Michael A Reed

Insider

First SEC filing: Nov. 8, 2007 · Latest: Nov. 8, 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.
Initial holdings The stakes this person held when they first started reporting.
Compensation Executive pay disclosed in company proxy statements.

Insider at

CENTA selling May 15, 2018

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 89 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

89 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 21, 2019	CENTA	F	4,254	$25.33	$107,754	109,121 Direct	-3.75%	Disposed	87.5% (price as of 2026-08-20)
May 15, 2018	CENTA	S	10,033	$37.60	$377,241	113,375 Direct	-8.13%	Disposed	26.3% (price as of 2026-08-20)
May 11, 2018	CENTA	S	16,365	$36.50	$597,322	123,408 Direct	-11.71%	Disposed	30.1% (price as of 2026-08-20)
May 10, 2018	CENTA	M	12,500	—	—	25,000 Direct	-33.33%	Disposed	(price as of 2026-08-20)
May 10, 2018	CENTA	M	12,500	—	—	12,500 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 10, 2018	CENTA	F	7,818	$36.15	$282,621	139,773 Direct	-5.30%	Disposed	31.4% (price as of 2026-08-20)
May 10, 2018	CENTA	M	12,500	$13.82	$172,750	147,591 Direct	+9.25%	Acquired	243.6% (price as of 2026-08-20)
May 10, 2018	CENTA	F	7,149	$36.15	$258,436	135,091 Direct	-5.03%	Disposed	31.4% (price as of 2026-08-20)
May 10, 2018	CENTA	M	12,500	$10.63	$132,875	142,240 Direct	+9.63%	Acquired	346.7% (price as of 2026-08-20)
March 31, 2018	CENTA	F	1,015	$38.90	$39,484	129,740 Direct	-0.78%	Disposed	22.1% (price as of 2026-08-20)
March 21, 2018	CENTA	F	4,253	$39.32	$167,228	130,755 Direct	-3.15%	Disposed	20.8% (price as of 2026-08-20)
Aug. 7, 2017	CENTA	S	15,016	$34.31	$515,199	135,008 Direct	-10.01%	Disposed	38.4% (price as of 2026-08-20)
May 12, 2017	CENTA	M	6,250	—	—	37,500 Direct	-14.29%	Disposed	(price as of 2026-08-20)
May 12, 2017	CENTA	M	6,250	—	—	25,000 Direct	-20.00%	Disposed	(price as of 2026-08-20)
May 12, 2017	CENTA	M	6,250	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 12, 2017	CENTA	S	7,550	$33.00	$249,150	150,024 Direct	-4.79%	Disposed	43.9% (price as of 2026-08-20)
May 12, 2017	CENTA	F	4,127	$33.33	$137,553	157,574 Direct	-2.55%	Disposed	42.5% (price as of 2026-08-20)
May 12, 2017	CENTA	M	6,250	$13.82	$86,375	161,701 Direct	+4.02%	Acquired	243.6% (price as of 2026-08-20)
May 12, 2017	CENTA	F	3,780	$33.33	$125,987	155,451 Direct	-2.37%	Disposed	42.5% (price as of 2026-08-20)
May 12, 2017	CENTA	M	6,250	$10.63	$66,438	159,231 Direct	+4.09%	Acquired	346.7% (price as of 2026-08-20)
May 12, 2017	CENTA	F	3,323	$33.33	$110,756	152,981 Direct	-2.13%	Disposed	42.5% (price as of 2026-08-20)
May 12, 2017	CENTA	M	6,250	$6.43	$40,188	156,304 Direct	+4.17%	Acquired	638.5% (price as of 2026-08-20)
May 11, 2017	CENTA	M	6,250	—	—	43,750 Direct	-12.50%	Disposed	(price as of 2026-08-20)
May 11, 2017	CENTA	M	6,250	—	—	31,250 Direct	-16.67%	Disposed	(price as of 2026-08-20)
May 11, 2017	CENTA	M	6,250	—	—	6,250 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 11, 2017	CENTA	F	4,138	$33.10	$136,968	150,054 Direct	-2.68%	Disposed	43.5% (price as of 2026-08-20)
May 11, 2017	CENTA	M	6,250	$13.82	$86,375	154,192 Direct	+4.22%	Acquired	243.6% (price as of 2026-08-20)
May 11, 2017	CENTA	F	3,788	$33.10	$125,383	147,942 Direct	-2.50%	Disposed	43.5% (price as of 2026-08-20)
May 11, 2017	CENTA	M	6,250	$10.63	$66,438	151,730 Direct	+4.30%	Acquired	346.7% (price as of 2026-08-20)
May 11, 2017	CENTA	F	3,328	$33.10	$110,157	145,480 Direct	-2.24%	Disposed	43.5% (price as of 2026-08-20)
May 11, 2017	CENTA	M	6,250	$6.43	$40,188	148,808 Direct	+4.38%	Acquired	638.5% (price as of 2026-08-20)
May 11, 2017	CENTA	S	7,557	$33.41	$252,479	142,558 Direct	-5.03%	Disposed	42.1% (price as of 2026-08-20)
March 31, 2017	CENTA	F	1,749	$34.56	$60,445	150,115 Direct	-1.15%	Disposed	37.4% (price as of 2026-08-20)
Aug. 5, 2016	CENTA	S	4,545	$26.50	$120,442	2,990 Direct	-60.32%	Disposed	79.2% (price as of 2026-08-20)
May 12, 2016	CENTA	S	18,538	$18.27	$338,689	151,864 Direct	-10.88%	Disposed	159.9% (price as of 2026-08-20)
May 9, 2016	CENTA	M	12,500	—	—	37,500 Direct	-25.00%	Disposed	(price as of 2026-08-20)
May 9, 2016	CENTA	M	12,500	—	—	12,500 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 9, 2016	CENTA	M	12,500	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 9, 2016	CENTA	M	11,200	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 9, 2016	CENTA	S	3,027	$18.70	$56,605	170,402 Direct	-1.75%	Disposed	153.9% (price as of 2026-08-20)
May 9, 2016	CENTA	F	8,549	$18.82	$160,892	173,429 Direct	-4.70%	Disposed	152.3% (price as of 2026-08-20)
May 9, 2016	CENTA	M	12,500	$10.63	$132,875	181,978 Direct	+7.38%	Acquired	346.7% (price as of 2026-08-20)
May 9, 2016	CENTA	F	6,522	$18.82	$122,744	169,478 Direct	-3.71%	Disposed	152.3% (price as of 2026-08-20)
May 9, 2016	CENTA	M	12,500	$6.43	$80,375	176,000 Direct	+7.65%	Acquired	638.5% (price as of 2026-08-20)
May 9, 2016	CENTA	F	8,023	$18.82	$150,993	163,500 Direct	-4.68%	Disposed	152.3% (price as of 2026-08-20)
May 9, 2016	CENTA	M	12,500	$9.54	$119,250	171,523 Direct	+7.86%	Acquired	397.8% (price as of 2026-08-20)
May 9, 2016	CENTA	F	7,068	$18.82	$133,020	159,023 Direct	-4.26%	Disposed	152.3% (price as of 2026-08-20)
May 9, 2016	CENTA	M	11,200	$9.26	$103,712	166,091 Direct	+7.23%	Acquired	412.8% (price as of 2026-08-20)
March 31, 2016	CENTA	F	1,140	$16.23	$18,502	154,891 Direct	-0.73%	Disposed	192.6% (price as of 2026-08-20)
Feb. 18, 2016	CENTA	S	18,161	$14.32	$260,066	156,031 Direct	-10.43%	Disposed	231.6% (price as of 2026-08-20)
Feb. 16, 2016	CENTA	M	25,000	—	—	25,000 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Feb. 16, 2016	CENTA	M	37,500	—	—	12,500 Direct	-75.00%	Disposed	(price as of 2026-08-20)
Feb. 16, 2016	CENTA	F	15,234	$13.91	$211,905	174,192 Direct	-8.04%	Disposed	241.4% (price as of 2026-08-20)
Feb. 16, 2016	CENTA	M	25,000	$6.43	$160,750	189,426 Direct	+15.20%	Acquired	638.5% (price as of 2026-08-20)
Feb. 16, 2016	CENTA	F	29,236	$13.91	$406,673	164,426 Direct	-15.10%	Disposed	241.4% (price as of 2026-08-20)
Feb. 16, 2016	CENTA	M	37,500	$9.54	$357,750	193,662 Direct	+24.01%	Acquired	397.8% (price as of 2026-08-20)
Jan. 29, 2016	CENTA	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 20, 2015	CENTA	M	44,800	—	—	25,200 Direct	-64.00%	Disposed	(price as of 2026-08-20)
Aug. 20, 2015	CENTA	F	35,799	$12.80	$458,227	156,162 Direct	-18.65%	Disposed	271.0% (price as of 2026-08-20)
Aug. 20, 2015	CENTA	M	44,800	$9.26	$414,848	191,961 Direct	+30.44%	Acquired	412.8% (price as of 2026-08-20)
Aug. 7, 2015	CENTA	M	75,600	—	—	14,400 Direct	-84.00%	Disposed	(price as of 2026-08-20)
Aug. 7, 2015	CENTA	F	64,490	$11.27	$726,802	147,161 Direct	-30.47%	Disposed	321.4% (price as of 2026-08-20)
Aug. 7, 2015	CENTA	M	75,600	$8.99	$679,644	211,651 Direct	+55.57%	Acquired	428.2% (price as of 2026-08-20)
May 26, 2015	CENTA	S	10,000	$10.02	$100,200	136,051 Direct	-6.85%	Disposed	373.9% (price as of 2026-08-20)
April 16, 2015	CENTA	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
March 31, 2015	CENTA	F	1,140	$10.58	$12,061	146,501 Direct	-0.77%	Disposed	348.8% (price as of 2026-08-20)
Feb. 19, 2015	CENTA	M	69,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 19, 2015	CENTA	F	60,238	$9.72	$585,513	147,641 Direct	-28.98%	Disposed	388.6% (price as of 2026-08-20)
Feb. 19, 2015	CENTA	M	69,000	$8.00	$552,000	207,879 Direct	+49.68%	Acquired	493.6% (price as of 2026-08-20)
Sept. 12, 2014	CENTA	A	16,667	—	—	138,879 Direct	+13.64%	Acquired	(price as of 2026-08-20)
March 21, 2014	CENTA	A	52,400	—	—	122,212 Direct	+75.06%	Acquired	(price as of 2026-08-20)
Dec. 27, 2013	CENTA	F	2,550	$6.74	$17,187	69,812 Direct	-3.52%	Disposed	604.6% (price as of 2026-08-20)
Dec. 27, 2013	CENTA	A	9,643	—	—	72,362 Direct	+15.37%	Acquired	(price as of 2026-08-20)
Dec. 23, 2013	CENTA	M	20,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 23, 2013	CENTA	F	15,272	$6.78	$103,544	62,719 Direct	-19.58%	Disposed	600.4% (price as of 2026-08-20)
Dec. 23, 2013	CENTA	M	20,000	$4.60	$92,000	77,991 Direct	+34.49%	Acquired	932.3% (price as of 2026-08-20)
Dec. 20, 2013	CENTA	M	20,000	—	—	20,000 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Dec. 20, 2013	CENTA	F	15,559	$6.59	$102,534	57,991 Direct	-21.15%	Disposed	620.6% (price as of 2026-08-20)
Dec. 20, 2013	CENTA	M	20,000	$4.60	$92,000	73,550 Direct	+37.35%	Acquired	932.3% (price as of 2026-08-20)
Aug. 26, 2013	CENTA	M	40,000	—	—	40,000 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Aug. 26, 2013	CENTA	F	30,963	$6.64	$205,594	53,550 Direct	-36.64%	Disposed	615.2% (price as of 2026-08-20)
Aug. 26, 2013	CENTA	M	40,000	$4.60	$184,000	84,513 Direct	+89.86%	Acquired	932.3% (price as of 2026-08-20)
Aug. 12, 2013	CENTA	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 20, 2012	CENTA	M	30,000	—	—	80,000 Direct	-27.27%	Disposed	(price as of 2026-08-20)
Aug. 20, 2012	CENTA	F	17,121	$11.05	$189,187	44,513 Direct	-27.78%	Disposed	329.8% (price as of 2026-08-20)
Aug. 20, 2012	CENTA	M 10b5-1	30,000	$4.60	$138,000	61,634 Direct	+94.83%	Acquired	932.3% (price as of 2026-08-20)
May 25, 2012	CENTA	S 10b5-1	10,000	$9.28	$92,800	31,634 Direct	-24.02%	Disposed	411.7% (price as of 2026-08-20)
May 24, 2012	CENTA	M	10,000	—	—	110,000 Direct	-8.33%	Disposed	(price as of 2026-08-20)
May 24, 2012	CENTA	F	6,288	$9.29	$58,416	41,634 Direct	-13.12%	Disposed	411.2% (price as of 2026-08-20)
May 24, 2012	CENTA	M 10b5-1	10,000	$4.60	$46,000	47,922 Direct	+26.37%	Acquired	932.3% (price as of 2026-08-20)
March 26, 2012	CENTA	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 14, 2012	CENTA	F	3,218	$9.28	$29,863	37,922 Direct	-7.82%	Disposed	411.7% (price as of 2026-08-20)
Feb. 14, 2012	CENTA	A	11,422	—	—	41,140 Direct	+38.43%	Acquired	(price as of 2026-08-20)
Feb. 13, 2012	CENTA	F	1,226	$9.43	$11,561	29,718 Direct	-3.96%	Disposed	403.6% (price as of 2026-08-20)
Feb. 13, 2012	CENTA	F	613	$8.79	$5,388	7,535 Direct	-7.52%	Disposed	440.2% (price as of 2026-08-20)
April 13, 2011	CENTA	A	70,000	—	—	70,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 14, 2011	CENTA	F	1,226	$9.50	$11,647	30,944 Direct	-3.81%	Disposed	399.9% (price as of 2026-08-20)
Feb. 14, 2011	CENTA	F	545	$9.51	$5,183	8,148 Direct	-6.27%	Disposed	399.3% (price as of 2026-08-20)
June 4, 2010	CENTA	A	90,000	—	—	90,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 13, 2010	CENTA	F	1,215	$8.99	$10,923	32,170 Direct	-3.64%	Disposed	428.2% (price as of 2026-08-20)

Showing latest 100 of 107 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
May 10, 2018	CENTA	Class A Common Stock	Class A Common Stock (12,500)	$13.82	Jan. 29, 2022	12,500	Disposed
May 10, 2018	CENTA	Class A Common Stock	Class A Common Stock (12,500)	$10.63	March 31, 2021	12,500	Disposed
May 12, 2017	CENTA	Class A Common Stock	Class A Common Stock (6,250)	$13.82	Jan. 29, 2022	6,250	Disposed
May 12, 2017	CENTA	Class A Common Stock	Class A Common Stock (6,250)	$10.63	March 31, 2021	6,250	Disposed
May 12, 2017	CENTA	Class A Common Stock	Class A Common Stock (6,250)	$6.43	March 31, 2019	6,250	Disposed
May 11, 2017	CENTA	Class A Common Stock	Class A Common Stock (6,250)	$13.82	Jan. 29, 2022	6,250	Disposed
May 11, 2017	CENTA	Class A Common Stock	Class A Common Stock (6,250)	$10.63	March 31, 2021	6,250	Disposed
May 11, 2017	CENTA	Class A Common Stock	Class A Common Stock (6,250)	$6.43	March 31, 2019	6,250	Disposed
May 9, 2016	CENTA	Stock Option (Right to Buy)	Class A Common Stock (12,500)	$10.63	March 31, 2021	12,500	Disposed
May 9, 2016	CENTA	Stock Option (Right to Buy)	Class A Common Stock (12,500)	$6.43	March 31, 2019	12,500	Disposed
May 9, 2016	CENTA	Stock Option (Right to Buy)	Class A Common Stock (12,500)	$9.54	March 26, 2018	12,500	Disposed
May 9, 2016	CENTA	Stock Option (Right to Buy)	Class A Common Stock (11,200)	$9.26	April 13, 2017	11,200	Disposed
Feb. 16, 2016	CENTA	Stock Option (Right to Buy)	Class A Common Stock (25,000)	$6.43	March 31, 2019	25,000	Disposed
Feb. 16, 2016	CENTA	Stock Option (Right to Buy)	Class A Common Stock (37,500)	$9.54	March 26, 2018	37,500	Disposed
Jan. 29, 2016	CENTA	Stock Option (Right to Buy)	Class A Common Stock (50,000)	$13.82	Jan. 29, 2022	50,000	Acquired
Aug. 20, 2015	CENTA	Stock Option (Right to Buy)	Class A Common Stock (44,800)	$9.26	April 13, 2017	44,800	Disposed
Aug. 7, 2015	CENTA	Stock Options (Right to Buy)	Class A Common Stock (75,600)	$8.99	June 4, 2016	75,600	Disposed
April 16, 2015	CENTA	Stock Option (Right to Buy)	Class A Common Stock (50,000)	$10.63	March 31, 2021	50,000	Acquired
Feb. 19, 2015	CENTA	Stock Option (Right to Buy)	Class A Common Stock (69,000)	$8.00	April 14, 2015	69,000	Disposed
Dec. 23, 2013	CENTA	Stock Option (Right to Buy)	Class A Common Stock (20,000)	$4.60	March 4, 2014	20,000	Disposed
Dec. 20, 2013	CENTA	Stock Option (Right to Buy)	Class A Common Stock (20,000)	$4.60	March 4, 2014	20,000	Disposed
Aug. 26, 2013	CENTA	Stock Option (Right to Buy)	Class A Common Stock (40,000)	$4.60	March 4, 2014	40,000	Disposed
Aug. 12, 2013	CENTA	Stock Option (Right to Buy)	Class A Common Stock (50,000)	$6.43	March 31, 2019	50,000	Acquired
Aug. 20, 2012	CENTA	Stock Option (Right to Buy)	Class A Common Stock (30,000)	$4.60	March 4, 2014	30,000	Disposed
May 24, 2012	CENTA	Stock Option (Right to Buy)	Class A Common Stock (10,000)	$4.60	March 4, 2014	10,000	Disposed
March 26, 2012	CENTA	Stock Option (Right to Buy)	Class A Common Stock (50,000)	$9.54	March 26, 2018	50,000	Acquired
April 13, 2011	CENTA	Stock Option (Right to Buy)	Class A Common Stock (70,000)	$9.26	April 13, 2017	70,000	Acquired
June 4, 2010	CENTA	Stock Option (Right to Buy)	Class A Common Stock (90,000)	$8.99	June 4, 2016	90,000	Acquired
April 14, 2009	CENTA	Stock Option (right to buy)	Class A Common Stock (75,000)	$8.00	April 14, 2015	75,000	Acquired
March 4, 2008	CENTA	Stock Option (right to buy)	Class A Common Stock (120,000)	$4.60	March 4, 2014	120,000	Acquired

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

Initial ownership (Form 3) 9 holdings

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

Date	Ticker	Security	Shares	Ownership
Nov. 8, 2007	CENTA	Common Stock	10,000	Direct
Nov. 8, 2007	CENTA	Class A Common Stock	20,000	Direct
Nov. 8, 2007	CENTA	Stock Option (right to buy)→ Common Stock (15,000)	15,000	Direct
Nov. 8, 2007	CENTA	Stock Option (right to buy)→ Common Stock (5,500)	5,500	Direct
Nov. 8, 2007	CENTA	Stock Option (right to buy)→ Common Stock (7,000)	7,000	Direct
Nov. 8, 2007	CENTA	Stock Option (right to buy)→ Class A Common Stock (30,000)	30,000	Direct
Nov. 8, 2007	CENTA	Stock Option (right to buy)→ Class A Common Stock (11,000)	11,000	Direct
Nov. 8, 2007	CENTA	Stock Option (right to buy)→ Class A Common Stock (14,000)	14,000	Direct
Nov. 8, 2007	CENTA	Stock Option (right to buy)→ Class A Common Stock (30,000)	30,000	Direct

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	$480,808	—	—	—	—	—	$26,013	$680,821
2015	$446,154	—	—	—	—	—	$24,337	$597,991
2014	$435,962	$220,000	—	—	—	—	$24,361	$1,223,329

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