Maureen L Lamb

Insider

First SEC filing: June 30, 2005 · Latest: June 30, 2005

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

KLAC selling June 28, 2005

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 44 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

44 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 28, 2005	KLAC	M	1,740	$44.69	$77,761	5,916 Direct	+41.67%	Acquired	4067.0% (price as of 2026-08-20)
June 28, 2005	KLAC	S	1,740	$45.00	$78,300	4,176 Direct	-29.41%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	M	13,260	$44.69	$592,589	17,436 Direct	+317.53%	Acquired	4067.0% (price as of 2026-08-20)
June 28, 2005	KLAC	S	13,260	$45.00	$596,700	4,176 Direct	-76.05%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	M	712	$40.66	$28,950	4,888 Direct	+17.05%	Acquired	4480.1% (price as of 2026-08-20)
June 28, 2005	KLAC	S	712	$45.00	$32,040	4,176 Direct	-14.57%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	M	712	$45.00	$32,040	1,538 Direct	-31.64%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	M	1,740	$45.00	$78,300	13,260 Direct	-11.60%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	M	13,260	$45.00	$596,700	0 Direct	-100.00%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	M	712	$45.00	$32,040	1,538 Direct	-31.64%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	S	712	$45.00	$32,040	4,176 Direct	-14.57%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	M	712	$40.66	$28,950	4,888 Direct	+17.05%	Acquired	4480.1% (price as of 2026-08-20)
June 28, 2005	KLAC	S	1,187	$45.00	$53,415	4,176 Direct	-22.13%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	M	1,187	$45.16	$53,605	5,363 Direct	+28.42%	Acquired	4023.7% (price as of 2026-08-20)
June 28, 2005	KLAC	S	13,260	$45.00	$596,700	4,176 Direct	-76.05%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	M	13,260	$44.69	$592,589	17,436 Direct	+317.53%	Acquired	4067.0% (price as of 2026-08-20)
June 28, 2005	KLAC	S	1,740	$45.00	$78,300	4,176 Direct	-29.41%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	M	1,740	$44.69	$77,761	5,916 Direct	+41.67%	Acquired	4067.0% (price as of 2026-08-20)
June 28, 2005	KLAC	M	1,187	$45.00	$53,415	2,563 Direct	-31.65%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	M	13,260	$45.00	$596,700	0 Direct	-100.00%	Disposed	4038.3% (price as of 2026-08-20)
June 28, 2005	KLAC	M	1,740	$45.00	$78,300	13,260 Direct	-11.60%	Disposed	4038.3% (price as of 2026-08-20)
May 26, 2005	KLAC	M	1,875	$45.00	$84,375	1,875 Direct	-50.00%	Disposed	4038.3% (price as of 2026-08-20)
May 26, 2005	KLAC	M	2,250	$45.05	$101,362	3,750 Direct	-37.50%	Disposed	4033.7% (price as of 2026-08-20)
May 26, 2005	KLAC	M	334	$45.00	$15,030	0 Direct	-100.00%	Disposed	4038.3% (price as of 2026-08-20)
May 26, 2005	KLAC	M	625	$45.02	$28,138	1,375 Direct	-31.25%	Disposed	4036.5% (price as of 2026-08-20)
May 26, 2005	KLAC	M	1,875	$45.00	$84,375	6,375 Direct	-22.73%	Disposed	4038.3% (price as of 2026-08-20)
May 26, 2005	KLAC	M	750	$45.00	$33,750	750 Direct	-50.00%	Disposed	4038.3% (price as of 2026-08-20)
May 26, 2005	KLAC	S	2,250	$45.05	$101,362	4,176 Direct	-35.01%	Disposed	4033.7% (price as of 2026-08-20)
May 26, 2005	KLAC	M	2,250	$34.67	$78,008	6,426 Direct	+53.88%	Acquired	5271.4% (price as of 2026-08-20)
May 26, 2005	KLAC	S	1,875	$45.00	$84,375	4,176 Direct	-30.99%	Disposed	4038.3% (price as of 2026-08-20)
May 26, 2005	KLAC	M	1,875	$37.05	$69,469	6,051 Direct	+44.90%	Acquired	4926.3% (price as of 2026-08-20)
May 26, 2005	KLAC	S	1,875	$45.00	$84,375	4,176 Direct	-30.99%	Disposed	4038.3% (price as of 2026-08-20)
May 26, 2005	KLAC	M	1,875	$29.31	$54,956	6,051 Direct	+44.90%	Acquired	6253.6% (price as of 2026-08-20)
May 26, 2005	KLAC	S	625	$45.02	$28,138	4,176 Direct	-13.02%	Disposed	4036.5% (price as of 2026-08-20)
May 26, 2005	KLAC	M	625	$32.75	$20,469	4,801 Direct	+14.97%	Acquired	5586.3% (price as of 2026-08-20)
May 26, 2005	KLAC	S	750	$45.00	$33,750	4,176 Direct	-15.23%	Disposed	4038.3% (price as of 2026-08-20)
May 26, 2005	KLAC	M	750	$26.25	$19,688	4,926 Direct	+17.96%	Acquired	6994.3% (price as of 2026-08-20)
May 26, 2005	KLAC	S	334	$45.00	$15,030	4,176 Direct	-7.41%	Disposed	4038.3% (price as of 2026-08-20)
May 26, 2005	KLAC	M	334	$33.75	$11,272	4,510 Direct	+8.00%	Acquired	5417.8% (price as of 2026-08-20)
Dec. 6, 2004	KLAC	M	1,500	$49.02	$73,530	6,000 Direct	-20.00%	Disposed	3699.0% (price as of 2026-08-20)
Dec. 6, 2004	KLAC	M	5,500	$49.02	$269,610	2,000 Direct	-73.33%	Disposed	3699.0% (price as of 2026-08-20)
Dec. 6, 2004	KLAC	M	8,250	$49.02	$404,415	8,250 Direct	-50.00%	Disposed	3699.0% (price as of 2026-08-20)
Dec. 6, 2004	KLAC	M	2,375	$49.02	$116,422	1,500 Direct	-61.29%	Disposed	3699.0% (price as of 2026-08-20)
Dec. 6, 2004	KLAC	S	1,500	$49.02	$73,530	3,835 Direct	-28.12%	Disposed	3699.0% (price as of 2026-08-20)
Dec. 6, 2004	KLAC	M	1,500	$34.67	$52,005	5,335 Direct	+39.11%	Acquired	5271.4% (price as of 2026-08-20)
Dec. 6, 2004	KLAC	S	8,250	$49.02	$404,415	3,835 Direct	-68.27%	Disposed	3699.0% (price as of 2026-08-20)
Dec. 6, 2004	KLAC	M	8,250	$29.31	$241,808	12,085 Direct	+215.12%	Acquired	6253.6% (price as of 2026-08-20)
Dec. 6, 2004	KLAC	S	5,500	$49.02	$269,610	3,835 Direct	-58.92%	Disposed	3699.0% (price as of 2026-08-20)
Dec. 6, 2004	KLAC	M	5,500	$32.75	$180,125	9,335 Direct	+143.42%	Acquired	5586.3% (price as of 2026-08-20)
Dec. 6, 2004	KLAC	S	2,375	$49.02	$116,422	3,835 Direct	-38.24%	Disposed	3699.0% (price as of 2026-08-20)
Dec. 6, 2004	KLAC	M	2,375	$26.25	$62,344	6,210 Direct	+61.93%	Acquired	6994.3% (price as of 2026-08-20)
Sept. 21, 2004	KLAC	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 2, 2004	KLAC	A	2,250	—	—	2,250 Direct	—	Acquired	(price as of 2026-08-20)
April 26, 2004	KLAC	A	3,750	—	—	3,750 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 27, 2004	KLAC	A	3,000	—	—	3,000 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 27, 2003	KLAC	A	6,000	$53.86	$323,160	6,000 Direct	—	Acquired	3357.6% (price as of 2026-08-20)
Sept. 8, 2003	KLAC	M	6,000	$57.86	$347,160	16,500 Direct	-26.67%	Disposed	3118.5% (price as of 2026-08-20)
Sept. 8, 2003	KLAC	M	3,000	$57.86	$173,580	334 Direct	-89.98%	Disposed	3118.5% (price as of 2026-08-20)
Sept. 8, 2003	KLAC	S	6,000	$57.86	$347,160	3,196 Direct	-65.25%	Disposed	3118.5% (price as of 2026-08-20)
Sept. 8, 2003	KLAC	M	6,000	$29.31	$175,860	9,196 Direct	+187.73%	Acquired	6253.6% (price as of 2026-08-20)
Sept. 8, 2003	KLAC	S	3,000	$57.86	$173,580	3,196 Direct	-48.42%	Disposed	3118.5% (price as of 2026-08-20)
Sept. 8, 2003	KLAC	M	3,000	$33.75	$101,250	6,196 Direct	+93.87%	Acquired	5417.8% (price as of 2026-08-20)
July 30, 2003	KLAC	A	3,750	—	—	3,750 Direct	—	Acquired	(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
June 28, 2005	KLAC	Non-Qualified Stock Option	Common Stock (712)	$40.66	Aug. 2, 2014	712	Disposed
June 28, 2005	KLAC	Non-Qualified Stock Option	Common Stock (1,740)	$44.69	Aug. 13, 2010	1,740	Disposed
June 28, 2005	KLAC	Non-Qualified Stock Option	Common Stock (13,260)	$44.69	Aug. 13, 2010	13,260	Disposed
June 28, 2005	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (712)	$40.66	Aug. 2, 2014	712	Disposed
June 28, 2005	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (1,187)	$45.16	April 26, 2014	1,187	Disposed
June 28, 2005	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (13,260)	$44.69	Aug. 13, 2010	13,260	Disposed
June 28, 2005	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (1,740)	$44.69	Aug. 13, 2010	1,740	Disposed
May 26, 2005	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (1,875)	$37.05	Nov. 8, 2012	1,875	Disposed
May 26, 2005	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (2,250)	$34.67	Jan. 28, 2013	2,250	Disposed
May 26, 2005	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (334)	$33.75	Oct. 27, 2009	334	Disposed
May 26, 2005	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (625)	$32.75	April 4, 2011	625	Disposed
May 26, 2005	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (1,875)	$29.31	Oct. 2, 2011	1,875	Disposed
May 26, 2005	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (750)	$26.25	Nov. 10, 2010	750	Disposed
Dec. 6, 2004	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (1,500)	$34.67	Jan. 28, 2013	1,500	Disposed
Dec. 6, 2004	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (5,500)	$32.75	April 4, 2011	5,500	Disposed
Dec. 6, 2004	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (8,250)	$29.31	Oct. 2, 2011	8,250	Disposed
Dec. 6, 2004	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (2,375)	$26.25	Nov. 10, 2010	2,375	Disposed
Sept. 21, 2004	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (15,000)	$41.79	Sept. 21, 2014	15,000	Acquired
Aug. 2, 2004	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (2,250)	$40.66	Aug. 2, 2014	2,250	Acquired
April 26, 2004	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (3,750)	$45.16	April 26, 2014	3,750	Acquired
Jan. 27, 2004	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (3,000)	$58.10	Jan. 27, 2014	3,000	Acquired
Oct. 27, 2003	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (6,000)	$53.86	Oct. 27, 2013	6,000	Acquired
Sept. 8, 2003	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (6,000)	$29.31	Oct. 2, 2011	6,000	Disposed
Sept. 8, 2003	KLAC	Non-Qualified Stock Option (right to buy)	Common Stock (3,000)	$33.75	Oct. 27, 2009	3,000	Disposed
July 30, 2003	KLAC	Non-Qualified Stock Option	Common Stock (3,750)	$51.23	July 30, 2013	3,750	Acquired

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