PACIFIC BIOSCIENCES OF CALIFORNIA, INC. (PACB)

Latest Insider Confidence Score

2026Q1

49.7
Bearish

Company insider confidence (by quarter)

2010Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Gibson James R II 2,000,000 Apr 2, 2025
Van Oene Mark Officer 1,920,035 Aug 20, 2025
Henry Christian O Officer 1,841,621 Mar 21, 2025
Turner Stephen W VP & Chief Technology Officer 1,093,063 Jul 11, 2011
Barnes Susan K CFO 874,812 Feb 25, 2020

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 3, 2026 Mar 5, 2026 Gibson Christopher Director Neutral 90.0 +53,913 100.00% -
Mar 5, 2026 Gibson Christopher Director Neutral 52.5 - 0.00% -
Mar 3, 2026 Mar 4, 2026 HENRY CHRISTIAN O Officer Sell 51.3 -12,497 -0.35% $18.9K
Mar 3, 2026 Mar 4, 2026 Van Oene Mark Officer Sell 52.5 -6,504 -0.29% $9.8K
Mar 3, 2026 Mar 4, 2026 Farmer Michele Officer Sell 50.0 -2,979 -0.96% $4.5K
Feb 27, 2026 Mar 3, 2026 Farmer Michele Officer Neutral 90.0 +89,835 41.00% -
Feb 27, 2026 Mar 3, 2026 Gibson James R II Officer Neutral 90.0 +333,848 33.38% -
Feb 27, 2026 Mar 3, 2026 Van Oene Mark Officer Neutral 90.0 +500,000 28.69% -
Feb 27, 2026 Mar 3, 2026 HENRY CHRISTIAN O Officer Neutral 90.0 +920,810 34.44% -
Feb 17, 2026 Feb 19, 2026 Van Oene Mark Officer Sell 40.0 -184,897 -9.59% $294.3K
Feb 17, 2026 Feb 19, 2026 HENRY CHRISTIAN O Officer Sell 40.0 -472,667 -15.02% $752.4K
Feb 17, 2026 Feb 19, 2026 Farmer Michele Officer Sell 42.5 -50,167 -18.63% $79.9K
Aug 18, 2025 Aug 20, 2025 Van Oene Mark Officer Sell 46.3 -26,836 -1.38% $35.2K
Jun 4, 2025 Jun 6, 2025 MOHR MARSHALL Director Neutral 52.5 - 0.00% -
Jun 4, 2025 Jun 6, 2025 LIVINGSTON RANDALL S Director Neutral 52.5 - 0.00% -
Jun 4, 2025 Jun 6, 2025 ORDONEZ KATHY Director Neutral 52.5 - 0.00% -
Jun 4, 2025 Jun 6, 2025 Shapiro Lucy Director Neutral 52.5 - 0.00% -
Jun 4, 2025 Jun 6, 2025 Ericson William W. Director Neutral 52.5 - 0.00% -
Jun 4, 2025 Jun 6, 2025 MILLIGAN JOHN F Director Neutral 52.5 - 0.00% -
Jun 4, 2025 Jun 6, 2025 Valantine Hannah Director Neutral 52.5 - 0.00% -
Jun 4, 2025 Jun 6, 2025 Smith Christopher M Director Neutral 52.5 - 0.00% -
May 19, 2025 May 21, 2025 Farmer Michele Officer Sell 47.5 -5,195 -1.89% $5.2K
Mar 31, 2025 Apr 2, 2025 Gibson James R II Officer Neutral 90.0 +1,000,000 100.00% -
Apr 2, 2025 Gibson James R II Officer Neutral 52.5 - 0.00% -
Mar 19, 2025 Mar 21, 2025 Farmer Michele Officer Neutral 90.0 +89,835 48.66% -
Mar 19, 2025 Mar 21, 2025 Van Oene Mark Officer Neutral 90.0 +449,176 29.99% -
Mar 19, 2025 Mar 21, 2025 HENRY CHRISTIAN O Officer Neutral 90.0 +920,810 41.38% -
Mar 3, 2025 Mar 5, 2025 HENRY CHRISTIAN O Officer Sell 48.8 -12,497 -0.56% $17.6K
Mar 3, 2025 Mar 5, 2025 Van Oene Mark Officer Sell 52.5 -6,486 -0.43% $9.1K
Mar 3, 2025 Mar 5, 2025 Farmer Michele Officer Sell 47.5 -2,973 -1.58% $4.2K
Feb 18, 2025 Feb 19, 2025 Farmer Michele Officer Sell 46.3 -24,349 -11.49% $45.7K
Feb 18, 2025 Feb 19, 2025 Van Oene Mark Officer Sell 42.5 -100,773 -6.31% $189.3K
Feb 18, 2025 Feb 19, 2025 HENRY CHRISTIAN O Officer Sell 40.0 -259,909 -10.41% $488.1K
Jan 30, 2025 Feb 3, 2025 Smith Christopher M Director Neutral 90.0 +54,099 100.00% -
Feb 3, 2025 Smith Christopher M Director Neutral 52.5 - 0.00% -
Jan 10, 2025 Jan 10, 2025 Van Oene Mark Officer Sell 42.5 -34,405 -2.11% $70K
Sep 30, 2024 Oct 2, 2024 Kim Susan G. Officer Sell 46.3 -19,782 -2.77% $34.1K
Sep 16, 2024 Sep 17, 2024 HENRY CHRISTIAN O Officer Sell 42.5 -98,907 -3.81% $172.7K
Aug 19, 2024 Aug 20, 2024 Eidel Jeff Officer Sell 46.3 -26,760 -2.98% $42.6K
Aug 16, 2024 Aug 20, 2024 Van Oene Mark Officer Sell 42.5 -38,011 -2.28% $63.2K
Jun 18, 2024 Jun 20, 2024 Valantine Hannah Director Neutral 90.0 +22,821 100.00% -
Jun 18, 2024 Jun 20, 2024 Shapiro Lucy Director Neutral 90.0 +22,821 100.00% -
Jun 18, 2024 Jun 20, 2024 ORDONEZ KATHY Director Neutral 85.0 +22,821 6.00% -
Jun 18, 2024 Jun 20, 2024 MOHR MARSHALL Director Neutral 90.0 +22,821 20.75% -
Jun 18, 2024 Jun 20, 2024 MILLIGAN JOHN F Director Neutral 90.0 +22,821 20.75% -
Jun 18, 2024 Jun 20, 2024 Meline David W Director Neutral 90.0 +17,116 42.79% -
Jun 18, 2024 Jun 20, 2024 LIVINGSTON RANDALL S Director Neutral 90.0 +22,821 100.00% -
Jun 18, 2024 Jun 20, 2024 Ericson William W. Director Neutral 90.0 +22,821 121.42% -
May 20, 2024 May 22, 2024 Farmer Michele Officer Sell 46.3 -5,275 -2.43% $10.7K
Mar 15, 2024 Mar 19, 2024 ORDONEZ KATHY Director Neutral 52.5 - 0.00% -
Mar 6, 2024 Mar 6, 2024 Meline David W Director Buy 95.0 +40,000 100.00% $176.2K
Mar 4, 2024 Mar 6, 2024 Farmer Michele Officer Sell 46.3 -2,968 -1.35% $14.5K
Mar 4, 2024 Mar 6, 2024 Van Oene Mark Officer Sell 48.8 -9,186 -0.55% $44.7K
Mar 4, 2024 Mar 6, 2024 Kim Susan G. Officer Sell 48.8 -5,275 -0.74% $25.7K
Mar 4, 2024 Mar 6, 2024 HENRY CHRISTIAN O Officer Sell 45.0 -14,177 -0.54% $69.1K
Mar 1, 2024 Mar 5, 2024 MOHR MARSHALL Director Neutral 52.5 - 0.00% -
Feb 22, 2024 Feb 26, 2024 HENRY CHRISTIAN O Officer Neutral 90.0 +1,605,769 159.77% -
Feb 22, 2024 Feb 26, 2024 Van Oene Mark Officer Neutral 90.0 +798,076 91.04% -
Feb 22, 2024 Feb 26, 2024 Kim Susan G. Officer Neutral 90.0 +432,692 153.03% -
Feb 22, 2024 Feb 26, 2024 Eidel Jeff Officer Neutral 90.0 +461,538 106.83% -
Feb 22, 2024 Feb 26, 2024 Farmer Michele Officer Neutral 90.0 +115,384 114.06% -
Feb 16, 2024 Feb 21, 2024 Van Oene Mark Officer Sell 42.5 -33,560 -3.69% $200K
Feb 16, 2024 Feb 21, 2024 Eidel Jeff Officer Sell 42.5 -15,498 -3.46% $92.3K
Feb 16, 2024 Feb 21, 2024 Kim Susan G. Officer Sell 42.5 -23,327 -7.62% $138.4K
Feb 16, 2024 Feb 21, 2024 HENRY CHRISTIAN O Officer Sell 40.0 -81,017 -7.46% $481.3K
Feb 16, 2024 Feb 21, 2024 Farmer Michele Officer Sell 46.3 -7,562 -6.96% $45.1K
Jan 9, 2024 Jan 10, 2024 Van Oene Mark Officer Sell 42.5 -31,012 -3.30% $241.1K
Dec 14, 2023 Dec 15, 2023 HENRY CHRISTIAN O Officer Sell 45.0 -20,000 -1.81% $200K
Oct 13, 2023 Oct 16, 2023 Meline David W Director Neutral 52.5 - 0.00% -
Oct 16, 2023 Meline David W Director Neutral 52.5 - 0.00% -
Sep 29, 2023 Sep 29, 2023 Kim Susan G. Officer Sell 42.5 -19,257 -5.92% $162.5K
Sep 18, 2023 Sep 19, 2023 HENRY CHRISTIAN O Officer Sell 40.0 -96,844 -8.05% $980.3K
Sep 11, 2023 Sep 12, 2023 HENRY CHRISTIAN O Officer Sell 47.5 -10,000 -0.82% $104.5K
Aug 17, 2023 Aug 18, 2023 HENRY CHRISTIAN O Officer Sell 47.5 -10,000 -0.82% $105K
Aug 17, 2023 Aug 18, 2023 Eidel Jeff Officer Sell 40.0 -25,936 -5.51% $274.8K
Aug 16, 2023 Aug 18, 2023 Van Oene Mark Officer Sell 40.0 -26,102 -2.70% $287.1K
May 24, 2023 May 26, 2023 MOHR MARSHALL Director Neutral 52.5 - 0.00% -
May 24, 2023 May 26, 2023 MILLIGAN JOHN F Director Neutral 52.5 - 0.00% -
May 24, 2023 May 26, 2023 Valantine Hannah Director Neutral 52.5 - 0.00% -
May 24, 2023 May 26, 2023 Botstein David Director Neutral 52.5 - 0.00% -
May 24, 2023 May 26, 2023 Shapiro Lucy Director Neutral 52.5 - 0.00% -
May 24, 2023 May 26, 2023 ORDONEZ KATHY Director Neutral 52.5 - 0.00% -
May 24, 2023 May 26, 2023 Ericson William W. Director Neutral 52.5 - 0.00% -
May 24, 2023 May 26, 2023 LIVINGSTON RANDALL S Director Neutral 52.5 - 0.00% -
May 18, 2023 May 22, 2023 MOHR MARSHALL Director Neutral 52.5 - 0.00% -
May 18, 2023 May 19, 2023 Farmer Michele Officer Sell 42.5 -5,165 -4.58% $65K
Mar 15, 2023 Mar 17, 2023 Ericson William W. Director Sell 22.5 -7,541 -28.63% $67.1K
Mar 2, 2023 Mar 6, 2023 HENRY CHRISTIAN O Officer Sell 95.0 +580,918 90.48% $130.7K
Mar 2, 2023 Mar 6, 2023 Van Oene Mark Officer Sell 95.0 +322,232 50.06% $59.5K
Mar 2, 2023 Mar 6, 2023 Kim Susan G. Officer Sell 91.3 +159,155 96.84% $47.9K
Mar 2, 2023 Mar 6, 2023 Farmer Michele Officer Sell 91.3 +48,947 76.73% $29.9K
Mar 2, 2023 Mar 6, 2023 Eidel Jeff Officer Neutral 90.0 +164,200 53.55% -
Feb 17, 2023 Feb 22, 2023 Kim Susan G. Officer Sell 50.0 -907 -0.55% $9.3K
Feb 17, 2023 Feb 22, 2023 HENRY CHRISTIAN O Officer Sell 51.3 -1,530 -0.24% $15.7K
Jan 10, 2023 Jan 11, 2023 Van Oene Mark Officer Sell 40.0 -26,722 -4.00% $254.8K
Dec 1, 2022 Dec 2, 2022 HENRY CHRISTIAN O Officer Sell 20.0 -45,000 -6.54% $488K
Sep 29, 2022 Oct 3, 2022 Kim Susan G. Officer Sell 42.5 -12,968 -7.35% $72.8K
Sep 15, 2022 Sep 19, 2022 HENRY CHRISTIAN O Officer Sell 40.0 -91,307 -11.71% $527.4K
Sep 6, 2022 Eidel Jeff Officer Neutral 52.5 - 0.00% -
Aug 25, 2022 Aug 26, 2022 Van Oene Mark Officer Neutral 90.0 +300,000 81.63% -