Pacific Biosciences of California, Inc. PACB NASDAQ

NASDAQ Global Select • Healthcare • Medical - Devices • US • USD

SharesGrow Score

41/100

2/7 Pass

SharesGrow Intrinsic Value

There have been 50 recent insider transactions recorded for Pacific Biosciences of California, Inc. (PACB), including 24 buys and 23 sells. Total insider buying was valued at $10.55M and total insider selling at $2.46M.

Notable insiders with recent activity include Gibson James R Ii, Henry Christian O, Van Oene Mark. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.

Insider Transactions — PACB

Date	Name	Role	Transaction	Shares	Avg. Price	Value	Shares Owned
2026-04-01	Gibson James R Ii	See Remarks	Informative Sell	88,185	$1.37	$120.81K	1,245,663
2026-03-03	Henry Christian O	See Remarks	Informative Sell	12,497	$1.51	$18.92K	3,581,813
2026-03-03	Van Oene Mark	See Remarks	Informative Sell	6,504	$1.51	$9.85K	2,243,634
2026-03-03	Farmer Michele	See Remarks	Informative Sell	2,979	$1.51	$4.51K	305,948
2026-03-03	Gibson Christopher	Director	Unknown	-	-	-	-
2026-03-03	Gibson Christopher	Director	RSU Award	53,913	-	-	53,913
2026-02-27	Henry Christian O	See Remarks	RSU Award	1,841,621	$1.68	$3.09M	1,841,621
2026-02-27	Gibson James R Ii	See Remarks	RSU Award	667,696	$1.68	$1.12M	667,696
2026-02-27	Van Oene Mark	See Remarks	RSU Award	1,000,000	$1.68	$1.68M	1,000,000
2026-02-27	Farmer Michele	See Remarks	RSU Award	179,670	$1.68	$301.85K	179,670
2026-02-18	Henry Christian O	See Remarks	Informative Sell	140,874	$1.63	$229.48K	2,673,500
2026-02-18	Van Oene Mark	See Remarks	Informative Sell	55,107	$1.63	$89.77K	1,742,638
2026-02-18	Farmer Michele	See Remarks	Informative Sell	14,952	$1.63	$24.36K	219,092
2026-02-17	Henry Christian O	See Remarks	Informative Sell	331,793	$1.58	$522.91K	2,814,374
2026-02-17	Van Oene Mark	See Remarks	Informative Sell	129,790	$1.58	$204.55K	1,797,745
2026-02-17	Farmer Michele	See Remarks	Informative Sell	35,215	$1.58	$55.5K	234,044
2025-08-18	Van Oene Mark	See Remarks	Informative Sell	26,836	$1.31	$35.18K	1,920,035
2025-06-04	Milligan John F	Director	RSU Award	65,000	$1.03	$66.95K	65,000
2025-06-04	Ordonez Kathy	Director	RSU Award	65,000	$1.03	$66.95K	65,000
2025-06-04	Livingston Randall S	Director	RSU Award	65,000	$1.03	$66.95K	65,000
2025-06-04	Mohr Marshall	Director	RSU Award	65,000	$1.03	$66.95K	65,000
2025-06-04	Shapiro Lucy	Director	RSU Award	65,000	$1.03	$66.95K	65,000
2025-06-04	Smith Christopher M	Director	RSU Award	32,500	$1.03	$33.48K	32,500
2025-06-04	Ericson William W.	Director	RSU Award	65,000	$1.03	$66.95K	65,000
2025-06-04	Valantine Hannah	Director	RSU Award	65,000	$1.03	$66.95K	65,000
2025-05-19	Farmer Michele	See Remarks	Informative Sell	5,195	$1.00	$5.2K	269,259
2025-03-31	Gibson James R Ii	Officer	Unknown	-	-	-	-
2025-03-31	Gibson James R Ii	See Remarks	RSU Award	1,000,000	-	-	1,000,000
2025-03-19	Henry Christian O	See Remarks	RSU Award	1,841,621	$1.25	$2.3M	1,841,621
2025-03-19	Van Oene Mark	See Remarks	RSU Award	898,352	$1.25	$1.12M	898,352
2025-03-19	Farmer Michele	See Remarks	RSU Award	179,670	$1.25	$224.59K	179,670
2025-03-03	Henry Christian O	See Remarks	Informative Sell	12,497	$1.41	$17.58K	2,225,357
2025-03-03	Van Oene Mark	See Remarks	Informative Sell	6,486	$1.41	$9.13K	1,497,695
2025-03-03	Farmer Michele	See Remarks	Informative Sell	2,973	$1.41	$4.18K	184,619
2025-02-18	Henry Christian O	See Remarks	Informative Sell	259,909	$1.88	$488.11K	2,237,854
2025-02-18	Van Oene Mark	See Remarks	Informative Sell	100,773	$1.88	$189.25K	1,496,681
2025-02-18	Farmer Michele	See Remarks	Informative Sell	24,349	$1.88	$45.73K	187,592
2025-01-30	Smith Christopher M	Director	Unknown	-	-	-	-
2025-01-30	Smith Christopher M	Director	RSU Award	54,099	-	-	54,099
2025-01-10	Van Oene Mark	See Remarks	Informative Sell	34,405	$2.03	$69.98K	1,597,454
2024-09-30	Kim Susan G.	See Remarks	Informative Sell	19,782	$1.72	$34.06K	695,654
2024-09-16	Henry Christian O	See Remarks	Informative Sell	98,907	$1.75	$172.69K	2,497,763
2024-08-19	Eidel Jeff	See Remarks	Informative Sell	26,760	$1.59	$42.6K	869,730
2024-08-16	Van Oene Mark	See Remarks	Informative Sell	38,011	$1.66	$63.17K	1,630,815
2024-06-18	Milligan John F	Director	RSU Award	32,179	$1.65	$53.1K	32,179
2024-06-18	Ordonez Kathy	Director	RSU Award	32,179	$1.65	$53.1K	32,179
2024-06-18	Livingston Randall S	Director	RSU Award	22,821	-	-	22,821
2024-06-18	Mohr Marshall	Director	RSU Award	32,179	$1.65	$53.1K	32,179
2024-06-18	Shapiro Lucy	Director	RSU Award	22,821	-	-	22,821
2024-06-18	Meline David W	Director	RSU Award	24,134	$1.65	$39.82K	24,134

■ Informative Buy/Sell — open market transaction (most significant) ■ Uninformative Buy — award, option exercise, conversion ■ Uninformative Sell — tax withholding, award vest sale ■ Neutral — gift, trust, expiry