Richard D Dicerchio

Insider

First SEC filing: Oct. 15, 2009 · Latest: Oct. 13, 2011

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

COST selling June 14, 2011

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 67 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

67 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 14, 2011	COST	S	6,048	—	—	128,030 Direct	-4.51%	Disposed	(price as of 2026-08-20)
April 30, 2011	COST	F	1,058	$80.89	$85,582	134,607 Direct	-0.78%	Disposed	1059.0% (price as of 2026-08-20)
April 30, 2011	COST	F	529	$80.89	$42,791	134,078 Direct	-0.39%	Disposed	1059.0% (price as of 2026-08-20)
April 30, 2011	COST	F	605	$80.89	$48,938	135,665 Direct	-0.44%	Disposed	1059.0% (price as of 2026-08-20)
Dec. 21, 2010	COST	S	10,000	$72.42	$724,200	136,270 Direct	-6.84%	Disposed	1194.6% (price as of 2026-08-20)
Dec. 13, 2010	COST	F	44	$70.74	$3,113	146,270 Direct	-0.03%	Disposed	1225.3% (price as of 2026-08-20)
Dec. 13, 2010	COST	F	53	$70.74	$3,749	146,314 Direct	-0.04%	Disposed	1225.3% (price as of 2026-08-20)
Dec. 13, 2010	COST	S	10,000	—	—	146,367 Direct	-6.40%	Disposed	(price as of 2026-08-20)
Dec. 13, 2010	COST	S	10,000	—	—	146,367 Direct	-6.40%	Disposed	(price as of 2026-08-20)
Oct. 29, 2010	COST	S	19,216	—	—	156,367 Direct	-10.94%	Disposed	(price as of 2026-08-20)
Oct. 22, 2010	COST	A	3,000	—	—	196,416 Direct	+1.55%	Acquired	(price as of 2026-08-20)
Oct. 22, 2010	COST	F	1,458	$64.03	$93,356	193,416 Direct	-0.75%	Disposed	1364.2% (price as of 2026-08-20)
Oct. 22, 2010	COST	F	1,458	$64.03	$93,356	194,874 Direct	-0.74%	Disposed	1364.2% (price as of 2026-08-20)
Oct. 20, 2010	COST	S	10,000	—	—	176,332 Direct	-5.37%	Disposed	(price as of 2026-08-20)
Oct. 19, 2010	COST	F	2,122	$62.21	$132,010	196,332 Direct	-1.07%	Disposed	1407.0% (price as of 2026-08-20)
Oct. 17, 2010	COST	F	2,100	$63.70	$133,770	198,454 Direct	-1.05%	Disposed	1371.8% (price as of 2026-08-20)
Oct. 11, 2010	COST	S	10,000	—	—	190,554 Direct	-4.99%	Disposed	(price as of 2026-08-20)
Oct. 7, 2010	COST	F	3,646	$65.26	$237,938	200,554 Direct	-1.79%	Disposed	1336.6% (price as of 2026-08-20)
Oct. 7, 2010	COST	A	30,000	—	—	204,200 Direct	+17.22%	Acquired	(price as of 2026-08-20)
April 23, 2010	COST	M	36,000	$34.74	$1,250,640	0 Direct	-100.00%	Disposed	2598.7% (price as of 2026-08-20)
April 23, 2010	COST	M	90,000	$43.79	$3,941,100	0 Direct	-100.00%	Disposed	2040.9% (price as of 2026-08-20)
April 23, 2010	COST	M	90,000	$37.35	$3,361,500	0 Direct	-100.00%	Disposed	2410.1% (price as of 2026-08-20)
April 23, 2010	COST	S	216,000	—	—	174,553 Direct	-55.31%	Disposed	(price as of 2026-08-20)
April 23, 2010	COST	M	36,000	$34.74	$1,250,640	390,553 Direct	+10.15%	Acquired	2598.7% (price as of 2026-08-20)
April 23, 2010	COST	M	90,000	$43.79	$3,941,100	354,553 Direct	+34.02%	Acquired	2040.9% (price as of 2026-08-20)
April 23, 2010	COST	M	90,000	$37.35	$3,361,500	264,553 Direct	+51.56%	Acquired	2410.1% (price as of 2026-08-20)
April 17, 2010	COST	F	1,050	$59.19	$62,150	174,553 Direct	-0.60%	Disposed	1483.9% (price as of 2026-08-20)
March 15, 2010	COST	M	25,200	$33.75	$850,500	0 Direct	-100.00%	Disposed	2677.8% (price as of 2026-08-20)
March 15, 2010	COST	S	25,200	—	—	175,603 Direct	-12.55%	Disposed	(price as of 2026-08-20)
March 15, 2010	COST	M	25,200	$33.75	$850,500	200,803 Direct	+14.35%	Acquired	2677.8% (price as of 2026-08-20)
March 9, 2010	COST	M	36,000	$33.75	$1,215,000	25,200 Direct	-58.82%	Disposed	2677.8% (price as of 2026-08-20)
March 9, 2010	COST	M	10,800	$33.75	$364,500	61,200 Direct	-15.00%	Disposed	2677.8% (price as of 2026-08-20)
March 9, 2010	COST	M	18,000	$30.41	$547,380	0 Direct	-100.00%	Disposed	2982.9% (price as of 2026-08-20)
March 9, 2010	COST	S	64,800	—	—	175,603 Direct	-26.95%	Disposed	(price as of 2026-08-20)
March 9, 2010	COST	M	18,000	$30.41	$547,380	240,403 Direct	+8.09%	Acquired	2982.9% (price as of 2026-08-20)
March 9, 2010	COST	M	36,000	$33.75	$1,215,000	222,403 Direct	+19.31%	Acquired	2677.8% (price as of 2026-08-20)
March 9, 2010	COST	M	10,800	$33.75	$364,500	186,403 Direct	+6.15%	Acquired	2677.8% (price as of 2026-08-20)
Dec. 23, 2009	COST	M	54,000	$34.28	$1,851,120	0 Direct	-100.00%	Disposed	2634.9% (price as of 2026-08-20)
Dec. 23, 2009	COST	M	36,000	$38.79	$1,396,440	0 Direct	-100.00%	Disposed	2316.9% (price as of 2026-08-20)
Dec. 23, 2009	COST	M	54,000	$39.25	$2,119,500	0 Direct	-100.00%	Disposed	2288.6% (price as of 2026-08-20)
Dec. 23, 2009	COST	S	144,000	—	—	175,603 Direct	-45.06%	Disposed	(price as of 2026-08-20)
Dec. 23, 2009	COST	M	54,000	$39.25	$2,119,500	319,603 Direct	+20.33%	Acquired	2288.6% (price as of 2026-08-20)
Dec. 23, 2009	COST	M	36,000	$38.79	$1,396,440	265,603 Direct	+15.68%	Acquired	2316.9% (price as of 2026-08-20)
Dec. 23, 2009	COST	M	54,000	$34.28	$1,851,120	229,603 Direct	+30.75%	Acquired	2634.9% (price as of 2026-08-20)
Oct. 22, 2009	COST	F	1,459	$58.27	$85,016	177,178 Direct	-0.82%	Disposed	1508.9% (price as of 2026-08-20)
Oct. 19, 2009	COST	F	2,100	$59.23	$124,383	178,637 Direct	-1.16%	Disposed	1482.8% (price as of 2026-08-20)
Oct. 19, 2009	COST	M	72,000	$43.00	$3,096,000	0 Direct	-100.00%	Disposed	2080.3% (price as of 2026-08-20)
Oct. 19, 2009	COST	M	18,000	$49.81	$896,580	0 Direct	-100.00%	Disposed	1782.2% (price as of 2026-08-20)
Oct. 19, 2009	COST	S	90,000	—	—	180,737 Direct	-33.24%	Disposed	(price as of 2026-08-20)
Oct. 19, 2009	COST	M	72,000	$43.00	$3,096,000	270,737 Direct	+36.23%	Acquired	2080.3% (price as of 2026-08-20)
Oct. 19, 2009	COST	M	18,000	$49.81	$896,580	198,737 Direct	+9.96%	Acquired	1782.2% (price as of 2026-08-20)
Oct. 17, 2009	COST	F	1,658	$58.48	$96,960	180,737 Direct	-0.91%	Disposed	1503.1% (price as of 2026-08-20)
Oct. 7, 2009	COST	F	2,646	$59.00	$156,114	182,395 Direct	-1.43%	Disposed	1489.0% (price as of 2026-08-20)
Oct. 7, 2009	COST	A	30,000	—	—	185,041 Direct	+19.35%	Acquired	(price as of 2026-08-20)
April 17, 2009	COST	F	754	$45.77	$34,511	154,816 Direct	-0.48%	Disposed	1948.3% (price as of 2026-08-20)
Oct. 19, 2008	COST	F	1,567	$57.98	$90,855	157,120 Direct	-0.99%	Disposed	1517.0% (price as of 2026-08-20)
Oct. 17, 2008	COST	F	1,587	$57.98	$92,014	158,687 Direct	-0.99%	Disposed	1517.0% (price as of 2026-08-20)
Oct. 17, 2008	COST	A	30,000	—	—	160,274 Direct	+23.03%	Acquired	(price as of 2026-08-20)
July 14, 2008	COST	A	25	—	—	131,894 Direct	+0.02%	Acquired	(price as of 2026-08-20)
April 17, 2008	COST	F	763	$68.49	$52,258	131,869 Direct	-0.58%	Disposed	1268.8% (price as of 2026-08-20)
Oct. 19, 2007	COST	F	2,187	$65.70	$143,686	133,074 Direct	-1.62%	Disposed	1327.0% (price as of 2026-08-20)
Oct. 19, 2007	COST	A	30,000	—	—	135,261 Direct	+28.50%	Acquired	(price as of 2026-08-20)
Oct. 12, 2007	COST	M	35,000	$36.91	$1,291,850	0 Direct	-100.00%	Disposed	2440.0% (price as of 2026-08-20)
Oct. 12, 2007	COST	S	35,000	$68.07	$2,382,450	105,261 Direct	-24.95%	Disposed	1277.3% (price as of 2026-08-20)
Oct. 12, 2007	COST	M	35,000	$36.91	$1,291,850	140,261 Direct	+33.25%	Acquired	2440.0% (price as of 2026-08-20)
Aug. 27, 2007	COST	M	58,621	$36.91	$2,163,701	35,000 Direct	-62.62%	Disposed	2440.0% (price as of 2026-08-20)
Aug. 27, 2007	COST	S	58,621	$61.72	$3,618,088	105,261 Direct	-35.77%	Disposed	1419.0% (price as of 2026-08-20)
Aug. 27, 2007	COST	M	58,621	$36.91	$2,163,701	163,882 Direct	+55.69%	Acquired	2440.0% (price as of 2026-08-20)
Aug. 24, 2007	COST	M	11,679	$36.91	$431,072	93,621 Direct	-11.09%	Disposed	2440.0% (price as of 2026-08-20)
Aug. 24, 2007	COST	S	11,679	$61.70	$720,594	105,261 Direct	-9.99%	Disposed	1419.5% (price as of 2026-08-20)
Aug. 24, 2007	COST	M	11,679	$36.96	$431,656	116,940 Direct	+11.10%	Acquired	2436.6% (price as of 2026-08-20)
Aug. 23, 2007	COST	M	14,700	$36.91	$542,577	105,300 Direct	-12.25%	Disposed	2440.0% (price as of 2026-08-20)
Aug. 23, 2007	COST	S	14,700	$61.70	$906,990	105,261 Direct	-12.25%	Disposed	1419.5% (price as of 2026-08-20)
Aug. 23, 2007	COST	M	14,700	$36.91	$542,577	119,961 Direct	+13.97%	Acquired	2440.0% (price as of 2026-08-20)
April 17, 2007	COST	F	1,094	$55.60	$60,826	105,711 Direct	-1.02%	Disposed	1586.2% (price as of 2026-08-20)
Feb. 16, 2007	COST	M	84,000	$22.88	$1,921,920	0 Direct	-100.00%	Disposed	3997.6% (price as of 2026-08-20)
Feb. 16, 2007	COST	S	84,000	$57.78	$4,853,520	106,805 Direct	-44.02%	Disposed	1522.6% (price as of 2026-08-20)
Feb. 16, 2007	COST	M	84,000	$22.88	$1,921,920	190,805 Direct	+78.65%	Acquired	3997.6% (price as of 2026-08-20)
Oct. 17, 2006	COST	A	15,000	—	—	108,535 Direct	+16.04%	Acquired	(price as of 2026-08-20)
Dec. 21, 2005	COST	S	10,000	$49.50	$495,000	96,230 Direct	-9.41%	Disposed	1794.0% (price as of 2026-08-20)
April 1, 2005	COST	A	90,000	—	—	90,000 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 1, 2004	COST	M	24,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 1, 2004	COST	S	24,000	$47.51	$1,140,240	107,480 Direct	-18.25%	Disposed	1873.3% (price as of 2026-08-20)
Nov. 1, 2004	COST	M	24,000	$13.44	$322,560	131,480 Direct	+22.33%	Acquired	6875.6% (price as of 2026-08-20)
April 1, 2004	COST	A	90,000	—	—	90,000 Direct	—	Acquired	(price as of 2026-08-20)
April 1, 2004	COST	A	90,000	—	—	90,000 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 11, 2003	COST	S	20,000	$34.50	$690,000	110,785 Direct	-15.29%	Disposed	2617.4% (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
April 23, 2010	COST	Stock Option	Common Stock (36,000)	$34.74	April 24, 2011	36,000	Disposed
April 23, 2010	COST	Stock Option	Common Stock (90,000)	$43.79	April 1, 2015	90,000	Disposed
April 23, 2010	COST	Stock Option	Common Stock (90,000)	$37.35	April 1, 2014	90,000	Disposed
March 15, 2010	COST	Stock Option	Common Stock (25,200)	$33.75	April 1, 2013	25,200	Disposed
March 9, 2010	COST	Stock Option	Common Stock (36,000)	$33.75	April 1, 2013	36,000	Disposed
March 9, 2010	COST	Stock Option	Common Stock (10,800)	$33.75	April 1, 2013	10,800	Disposed
March 9, 2010	COST	Stock Option	Common Stock (18,000)	$30.41	April 1, 2013	18,000	Disposed
Dec. 23, 2009	COST	Stock Option	Common Stock (54,000)	$34.28	April 24, 2011	54,000	Disposed
Dec. 23, 2009	COST	Stock Option	Common Stock (36,000)	$38.79	April 2, 2012	36,000	Disposed
Dec. 23, 2009	COST	Stock Option	Common Stock (54,000)	$39.25	April 2, 2012	54,000	Disposed
Oct. 19, 2009	COST	Stock Option	Common Stock (72,000)	$43.00	March 13, 2010	72,000	Disposed
Oct. 19, 2009	COST	Stock Option	Common Stock (18,000)	$49.81	March 13, 2010	18,000	Disposed
Oct. 12, 2007	COST	Stock Option	Common Stock (35,000)	$36.91	Feb. 9, 2009	35,000	Disposed
Aug. 27, 2007	COST	Stock Option	Common Stock (58,621)	$36.91	Feb. 9, 2009	58,621	Disposed
Aug. 24, 2007	COST	Stock Option	Common Stock (11,679)	$36.91	Feb. 9, 2009	11,679	Disposed
Aug. 23, 2007	COST	Stock Option	Common Stock (14,700)	$36.91	Feb. 9, 2009	14,700	Disposed
Feb. 16, 2007	COST	Stock Option	Common Stock (84,000)	$22.88	Feb. 17, 2008	84,000	Disposed
April 1, 2005	COST	Stock Option	Common Stock (90,000)	$43.79	April 1, 2015	90,000	Acquired
Nov. 1, 2004	COST	Stock Option	Common Stock (24,000)	$13.44	April 2, 2007	24,000	Disposed
April 1, 2004	COST	Stock Option	Common Stock (90,000)	$37.35	March 31, 2014	90,000	Acquired
April 1, 2004	COST	Stock Option	Common Stock (90,000)	$37.35	March 31, 2014	90,000	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.

COST

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2010	$583,107	$95,200	—	—	—	—	$107,557	$2,523,482
2009	$605,002	$40,441	—	—	—	$2,179	$88,671	$2,373,077
2008	$574,520	$52,578	—	—	—	$26,756	$68,683	$3,265,485

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