mark Van Common Stock A 449,176 $0.00 1,946,871 D A
19 Mar, 2025 Michele Farmer Common Stock A 89,835 $0.00 274,454 D A
03 Mar, 2025 Christian O Henry Common Stock D 12,497 $1.41 2,225,357 D S
03 Mar, 2025 Oene Mark Van Common Stock D 6,486 $1.41 1,497,695 D S
03 Mar, 2025 Michele Farmer Common Stock D 2,973 $1.41 184,619 D S
18 Feb, 2025 Christian O Henry Common Stock D 259,909 $1.88 2,237,854 D S
18 Feb, 2025 Christian O Henry - - 2,237,854 D
18 Feb, 2025 Oene Mark Van Common Stock D 100,773 $1.88 1,496,681 D S
18 Feb, 2025 Michele Farmer Common Stock D 24,349 $1.88 187,592 D S
30 Jan, 2025 Christopher M Smith - - 54,099 D
30 Jan, 2025 Christopher M Smith Common Stock A 54,099 $0.00 54,099 D A
10 Jan, 2025 Oene Mark Van Common Stock D 34,405 $2.03 1,597,454 D S
10 Jan, 2025 Oene Mark Van - - 1,597,454 D
30 Sep, 2024 Susan G. Kim - - 695,654 D