Thomas Kirk Walker

CIK 1278889 · View on SEC EDGAR ↗

Insider

First SEC filing: Oct. 19, 2004 · Latest: Oct. 11, 2013

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Insider at

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
Oct. 14, 2011 COST S 44,000 — — 253,763 Direct -14.78% Disposed (price as of 2026-08-19)
Oct. 8, 2010 COST S 43,000 — — 217,165 Direct -16.53% Disposed (price as of 2026-08-19)
Oct. 13, 2009 COST S 75,000 — — 228,462 Direct -24.71% Disposed (price as of 2026-08-19)
Oct. 13, 2009 COST S 75,000 — — 153,462 Direct -32.83% Disposed (price as of 2026-08-19)
March 27, 2008 COST S 60,000 — — 185,784 Direct -24.41% Disposed (price as of 2026-08-19)
Feb. 12, 2007 COST S 48,000 $55.82 $2,679,360 188,519 Direct -20.29% Disposed 1645.8% (price as of 2026-08-19)
Jan. 12, 2007 COST S 48,000 $55.82 $2,679,360 188,519 Direct -20.29% Disposed 1645.8% (price as of 2026-08-19)
April 28, 2006 COST S 280,000 $54.35 $15,218,000 151,759 Direct -64.85% Disposed 1693.0% (price as of 2026-08-19)
Oct. 10, 2005 COST S 70,000 $45.33 $3,173,100 152,159 Direct -31.51% Disposed 2049.8% (price as of 2026-08-19)
Oct. 14, 2004 COST S 50,000 $45.36 $2,268,000 102,902 Direct -32.70% Disposed 2048.4% (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
Oct. 14, 2011 COST Stock Option Common Stock (44,000) $43.79 April 1, 2015 44,000 Disposed
Oct. 8, 2010 COST Stock Option Common Stock (12,000) $33.75 April 1, 2013 12,000 Disposed
Oct. 8, 2010 COST Stock Option Common Stock (31,000) $43.79 April 1, 2015 31,000 Disposed
Oct. 13, 2009 COST Stock Option Common Stock (75,000) $37.35 April 1, 2014 75,000 Disposed
March 27, 2008 COST Stock Option Common Stock (12,000) $33.75 April 1, 2013 12,000 Disposed
March 27, 2008 COST Stock Option Common Stock (36,000) $39.25 April 2, 2012 36,000 Disposed
March 27, 2008 COST Stock Option Common Stock (12,000) $30.41 April 1, 2013 12,000 Disposed
Feb. 12, 2007 COST Stock Option Common Stock (24,000) $33.75 April 1, 2013 24,000 Disposed
Feb. 12, 2007 COST Stock Option Common Stock (24,000) $38.79 April 1, 2012 24,000 Disposed
Jan. 12, 2007 COST Stock Option Common Stock (24,000) $33.75 April 1, 2013 24,000 Disposed
Jan. 12, 2007 COST Stock Option Common Stock (24,000) $38.79 April 2, 2012 24,000 Disposed
April 28, 2006 COST Stock Option Common Stock (60,000) $34.28 April 24, 2011 60,000 Disposed
April 28, 2006 COST Stock Option Common Stock (60,000) $43.00 March 13, 2010 60,000 Disposed
April 28, 2006 COST Stock Option Common Stock (80,000) $36.91 Feb. 9, 2009 80,000 Disposed
April 28, 2006 COST Stock Option Common Stock (80,000) $22.88 Feb. 17, 2008 80,000 Disposed
Oct. 10, 2005 COST Stock Option Common Stock (20,000) $8.75 April 10, 2006 20,000 Disposed
Oct. 10, 2005 COST Stock Option Common Stock (50,000) $13.44 April 2, 2007 50,000 Disposed
April 26, 2005 COST Stock Option Common Stock (20,000) $8.25 Oct. 26, 2005 20,000 Disposed
April 26, 2005 COST Stock Option Common Stock (30,000) $8.75 April 10, 2006 30,000 Disposed
April 1, 2005 COST Stock Option Common Stock (75,000) $43.79 April 1, 2015 75,000 Acquired
April 1, 2004 COST Stock Option Common Stock (75,000) $37.35 March 31, 2014 75,000 Acquired
April 1, 2004 COST Stock Option Common Stock (75,000) $37.35 March 31, 2014 75,000 Acquired

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

Initial ownership (Form 3) 11 holdings

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

Date Ticker Security Shares Ownership
Oct. 19, 2004 COST Common Stock 152,902 Direct
Feb. 6, 2004 COST Common Stock 155,142 Direct
Feb. 6, 2004 COST Stock Option [F1]→ Common Stock (20,000) 20,000 Direct
Feb. 6, 2004 COST Stock Option [F1]→ Common Stock (50,000) 50,000 Direct
Feb. 6, 2004 COST Stock Option [F1]→ Common Stock (50,000) 50,000 Direct
Feb. 6, 2004 COST Stock Option [F1]→ Common Stock (80,000) 80,000 Direct
Feb. 6, 2004 COST Stock Option [F2]→ Common Stock (60,000) 60,000 Direct
Feb. 6, 2004 COST Stock Option [F1]→ Common Stock (60,000) 60,000 Direct
Feb. 6, 2004 COST Stock Option [F1]→ Common Stock (80,000) 80,000 Direct
Feb. 6, 2004 COST Stock Option [F2]→ Common Stock (60,000) 60,000 Direct
Feb. 6, 2004 COST Stock Option [F1]→ Common Stock (60,000) 60,000 Direct

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
2008 $458,462 $42,063 — — — — $64,061 $2,642,501

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