David N Chichester

Insider

First SEC filing: March 2, 2006 · Latest: March 2, 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

CENTA selling Dec. 8, 2016

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 76 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

76 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Dec. 8, 2016	CENTA	G	1,625	—	—	14,797 Direct	-9.90%	Disposed	(price as of 2026-08-20)
Dec. 8, 2016	CENTA	S	7,726	$30.82	$238,115	16,422 Direct	-31.99%	Disposed	54.1% (price as of 2026-08-20)
Dec. 6, 2016	CENTA	M	4,848	—	—	9,698 Direct	-33.33%	Disposed	(price as of 2026-08-20)
Dec. 6, 2016	CENTA	M	8,500	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 6, 2016	CENTA	F	2,187	$30.49	$66,682	24,148 Direct	-8.30%	Disposed	55.7% (price as of 2026-08-20)
Dec. 6, 2016	CENTA	M	4,848	$13.75	$66,660	26,335 Direct	+22.56%	Acquired	245.4% (price as of 2026-08-20)
Dec. 6, 2016	CENTA	F	3,435	$30.49	$104,733	21,487 Direct	-13.78%	Disposed	55.7% (price as of 2026-08-20)
Dec. 6, 2016	CENTA	M	8,500	$12.32	$104,720	24,922 Direct	+51.76%	Acquired	285.5% (price as of 2026-08-20)
Aug. 23, 2016	CENTA	S	12,553	$24.56	$308,302	16,422 Direct	-43.32%	Disposed	93.4% (price as of 2026-08-20)
Aug. 22, 2016	CENTA	M	4,000	—	—	8,500 Direct	-32.00%	Disposed	(price as of 2026-08-20)
Aug. 22, 2016	CENTA	M	6,761	—	—	6,762 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Aug. 22, 2016	CENTA	M	9,247	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 22, 2016	CENTA	F	2,012	$24.50	$49,294	28,975 Direct	-6.49%	Disposed	93.8% (price as of 2026-08-20)
Aug. 22, 2016	CENTA	M	4,000	$12.32	$49,280	30,987 Direct	+14.82%	Acquired	285.5% (price as of 2026-08-20)
Aug. 22, 2016	CENTA	F	2,721	$24.50	$66,664	26,987 Direct	-9.16%	Disposed	93.8% (price as of 2026-08-20)
Aug. 22, 2016	CENTA	M	6,761	$9.86	$66,663	29,708 Direct	+29.46%	Acquired	381.6% (price as of 2026-08-20)
Aug. 22, 2016	CENTA	F	2,722	$24.50	$66,689	22,947 Direct	-10.60%	Disposed	93.8% (price as of 2026-08-20)
Aug. 22, 2016	CENTA	M	9,247	$7.21	$66,671	25,669 Direct	+56.31%	Acquired	558.6% (price as of 2026-08-20)
Aug. 17, 2016	CENTA	G	4,063	—	—	16,422 Direct	-19.83%	Disposed	(price as of 2026-08-20)
May 5, 2016	CENTA	S 10b5-1	10,000	$17.00	$170,000	20,485 Direct	-32.80%	Disposed	179.3% (price as of 2026-08-20)
March 18, 2016	CENTA	S 10b5-1	10,000	$16.00	$160,000	30,485 Direct	-24.70%	Disposed	196.8% (price as of 2026-08-20)
Feb. 29, 2016	CENTA	S	5,000	$13.67	$68,350	40,485 Direct	-10.99%	Disposed	247.4% (price as of 2026-08-20)
Feb. 9, 2016	CENTA	A	14,546	—	—	14,546 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 9, 2016	CENTA	A	1,455	—	—	45,485 Direct	+3.30%	Acquired	(price as of 2026-08-20)
Dec. 22, 2015	CENTA	S	3,000	$14.30	$42,900	44,030 Direct	-6.38%	Disposed	232.1% (price as of 2026-08-20)
Dec. 15, 2015	CENTA	S	5,000	$15.30	$76,500	47,030 Direct	-9.61%	Disposed	210.4% (price as of 2026-08-20)
Dec. 14, 2015	CENTA	S	5,000	$15.02	$75,100	52,030 Direct	-8.77%	Disposed	216.2% (price as of 2026-08-20)
Dec. 9, 2015	CENTA	M	6,761	—	—	13,523 Direct	-33.33%	Disposed	(price as of 2026-08-20)
Dec. 9, 2015	CENTA	M	18,493	—	—	9,247 Direct	-66.67%	Disposed	(price as of 2026-08-20)
Dec. 9, 2015	CENTA	M	22,397	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 9, 2015	CENTA	F	4,688	$17.07	$80,024	57,030 Direct	-7.60%	Disposed	178.2% (price as of 2026-08-20)
Dec. 9, 2015	CENTA	M	6,761	$9.86	$66,663	61,718 Direct	+12.30%	Acquired	381.6% (price as of 2026-08-20)
Dec. 9, 2015	CENTA	F	10,734	$17.07	$183,229	54,957 Direct	-16.34%	Disposed	178.2% (price as of 2026-08-20)
Dec. 9, 2015	CENTA	M	18,493	$7.21	$133,335	65,691 Direct	+39.18%	Acquired	558.6% (price as of 2026-08-20)
Dec. 9, 2015	CENTA	F	14,639	$17.07	$249,888	47,198 Direct	-23.67%	Disposed	178.2% (price as of 2026-08-20)
Dec. 9, 2015	CENTA	M	22,397	$8.93	$200,005	61,837 Direct	+56.79%	Acquired	431.8% (price as of 2026-08-20)
Nov. 17, 2015	CENTA	A	12,500	—	—	12,500 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 26, 2015	CENTA	G	4,049	—	—	39,440 Direct	-9.31%	Disposed	(price as of 2026-08-20)
Aug. 17, 2015	CENTA	A	12,500	—	—	12,500 Direct	—	Acquired	(price as of 2026-08-20)
March 19, 2015	CENTA	M	18,271	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 19, 2015	CENTA	S 10b5-1	18,271	$10.83	$197,875	43,489 Direct	-29.58%	Disposed	338.5% (price as of 2026-08-20)
March 19, 2015	CENTA	M	18,271	$9.34	$170,651	61,760 Direct	+42.01%	Acquired	408.4% (price as of 2026-08-20)
March 18, 2015	CENTA	M	3,120	—	—	18,271 Direct	-14.59%	Disposed	(price as of 2026-08-20)
March 18, 2015	CENTA	S 10b5-1	3,120	$10.75	$33,540	43,489 Direct	-6.69%	Disposed	341.7% (price as of 2026-08-20)
March 18, 2015	CENTA	M	3,120	$9.34	$29,141	46,609 Direct	+7.17%	Acquired	408.4% (price as of 2026-08-20)
March 17, 2015	CENTA	M	23	—	—	21,391 Direct	-0.11%	Disposed	(price as of 2026-08-20)
March 17, 2015	CENTA	S 10b5-1	23	$10.75	$247	43,489 Direct	-0.05%	Disposed	341.7% (price as of 2026-08-20)
March 17, 2015	CENTA	M	23	$9.34	$215	43,512 Direct	+0.05%	Acquired	408.4% (price as of 2026-08-20)
Feb. 10, 2015	CENTA	A	20,284	—	—	20,284 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 10, 2015	CENTA	A	2,029	—	—	43,489 Direct	+4.89%	Acquired	(price as of 2026-08-20)
Feb. 10, 2014	CENTA	A	27,740	—	—	27,740 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 10, 2014	CENTA	A	2,774	—	—	41,460 Direct	+7.17%	Acquired	(price as of 2026-08-20)
Feb. 11, 2013	CENTA	A	22,397	—	—	22,397 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 11, 2013	CENTA	A	2,240	—	—	38,686 Direct	+6.15%	Acquired	(price as of 2026-08-20)
April 12, 2012	CENTA	M	9,882	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 12, 2012	CENTA	S 10b5-1	9,882	$10.44	$103,168	36,446 Direct	-21.33%	Disposed	354.9% (price as of 2026-08-20)
April 12, 2012	CENTA	M	9,882	$6.54	$64,628	46,328 Direct	+27.11%	Acquired	626.1% (price as of 2026-08-20)
April 11, 2012	CENTA	M	700	—	—	9,882 Direct	-6.62%	Disposed	(price as of 2026-08-20)
April 11, 2012	CENTA	S 10b5-1	700	$10.25	$7,175	36,446 Direct	-1.88%	Disposed	363.3% (price as of 2026-08-20)
April 11, 2012	CENTA	M	700	$6.54	$4,578	37,146 Direct	+1.92%	Acquired	626.1% (price as of 2026-08-20)
April 5, 2012	CENTA	M	10,000	—	—	10,582 Direct	-48.59%	Disposed	(price as of 2026-08-20)
April 5, 2012	CENTA	S 10b5-1	10,000	$10.03	$100,300	36,446 Direct	-21.53%	Disposed	373.5% (price as of 2026-08-20)
April 5, 2012	CENTA	M	10,000	$6.54	$65,400	46,446 Direct	+27.44%	Acquired	626.1% (price as of 2026-08-20)
April 3, 2012	CENTA	M	5,715	—	—	20,582 Direct	-21.73%	Disposed	(price as of 2026-08-20)
April 3, 2012	CENTA	S 10b5-1	5,715	$9.75	$55,721	36,446 Direct	-13.56%	Disposed	387.1% (price as of 2026-08-20)
April 3, 2012	CENTA	M	5,715	$6.54	$37,376	42,161 Direct	+15.68%	Acquired	626.1% (price as of 2026-08-20)
April 2, 2012	CENTA	M	3,685	—	—	26,297 Direct	-12.29%	Disposed	(price as of 2026-08-20)
April 2, 2012	CENTA	S 10b5-1	3,685	$9.75	$35,929	36,446 Direct	-9.18%	Disposed	387.1% (price as of 2026-08-20)
April 2, 2012	CENTA	M	3,685	$6.54	$24,100	40,131 Direct	+10.11%	Acquired	626.1% (price as of 2026-08-20)
Feb. 27, 2012	CENTA	M	600	—	—	29,982 Direct	-1.96%	Disposed	(price as of 2026-08-20)
Feb. 27, 2012	CENTA	S 10b5-1	600	$9.75	$5,850	36,446 Direct	-1.62%	Disposed	387.1% (price as of 2026-08-20)
Feb. 27, 2012	CENTA	M	600	$6.54	$3,924	37,046 Direct	+1.65%	Acquired	626.1% (price as of 2026-08-20)
Feb. 13, 2012	CENTA	A	21,414	—	—	21,414 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 13, 2012	CENTA	A	2,142	—	—	36,446 Direct	+6.24%	Acquired	(price as of 2026-08-20)
May 27, 2011	CENTA	M	8,747	—	—	18,894 Direct	-31.65%	Disposed	(price as of 2026-08-20)
May 27, 2011	CENTA	S	8,747	$9.94	$86,945	34,304 Direct	-20.32%	Disposed	377.7% (price as of 2026-08-20)
May 27, 2011	CENTA	M	8,747	$4.94	$43,210	43,051 Direct	+25.50%	Acquired	861.3% (price as of 2026-08-20)
May 26, 2011	CENTA	M	700	—	—	27,641 Direct	-2.47%	Disposed	(price as of 2026-08-20)
May 26, 2011	CENTA	S	700	$9.90	$6,930	34,304 Direct	-2.00%	Disposed	379.7% (price as of 2026-08-20)
May 26, 2011	CENTA	M	700	$4.94	$3,458	35,004 Direct	+2.04%	Acquired	861.3% (price as of 2026-08-20)
Feb. 14, 2011	CENTA	A	21,165	—	—	21,165 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 14, 2011	CENTA	A	2,117	—	—	34,304 Direct	+6.58%	Acquired	(price as of 2026-08-20)
Feb. 8, 2010	CENTA	A	22,076	—	—	22,076 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 8, 2010	CENTA	A	2,208	—	—	32,187 Direct	+7.37%	Acquired	(price as of 2026-08-20)
Aug. 28, 2009	CENTA	S 10b5-1	500	$11.92	$5,960	29,979 Direct	-1.64%	Disposed	298.4% (price as of 2026-08-20)
Aug. 28, 2009	CENTA	S 10b5-1	900	$11.80	$10,620	30,479 Direct	-2.87%	Disposed	302.4% (price as of 2026-08-20)
Aug. 26, 2009	CENTA	M	18,894	—	—	9,447 Direct	-66.67%	Disposed	(price as of 2026-08-20)
Aug. 26, 2009	CENTA	F	7,877	$11.85	$93,342	31,379 Direct	-20.07%	Disposed	300.7% (price as of 2026-08-20)
Aug. 26, 2009	CENTA	M 10b5-1	18,894	$4.94	$93,336	39,256 Direct	+92.79%	Acquired	861.3% (price as of 2026-08-20)
Feb. 9, 2009	CENTA	A	30,582	—	—	30,582 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 9, 2009	CENTA	A	3,059	—	—	20,362 Direct	+17.68%	Acquired	(price as of 2026-08-20)
Feb. 11, 2008	CENTA	A	28,341	—	—	28,341 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 11, 2008	CENTA	A	3,037	—	—	17,303 Direct	+21.29%	Acquired	(price as of 2026-08-20)
Dec. 7, 2007	CENTA	P	10,000	$5.67	$56,700	14,266 Direct	+234.41%	Acquired	737.5% (price as of 2026-08-20)
May 31, 2007	CENTA	M	5,924	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 31, 2007	CENTA	F	4,984	$13.35	$66,536	4,266 Direct	-53.88%	Disposed	255.7% (price as of 2026-08-20)
May 31, 2007	CENTA	M	5,924	$11.23	$66,527	9,250 Direct	+178.11%	Acquired	322.9% (price as of 2026-08-20)
May 30, 2007	CENTA	M	2,962	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 30, 2007	CENTA	S	179	$14.19	$2,540	2,804 Direct	-6.00%	Disposed	234.7% (price as of 2026-08-20)
May 30, 2007	CENTA	S	2,783	$14.19	$39,491	2,983 Direct	-48.27%	Disposed	234.7% (price as of 2026-08-20)

Showing latest 100 of 118 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
Dec. 6, 2016	CENTA	Stock Option (Right to Buy)	Class A Common Stock (4,848)	$13.75	Aug. 9, 2019	4,848	Disposed
Dec. 6, 2016	CENTA	Stock Option (Right to Buy)	Class A Common Stock (8,500)	$12.32	Aug. 17, 2020	8,500	Disposed
Aug. 22, 2016	CENTA	Stock Option (Right to Buy)	Class A Common Stock (4,000)	$12.32	Aug. 17, 2020	4,000	Disposed
Aug. 22, 2016	CENTA	Stock Option (Right to Buy)	Class A Common Stock (6,761)	$9.86	Aug. 10, 2018	6,761	Disposed
Aug. 22, 2016	CENTA	Stock Option (Right to Buy)	Class A Common Stock (9,247)	$7.21	Aug. 10, 2017	9,247	Disposed
Feb. 9, 2016	CENTA	Stock Option (right to buy)	Class A Common Stock (14,546)	$13.75	Aug. 9, 2019	14,546	Acquired
Dec. 9, 2015	CENTA	Stock Option (Right to Buy)	Class A Common Stock (6,761)	$9.86	Aug. 10, 2018	6,761	Disposed
Dec. 9, 2015	CENTA	Stock Option (Right to Buy)	Class A Common Stock (18,493)	$7.21	Aug. 10, 2017	18,493	Disposed
Dec. 9, 2015	CENTA	Stock Option (Right to Buy)	Class A Common Stock (22,397)	$8.93	Aug. 11, 2016	22,397	Disposed
Nov. 17, 2015	CENTA	Stock Option (Right to Buy)	Class A Common Stock (12,500)	$15.56	Nov. 17, 2020	12,500	Acquired
Aug. 17, 2015	CENTA	Stock Option (Right to Buy)	Class A Common Stock (12,500)	$12.32	Aug. 17, 2020	12,500	Acquired
March 19, 2015	CENTA	Director Stock Option (right to buy)	Class A Common Stock (18,271)	$9.34	Aug. 13, 2015	18,271	Disposed
March 18, 2015	CENTA	Director Stock Option (right to buy)	Class A Common Stock (3,120)	$9.34	Aug. 13, 2015	3,120	Disposed
March 17, 2015	CENTA	Director Stock Option (right to buy)	Class A Common Stock (23)	$9.34	Aug. 13, 2015	23	Disposed
Feb. 10, 2015	CENTA	Director Stock Option (right to buy)	Class A Common Stock (20,284)	$9.86	Aug. 10, 2018	20,284	Acquired
Feb. 10, 2014	CENTA	Director Stock Option (right to buy)	Class A Common Stock (27,740)	$7.21	Aug. 10, 2017	27,740	Acquired
Feb. 11, 2013	CENTA	Director Stock Option (right to buy)	Class A Common Stock (22,397)	$8.93	Aug. 11, 2016	22,397	Acquired
April 12, 2012	CENTA	Director Stock Option (right to buy)	Class A Common Stock (9,882)	$6.54	Aug. 9, 2012	9,882	Disposed
April 11, 2012	CENTA	Director Stock Option (right to buy)	Class A Common Stock (700)	$6.54	Aug. 9, 2012	700	Disposed
April 5, 2012	CENTA	Director Stock Option (right to buy)	Class A Common Stock (10,000)	$6.54	Aug. 9, 2012	10,000	Disposed
April 3, 2012	CENTA	Director Stock Option (right to buy)	Class A Common Stock (5,715)	$6.54	Aug. 9, 2012	5,715	Disposed
April 2, 2012	CENTA	Director Stock Option (right to buy)	Class A Common Stock (3,685)	$6.54	Aug. 9, 2012	3,685	Disposed
Feb. 27, 2012	CENTA	Director Stock Option (right to buy)	Class A Common Stock (600)	$6.54	Aug. 9, 2012	600	Disposed
Feb. 13, 2012	CENTA	Director Stock Option (right to buy)	Class A Common Stock (21,414)	$9.34	Aug. 13, 2015	21,414	Acquired
May 27, 2011	CENTA	Director Stock Option (Right to Buy)	Class A Common Stock (8,747)	$4.94	Aug. 11, 2011	8,747	Disposed
May 26, 2011	CENTA	Director Stock Option (Right to Buy)	Class A Common Stock (700)	$4.94	Aug. 11, 2011	700	Disposed
Feb. 14, 2011	CENTA	Director Stock Option (right to buy)	Class A Common Stock (21,165)	$9.45	Aug. 14, 2014	21,165	Acquired
Feb. 8, 2010	CENTA	Director Stock Option (right to buy)	Class A Common Stock (22,076)	$9.06	Aug. 8, 2013	22,076	Acquired
Aug. 26, 2009	CENTA	Director Stock Option (right to buy)	Class A Common Stock (18,894)	$4.94	Aug. 11, 2011	18,894	Disposed
Feb. 9, 2009	CENTA	Director Stock Option (right to buy)	Class A Common Stock (30,582)	$6.54	Aug. 9, 2012	30,582	Acquired
Feb. 11, 2008	CENTA	Director Stock Option (right to buy)	Class A Common Stock (28,341)	$4.94	Aug. 11, 2011	28,341	Acquired
May 31, 2007	CENTA	Director Stock Option (right to buy)	Class A Common Stock (5,924)	$11.23	Aug. 9, 2007	5,924	Disposed
May 30, 2007	CENTA	Director Stock Option (right to buy)	Common Stock (2,962)	$11.30	Aug. 9, 2007	2,962	Disposed
Feb. 12, 2007	CENTA	Director Stock Option (right to buy)	Class A Common Stock (11,024)	$12.70	Aug. 12, 2010	11,024	Acquired
Feb. 28, 2006	CENTA	Stock Option (right to buy)	Common Stock (4,547)	$21.99	Aug. 10, 2006	4,547	Disposed
Feb. 13, 2006	CENTA	Director Stock Option (right to buy)	Common Stock (2,896)	$48.35	Aug. 13, 2009	2,896	Acquired
May 31, 2005	CENTA	Stock Option (right to buy)	Common Stock (1,237)	$13.48	Feb. 28, 2006	1,237	Disposed
Feb. 7, 2005	CENTA	Director Stock Option (right to buy)	Common Stock (2,295)	$43.58	Aug. 7, 2008	2,295	Acquired
May 28, 2004	CENTA	Stock Option (right to buy)	Common Stock (2,472)	$13.48	Feb. 28, 2006	2,472	Disposed
Feb. 9, 2004	CENTA	Director Stock Option (right to buy)	Common Stock (2,962)	$33.76	Aug. 9, 2007	2,962	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.

CENTA

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2016	$201,385	—	—	—	—	—	$49,601	$346,264
2015	$42,308	—	—	—	—	—	$71,500	$197,611

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