William W. Ericson

Insider

First SEC filing: June 4, 2026 · Latest: June 4, 2026

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

PACB selling March 15, 2023

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 34 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

34 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 3, 2026	PACB	A	223,492	—	—	223,492 Direct	—	Acquired	(price as of 2026-08-20)
June 4, 2025	PACB	A	65,000	—	—	65,000 Direct	—	Acquired	(price as of 2026-08-20)
June 18, 2024	PACB	A	22,821	—	—	41,616 Direct	+121.42%	Acquired	(price as of 2026-08-20)
June 18, 2024	PACB	A	32,179	—	—	32,179 Direct	—	Acquired	(price as of 2026-08-20)
May 24, 2023	PACB	A	25,775	—	—	25,775 Direct	—	Acquired	(price as of 2026-08-20)
March 15, 2023	PACB	M	25,000	$2.54	$63,500	26,336 Direct	+1871.26%	Acquired	-49.0% (price as of 2026-08-20)
March 15, 2023	PACB	S	7,541	$8.90	$67,115	18,795 Direct	-28.63%	Disposed	-85.4% (price as of 2026-08-20)
March 15, 2023	PACB	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 25, 2022	PACB	A	63,015	—	—	63,015 Direct	—	Acquired	(price as of 2026-08-20)
March 17, 2022	PACB	J	1,268	—	—	1,336 Direct	+1864.71%	Acquired	(price as of 2026-08-20)
March 17, 2022	PACB	J	4,848,397	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
June 16, 2021	PACB	A	12,885	—	—	12,885 Direct	—	Acquired	(price as of 2026-08-20)
May 25, 2021	PACB	M	12,500	$10.58	$132,250	12,500 Direct	—	Acquired	-87.8% (price as of 2026-08-20)
May 25, 2021	PACB	M	25,000	$1.83	$45,750	37,500 Direct	+200.00%	Acquired	-29.2% (price as of 2026-08-20)
May 25, 2021	PACB	S 10b5-1	36,600	$25.88	$947,208	900 Direct	-97.60%	Disposed	-95.0% (price as of 2026-08-20)
May 25, 2021	PACB	S 10b5-1	900	$26.42	$23,778	0 Direct	-100.00%	Disposed	-95.1% (price as of 2026-08-20)
May 25, 2021	PACB	M	12,500	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 25, 2021	PACB	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 12, 2021	PACB	J	68	—	—	68 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 12, 2021	PACB	J	750,000	—	—	4,848,397 Indirect	-13.40%	Disposed	(price as of 2026-08-20)
Aug. 4, 2020	PACB	A	97,785	—	—	97,785 Direct	—	Acquired	(price as of 2026-08-20)
May 22, 2018	PACB	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
May 24, 2017	PACB	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
May 17, 2016	PACB	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
May 20, 2015	PACB	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 19, 2014	PACB	P	39,299	$5.14	$201,997	5,598,397 Indirect	+0.71%	Acquired	-74.8% (price as of 2026-08-20)
Aug. 18, 2014	PACB	P	135,155	$5.09	$687,939	5,559,098 Indirect	+2.49%	Acquired	-74.6% (price as of 2026-08-20)
Aug. 14, 2014	PACB	P	77,822	$5.00	$389,110	5,423,943 Indirect	+1.46%	Acquired	-74.1% (price as of 2026-08-20)
Aug. 13, 2014	PACB	P	29,435	$4.93	$145,115	5,346,121 Indirect	+0.55%	Acquired	-73.7% (price as of 2026-08-20)
Aug. 12, 2014	PACB	P	123,423	$4.89	$603,538	5,316,686 Indirect	+2.38%	Acquired	-73.5% (price as of 2026-08-20)
Aug. 11, 2014	PACB	P	143,300	$4.87	$697,871	5,193,263 Indirect	+2.84%	Acquired	-73.4% (price as of 2026-08-20)
Aug. 11, 2014	PACB	A	143,300	$4.87	$697,871	5,193,263 Indirect	+2.84%	Acquired	-73.4% (price as of 2026-08-20)
Aug. 8, 2014	PACB	P	51,423	$4.90	$251,973	5,049,963 Indirect	+1.03%	Acquired	-73.6% (price as of 2026-08-20)
Aug. 8, 2014	PACB	A	51,423	$4.90	$251,973	5,049,963 Indirect	+1.03%	Acquired	-73.6% (price as of 2026-08-20)
Aug. 7, 2014	PACB	P	146,265	$4.77	$697,684	4,998,540 Indirect	+3.01%	Acquired	-72.9% (price as of 2026-08-20)
Aug. 7, 2014	PACB	A	146,265	$4.77	$697,684	4,998,540 Indirect	+3.01%	Acquired	-72.9% (price as of 2026-08-20)
Aug. 6, 2014	PACB	P	24,761	$4.74	$117,367	4,852,275 Indirect	+0.51%	Acquired	-72.7% (price as of 2026-08-20)
Aug. 6, 2014	PACB	A	24,761	$4.74	$117,367	4,852,275 Indirect	+0.51%	Acquired	-72.7% (price as of 2026-08-20)
Aug. 5, 2014	PACB	P	114,321	$4.64	$530,449	4,827,514 Indirect	+2.43%	Acquired	-72.1% (price as of 2026-08-20)
Aug. 5, 2014	PACB	A	114,321	$4.64	$530,449	4,827,514 Indirect	+2.43%	Acquired	-72.1% (price as of 2026-08-20)
June 12, 2014	PACB	P	45,875	$5.97	$273,874	4,713,193 Indirect	+0.98%	Acquired	-78.3% (price as of 2026-08-20)
June 12, 2014	PACB	A	45,875	$5.97	$273,874	4,713,193 Indirect	+0.98%	Acquired	-78.3% (price as of 2026-08-20)
June 10, 2014	PACB	P	68,921	$5.21	$359,078	4,667,318 Indirect	+1.50%	Acquired	-75.1% (price as of 2026-08-20)
June 10, 2014	PACB	A	68,921	$5.21	$359,078	4,667,318 Indirect	+1.50%	Acquired	-75.1% (price as of 2026-08-20)
May 22, 2014	PACB	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
May 21, 2013	PACB	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
June 13, 2012	PACB	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
June 23, 2011	PACB	A	12,500	—	—	12,500 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 26, 2010	PACB	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
June 3, 2026	PACB	Stock Option (right to buy)	Common Stock (223,492)	$1.58	June 3, 2036	223,492	Acquired
June 4, 2025	PACB	Stock Option (right to buy)	Common Stock (65,000)	$1.03	June 4, 2035	65,000	Acquired
June 18, 2024	PACB	Stock Option (right to buy)	Common Stock (32,179)	$1.65	June 18, 2034	32,179	Acquired
May 24, 2023	PACB	Stock Option (right to buy)	Common Stock (25,775)	$11.94	May 24, 2033	25,775	Acquired
March 15, 2023	PACB	Stock Option (right to buy)	Common Stock (25,000)	$2.54	May 21, 2023	25,000	Disposed
May 25, 2022	PACB	Stock Option (right to buy)	Common Stock (63,015)	$5.37	May 25, 2032	63,015	Acquired
June 16, 2021	PACB	Stock Option (right to buy)	Common Stock (12,885)	$27.90	June 16, 2031	12,885	Acquired
May 25, 2021	PACB	Stock Option (right to buy)	Common Stock (12,500)	$10.58	June 23, 2021	12,500	Disposed
May 25, 2021	PACB	Stock Option (right to buy)	Common Stock (25,000)	$1.83	June 13, 2022	25,000	Disposed
Aug. 4, 2020	PACB	Stock Option (right to buy)	Common Stock (97,785)	$3.89	Aug. 4, 2030	97,785	Acquired
May 22, 2018	PACB	Stock Option (right to buy)	Common Stock (25,000)	$2.61	May 22, 2028	25,000	Acquired
May 24, 2017	PACB	Stock Option (right to buy)	Common Stock (25,000)	$3.81	May 24, 2027	25,000	Acquired
May 17, 2016	PACB	Stock Option (right to buy)	Common Stock (25,000)	$8.98	May 17, 2026	25,000	Acquired
May 20, 2015	PACB	Stock Option (right to buy)	Common Stock (25,000)	$5.80	May 20, 2025	25,000	Acquired
May 22, 2014	PACB	Stock Option (right to buy)	Common Stock (25,000)	$4.45	May 22, 2024	25,000	Acquired
May 21, 2013	PACB	Stock Option (right to buy)	Common Stock (25,000)	$2.54	May 21, 2023	25,000	Acquired
June 13, 2012	PACB	Stock Option (right to buy)	Common Stock (25,000)	$1.83	June 13, 2022	25,000	Acquired
June 23, 2011	PACB	Stock Option (right to buy)	Common Stock (12,500)	$10.58	June 23, 2021	12,500	Acquired
Oct. 26, 2010	PACB	Stock Option (right to buy)	Common Stock (25,000)	$16.00	Oct. 26, 2020	25,000	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Oct. 26, 2010	PACB	Common Stock	4,598,397	Indirect