Sean T Smith

Insider

First SEC filing: June 5, 2006 · Latest: June 5, 2006

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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

PLAB selling Dec. 4, 2017

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 52 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

52 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Dec. 4, 2017	PLAB	M	12,500	—	—	12,500 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Dec. 4, 2017	PLAB	S 10b5-1	12,500	$9.43	$117,875	140,358 Direct	-8.18%	Disposed	224.0% (price as of 2026-08-20)
Dec. 4, 2017	PLAB	M	12,500	$6.71	$83,875	152,858 Direct	+8.91%	Acquired	355.3% (price as of 2026-08-20)
Nov. 24, 2017	PLAB	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 24, 2017	PLAB	S 10b5-1	25,000	$9.19	$229,750	140,358 Direct	-15.12%	Disposed	232.4% (price as of 2026-08-20)
Nov. 24, 2017	PLAB	M	25,000	$6.32	$158,000	165,358 Direct	+17.81%	Acquired	383.4% (price as of 2026-08-20)
Oct. 31, 2017	PLAB	M	18,750	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 31, 2017	PLAB	S 10b5-1	18,750	$9.48	$177,750	140,358 Direct	-11.78%	Disposed	222.3% (price as of 2026-08-20)
Oct. 31, 2017	PLAB	M	18,750	$5.46	$102,375	159,108 Direct	+13.36%	Acquired	459.5% (price as of 2026-08-20)
Oct. 4, 2017	PLAB	M	18,750	—	—	18,750 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 4, 2017	PLAB	S 10b5-1	18,750	$9.19	$172,312	140,358 Direct	-11.78%	Disposed	232.4% (price as of 2026-08-20)
Oct. 4, 2017	PLAB	M	18,750	$5.46	$102,375	159,108 Direct	+13.36%	Acquired	459.5% (price as of 2026-08-20)
Jan. 3, 2017	PLAB	A	22,000	$11.35	$249,700	38,250 Direct	+135.38%	Acquired	169.2% (price as of 2026-08-20)
Jan. 3, 2017	PLAB	A	16,000	—	—	138,006 Direct	+13.11%	Acquired	(price as of 2026-08-20)
Dec. 13, 2016	PLAB	M	15,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 13, 2016	PLAB	S 10b5-1	15,000	$11.49	$172,350	122,006 Direct	-10.95%	Disposed	165.9% (price as of 2026-08-20)
Dec. 13, 2016	PLAB	M	15,000	$4.42	$66,300	137,006 Direct	+12.29%	Acquired	591.2% (price as of 2026-08-20)
July 28, 2016	PLAB	J	2,352	$8.13	$19,122	140,358 Direct	+1.70%	Acquired	275.8% (price as of 2026-08-20)
Jan. 4, 2016	PLAB	A	38,250	$12.13	$463,972	38,250 Direct	—	Acquired	151.9% (price as of 2026-08-20)
Jan. 4, 2016	PLAB	A	6,375	—	—	122,006 Direct	+5.51%	Acquired	(price as of 2026-08-20)
Dec. 14, 2015	PLAB	M	10,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 14, 2015	PLAB	M	10,000	$4.42	$44,200	115,631 Direct	+9.47%	Acquired	591.2% (price as of 2026-08-20)
Dec. 11, 2015	PLAB	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 11, 2015	PLAB	M	25,000	$4.42	$110,500	130,631 Direct	+23.67%	Acquired	591.2% (price as of 2026-08-20)
Dec. 11, 2015	PLAB	S 10b5-1	25,000	$12.48	$312,000	105,631 Direct	-19.14%	Disposed	144.8% (price as of 2026-08-20)
July 30, 2015	PLAB	J	2,500	$7.25	$18,125	105,631 Direct	+2.42%	Acquired	321.4% (price as of 2026-08-20)
July 30, 2015	PLAB	P	2,500	$7.25	$18,125	105,631 Direct	+2.42%	Acquired	321.4% (price as of 2026-08-20)
Dec. 19, 2014	PLAB	A	37,500	$8.23	$308,625	37,500 Direct	—	Acquired	271.2% (price as of 2026-08-20)
Dec. 19, 2014	PLAB	A	6,250	—	—	103,131 Direct	+6.45%	Acquired	(price as of 2026-08-20)
Dec. 18, 2014	PLAB	X	16,050	$0.76	$12,198	0 Direct	-100.00%	Disposed	3919.7% (price as of 2026-08-20)
Dec. 18, 2014	PLAB	S 10b5-1	16,050	$8.25	$132,412	96,881 Direct	-14.21%	Disposed	270.3% (price as of 2026-08-20)
Dec. 18, 2014	PLAB	A	16,050	$0.76	$12,198	112,931 Direct	+16.57%	Acquired	3919.7% (price as of 2026-08-20)
Dec. 15, 2014	PLAB	X	200	$0.76	$152	0 Direct	-100.00%	Disposed	3919.7% (price as of 2026-08-20)
Dec. 15, 2014	PLAB	S 10b5-1	200	$8.25	$1,650	96,881 Direct	-0.21%	Disposed	270.3% (price as of 2026-08-20)
Dec. 15, 2014	PLAB	A	200	$0.76	$152	97,081 Direct	+0.21%	Acquired	3919.7% (price as of 2026-08-20)
July 31, 2014	PLAB	P	2,757	$6.77	$18,665	96,881 Direct	+2.93%	Acquired	351.3% (price as of 2026-08-20)
Dec. 16, 2013	PLAB	S	13,125	$8.78	$115,238	94,124 Direct	-12.24%	Disposed	247.9% (price as of 2026-08-20)
Dec. 13, 2013	PLAB	A	37,500	$8.86	$332,250	37,500 Direct	—	Acquired	244.8% (price as of 2026-08-20)
Dec. 13, 2013	PLAB	A	6,250	—	—	107,249 Direct	+6.19%	Acquired	(price as of 2026-08-20)
Aug. 1, 2013	PLAB	P	3,409	$5.50	$18,750	100,999 Direct	+3.49%	Acquired	455.5% (price as of 2026-08-20)
Dec. 7, 2012	PLAB	A	37,500	$5.46	$204,750	37,500 Direct	-50.00%	Disposed	459.5% (price as of 2026-08-20)
Dec. 7, 2012	PLAB	A	13,500	—	—	97,590 Direct	+16.05%	Acquired	(price as of 2026-08-20)
Aug. 2, 2012	PLAB	P	2,475	$4.85	$12,004	84,090 Direct	+3.03%	Acquired	529.9% (price as of 2026-08-20)
Feb. 21, 2012	PLAB	M	16,250	—	—	16,250 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Feb. 21, 2012	PLAB	S 10b5-1	16,250	$7.25	$117,812	81,615 Direct	-16.60%	Disposed	321.4% (price as of 2026-08-20)
Feb. 21, 2012	PLAB	M	16,250	$0.76	$12,350	97,865 Direct	+19.91%	Acquired	3919.7% (price as of 2026-08-20)
Dec. 9, 2011	PLAB	A	25,000	$6.32	$158,000	25,000 Direct	—	Acquired	383.4% (price as of 2026-08-20)
Dec. 9, 2011	PLAB	A	12,500	—	—	81,615 Direct	+18.09%	Acquired	(price as of 2026-08-20)
Aug. 4, 2011	PLAB	P	4,059	$3.70	$15,018	69,115 Direct	+6.24%	Acquired	725.7% (price as of 2026-08-20)
June 30, 2011	PLAB	S	10,000	$8.17	$81,700	65,056 Direct	-13.32%	Disposed	273.9% (price as of 2026-08-20)
Dec. 10, 2010	PLAB	X	16,250	—	—	32,500 Direct	-33.33%	Disposed	(price as of 2026-08-20)
Dec. 10, 2010	PLAB	S	16,250	$6.82	$110,825	75,056 Direct	-17.80%	Disposed	347.9% (price as of 2026-08-20)
Dec. 10, 2010	PLAB	X	16,250	$0.76	$12,350	91,306 Direct	+21.65%	Acquired	3919.7% (price as of 2026-08-20)
Dec. 10, 2010	PLAB	A	25,000	$6.71	$167,750	25,000 Direct	—	Acquired	355.3% (price as of 2026-08-20)
Dec. 10, 2010	PLAB	A	12,500	—	—	75,056 Direct	+19.98%	Acquired	(price as of 2026-08-20)
Aug. 5, 2010	PLAB	J	4,405	$3.41	$15,021	62,556 Direct	+7.58%	Acquired	795.9% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	X	16,250	—	—	48,750 Direct	-25.00%	Disposed	(price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	782	$4.57	$3,574	58,151 Direct	-1.33%	Disposed	568.5% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	500	$4.57	$2,285	58,933 Direct	-0.84%	Disposed	568.5% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	2,500	$4.56	$11,400	59,433 Direct	-4.04%	Disposed	570.0% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	900	$4.55	$4,095	61,933 Direct	-1.43%	Disposed	571.4% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	500	$4.54	$2,270	62,833 Direct	-0.79%	Disposed	572.9% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	200	$4.53	$906	63,333 Direct	-0.31%	Disposed	574.4% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	100	$4.52	$452	63,533 Direct	-0.16%	Disposed	575.9% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	800	$4.52	$3,616	63,633 Direct	-1.24%	Disposed	575.9% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	700	$4.51	$3,157	64,433 Direct	-1.07%	Disposed	577.4% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	500	$4.50	$2,250	65,133 Direct	-0.76%	Disposed	578.9% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	200	$4.49	$898	65,633 Direct	-0.30%	Disposed	580.4% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	100	$4.48	$448	65,833 Direct	-0.15%	Disposed	581.9% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	500	$4.48	$2,240	65,933 Direct	-0.75%	Disposed	581.9% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	1,800	$4.48	$8,064	66,433 Direct	-2.64%	Disposed	581.9% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	800	$4.48	$3,584	68,233 Direct	-1.16%	Disposed	581.9% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	300	$4.48	$1,344	69,033 Direct	-0.43%	Disposed	581.9% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	200	$4.48	$896	69,333 Direct	-0.29%	Disposed	581.9% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	700	$4.47	$3,129	69,533 Direct	-1.00%	Disposed	583.4% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	1,000	$4.47	$4,470	70,233 Direct	-1.40%	Disposed	583.4% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	100	$4.46	$446	71,233 Direct	-0.14%	Disposed	585.0% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	900	$4.46	$4,014	71,333 Direct	-1.25%	Disposed	585.0% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	X	16,250	$0.76	$12,350	74,401 Direct	+27.94%	Acquired	3919.7% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	668	$4.45	$2,973	72,233 Direct	-0.92%	Disposed	586.5% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	1,000	$4.45	$4,450	72,901 Direct	-1.35%	Disposed	586.5% (price as of 2026-08-20)
Feb. 24, 2010	PLAB	S	500	$4.43	$2,215	73,901 Direct	-0.67%	Disposed	589.6% (price as of 2026-08-20)
Dec. 21, 2009	PLAB	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
July 15, 2009	PLAB	S	1,900	$5.08	$9,652	58,151 Direct	-3.16%	Disposed	501.4% (price as of 2026-08-20)
July 15, 2009	PLAB	S	200	$5.08	$1,016	60,051 Direct	-0.33%	Disposed	501.4% (price as of 2026-08-20)
July 15, 2009	PLAB	S	2,600	$5.09	$13,234	60,251 Direct	-4.14%	Disposed	500.2% (price as of 2026-08-20)
July 15, 2009	PLAB	S	300	$5.09	$1,527	62,851 Direct	-0.48%	Disposed	500.2% (price as of 2026-08-20)
Nov. 10, 2008	PLAB	A	65,000	—	—	65,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 21, 2008	PLAB	A	12,500	—	—	61,988 Direct	+25.26%	Acquired	(price as of 2026-08-20)
Aug. 9, 2007	PLAB	J	1,213	$10.22	$12,397	49,488 Direct	+2.51%	Acquired	198.9% (price as of 2026-08-20)
Aug. 10, 2006	PLAB	J	746	$11.60	$8,654	48,275 Direct	+1.57%	Acquired	163.4% (price as of 2026-08-20)
June 2, 2006	PLAB	A	90,000	$17.02	$1,531,800	90,000 Direct	—	Acquired	79.5% (price as of 2026-08-20)
June 2, 2006	PLAB	A	40,000	—	—	47,529 Direct	+531.28%	Acquired	(price as of 2026-08-20)
Jan. 17, 2005	PLAB	A	75,000	$14.56	$1,092,000	75,000 Direct	—	Acquired	109.8% (price as of 2026-08-20)
Jan. 17, 2005	PLAB	A	1,000	$14.56	$14,560	6,656 Direct	+17.68%	Acquired	109.8% (price as of 2026-08-20)
Feb. 24, 2004	PLAB	A	1,000	—	—	4,970 Direct	+25.19%	Acquired	(price as of 2026-08-20)
Sept. 4, 2003	PLAB	S	5,225	$25.17	$131,513	3,970 Direct	-56.82%	Disposed	21.4% (price as of 2026-08-20)
Sept. 4, 2003	PLAB	S	5,225	$25.17	$131,513	3,214 Direct	-61.91%	Disposed	21.4% (price as of 2026-08-20)
Sept. 4, 2003	PLAB	M	5,225	$12.93	$67,559	8,439 Direct	+162.57%	Acquired	136.3% (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
Dec. 4, 2017	PLAB	STOCK OPTIONS (RIGHT TO BUY)	COMMON STOCK (12,500)	$6.71	Dec. 10, 2020	12,500	Disposed
Nov. 24, 2017	PLAB	STOCK OPTIONS (RIGHT TO BUY)	COMMON STOCK (25,000)	$6.32	Dec. 9, 2021	25,000	Disposed
Oct. 31, 2017	PLAB	STOCK OPTIONS (RIGHT TO BUY)	COMMON STOCK (18,750)	$5.46	Dec. 7, 2022	18,750	Disposed
Oct. 4, 2017	PLAB	STOCK OPTIONS (RIGHT TO BUY)	COMMON STOCK (18,750)	$5.46	Dec. 7, 2022	18,750	Acquired
Jan. 3, 2017	PLAB	Stock Options (Right to Buy)	Common Stock (22,000)	$11.35	Jan. 3, 2027	22,000	Acquired
Dec. 13, 2016	PLAB	Stock Options (Right to Buy)	Common Stock (15,000)	$4.42	Dec. 21, 2019	15,000	Disposed
Jan. 4, 2016	PLAB	Stock Options (Right to Buy)	Common Stock (38,250)	$12.13	Jan. 4, 2026	38,250	Acquired
Dec. 14, 2015	PLAB	Stock Options (Right to Buy)	Common Stock (10,000)	$4.42	Dec. 21, 2019	10,000	Disposed
Dec. 11, 2015	PLAB	Stock Options (Right to Buy)	Common Stock (25,000)	$4.42	Dec. 21, 2019	25,000	Disposed
Dec. 19, 2014	PLAB	Stock Options (Right to Buy)	Common Stock (37,500)	$8.23	Dec. 19, 2024	37,500	Acquired
Dec. 18, 2014	PLAB	Stock Options (Right to Buy)	Common Stock (16,050)	$0.76	Nov. 10, 2018	16,050	Disposed
Dec. 15, 2014	PLAB	Stock Options (Right to Buy)	Common Stock (200)	$0.76	Nov. 10, 2018	200	Disposed
Dec. 13, 2013	PLAB	Stock Options (Right to Buy)	Common Stock (37,500)	$8.86	Dec. 13, 2023	37,500	Acquired
Dec. 7, 2012	PLAB	Stock Options (Right to Buy)	Common Stock (37,500)	$5.46	Dec. 7, 2022	37,500	Disposed
Feb. 21, 2012	PLAB	Stock Options (Right to Buy)	Common Stock (16,250)	$0.76	Nov. 10, 2018	16,250	Disposed
Dec. 9, 2011	PLAB	Stock Options (Right to Buy)	Common Stock (25,000)	$6.32	Dec. 9, 2021	25,000	Acquired
Dec. 10, 2010	PLAB	Stock Options (Right to Buy)	Common Stock (16,250)	$0.76	Nov. 10, 2018	16,250	Disposed
Dec. 10, 2010	PLAB	Stock Options (Right to Buy)	Common Stock (25,000)	$6.71	Dec. 10, 2020	25,000	Acquired
Feb. 24, 2010	PLAB	Stock Options (Right to Buy)	Common Stock (16,250)	$0.76	Nov. 10, 2018	16,250	Disposed
Dec. 21, 2009	PLAB	Stock Options (Right to Buy)	Common Stock (50,000)	$4.42	Dec. 21, 2019	50,000	Acquired
Nov. 10, 2008	PLAB	Stock Options (Right to Buy)	Common Stock (65,000)	$0.76	Nov. 10, 2018	65,000	Acquired
June 2, 2006	PLAB	Stock Option (Right to Buy)	Common Stock (90,000)	$17.02	June 2, 2016	90,000	Acquired
Jan. 17, 2005	PLAB	Stock Option (right to buy)	Common Stock (75,000)	$14.56	Jan. 17, 2015	75,000	Acquired

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

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

PLAB

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2017	$383,222	—	—	—	—	—	—	$649,334
2015	$382,211	$67,000	$51,438	$145,463	—	—	$12,819	$658,931
2004	$230,769	$56,940	—	—	—	—	—	—

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.