ZENNER PATRICK J

Insider

First SEC filing: May 3, 2007 · Latest: May 3, 2007

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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

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 59 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

59 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 3, 2016	WST	A	704	—	—	51,372 Direct	+1.39%	Acquired	(price as of 2026-08-19)
May 3, 2016	WST	A	2,262	—	—	50,668 Direct	+4.67%	Acquired	(price as of 2026-08-19)
Feb. 23, 2016	WST	M	12,800	$18.05	$231,040	0 Direct	-100.00%	Disposed	1868.3% (price as of 2026-08-19)
Feb. 23, 2016	WST	S	12,800	$59.39	$760,192	48,322 Direct	-20.94%	Disposed	498.2% (price as of 2026-08-19)
Feb. 23, 2016	WST	M	12,800	$18.05	$231,040	61,122 Direct	+26.49%	Acquired	1868.3% (price as of 2026-08-19)
July 1, 2015	WST	A	714	—	—	48,097 Direct	+1.51%	Acquired	(price as of 2026-08-19)
May 5, 2015	WST	A	2,448	—	—	47,383 Direct	+5.45%	Acquired	(price as of 2026-08-19)
Feb. 23, 2015	WST	M	6,400	$14.12	$90,368	0 Direct	-100.00%	Disposed	2416.2% (price as of 2026-08-19)
Feb. 23, 2015	WST	M	6,400	$13.18	$84,352	0 Direct	-100.00%	Disposed	2595.6% (price as of 2026-08-19)
Feb. 23, 2015	WST	S	12,800	$53.69	$687,232	44,855 Direct	-22.20%	Disposed	561.7% (price as of 2026-08-19)
Feb. 23, 2015	WST	M	6,400	$13.18	$84,352	57,655 Direct	+12.49%	Acquired	2595.6% (price as of 2026-08-19)
Feb. 23, 2015	WST	M	6,400	$14.12	$90,368	51,255 Direct	+14.27%	Acquired	2416.2% (price as of 2026-08-19)
May 6, 2014	WST	A	3,016	—	—	44,610 Direct	+7.25%	Acquired	(price as of 2026-08-19)
Feb. 26, 2014	WST	M	12,800	$9.68	$123,904	0 Direct	-100.00%	Disposed	3570.3% (price as of 2026-08-19)
Feb. 26, 2014	WST	S	12,800	$46.12	$590,336	41,522 Direct	-23.56%	Disposed	670.3% (price as of 2026-08-19)
Feb. 26, 2014	WST	M	12,800	$9.68	$123,904	54,322 Direct	+30.83%	Acquired	3570.3% (price as of 2026-08-19)
May 7, 2013	WST	A	2,003	—	—	20,643 Direct	+10.75%	Acquired	(price as of 2026-08-19)
Nov. 13, 2012	WST	M	3,250	$11.60	$37,700	0 Direct	-100.00%	Disposed	6025.6% (price as of 2026-08-19)
Nov. 13, 2012	WST	S	3,250	$53.56	$174,070	18,544 Direct	-14.91%	Disposed	1226.7% (price as of 2026-08-19)
Nov. 13, 2012	WST	M	3,250	$11.60	$37,700	21,794 Direct	+17.53%	Acquired	6025.6% (price as of 2026-08-19)
July 11, 2012	WST	M	1,500	$12.86	$19,290	0 Direct	-100.00%	Disposed	5425.4% (price as of 2026-08-19)
July 11, 2012	WST	M	1,500	$12.86	$19,290	18,492 Direct	+8.83%	Acquired	5425.4% (price as of 2026-08-19)
May 1, 2012	WST	A	2,459	—	—	16,944 Direct	+16.98%	Acquired	(price as of 2026-08-19)
May 3, 2011	WST	A	2,325	—	—	14,308 Direct	+19.40%	Acquired	(price as of 2026-08-19)
Aug. 4, 2010	WST	A	12	$35.58	$427	11,874 Direct	+0.10%	Acquired	1897.1% (price as of 2026-08-19)
May 19, 2010	GERN	A	11,250	—	—	11,250 Direct	—	Acquired	(price as of 2026-08-19)
May 19, 2010	GERN	D	8,436	—	—	73,710 Direct	-10.27%	Disposed	(price as of 2026-08-19)
May 19, 2010	GERN	A	5,625	—	—	82,146 Direct	+7.35%	Acquired	(price as of 2026-08-19)
May 4, 2010	WST	A	2,617	—	—	11,839 Direct	+28.38%	Acquired	(price as of 2026-08-19)
May 29, 2009	GERN	A	11,250	$6.52	$73,350	193,750 Direct	+6.16%	Acquired	-74.4% (price as of 2026-08-19)
May 29, 2009	GERN	A	20,000	—	—	76,521 Direct	+35.39%	Acquired	(price as of 2026-08-19)
May 29, 2009	GERN	A	5,625	—	—	56,521 Direct	+11.05%	Acquired	(price as of 2026-08-19)
May 5, 2009	WST	A	2,100	—	—	9,131 Direct	+29.87%	Acquired	(price as of 2026-08-19)
Feb. 11, 2009	GERN	A	2,500	$7.34	$18,350	182,500 Direct	+1.39%	Acquired	-77.3% (price as of 2026-08-19)
May 28, 2008	GERN	A	5,625	—	—	50,896 Direct	+12.43%	Acquired	(price as of 2026-08-19)
May 28, 2008	GERN	A	11,250	$3.97	$44,662	180,000 Direct	+6.67%	Acquired	-58.0% (price as of 2026-08-19)
May 13, 2008	XOMA	A	25,000	—	—	25,000 Direct	—	Acquired
May 6, 2008	WST	A	2,100	—	—	6,971 Direct	+43.11%	Acquired	(price as of 2026-08-19)
Feb. 21, 2008	XOMA	A	67,300	—	—	67,300 Direct	—	Acquired
Feb. 21, 2008	XOMA	A	67,300	—	—	67,300 Direct	—	Acquired
May 23, 2007	GERN	A	11,250	$9.32	$104,850	168,750 Direct	+7.14%	Acquired	-82.1% (price as of 2026-08-19)
May 23, 2007	GERN	A	5,625	—	—	45,271 Direct	+14.19%	Acquired	(price as of 2026-08-19)
May 23, 2007	GERN	A	17,500	—	—	39,646 Direct	+79.02%	Acquired	(price as of 2026-08-19)
May 23, 2007	GERN	A	2,146	—	—	22,146 Direct	+10.73%	Acquired	(price as of 2026-08-19)
May 22, 2007	XOMA	A	12,000	—	—	12,000 Direct	—	Acquired
May 1, 2007	WST	A	2,100	—	—	4,850 Direct	+76.36%	Acquired	(price as of 2026-08-19)
March 8, 2007	WST	M	2,750	$11.60	$31,900	3,250 Direct	-45.83%	Disposed	6025.6% (price as of 2026-08-19)
March 8, 2007	WST	M	2,750	$11.60	$31,900	2,750 Direct	—	Acquired	6025.6% (price as of 2026-08-19)
Jan. 3, 2007	GERN	A	20,000	—	—	20,000 Direct	—	Acquired	(price as of 2026-08-19)
May 24, 2006	GERN	A	22,500	$6.63	$149,175	157,500 Direct	+16.67%	Acquired	-74.9% (price as of 2026-08-19)
May 23, 2006	XOMA	A	10,000	—	—	10,000 Direct	—	Acquired
May 2, 2006	WST	A	6,400	$36.10	$231,040	6,400 Direct	—	Acquired	1868.3% (price as of 2026-08-19)
May 2, 2006	WST	A	2,000	—	—	7,139 Direct	+38.92%	Acquired	(price as of 2026-08-19)
June 28, 2005	WST	A	1,000	—	—	5,066 Direct	+24.59%	Acquired	(price as of 2026-08-19)
June 28, 2005	WST	A	3,200	$28.25	$90,400	3,200 Direct	—	Acquired	2415.3% (price as of 2026-08-19)
May 19, 2005	XOMA	A	10,000	—	—	10,000 Direct	—	Acquired
May 6, 2005	GERN	A	22,500	$6.40	$144,000	135,000 Direct	+20.00%	Acquired	-74.0% (price as of 2026-08-19)
April 27, 2005	WST	A	3,200	$26.37	$84,384	3,200 Direct	—	Acquired	2594.6% (price as of 2026-08-19)
April 27, 2005	WST	A	1,000	—	—	4,066 Direct	+32.62%	Acquired	(price as of 2026-08-19)
May 27, 2004	GERN	A	22,500	$7.56	$170,100	112,500 Direct	+25.00%	Acquired	-78.0% (price as of 2026-08-19)
May 19, 2004	XOMA	A	10,000	—	—	10,000 Direct	—	Acquired
May 5, 2004	WST	A	3,200	$38.73	$123,936	3,200 Direct	—	Acquired	3569.4% (price as of 2026-08-19)
May 5, 2004	WST	A	1,000	—	—	1,509 Direct	+196.46%	Acquired	(price as of 2026-08-19)

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
Feb. 23, 2016	WST	Stock Option (Right to Buy)	Common Stock (12,800)	$18.05	May 2, 2016	12,800	Disposed
Feb. 23, 2015	WST	Stock Option (Right to Buy)	Common Stock (6,400)	$14.12	June 28, 2015	6,400	Disposed
Feb. 23, 2015	WST	Stock Option (Right to Buy)	Common Stock (6,400)	$13.18	April 27, 2015	6,400	Disposed
Feb. 26, 2014	WST	Stock Option (Right to Buy)	Common Stock (12,800)	$9.68	May 5, 2015	12,800	Disposed
Nov. 13, 2012	WST	Stock Option (Right to Buy)	Common Stock (3,250)	$11.60	April 29, 2013	3,250	Disposed
July 11, 2012	WST	Stock Option (Right to Buy)	Common Stock (1,500)	$12.86	July 30, 2012	1,500	Disposed
May 19, 2010	GERN	Stock Option (right to buy)	Common Stock (11,250)	$5.29	May 19, 2012	11,250	Acquired
May 29, 2009	GERN	Stock Option (right to buy)	Common Stock (11,250)	$6.52	May 29, 2019	11,250	Acquired
Feb. 11, 2009	GERN	Stock Option (right to buy)	Common Stock (2,500)	$7.34	Feb. 11, 2019	2,500	Acquired
May 28, 2008	GERN	Stock Option (right to buy)	Common Stock (11,250)	$3.97	May 28, 2018	11,250	Acquired
May 13, 2008	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (25,000)	$2.10	May 13, 2018	25,000	Acquired
Feb. 21, 2008	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (67,300)	$2.71	Feb. 21, 2018	67,300	Acquired
Feb. 21, 2008	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (67,300)	$2.71	Feb. 21, 2018	67,300	Acquired
May 23, 2007	GERN	Stock Option (right to buy)	Common Stock (11,250)	$9.32	May 23, 2017	11,250	Acquired
May 22, 2007	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (12,000)	$3.42	May 22, 2017	12,000	Acquired
March 8, 2007	WST	Stock Option (Right to Buy)	Common Stock (2,750)	$11.60	April 29, 2013	2,750	Disposed
May 24, 2006	GERN	Common Stock	Common Stock (22,500)	$6.63	May 24, 2016	22,500	Acquired
May 23, 2006	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (10,000)	$1.70	May 23, 2016	10,000	Acquired
May 2, 2006	WST	Stock Option (Right to Buy)	Common Stock (6,400)	$36.10	May 2, 2016	6,400	Acquired
May 2, 2006	WST	Phantom Stock Unit	Common Stock (2,000)	—	—	2,000	Acquired
June 28, 2005	WST	Phantom Stock Unit	Common Stock (1,000)	$0.00	—	1,000	Acquired
June 28, 2005	WST	Stock Option (Right to Buy)	Common Stock (3,200)	$28.25	June 28, 2015	3,200	Acquired
May 19, 2005	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (10,000)	$1.41	May 19, 2015	10,000	Acquired
May 6, 2005	GERN	Stock Option (right to buy)	Common Stock (22,500)	$6.40	May 6, 2015	22,500	Acquired
April 27, 2005	WST	Stock Option (Right to Buy)	Common Stock (3,200)	$26.37	April 27, 2015	3,200	Acquired
April 27, 2005	WST	Phantom Stock Unit	Common Stock (1,000)	$0.00	—	1,000	Acquired
May 27, 2004	GERN	Stock Option (right to buy)	Common Stock (22,500)	$7.56	May 27, 2014	22,500	Acquired
May 19, 2004	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (10,000)	$3.84	May 19, 2014	10,000	Acquired
May 5, 2004	WST	Stock Option (Right to Buy)	Common Stock (3,200)	$38.73	May 5, 2015	3,200	Acquired
May 5, 2004	WST	Phantom Stock Unit	Common Stock (1,000)	$0.00	—	1,000	Acquired

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