Mark W Sheahan

CIK 1190815 · View on SEC EDGAR ↗

Insider

First SEC filing: Feb. 17, 2026 · Latest: Feb. 17, 2026

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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

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 70 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

70 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 7, 2026	TNC	A	1,490	—	—	4,348 Direct	+52.13%	Acquired	(price as of 2026-08-20)
Feb. 13, 2026	GGG	A	194,650	—	—	194,650 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 29, 2026	GGG	M	63,510	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 29, 2026	GGG	F	40,219	$86.83	$3,492,216	119,009 Direct	-25.26%	Disposed	-4.8% (price as of 2026-08-20)
Jan. 29, 2026	GGG	M	63,510	$23.85	$1,514,714	159,228 Direct	+66.35%	Acquired	246.5% (price as of 2026-08-20)
Feb. 14, 2025	GGG	A	204,910	—	—	204,910 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 17, 2025	GGG	M	47,130	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 17, 2025	GGG	F	30,268	$85.14	$2,577,018	95,444 Direct	-24.08%	Disposed	-2.9% (price as of 2026-08-20)
Jan. 17, 2025	GGG	M	47,130	$24.79	$1,168,353	125,712 Direct	+59.98%	Acquired	233.3% (price as of 2026-08-20)
Feb. 16, 2024	GGG	A	189,910	—	—	189,910 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 5, 2024	GGG	M	43,080	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 5, 2024	GGG	F	14,961	$83.37	$1,247,299	78,221 Direct	-16.06%	Disposed	-0.9% (price as of 2026-08-20)
Jan. 5, 2024	GGG	S	12,884	$83.37	$1,074,139	93,182 Direct	-12.15%	Disposed	-0.9% (price as of 2026-08-20)
Jan. 5, 2024	GGG	M	43,080	$94.93	$4,089,584	106,066 Direct	+68.40%	Acquired	-13.0% (price as of 2026-08-20)
Jan. 5, 2024	GGG	F	27,845	$83.37	$2,321,438	78,221 Direct	-26.25%	Disposed	-0.9% (price as of 2026-08-20)
Jan. 5, 2024	GGG	M	43,080	$24.93	$1,073,984	106,066 Direct	+68.40%	Acquired	231.4% (price as of 2026-08-20)
July 31, 2023	GGG	P	1,263	$79.04	$99,828	62,986 Direct	+2.05%	Acquired	4.5% (price as of 2026-08-20)
Feb. 17, 2023	GGG	A	245,530	—	—	245,530 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 18, 2022	GGG	A	236,090	—	—	236,090 Direct	—	Acquired	(price as of 2026-08-20)
June 10, 2021	GGG	A	137,490	—	—	137,490 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 12, 2021	GGG	A	50,960	—	—	50,960 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 11, 2020	GGG	M	54,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 11, 2020	GGG	S	54,000	$67.79	$3,660,660	60,510 Direct	-47.16%	Disposed	21.9% (price as of 2026-08-20)
Nov. 11, 2020	GGG	M	54,000	$19.58	$1,057,320	114,510 Direct	+89.24%	Acquired	322.0% (price as of 2026-08-20)
Aug. 3, 2020	GGG	M	55,800	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 3, 2020	GGG	S	55,800	$53.58	$2,989,764	60,510 Direct	-47.98%	Disposed	54.2% (price as of 2026-08-20)
Aug. 3, 2020	GGG	M	55,800	$16.61	$926,838	116,310 Direct	+92.22%	Acquired	397.5% (price as of 2026-08-20)
Feb. 14, 2020	GGG	A	60,190	—	—	60,190 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 26, 2019	GGG	M	54,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 26, 2019	GGG	S	54,000	$47.17	$2,547,180	59,410 Direct	-47.61%	Disposed	75.2% (price as of 2026-08-20)
Feb. 26, 2019	GGG	M	54,000	$14.24	$768,960	113,410 Direct	+90.89%	Acquired	480.3% (price as of 2026-08-20)
Feb. 15, 2019	GGG	A	49,180	—	—	49,180 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 16, 2018	GGG	A	35,180	—	—	35,180 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 30, 2017	GGG	M	30,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 30, 2017	GGG	S	10,020	$132.05	$1,323,141	19,538 Direct	-33.90%	Disposed	87.7% (price as of 2026-08-20)
Oct. 30, 2017	GGG	S	19,980	$130.94	$2,616,181	29,558 Direct	-40.33%	Disposed	89.3% (price as of 2026-08-20)
Oct. 30, 2017	GGG	M	30,000	$27.17	$815,100	49,538 Direct	+153.55%	Acquired	812.4% (price as of 2026-08-20)
Feb. 17, 2017	GGG	A	17,540	—	—	17,540 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 10, 2016	GGG	M	47,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 10, 2016	GGG	S	47,000	$79.13	$3,719,110	19,223 Direct	-70.97%	Disposed	213.3% (price as of 2026-08-20)
Nov. 10, 2016	GGG	M	47,000	$20.80	$977,600	66,223 Direct	+244.50%	Acquired	1091.8% (price as of 2026-08-20)
Feb. 12, 2016	GGG	A	21,170	—	—	21,170 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 1, 2016	GGG	P	592	$69.53	$41,162	18,893 Direct	+3.23%	Acquired	256.5% (price as of 2026-08-20)
Feb. 13, 2015	GGG	A	15,710	—	—	15,710 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 14, 2014	GGG	A	14,360	—	—	14,360 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 1, 2013	GGG	M	30,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 1, 2013	GGG	M	22,500	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 1, 2013	GGG	S	900	$74.08	$66,672	17,549 Direct	-4.88%	Disposed	234.6% (price as of 2026-08-20)
Aug. 1, 2013	GGG	S	51,600	$73.38	$3,786,408	18,449 Direct	-73.66%	Disposed	237.8% (price as of 2026-08-20)
Aug. 1, 2013	GGG	M	30,000	$35.90	$1,077,000	70,049 Direct	+74.91%	Acquired	590.5% (price as of 2026-08-20)
Aug. 1, 2013	GGG	M	22,500	$41.36	$930,600	40,049 Direct	+128.21%	Acquired	499.3% (price as of 2026-08-20)
May 7, 2013	GGG	M	15,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 7, 2013	GGG	M	22,500	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 7, 2013	GGG	S	15,000	$61.62	$924,300	17,549 Direct	-46.08%	Disposed	302.3% (price as of 2026-08-20)
May 7, 2013	GGG	M	15,000	$38.13	$571,950	32,549 Direct	+85.47%	Acquired	550.1% (price as of 2026-08-20)
May 7, 2013	GGG	S	22,500	$61.62	$1,386,450	17,549 Direct	-56.18%	Disposed	302.3% (price as of 2026-08-20)
May 7, 2013	GGG	M	22,500	$40.68	$915,300	40,049 Direct	+128.21%	Acquired	509.4% (price as of 2026-08-20)
Feb. 15, 2013	GGG	A	18,000	—	—	18,000 Direct	—	Acquired	(price as of 2026-08-20)
May 18, 2012	GGG	M	18,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 18, 2012	GGG	S	18,000	$49.28	$887,040	16,444 Direct	-52.26%	Disposed	403.0% (price as of 2026-08-20)
May 18, 2012	GGG	M	18,000	$27.91	$502,380	34,444 Direct	+109.46%	Acquired	788.2% (price as of 2026-08-20)
May 11, 2012	GGG	M	9,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 11, 2012	GGG	S	9,000	$52.79	$475,110	16,444 Direct	-35.37%	Disposed	369.6% (price as of 2026-08-20)
May 11, 2012	GGG	M	9,000	$17.34	$156,060	25,444 Direct	+54.73%	Acquired	1329.6% (price as of 2026-08-20)
Feb. 17, 2012	GGG	A	18,600	—	—	18,600 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 31, 2011	GGG	S	2,812	$43.65	$122,744	16,444 Direct	-14.60%	Disposed	467.9% (price as of 2026-08-20)
Oct. 31, 2011	GGG	M	2,812	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 31, 2011	GGG	M	2,812	$18.39	$51,713	19,256 Direct	+17.10%	Acquired	1248.0% (price as of 2026-08-20)
Feb. 18, 2011	GGG	A	18,000	—	—	18,000 Direct	—	Acquired	(price as of 2026-08-20)
July 27, 2010	GGG	M	2,812	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
July 27, 2010	GGG	S	1,781	$32.06	$57,099	16,444 Direct	-9.77%	Disposed	673.2% (price as of 2026-08-20)
July 27, 2010	GGG	S	300	$32.08	$9,624	18,225 Direct	-1.62%	Disposed	672.7% (price as of 2026-08-20)
July 27, 2010	GGG	S	731	$32.07	$23,443	18,525 Direct	-3.80%	Disposed	673.0% (price as of 2026-08-20)
July 27, 2010	GGG	M	2,812	$12.38	$34,813	19,256 Direct	+17.10%	Acquired	1902.3% (price as of 2026-08-20)
Feb. 12, 2010	GGG	A	30,000	—	—	30,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 20, 2009	GGG	P	900	$18.24	$16,416	16,444 Direct	+5.79%	Acquired	1259.0% (price as of 2026-08-20)
Feb. 13, 2009	GGG	A	47,000	—	—	47,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 15, 2008	GGG	A	30,000	—	—	30,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 7, 2007	GGG	A	2,500	—	—	14,928 Direct	+20.12%	Acquired	(price as of 2026-08-20)
Feb. 16, 2007	GGG	A	22,500	$41.36	$930,600	22,500 Direct	—	Acquired	499.3% (price as of 2026-08-20)
Feb. 17, 2006	GGG	A	22,500	—	—	22,500 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 31, 2005	GGG	J	1	$36.48	$36	353 Indirect	+0.28%	Acquired	579.5% (price as of 2026-08-20)
Sept. 30, 2005	GGG	J	1	$34.28	$34	352 Indirect	+0.28%	Acquired	623.1% (price as of 2026-08-20)
June 30, 2005	GGG	J	2	$31.05	$62	351 Indirect	+0.57%	Acquired	698.4% (price as of 2026-08-20)
March 31, 2005	GGG	J	1	$40.36	$40	349 Indirect	+0.29%	Acquired	514.2% (price as of 2026-08-20)
March 4, 2005	GGG	M	2,812	$11.71	$32,929	13,999 Direct	+25.14%	Acquired	2016.9% (price as of 2026-08-20)
March 4, 2005	GGG	M	5,626	$18.39	$103,462	19,625 Direct	+40.19%	Acquired	1248.0% (price as of 2026-08-20)
March 4, 2005	GGG	M	9,000	$17.34	$156,060	28,625 Direct	+45.86%	Acquired	1329.6% (price as of 2026-08-20)
March 4, 2005	GGG	S	7,300	$39.49	$288,277	21,325 Direct	-25.50%	Disposed	527.7% (price as of 2026-08-20)
March 4, 2005	GGG	S	500	$39.48	$19,740	20,825 Direct	-2.34%	Disposed	527.9% (price as of 2026-08-20)
March 4, 2005	GGG	S	800	$39.47	$31,576	20,025 Direct	-3.84%	Disposed	528.0% (price as of 2026-08-20)
March 4, 2005	GGG	S	1,800	$39.46	$71,028	18,225 Direct	-8.99%	Disposed	528.2% (price as of 2026-08-20)
March 4, 2005	GGG	S	3,100	$39.45	$122,295	15,125 Direct	-17.01%	Disposed	528.4% (price as of 2026-08-20)
March 4, 2005	GGG	S	1,738	$39.44	$68,547	13,387 Direct	-11.49%	Disposed	528.5% (price as of 2026-08-20)
March 4, 2005	GGG	S	600	$39.43	$23,658	12,787 Direct	-4.48%	Disposed	528.7% (price as of 2026-08-20)
March 4, 2005	GGG	S	900	$39.42	$35,478	11,887 Direct	-7.04%	Disposed	528.8% (price as of 2026-08-20)
March 4, 2005	GGG	S	600	$39.41	$23,646	11,287 Direct	-5.05%	Disposed	529.0% (price as of 2026-08-20)
March 4, 2005	GGG	S	100	$39.39	$3,939	11,187 Direct	-0.89%	Disposed	529.3% (price as of 2026-08-20)
March 4, 2005	GGG	M	2,812	$11.71	$32,929	0 Direct	-100.00%	Disposed	2016.9% (price as of 2026-08-20)
March 4, 2005	GGG	M	9,000	$17.34	$156,060	9,000 Direct	-50.00%	Disposed	1329.6% (price as of 2026-08-20)

Showing latest 100 of 121 transactions

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
Feb. 13, 2026	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (194,650)	$94.28	Feb. 13, 2036	194,650	Acquired
Jan. 29, 2026	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (63,510)	$23.85	Feb. 12, 2026	63,510	Disposed
Feb. 14, 2025	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (204,910)	$86.06	Feb. 14, 2035	204,910	Acquired
Jan. 17, 2025	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (47,130)	$24.79	Feb. 13, 2025	47,130	Disposed
Feb. 16, 2024	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (189,910)	$88.64	Feb. 16, 2034	189,910	Acquired
Jan. 5, 2024	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (43,080)	$24.93	Feb. 14, 2024	43,080	Disposed
Feb. 17, 2023	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (245,530)	$71.47	Feb. 17, 2033	245,530	Acquired
Feb. 18, 2022	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (236,090)	$71.73	Feb. 18, 2032	236,090	Acquired
June 10, 2021	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (137,490)	$73.70	June 10, 2031	137,490	Acquired
Feb. 12, 2021	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (50,960)	$71.92	Feb. 12, 2031	50,960	Acquired
Nov. 11, 2020	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (54,000)	$19.58	Feb. 15, 2023	54,000	Disposed
Aug. 3, 2020	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (55,800)	$16.61	Feb. 17, 2022	55,800	Disposed
Feb. 14, 2020	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (60,190)	$56.35	Feb. 14, 2030	60,190	Acquired
Feb. 26, 2019	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (54,000)	—	Feb. 18, 2021	54,000	Disposed
Feb. 15, 2019	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (49,180)	$45.56	Feb. 15, 2029	49,180	Acquired
Feb. 16, 2018	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (35,180)	$43.90	Feb. 16, 2028	35,180	Acquired
Oct. 30, 2017	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (30,000)	—	Feb. 12, 2020	30,000	Disposed
Feb. 17, 2017	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (17,540)	$91.04	Feb. 17, 2027	17,540	Acquired
Nov. 10, 2016	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (47,000)	—	Feb. 13, 2019	47,000	Disposed
Feb. 12, 2016	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (21,170)	$71.54	Feb. 12, 2026	21,170	Acquired
Feb. 13, 2015	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (15,710)	$74.38	Feb. 13, 2025	15,710	Acquired
Feb. 14, 2014	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (14,360)	$74.80	Feb. 14, 2024	14,360	Acquired
Aug. 1, 2013	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (30,000)	$35.90	Feb. 15, 2018	30,000	Disposed
Aug. 1, 2013	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (22,500)	$41.36	Feb. 16, 2017	22,500	Disposed
May 7, 2013	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (15,000)	—	Feb. 18, 2015	15,000	Disposed
May 7, 2013	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (22,500)	—	Feb. 17, 2016	22,500	Disposed
Feb. 15, 2013	GGG	Non-qualified Stock Option (Right to Buy)	Common Stock (18,000)	$58.74	Feb. 15, 2023	18,000	Acquired
May 18, 2012	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (18,000)	$27.91	Feb. 20, 2014	18,000	Disposed
May 11, 2012	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (9,000)	$17.34	Feb. 21, 2013	9,000	Disposed
Feb. 17, 2012	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (18,600)	$49.84	Feb. 17, 2022	18,600	Acquired
Oct. 31, 2011	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (2,812)	$18.39	Feb. 22, 2012	2,812	Disposed
Feb. 18, 2011	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (18,000)	—	Feb. 18, 2021	18,000	Acquired
July 27, 2010	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (2,812)	$12.38	April 19, 2011	2,812	Disposed
Feb. 12, 2010	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (30,000)	—	Feb. 12, 2020	30,000	Acquired
Feb. 13, 2009	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (47,000)	—	Feb. 13, 2019	47,000	Acquired
Feb. 15, 2008	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (30,000)	—	Feb. 15, 2018	30,000	Acquired
Feb. 16, 2007	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (22,500)	—	Feb. 16, 2017	22,500	Acquired
Feb. 17, 2006	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (22,500)	—	Feb. 17, 2016	22,500	Acquired
March 4, 2005	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (2,812)	$11.71	Feb. 23, 2011	2,812	Disposed
March 4, 2005	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (9,000)	$17.34	Feb. 21, 2013	9,000	Disposed
March 4, 2005	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (5,626)	$18.39	Feb. 22, 2012	5,626	Disposed
Feb. 18, 2005	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (15,000)	—	Feb. 18, 2015	15,000	Acquired
Feb. 14, 2005	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (2,813)	$12.38	April 19, 2011	2,813	Disposed
Feb. 14, 2005	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (2,813)	$11.71	Feb. 23, 2011	2,813	Disposed
Feb. 14, 2005	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (4,218)	$9.09	Feb. 23, 2010	4,218	Disposed
Feb. 14, 2005	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (4,218)	$6.37	Feb. 22, 2009	4,218	Disposed
Feb. 20, 2004	GGG	Non-Qualified Stock Option (right to buy)	Common Stock (12,000)	$41.86	Feb. 20, 2014	12,000	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.

GGG

CEO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$1,065,000	—	—	—	$1,259,907	$1,364,000	$52,648	$9,491,330
2024	$1,025,000	—	—	—	$122,740	$1,687,000	$27,445	$8,361,979
2023	$985,000	—	—	—	$1,299,436	$1,425,000	$26,758	$9,236,066

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