Peter D Behrendt

Insider

First SEC filing: Nov. 25, 2009 · Latest: Nov. 25, 2009

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

WDC selling Nov. 9, 2009

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 51 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

51 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Nov. 11, 2010	WDC	A	3,789	—	—	55,641 Direct	+7.31%	Acquired	(price as of 2026-08-19)
Nov. 11, 2010	WDC	A	8,506	—	—	8,506 Direct	—	Acquired	(price as of 2026-08-19)
Nov. 11, 2009	WDC	A	3,244	—	—	51,852 Direct	+6.67%	Acquired	(price as of 2026-08-19)
Nov. 11, 2009	WDC	A	3,320	—	—	51,928 Direct	+6.83%	Acquired	(price as of 2026-08-19)
Nov. 11, 2009	WDC	A	6,909	—	—	6,909 Direct	—	Acquired	(price as of 2026-08-19)
Nov. 9, 2009	WDC	M	3,750	$3.25	$12,188	52,358 Direct	+7.71%	Acquired	19287.9% (price as of 2026-08-19)
Nov. 9, 2009	WDC	M	10,000	$4.38	$43,800	62,358 Direct	+19.10%	Acquired	14286.0% (price as of 2026-08-19)
Nov. 9, 2009	WDC	S	13,750	$37.29	$512,738	48,608 Direct	-22.05%	Disposed	1589.7% (price as of 2026-08-19)
Nov. 9, 2009	WDC	M	3,750	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Nov. 9, 2009	WDC	M	10,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Nov. 6, 2008	WDC	A	8,148	—	—	48,608 Direct	+20.14%	Acquired	(price as of 2026-08-19)
Nov. 6, 2008	WDC	A	16,743	—	—	16,743 Direct	—	Acquired	(price as of 2026-08-19)
June 3, 2008	WDC	M	10,000	$4.38	$43,800	50,460 Direct	+24.72%	Acquired	14286.0% (price as of 2026-08-19)
June 3, 2008	WDC	S	1,200	$38.74	$46,488	49,260 Direct	-2.38%	Disposed	1526.5% (price as of 2026-08-19)
June 3, 2008	WDC	S	2,700	$38.75	$104,625	46,560 Direct	-5.48%	Disposed	1526.1% (price as of 2026-08-19)
June 3, 2008	WDC	S	1,600	$38.76	$62,016	44,960 Direct	-3.44%	Disposed	1525.7% (price as of 2026-08-19)
June 3, 2008	WDC	S	4,000	$38.77	$155,080	40,960 Direct	-8.90%	Disposed	1525.2% (price as of 2026-08-19)
June 3, 2008	WDC	S	200	$38.78	$7,756	40,760 Direct	-0.49%	Disposed	1524.8% (price as of 2026-08-19)
June 3, 2008	WDC	S	100	$38.79	$3,879	40,660 Direct	-0.25%	Disposed	1524.4% (price as of 2026-08-19)
June 3, 2008	WDC	S	200	$38.80	$7,760	40,460 Direct	-0.49%	Disposed	1524.0% (price as of 2026-08-19)
June 3, 2008	WDC	M	10,000	—	—	10,000 Direct	-50.00%	Disposed	(price as of 2026-08-19)
Jan. 1, 2008	WDC	A	3,310	—	—	38,340 Direct	+9.45%	Acquired	(price as of 2026-08-19)
Jan. 1, 2008	WDC	M	4,527	—	—	42,867 Direct	+11.81%	Acquired	(price as of 2026-08-19)
Jan. 1, 2008	WDC	D	4,527	$19.46	$88,095	38,340 Direct	-10.56%	Disposed	3138.0% (price as of 2026-08-19)
Jan. 1, 2008	WDC	M	2,120	—	—	40,460 Direct	+5.53%	Acquired	(price as of 2026-08-19)
Jan. 1, 2008	WDC	M	2,120	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Jan. 1, 2008	WDC	M	4,527	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Nov. 6, 2007	WDC	A	7,364	—	—	7,364 Direct	—	Acquired	(price as of 2026-08-19)
Aug. 29, 2007	WDC	M	7,500	$21.00	$157,500	42,530 Direct	+21.41%	Acquired	2900.5% (price as of 2026-08-19)
Aug. 29, 2007	WDC	S	4,300	$22.87	$98,341	38,230 Direct	-10.11%	Disposed	2655.2% (price as of 2026-08-19)
Aug. 29, 2007	WDC	S	3,200	$22.88	$73,216	35,030 Direct	-8.37%	Disposed	2654.0% (price as of 2026-08-19)
Aug. 29, 2007	WDC	M	7,500	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Feb. 6, 2007	WDC	A	9,185	—	—	9,185 Direct	—	Acquired	(price as of 2026-08-19)
Jan. 1, 2007	WDC	A	4,887	—	—	35,030 Direct	+16.21%	Acquired	(price as of 2026-08-19)
Jan. 1, 2007	WDC	M	2,100	—	—	37,130 Direct	+5.99%	Acquired	(price as of 2026-08-19)
Jan. 1, 2007	WDC	D	2,100	$20.20	$42,420	35,030 Direct	-5.66%	Disposed	3019.3% (price as of 2026-08-19)
Jan. 1, 2007	WDC	M	2,100	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
April 1, 2006	WDC	M	2,100	—	—	32,243 Direct	+6.97%	Acquired	(price as of 2026-08-19)
April 1, 2006	WDC	D	2,100	$15.68	$32,928	30,143 Direct	-6.51%	Disposed	3918.5% (price as of 2026-08-19)
April 1, 2006	WDC	M	2,100	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Jan. 1, 2006	WDC	M	3,639	—	—	24,770 Direct	+17.22%	Acquired	(price as of 2026-08-19)
Jan. 1, 2006	WDC	A	5,373	—	—	30,143 Direct	+21.69%	Acquired	(price as of 2026-08-19)
Jan. 1, 2006	WDC	M	3,639	—	—	2,120 Direct	-63.19%	Disposed	(price as of 2026-08-19)
Dec. 22, 2005	WDC	M	7,500	$13.62	$102,150	28,631 Direct	+35.49%	Acquired	4526.3% (price as of 2026-08-19)
Dec. 22, 2005	WDC	M	937	$3.94	$3,692	29,568 Direct	+3.27%	Acquired	15892.5% (price as of 2026-08-19)
Dec. 22, 2005	WDC	M	5,000	$11.61	$58,050	34,568 Direct	+16.91%	Acquired	5327.3% (price as of 2026-08-19)
Dec. 22, 2005	WDC	S	12,000	$18.60	$223,200	22,568 Direct	-34.71%	Disposed	3287.7% (price as of 2026-08-19)
Dec. 22, 2005	WDC	S	1,437	$18.62	$26,757	21,131 Direct	-6.37%	Disposed	3284.0% (price as of 2026-08-19)
Dec. 22, 2005	WDC	M	937	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Dec. 22, 2005	WDC	M	5,000	—	—	5,000 Direct	-50.00%	Disposed	(price as of 2026-08-19)
Dec. 22, 2005	WDC	M	7,500	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Nov. 17, 2005	WDC	A	12,500	—	—	12,500 Direct	—	Acquired	(price as of 2026-08-19)
May 27, 2005	WDC	M	30,000	$4.38	$131,400	51,131 Direct	+141.97%	Acquired	14286.0% (price as of 2026-08-19)
May 27, 2005	WDC	S	30,000	$14.73	$441,900	21,131 Direct	-58.67%	Disposed	4177.7% (price as of 2026-08-19)
May 27, 2005	WDC	M	30,000	—	—	20,000 Direct	-60.00%	Disposed	(price as of 2026-08-19)
Feb. 1, 2005	WDC	M	4,099	—	—	21,131 Direct	+24.07%	Acquired	(price as of 2026-08-19)
Feb. 1, 2005	WDC	M	4,099	—	—	5,759 Direct	-41.58%	Disposed	(price as of 2026-08-19)
Jan. 1, 2005	WDC	A	4,527	—	—	4,527 Direct	—	Acquired	(price as of 2026-08-19)
Nov. 18, 2004	WDC	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-19)
Jan. 1, 2004	WDC	A	2,120	$11.79	$24,995	9,858 Direct	+27.40%	Acquired	5244.4% (price as of 2026-08-19)
Jan. 1, 2004	WDC	A	2,100	—	—	2,100 Direct	—	Acquired	(price as of 2026-08-19)
Jan. 1, 2004	WDC	A	2,120	$11.79	$24,995	9,858 Direct	+27.40%	Acquired	5244.4% (price as of 2026-08-19)
Jan. 1, 2004	WDC	A	2,100	—	—	2,100 Direct	—	Acquired	(price as of 2026-08-19)
Nov. 20, 2003	WDC	A	10,000	—	—	10,000 Direct	—	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
Nov. 11, 2010	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (8,506)	$32.99	Nov. 11, 2017	8,506	Acquired
Nov. 11, 2009	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (6,909)	$38.53	Nov. 11, 2016	6,909	Acquired
Nov. 9, 2009	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (3,750)	$3.25	Nov. 30, 2010	3,750	Disposed
Nov. 9, 2009	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$4.38	May 25, 2010	10,000	Disposed
Nov. 6, 2008	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (16,743)	$15.34	Nov. 6, 2015	16,743	Acquired
June 3, 2008	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$4.38	May 25, 2010	10,000	Disposed
Jan. 1, 2008	WDC	Deferred Stock Units	Common Stock (2,120)	—	—	2,120	Disposed
Jan. 1, 2008	WDC	Phantom Stock	Common Stock (4,527)	$0.00	Jan. 1, 2008	4,527	Disposed
Nov. 6, 2007	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (7,364)	$27.64	Nov. 6, 2014	7,364	Acquired
Aug. 29, 2007	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (7,500)	$21.00	Nov. 13, 2007	7,500	Disposed
Feb. 6, 2007	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (9,185)	$19.09	Feb. 6, 2017	9,185	Acquired
Jan. 1, 2007	WDC	Phantom Stock	Common Stock (2,100)	$0.00	Jan. 1, 2007	2,100	Disposed
April 1, 2006	WDC	Phantom Stock	Common Stock (2,100)	$0.00	April 1, 2006	2,100	Disposed
Jan. 1, 2006	WDC	Deferred Stock Units	Common Stock (3,639)	—	—	3,639	Disposed
Dec. 22, 2005	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (937)	$3.94	Nov. 18, 2009	937	Disposed
Dec. 22, 2005	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (5,000)	$11.61	Nov. 20, 2013	5,000	Disposed
Dec. 22, 2005	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (7,500)	$13.62	Nov. 5, 2008	7,500	Disposed
Nov. 17, 2005	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (12,500)	$13.76	Nov. 17, 2015	12,500	Acquired
May 27, 2005	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (30,000)	$4.38	May 25, 2010	30,000	Disposed
Feb. 1, 2005	WDC	Deferred Stock Units	Common Stock (4,099)	—	Feb. 1, 2005	4,099	Disposed
Jan. 1, 2005	WDC	Phantom Stock	Common Stock (4,527)	—	Jan. 1, 2008	4,527	Acquired
Nov. 18, 2004	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$9.21	Nov. 18, 2014	10,000	Acquired
Jan. 1, 2004	WDC	Deferred Stock Units	Common Stock (2,120)	$0.00	—	2,120	Acquired
Jan. 1, 2004	WDC	Phantom Stock [F2]	Common Stock (2,100)	—	Jan. 1, 2007	2,100	Acquired
Jan. 1, 2004	WDC	Deferred Stock Units	Common Stock (2,120)	$0.00	—	2,120	Acquired
Jan. 1, 2004	WDC	Phantom Stock [F2]	Common Stock (2,100)	—	Jan. 1, 2007	2,100	Acquired
Nov. 20, 2003	WDC	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$11.61	Nov. 20, 2013	10,000	Acquired

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