Michael A Anderson

Insider

First SEC filing: June 4, 2007 · Latest: June 4, 2007

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.

Insider at

WST selling March 1, 2016

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 66 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

66 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 1, 2016	WST	M	1,414	$22.48	$31,787	0 Direct	-100.00%	Disposed	1474.6% (price as of 2026-08-20)
March 1, 2016	WST	M	7,000	$16.05	$112,350	0 Direct	-100.00%	Disposed	2105.5% (price as of 2026-08-20)
March 1, 2016	WST	S	8,000	$63.56	$508,480	55,507 Direct	-12.60%	Disposed	456.9% (price as of 2026-08-20)
March 1, 2016	WST	S	7,000	$63.60	$445,200	63,507 Direct	-9.93%	Disposed	456.6% (price as of 2026-08-20)
March 1, 2016	WST	S	1,414	$63.66	$90,015	70,507 Direct	-1.97%	Disposed	456.0% (price as of 2026-08-20)
March 1, 2016	WST	M	1,414	$22.48	$31,787	71,921 Direct	+2.01%	Acquired	1474.6% (price as of 2026-08-20)
March 1, 2016	WST	M	7,000	$16.05	$112,350	70,507 Direct	+11.02%	Acquired	2105.5% (price as of 2026-08-20)
Feb. 23, 2016	WST	A	6,504	$59.64	$387,899	6,504 Direct	—	Acquired	493.5% (price as of 2026-08-20)
Feb. 23, 2016	WST	A	1,897	$59.64	$113,137	63,507 Direct	+3.08%	Acquired	493.5% (price as of 2026-08-20)
Nov. 6, 2015	WST	S	3,000	$62.18	$186,540	61,497 Direct	-4.65%	Disposed	469.3% (price as of 2026-08-20)
Nov. 5, 2015	WST	M	10,000	$22.48	$224,800	1,414 Direct	-87.61%	Disposed	1474.6% (price as of 2026-08-20)
Nov. 5, 2015	WST	S	10,000	$61.98	$619,800	64,497 Direct	-13.42%	Disposed	471.1% (price as of 2026-08-20)
Nov. 5, 2015	WST	M	10,000	$22.48	$224,800	74,497 Direct	+15.50%	Acquired	1474.6% (price as of 2026-08-20)
May 29, 2015	WST	S	3,196	$54.73	$174,917	64,436 Direct	-4.73%	Disposed	546.8% (price as of 2026-08-20)
May 29, 2015	WST	M	2,000	$16.05	$32,100	7,000 Direct	-22.22%	Disposed	2105.5% (price as of 2026-08-20)
May 29, 2015	WST	S	2,000	$54.44	$108,880	67,632 Direct	-2.87%	Disposed	550.2% (price as of 2026-08-20)
May 29, 2015	WST	M	2,000	$16.05	$32,100	69,632 Direct	+2.96%	Acquired	2105.5% (price as of 2026-08-20)
Feb. 27, 2015	WST	S	3,600	$54.75	$197,100	67,568 Direct	-5.06%	Disposed	546.5% (price as of 2026-08-20)
Feb. 27, 2015	WST	M	2,000	$16.05	$32,100	9,000 Direct	-18.18%	Disposed	2105.5% (price as of 2026-08-20)
Feb. 27, 2015	WST	S	2,000	$54.70	$109,400	69,168 Direct	-2.81%	Disposed	547.1% (price as of 2026-08-20)
Feb. 27, 2015	WST	S	2,000	$54.70	$109,400	71,168 Direct	-2.73%	Disposed	547.1% (price as of 2026-08-20)
Feb. 27, 2015	WST	M	2,000	$16.05	$32,100	73,168 Direct	+2.81%	Acquired	2105.5% (price as of 2026-08-20)
Feb. 26, 2015	WST	M	4,682	$16.29	$76,270	0 Direct	-100.00%	Disposed	2073.0% (price as of 2026-08-20)
Feb. 26, 2015	WST	S	4,682	$54.92	$257,135	71,168 Direct	-6.17%	Disposed	544.5% (price as of 2026-08-20)
Feb. 26, 2015	WST	M	4,682	$16.29	$76,270	75,850 Direct	+6.58%	Acquired	2073.0% (price as of 2026-08-20)
Feb. 23, 2015	WST	A	7,360	$54.14	$398,470	7,360 Direct	—	Acquired	553.8% (price as of 2026-08-20)
Feb. 17, 2015	WST	A	3,578	$51.53	$184,374	71,168 Direct	+5.29%	Acquired	586.9% (price as of 2026-08-20)
Nov. 11, 2014	WST	M	4,600	$16.29	$74,934	4,682 Direct	-49.56%	Disposed	2073.0% (price as of 2026-08-20)
Nov. 11, 2014	WST	S	4,600	$51.73	$237,958	67,313 Direct	-6.40%	Disposed	584.3% (price as of 2026-08-20)
Nov. 11, 2014	WST	M	4,600	$16.29	$74,934	71,913 Direct	+6.83%	Acquired	2073.0% (price as of 2026-08-20)
Aug. 20, 2014	WST	S	3,400	$44.24	$150,416	67,313 Direct	-4.81%	Disposed	700.1% (price as of 2026-08-20)
Aug. 20, 2014	WST	M	3,400	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 20, 2014	WST	M	3,400	$12.76	$43,384	70,713 Direct	+5.05%	Acquired	2674.1% (price as of 2026-08-20)
Aug. 19, 2014	WST	S	5,000	$43.41	$217,050	67,313 Direct	-6.91%	Disposed	715.4% (price as of 2026-08-20)
Aug. 19, 2014	WST	S	2,100	$43.41	$91,161	72,313 Direct	-2.82%	Disposed	715.4% (price as of 2026-08-20)
Aug. 19, 2014	WST	S	1,920	$43.41	$83,347	74,413 Direct	-2.52%	Disposed	715.4% (price as of 2026-08-20)
Aug. 19, 2014	WST	S	600	$43.42	$26,052	76,333 Direct	-0.78%	Disposed	715.2% (price as of 2026-08-20)
Aug. 19, 2014	WST	S	180	$43.41	$7,814	76,933 Direct	-0.23%	Disposed	715.4% (price as of 2026-08-20)
Feb. 24, 2014	WST	A	7,232	$47.34	$342,363	7,232 Direct	—	Acquired	647.7% (price as of 2026-08-20)
Feb. 19, 2014	WST	F	68	$47.74	$3,246	77,048 Direct	-0.09%	Disposed	641.5% (price as of 2026-08-20)
Feb. 18, 2014	WST	A	2,757	$48.69	$134,238	77,116 Direct	+3.71%	Acquired	627.0% (price as of 2026-08-20)
Jan. 17, 2014	WST	F	366	$49.69	$18,187	74,296 Direct	-0.49%	Disposed	612.4% (price as of 2026-08-20)
Nov. 8, 2013	WST	S	4,700	$46.78	$219,866	73,406 Direct	-6.02%	Disposed	656.7% (price as of 2026-08-20)
Nov. 8, 2013	WST	S	4,500	$46.81	$210,645	78,106 Direct	-5.45%	Disposed	656.2% (price as of 2026-08-20)
Nov. 6, 2013	WST	S	4,000	$46.53	$186,120	82,606 Direct	-4.62%	Disposed	660.7% (price as of 2026-08-20)
Nov. 6, 2013	WST	S	2,000	$46.54	$93,080	86,606 Direct	-2.26%	Disposed	660.6% (price as of 2026-08-20)
Aug. 8, 2013	WST	M	3,000	$25.53	$76,590	1,700 Direct	-63.83%	Disposed	2673.0% (price as of 2026-08-20)
Aug. 8, 2013	WST	S	3,000	$78.00	$234,000	44,303 Direct	-6.34%	Disposed	807.6% (price as of 2026-08-20)
Aug. 8, 2013	WST	S	1,300	$78.00	$101,400	47,303 Direct	-2.67%	Disposed	807.6% (price as of 2026-08-20)
Aug. 8, 2013	WST	M	3,000	$25.53	$76,590	48,603 Direct	+6.58%	Acquired	2673.0% (price as of 2026-08-20)
May 31, 2013	WST	M	2,300	$25.53	$58,719	4,700 Direct	-32.86%	Disposed	2673.0% (price as of 2026-08-20)
May 31, 2013	WST	S	2,300	$68.92	$158,516	45,561 Direct	-4.81%	Disposed	927.2% (price as of 2026-08-20)
May 31, 2013	WST	S	1,700	$68.96	$117,232	47,861 Direct	-3.43%	Disposed	926.6% (price as of 2026-08-20)
May 31, 2013	WST	M	2,300	$25.53	$58,719	49,561 Direct	+4.87%	Acquired	2673.0% (price as of 2026-08-20)
March 26, 2013	WST	A	807	—	—	807 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 28, 2013	WST	M	2,400	$19.36	$46,464	0 Direct	-100.00%	Disposed	3556.8% (price as of 2026-08-20)
Feb. 28, 2013	WST	S	2,500	$60.58	$151,450	47,214 Direct	-5.03%	Disposed	1068.6% (price as of 2026-08-20)
Feb. 28, 2013	WST	S	2,400	$60.45	$145,080	49,714 Direct	-4.61%	Disposed	1071.1% (price as of 2026-08-20)
Feb. 28, 2013	WST	M	2,400	$19.36	$46,464	52,114 Direct	+4.83%	Acquired	3556.8% (price as of 2026-08-20)
Feb. 22, 2013	WST	F	116	$60.70	$7,041	49,714 Direct	-0.23%	Disposed	1066.3% (price as of 2026-08-20)
Feb. 19, 2013	WST	A	1,360	$59.11	$80,390	49,830 Direct	+2.81%	Acquired	1097.7% (price as of 2026-08-20)
Feb. 19, 2013	WST	A	5,707	—	—	5,707 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 14, 2013	WST	G	200	—	—	48,418 Direct	-0.41%	Disposed	(price as of 2026-08-20)
Jan. 14, 2013	WST	F	274	$55.05	$15,084	48,618 Direct	-0.56%	Disposed	1186.0% (price as of 2026-08-20)
Nov. 9, 2012	WST	S	2,800	$53.65	$150,220	47,952 Direct	-5.52%	Disposed	1219.6% (price as of 2026-08-20)
May 31, 2012	WST	M	5,800	$19.36	$112,288	2,400 Direct	-70.73%	Disposed	3556.8% (price as of 2026-08-20)
May 31, 2012	WST	S	5,800	$47.81	$277,298	50,562 Direct	-10.29%	Disposed	1380.8% (price as of 2026-08-20)
May 31, 2012	WST	M	5,800	$19.36	$112,288	56,362 Direct	+11.47%	Acquired	3556.8% (price as of 2026-08-20)
Feb. 21, 2012	WST	A	482	$42.44	$20,456	50,499 Direct	+0.96%	Acquired	1568.1% (price as of 2026-08-20)
Feb. 21, 2012	WST	A	8,197	—	—	8,197 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 21, 2012	WST	A	705	$42.44	$29,920	50,722 Direct	+1.41%	Acquired	1568.1% (price as of 2026-08-20)
Jan. 16, 2012	WST	F	32	$38.95	$1,246	50,093 Direct	-0.06%	Disposed	1717.6% (price as of 2026-08-20)
May 4, 2011	WST	S	5,375	$47.04	$252,840	49,840 Direct	-9.73%	Disposed	1405.0% (price as of 2026-08-20)
May 4, 2011	WST	S	1,625	$46.96	$76,310	55,215 Direct	-2.86%	Disposed	1407.6% (price as of 2026-08-20)
Feb. 22, 2011	WST	A	851	$40.85	$34,763	5,087 Indirect	+20.09%	Acquired	1633.0% (price as of 2026-08-20)
Feb. 22, 2011	WST	A	7,420	—	—	7,420 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 22, 2011	WST	A	625	$40.85	$25,531	57,631 Direct	+1.10%	Acquired	1633.0% (price as of 2026-08-20)
Feb. 22, 2011	WST	A	851	$40.85	$34,763	57,006 Direct	+1.52%	Acquired	1633.0% (price as of 2026-08-20)
Feb. 4, 2011	WST	F	32	$40.88	$1,308	56,155 Direct	-0.06%	Disposed	1631.8% (price as of 2026-08-20)
Aug. 5, 2010	WST	S	3,400	$34.84	$118,456	55,954 Direct	-5.73%	Disposed	1932.0% (price as of 2026-08-20)
March 22, 2010	WST	M	12,500	$13.02	$162,750	0 Direct	-100.00%	Disposed	5337.4% (price as of 2026-08-20)
March 22, 2010	WST	F	6,471	$42.68	$276,182	59,240 Direct	-9.85%	Disposed	1558.7% (price as of 2026-08-20)
March 22, 2010	WST	M	12,500	$13.02	$162,750	65,711 Direct	+23.49%	Acquired	5337.4% (price as of 2026-08-20)
March 22, 2010	WST	A	8,197	—	—	8,197 Direct	—	Acquired	(price as of 2026-08-20)
March 1, 2010	WST	M	12,532	$13.02	$163,167	12,500 Direct	-50.06%	Disposed	5337.4% (price as of 2026-08-20)
March 1, 2010	WST	F	6,655	$40.14	$267,132	53,211 Direct	-11.12%	Disposed	1663.7% (price as of 2026-08-20)
March 1, 2010	WST	M	12,532	$13.02	$163,167	59,866 Direct	+26.48%	Acquired	5337.4% (price as of 2026-08-20)
Feb. 24, 2010	WST	F	34	$38.65	$1,314	47,334 Direct	-0.07%	Disposed	1731.7% (price as of 2026-08-20)
Feb. 19, 2010	WST	A	537	$38.22	$20,524	47,368 Direct	+1.15%	Acquired	1752.3% (price as of 2026-08-20)
Feb. 19, 2010	WST	A	547	$38.22	$20,906	46,832 Direct	+1.18%	Acquired	1752.3% (price as of 2026-08-20)
Jan. 22, 2010	WST	F	80	$38.17	$3,054	46,285 Direct	-0.17%	Disposed	1754.7% (price as of 2026-08-20)
Jan. 7, 2010	WST	G	100	—	—	46,071 Direct	-0.22%	Disposed	(price as of 2026-08-20)
Dec. 23, 2009	WST	M	25,000	$13.02	$325,500	4,932 Direct	-83.52%	Disposed	5337.4% (price as of 2026-08-20)
Dec. 23, 2009	WST	F	15,031	$39.57	$594,777	46,114 Direct	-24.58%	Disposed	1689.1% (price as of 2026-08-20)
Dec. 23, 2009	WST	M	25,000	$13.02	$325,500	61,146 Direct	+69.16%	Acquired	5337.4% (price as of 2026-08-20)
Aug. 17, 2009	WST	S	4,500	$38.66	$173,970	36,095 Direct	-11.09%	Disposed	1731.2% (price as of 2026-08-20)
Aug. 12, 2009	WST	M	24,900	$13.02	$324,198	20,100 Direct	-55.33%	Disposed	5337.4% (price as of 2026-08-20)
Aug. 12, 2009	WST	F	13,347	$39.59	$528,408	40,595 Direct	-24.74%	Disposed	1688.2% (price as of 2026-08-20)
Aug. 12, 2009	WST	M	24,900	$13.02	$324,198	53,942 Direct	+85.74%	Acquired	5337.4% (price as of 2026-08-20)
March 5, 2009	WST	F	34	$29.28	$996	28,932 Direct	-0.12%	Disposed	2317.9% (price as of 2026-08-20)

Showing latest 100 of 263 transactions

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
March 1, 2016	WST	Stock Option (Right to Buy)	Common Stock (1,414)	$22.48	Feb. 27, 2018	1,414	Disposed
March 1, 2016	WST	Stock Option (Right to Buy)	Common Stock (7,000)	$16.05	Feb. 24, 2019	7,000	Disposed
Feb. 23, 2016	WST	Stock Option (Right to Buy)	Common Stock (6,504)	$59.64	Feb. 23, 2016	6,504	Acquired
Nov. 5, 2015	WST	Stock Option (Right to Buy)	Common Stock (10,000)	$22.48	Feb. 27, 2018	10,000	Disposed
May 29, 2015	WST	Stock Option (Right to Buy)	Common Stock (2,000)	$16.05	Feb. 24, 2019	2,000	Disposed
Feb. 27, 2015	WST	Stock Option (Right to Buy)	Common Stock (2,000)	$16.05	Feb. 24, 2019	2,000	Disposed
Feb. 26, 2015	WST	Stock Option (Right to Buy)	Common Stock (4,682)	$16.29	Feb. 24, 2016	4,682	Disposed
Feb. 23, 2015	WST	Stock Option (Right to Buy)	Common Stock (7,360)	$54.14	Feb. 23, 2025	7,360	Acquired
Nov. 11, 2014	WST	Stock Option (Right to Buy)	Common Stock (4,600)	$16.29	Feb. 24, 2016	4,600	Disposed
Aug. 20, 2014	WST	Stock Option (Right to Buy)	Common Stock (3,400)	$12.76	March 9, 2015	3,400	Disposed
Feb. 24, 2014	WST	Stock Option (Right to Buy)	Common Stock (7,232)	$47.34	Feb. 24, 2024	7,232	Acquired
Aug. 8, 2013	WST	Stock Option (Right to Buy)	Common Stock (3,000)	$25.53	March 9, 2015	3,000	Disposed
May 31, 2013	WST	Stock Option (Right to Buy)	Common Stock (2,300)	$25.53	March 9, 2015	2,300	Disposed
March 26, 2013	WST	Stock Option (Right to Buy)	Common Stock (807)	$64.38	March 26, 2023	807	Acquired
Feb. 28, 2013	WST	Stock Option (Right to Buy)	Common Stock (2,400)	$19.36	May 5, 2015	2,400	Disposed
Feb. 19, 2013	WST	Stock Option (Right to Buy)	Common Stock (5,707)	$59.11	Feb. 19, 2023	5,707	Acquired
May 31, 2012	WST	Stock Option (Right to Buy)	Common Stock (5,800)	$19.36	May 5, 2015	5,800	Disposed
Feb. 21, 2012	WST	Stock Option (Right to Buy)	Common Stock (8,197)	$42.44	Feb. 21, 2022	8,197	Acquired
Feb. 22, 2011	WST	Stock Option (Right to Buy)	Common Stock (7,420)	$40.85	Feb. 22, 2021	7,420	Acquired
March 22, 2010	WST	Stock Option (Right to Buy)	Common Stock (12,500)	$13.02	March 25, 2010	12,500	Disposed
March 22, 2010	WST	Stock Option (Right to Buy)	Common Stock (8,197)	$42.68	March 22, 2020	8,197	Acquired
March 1, 2010	WST	Stock Option (Right to Buy)	Common Stock (12,532)	$13.02	March 25, 2010	12,532	Disposed
Dec. 23, 2009	WST	Stock Option (Right to Buy)	Common Stock (25,000)	$13.02	March 25, 2010	25,000	Disposed
Aug. 12, 2009	WST	Stock Option (Right to Buy)	Common Stock (24,900)	$13.02	March 25, 2010	24,900	Disposed
Feb. 27, 2009	WST	Stock Option (Right to Buy)	Common Stock (10,000)	$13.02	March 25, 2010	10,000	Disposed
Feb. 24, 2009	WST	Stock Option (Right to Buy)	Common Stock (5,500)	$32.09	Feb. 24, 2019	5,500	Acquired
Aug. 15, 2008	WST	Stock Option (Right to Buy)	Common Stock (3,000)	$13.02	March 25, 2010	3,000	Disposed
Feb. 26, 2008	WST	Stock Option (Right to Buy)	Common Stock (5,958)	$41.70	Feb. 26, 2018	5,958	Acquired
May 31, 2007	WST	Stock Option (Right to Buy)	Common Stock (16,000)	$14.70	Aug. 5, 2007	16,000	Disposed
Nov. 7, 2006	WST	Stock Option (Right to Buy)	Common Stock (8,100)	$14.70	Aug. 5, 2007	8,100	Disposed
Nov. 7, 2006	WST	Stock Option (Right to Buy)	Common Stock (7,900)	$14.70	Aug. 5, 2007	7,900	Disposed
Feb. 24, 2006	WST	Stock Option (Right to Buy)	Common Stock (4,641)	$32.58	Feb. 24, 2016	4,641	Acquired
Feb. 24, 2006	WST	Stock Option (Right to Buy)	Common Stock (4,641)	$32.58	Feb. 24, 2016	4,641	Acquired
Feb. 24, 2006	WST	Stock Option (Right to Buy)	Common Stock (4,641)	$32.58	Feb. 24, 2016	4,641	Acquired
Feb. 24, 2006	WST	Stock Option (Right to Buy)	Common Stock (4,641)	$32.58	Feb. 24, 2016	4,641	Acquired
March 7, 2005	WST	Stock Option (Right to Buy)	Common Stock (7,000)	$25.53	March 9, 2015	7,000	Acquired
Jan. 3, 2005	WST	Stock Option (Right to Buy)	Common Stock (7,008)	$13.02	March 25, 2010	7,008	Disposed
July 6, 2004	WST	Stock Option (Right to Buy)	Common Stock (530)	$26.03	March 25, 2010	530	Disposed
July 6, 2004	WST	Stock Option (Right to Buy)	Common Stock (8,000)	$22.59	April 28, 2008	8,000	Disposed
May 5, 2004	WST	Stock Option (Right to Buy)	Common Stock (4,100)	$38.73	May 5, 2015	4,100	Acquired
May 5, 2004	WST	Stock Option (Right to Buy)	Common Stock (4,100)	$38.73	May 5, 2015	4,100	Acquired

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