William E Macdonald III

Insider

First SEC filing: Jan. 4, 2007 · Latest: Jan. 4, 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.

Insider at

LECO selling Nov. 12, 2020

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 87 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

87 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Dec. 9, 2021	LECO	A	1,066	—	—	15,450 Direct	+7.41%	Acquired	(price as of 2026-08-19)
Dec. 10, 2020	LECO	A	1,129	—	—	14,384 Direct	+8.52%	Acquired	(price as of 2026-08-19)
Nov. 12, 2020	LECO	S	5,000	$111.31	$556,550	13,255 Direct	-27.39%	Disposed	154.0% (price as of 2026-08-19)
Dec. 12, 2019	LECO	A	1,406	—	—	18,255 Direct	+8.34%	Acquired	(price as of 2026-08-19)
Dec. 13, 2018	LECO	A	1,542	—	—	16,849 Direct	+10.07%	Acquired	(price as of 2026-08-19)
Aug. 9, 2018	LECO	S	3,500	$92.96	$325,360	15,307 Direct	-18.61%	Disposed	204.1% (price as of 2026-08-19)
Dec. 14, 2017	LECO	A	1,391	—	—	18,807 Direct	-6.89%	Disposed	(price as of 2026-08-19)
May 3, 2017	LECO	S	5,500	$89.71	$493,405	17,416 Direct	-24.00%	Disposed	215.2% (price as of 2026-08-19)
Dec. 12, 2016	LECO	A	1,347	—	—	22,916 Direct	+6.25%	Acquired	(price as of 2026-08-19)
Dec. 14, 2015	LECO	A	1,989	—	—	21,569 Direct	+10.16%	Acquired	(price as of 2026-08-19)
Dec. 15, 2014	LECO	A	1,357	—	—	19,580 Direct	+7.45%	Acquired	(price as of 2026-08-19)
Dec. 17, 2013	LECO	A	1,262	—	—	18,223 Direct	+7.44%	Acquired	(price as of 2026-08-19)
Dec. 13, 2012	LECO	A	1,878	—	—	16,961 Direct	+12.45%	Acquired	(price as of 2026-08-19)
Nov. 2, 2011	LECO	A	2,531	—	—	15,083 Direct	+20.16%	Acquired	(price as of 2026-08-19)
Dec. 2, 2010	LECO	A	1,421	—	—	6,276 Direct	+29.27%	Acquired	(price as of 2026-08-19)
Dec. 1, 2009	LECO	A	948	—	—	4,855 Direct	+24.26%	Acquired	(price as of 2026-08-19)
Dec. 3, 2008	LECO	A	1,137	—	—	3,907 Direct	+41.05%	Acquired	(price as of 2026-08-19)
Oct. 30, 2008	LECO	P	100	$41.50	$4,150	2,770 Direct	+3.75%	Acquired	1262.5% (price as of 2026-08-19)
Oct. 30, 2008	LECO	P	300	$41.49	$12,447	0 Direct	—	Acquired	1262.9% (price as of 2026-08-19)
Oct. 30, 2008	LECO	P	100	$41.44	$4,144	0 Direct	—	Acquired	1264.5% (price as of 2026-08-19)
Nov. 28, 2007	LECO	A	729	—	—	2,270 Direct	+47.31%	Acquired	(price as of 2026-08-19)
Oct. 30, 2007	LECO	P	323	$73.97	$23,892	1,541 Direct	+26.52%	Acquired	664.4% (price as of 2026-08-19)
Oct. 30, 2007	LECO	P	177	$73.96	$13,091	0 Direct	—	Acquired	664.5% (price as of 2026-08-19)
Oct. 30, 2007	LECO	P	500	$73.94	$36,970	0 Direct	—	Acquired	664.7% (price as of 2026-08-19)
April 27, 2007	LECO	A	541	—	—	541 Direct	—	Acquired	(price as of 2026-08-19)
Dec. 29, 2006	69970	F	839	$36.56	$30,674	364,957 Direct	-0.23%	Disposed
Dec. 29, 2006	69970	J	2,000	—	—	365,796 Direct	+0.55%	Acquired
Dec. 29, 2006	69970	F	504	$36.56	$18,426	363,796 Direct	-0.14%	Disposed
Dec. 29, 2006	69970	J	1,200	—	—	364,300 Direct	+0.33%	Acquired
Dec. 29, 2006	69970	F	378	$36.56	$13,820	363,100 Direct	-0.10%	Disposed
Dec. 29, 2006	69970	J	900	—	—	363,478 Direct	+0.25%	Acquired
Dec. 29, 2006	69970	F	672	$36.56	$24,568	362,578 Direct	-0.18%	Disposed
Dec. 29, 2006	69970	J	1,600	—	—	363,250 Direct	+0.44%	Acquired
Dec. 29, 2006	69970	F	1,553	$36.56	$56,778	361,650 Direct	-0.43%	Disposed
Dec. 29, 2006	69970	J	3,700	—	—	363,203 Direct	+1.03%	Acquired
Dec. 29, 2006	69970	F	2,811	$36.56	$102,770	359,503 Direct	-0.78%	Disposed
Dec. 29, 2006	69970	J	6,700	—	—	362,314 Direct	+1.88%	Acquired
Dec. 29, 2006	69970	F	5,999	$36.56	$219,323	355,614 Direct	-1.66%	Disposed
Dec. 29, 2006	69970	J	14,299	—	—	361,613 Direct	+4.12%	Acquired
Dec. 29, 2006	69970	F	13,729	$36.56	$501,932	347,314 Direct	-3.80%	Disposed
Dec. 29, 2006	69970	J	32,727	—	—	361,043 Direct	+9.97%	Acquired
June 27, 2006	69970	M	49,695	—	—	0 Direct	-100.00%	Disposed
June 27, 2006	69970	M	54,859	—	—	0 Direct	-100.00%	Disposed
June 27, 2006	69970	F	43,698	$36.22	$1,582,742	328,316 Direct	-11.75%	Disposed
June 27, 2006	69970	M	49,695	$28.69	$1,425,750	372,014 Direct	+15.42%	Acquired
June 27, 2006	69970	F	46,972	$36.22	$1,701,326	322,319 Direct	-12.72%	Disposed
June 27, 2006	69970	M	54,859	$27.25	$1,494,908	369,291 Direct	+17.45%	Acquired
April 22, 2006	69970	J	4,864	—	—	48,827 Direct	-9.06%	Disposed
April 22, 2006	69970	F	2,041	$35.76	$72,986	314,432 Direct	-0.64%	Disposed
April 22, 2006	69970	J	4,864	—	—	316,473 Direct	+1.56%	Acquired
March 15, 2006	69970	A	14,299	—	—	14,299 Direct	—	Acquired
March 15, 2006	69970	M	45,792	—	—	0 Direct	-100.00%	Disposed
March 15, 2006	69970	F	44,386	$35.37	$1,569,933	311,609 Direct	-12.47%	Disposed
March 15, 2006	69970	M	45,792	$33.50	$1,534,032	355,995 Direct	+14.76%	Acquired
March 1, 2006	69970	J	20,887	—	—	53,691 Direct	-28.01%	Disposed
March 1, 2006	69970	F	6,674	$34.80	$232,255	310,203 Direct	-2.11%	Disposed
March 1, 2006	69970	J	20,887	—	—	316,877 Direct	+7.06%	Acquired
Aug. 31, 2005	69970	A	32,727	—	—	74,578 Direct	+78.20%	Acquired
Aug. 31, 2005	69970	A	60,000	—	—	60,000 Direct	—	Acquired
April 22, 2005	69970	J	4,864	—	—	41,851 Direct	-10.41%	Disposed
April 22, 2005	69970	F	2,041	$32.80	$66,945	295,990 Direct	-0.68%	Disposed
April 22, 2005	69970	J	4,864	—	—	298,031 Direct	+1.66%	Acquired
March 15, 2005	69970	A	20,887	—	—	46,715 Direct	+80.87%	Acquired
March 1, 2005	69970	J	17,614	—	—	25,828 Direct	-40.55%	Disposed
March 1, 2005	69970	F	5,628	$35.77	$201,314	293,167 Direct	-1.88%	Disposed
March 1, 2005	69970	J	17,614	—	—	298,795 Direct	+6.26%	Acquired
Sept. 10, 2004	69970	M	5,614	—	—	0 Direct	-100.00%	Disposed
Sept. 10, 2004	69970	A	2,640	—	—	2,640 Direct	—	Acquired
Sept. 10, 2004	69970	M	3,586	—	—	0 Direct	-100.00%	Disposed
Sept. 10, 2004	69970	A	2,639	—	—	2,639 Direct	—	Acquired
Sept. 10, 2004	69970	M	3,484	—	—	0 Direct	-100.00%	Disposed
Sept. 10, 2004	69970	M	18,706	—	—	0 Direct	-100.00%	Disposed
Sept. 10, 2004	69970	M	8,736	—	—	0 Direct	-100.00%	Disposed
Sept. 10, 2004	69970	A	2,641	—	—	2,641 Direct	—	Acquired
Sept. 10, 2004	69970	F	2,641	$37.86	$99,988	281,181 Direct	-0.93%	Disposed
Sept. 10, 2004	69970	F	2,640	$37.86	$99,950	283,822 Direct	-0.92%	Disposed
Sept. 10, 2004	69970	F	2,639	$37.86	$99,913	286,462 Direct	-0.91%	Disposed
Sept. 10, 2004	69970	F	14,908	$37.86	$564,417	289,101 Direct	-4.90%	Disposed
Sept. 10, 2004	69970	F	5,549	$37.86	$210,085	304,009 Direct	-1.79%	Disposed
Sept. 10, 2004	69970	M	5,614	$17.81	$99,985	309,558 Direct	+1.85%	Acquired
Sept. 10, 2004	69970	M	3,586	$27.88	$99,978	303,944 Direct	+1.19%	Acquired
Sept. 10, 2004	69970	M	3,484	$28.69	$99,956	300,358 Direct	+1.17%	Acquired
Sept. 10, 2004	69970	M	18,706	$26.56	$496,831	296,874 Direct	+6.72%	Acquired
Sept. 10, 2004	69970	M	8,736	$17.56	$153,404	278,168 Direct	+3.24%	Acquired
July 26, 2004	69970	A	225,000	—	—	225,000 Direct	—	Acquired
March 15, 2004	69970	A	17,614	—	—	43,442 Direct	+68.20%	Acquired
March 1, 2004	69970	D	17,262	—	—	25,828 Direct	-40.06%	Disposed
March 1, 2004	69970	F	5,516	$35.70	$196,921	269,432 Direct	-2.01%	Disposed
March 1, 2004	69970	A	17,262	—	—	274,948 Direct	+6.70%	Acquired
Jan. 8, 2004	69970	M	13,818	—	—	0 Direct	-100.00%	Disposed
Jan. 8, 2004	69970	F	2,090	$33.09	$69,158	257,686 Direct	-0.80%	Disposed
Jan. 8, 2004	69970	M	13,818	$17.56	$242,644	259,776 Direct	+5.62%	Acquired
Jan. 7, 2004	69970	M	11,830	—	—	0 Direct	-100.00%	Disposed
Jan. 7, 2004	69970	F	10,367	$33.20	$344,184	245,958 Direct	-4.04%	Disposed
Jan. 7, 2004	69970	M	11,830	$26.56	$314,205	256,325 Direct	+4.84%	Acquired
July 29, 2003	69970	A	225,000	—	—	225,000 Direct	—	Acquired

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 27, 2006	69970	Option (Right to Buy)	Common Stock (49,695)	$28.69	July 22, 2006	49,695	Disposed
June 27, 2006	69970	Option (Right to Buy)	Common Stock (54,859)	$27.25	July 22, 2006	54,859	Disposed
March 15, 2006	69970	Restricted Stock Units [F1]	Common Stock (14,299)	—	—	14,299	Acquired
March 15, 2006	69970	Options (Right to Buy)	Common Stock (45,792)	$33.50	July 22, 2006	45,792	Disposed
Aug. 31, 2005	69970	Options (Right to Buy)	Common Stock (60,000)	$36.03	Aug. 31, 2015	60,000	Acquired
Sept. 10, 2004	69970	Options (Rights to Buy)	Common Stock (5,614)	$17.81	June 20, 2010	5,614	Disposed
Sept. 10, 2004	69970	Options (Right to Buy)	Common Stock (2,640)	$37.86	Aug. 10, 2009	2,640	Acquired
Sept. 10, 2004	69970	Options (Right to Buy)	Common Stock (3,586)	$27.88	Aug. 10, 2009	3,586	Disposed
Sept. 10, 2004	69970	Options (Right to Buy)	Common Stock (2,639)	$37.86	July 28, 2007	2,639	Acquired
Sept. 10, 2004	69970	Options (Right to Buy)	Common Stock (3,484)	$28.69	July 28, 2007	3,484	Disposed
Sept. 10, 2004	69970	Options (Right to Buy)	Common Stock (18,706)	$26.56	June 14, 2005	18,706	Disposed
Sept. 10, 2004	69970	Options (Right to Buy)	Common Stock (8,736)	$17.56	June 14, 2005	8,736	Disposed
Sept. 10, 2004	69970	IOptions (Right to Buy)	Common Stock (2,641)	$37.86	June 20, 2010	2,641	Acquired
July 26, 2004	69970	Options (Right to Buy)	Common Stock (225,000)	$35.80	July 26, 2014	225,000	Acquired
Jan. 8, 2004	69970	Options (Right to Buy)	Common Stock (13,818)	$17.56	July 6, 2004	13,818	Disposed
Jan. 7, 2004	69970	Options (Right to Buy)	Common Stock (11,830)	$26.56	July 6, 2004	11,830	Disposed
July 29, 2003	69970	Options (Right to Buy)	Common Stock (225,000)	$33.83	July 29, 2013	225,000	Acquired

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

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
May 1, 2007	LECO	Common Shares	0	Direct