Thomas Samuel Mcclenahan

Insider

First SEC filing: April 25, 2013 · Latest: April 25, 2013

On this page

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 transactions

0 buys (P) 0 sells (S) Net: $0 + 75 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

75 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D
March 1, 2024	MASI	A	30,000	—	—	30,000 Direct	—	Acquired
March 1, 2024	MASI	A	11,954	—	—	11,954 Direct	—	Acquired
Feb. 28, 2024	MASI	F	394	$128.70	$50,708	36,747 Direct	-1.06%	Disposed
Feb. 28, 2024	MASI	A	1,004	—	—	37,141 Direct	+2.78%	Acquired
March 3, 2023	MASI	A	8,802	—	—	8,802 Direct	—	Acquired
March 3, 2023	MASI	F	2,668	$182.43	$486,723	36,137 Direct	-6.88%	Disposed
March 3, 2023	MASI	A	5,016	—	—	38,805 Direct	+14.85%	Acquired
Feb. 22, 2022	MASI	A	6,362	$157.53	$1,002,206	6,362 Direct	—	Acquired
Feb. 14, 2022	MASI	A	9,302	—	—	33,789 Direct	+37.99%	Acquired
Jan. 2, 2022	MASI	M	2,000	—	—	2,000 Direct	-50.00%	Disposed
Jan. 2, 2022	MASI	F	1,084	$292.78	$317,374	24,487 Direct	-4.24%	Disposed
Jan. 2, 2022	MASI	M	2,000	—	—	25,571 Direct	+8.49%	Acquired
May 11, 2021	MASI	P 10b5-1	500	$214.40	$107,200	23,571 Direct	+2.17%	Acquired
May 3, 2021	MASI	P 10b5-1	500	$230.00	$115,000	23,071 Direct	+2.22%	Acquired
April 30, 2021	MASI	P 10b5-1	500	$233.24	$116,620	22,571 Direct	+2.27%	Acquired
Feb. 26, 2021	MASI	A	3,956	$250.73	$991,888	3,956 Direct	—	Acquired
Feb. 22, 2021	MASI	A	14,593	—	—	22,071 Direct	+195.15%	Acquired
Jan. 2, 2021	MASI	M	2,000	—	—	2,000 Direct	-50.00%	Disposed
Jan. 2, 2021	MASI	F	786	$268.38	$210,947	7,478 Direct	-9.51%	Disposed
Jan. 2, 2021	MASI	M	2,000	—	—	8,264 Direct	+31.93%	Acquired
Oct. 7, 2020	MASI	M	5,000	$31.01	$155,050	19,000 Direct	-20.83%	Disposed
Oct. 7, 2020	MASI	M	5,000	$28.03	$140,150	0 Direct	-100.00%	Disposed
Oct. 7, 2020	MASI	S 10b5-1	5,000	$254.00	$1,270,000	6,264 Direct	-44.39%	Disposed
Oct. 7, 2020	MASI	M	5,000	$31.01	$155,050	11,264 Direct	+79.82%	Acquired
Oct. 7, 2020	MASI	S 10b5-1	5,000	$254.00	$1,270,000	6,264 Direct	-44.39%	Disposed
Oct. 7, 2020	MASI	M	5,000	$28.03	$140,150	11,264 Direct	+79.82%	Acquired
April 14, 2020	MASI	M	7,000	$28.03	$196,210	5,000 Direct	-58.33%	Disposed
April 14, 2020	MASI	M	3,000	$19.72	$59,160	0 Direct	-100.00%	Disposed
April 14, 2020	MASI	S 10b5-1	7,000	$191.01	$1,337,070	6,264 Direct	-52.77%	Disposed
April 14, 2020	MASI	M	7,000	$28.03	$196,210	13,264 Direct	+111.75%	Acquired
April 14, 2020	MASI	S 10b5-1	3,000	$191.00	$573,000	6,264 Direct	-32.38%	Disposed
April 14, 2020	MASI	M	3,000	$19.72	$59,160	9,264 Direct	+47.89%	Acquired
March 12, 2020	MASI	A	6,633	$179.42	$1,190,093	6,633 Direct	—	Acquired
Feb. 6, 2020	MASI	M	1,323	$19.72	$26,090	3,000 Direct	-30.60%	Disposed
Feb. 6, 2020	MASI	S 10b5-1	1,323	$176.04	$232,901	6,264 Direct	-17.44%	Disposed
Feb. 6, 2020	MASI	M	1,323	$19.72	$26,090	7,587 Direct	+21.12%	Acquired
Feb. 5, 2020	MASI	M	7,477	$19.72	$147,446	4,323 Direct	-63.36%	Disposed
Feb. 5, 2020	MASI	S 10b5-1	7,477	$176.50	$1,319,690	6,264 Direct	-54.41%	Disposed
Feb. 5, 2020	MASI	M	7,477	$19.72	$147,446	13,741 Direct	+119.36%	Acquired
Feb. 4, 2020	MASI	M	1,200	$19.72	$23,664	11,800 Direct	-9.23%	Disposed
Feb. 4, 2020	MASI	S 10b5-1	1,200	$176.01	$211,212	6,264 Direct	-16.08%	Disposed
Feb. 4, 2020	MASI	M	1,200	$19.72	$23,664	7,464 Direct	+19.16%	Acquired
Jan. 2, 2020	MASI	M	2,000	—	—	4,000 Direct	-33.33%	Disposed
Jan. 2, 2020	MASI	F	736	$158.58	$116,715	6,264 Direct	-10.51%	Disposed
Jan. 2, 2020	MASI	M	2,000	—	—	7,000 Direct	+40.00%	Acquired
Dec. 20, 2019	MASI	M	7,000	$19.72	$138,040	13,000 Direct	-35.00%	Disposed
Dec. 20, 2019	MASI	M	907	$22.40	$20,317	0 Direct	-100.00%	Disposed
Dec. 20, 2019	MASI	S 10b5-1	7,000	$159.03	$1,113,210	5,000 Direct	-58.33%	Disposed
Dec. 20, 2019	MASI	M	7,000	$19.72	$138,040	12,000 Direct	+140.00%	Acquired
Dec. 20, 2019	MASI	S 10b5-1	907	$159.02	$144,231	5,000 Direct	-15.35%	Disposed
Dec. 20, 2019	MASI	M	907	$22.40	$20,317	5,907 Direct	+18.14%	Acquired
Dec. 19, 2019	MASI	M	500	$22.40	$11,200	907 Direct	-35.54%	Disposed
Dec. 19, 2019	MASI	S 10b5-1	500	$159.29	$79,645	5,000 Direct	-9.09%	Disposed
Dec. 19, 2019	MASI	M	500	$22.40	$11,200	5,500 Direct	+10.00%	Acquired
Dec. 18, 2019	MASI	M	986	$22.40	$22,086	1,407 Direct	-41.20%	Disposed
Dec. 18, 2019	MASI	S 10b5-1	986	$159.00	$156,774	5,000 Direct	-16.47%	Disposed
Dec. 18, 2019	MASI	M	986	$22.40	$22,086	5,986 Direct	+19.72%	Acquired
Dec. 17, 2019	MASI	M	607	$22.40	$13,597	2,393 Direct	-20.23%	Disposed
Dec. 17, 2019	MASI	S 10b5-1	607	$159.00	$96,513	5,000 Direct	-10.83%	Disposed
Dec. 17, 2019	MASI	M	607	$22.40	$13,597	5,607 Direct	+12.14%	Acquired
March 15, 2019	MASI	A	7,235	$133.50	$965,872	7,235 Direct	—	Acquired
Jan. 2, 2019	MASI	M	2,000	—	—	6,000 Direct	-25.00%	Disposed
Jan. 2, 2019	MASI	M	2,000	—	—	5,000 Direct	+66.67%	Acquired
Dec. 10, 2018	MASI	M	1,000	$22.40	$22,400	3,000 Direct	-25.00%	Disposed
Dec. 10, 2018	MASI	M	1,000	$22.40	$22,400	3,000 Direct	+50.00%	Acquired
March 16, 2018	MASI	A	10,436	$86.95	$907,410	10,436 Direct	—	Acquired
Feb. 27, 2018	MASI	M	2,000	—	—	8,000 Direct	-20.00%	Disposed
Feb. 27, 2018	MASI	A	10,000	—	—	10,000 Direct	—	Acquired
Feb. 27, 2018	MASI	M	2,000	—	—	2,000 Direct	—	Acquired
June 5, 2017	MASI	A	10,000	—	—	10,000 Direct	—	Acquired
April 28, 2017	MASI	M	2,000	$28.03	$56,060	2,000 Direct	—	Acquired
April 28, 2017	MASI	S 10b5-1	2,000	$102.75	$205,500	0 Direct	-100.00%	Disposed
April 28, 2017	MASI	M	6,000	$31.01	$186,060	6,000 Direct	—	Acquired
April 28, 2017	MASI	S 10b5-1	6,000	$102.75	$616,500	0 Direct	-100.00%	Disposed
April 28, 2017	MASI	M	2,000	$28.03	$56,060	12,000 Direct	-14.29%	Disposed
April 28, 2017	MASI	M	6,000	$31.01	$186,060	24,000 Direct	-20.00%	Disposed
April 24, 2017	MASI	M	10,000	$28.03	$280,300	14,000 Direct	-41.67%	Disposed
April 24, 2017	MASI	S 10b5-1	10,000	$98.75	$987,500	0 Direct	-100.00%	Disposed
April 24, 2017	MASI	M	10,000	$28.03	$280,300	10,000 Direct	—	Acquired
April 20, 2017	MASI	M	4,000	$19.72	$78,880	4,000 Direct	—	Acquired
April 20, 2017	MASI	S 10b5-1	4,000	$95.75	$383,000	0 Direct	-100.00%	Disposed
April 20, 2017	MASI	M	6,000	$28.03	$168,180	24,000 Direct	-20.00%	Disposed
April 20, 2017	MASI	M	4,000	$19.72	$78,880	20,000 Direct	-16.67%	Disposed
April 20, 2017	MASI	S 10b5-1	6,000	$95.75	$574,500	0 Direct	-100.00%	Disposed
April 20, 2017	MASI	M	6,000	$28.03	$168,180	6,000 Direct	—	Acquired
Dec. 16, 2016	MASI	M	10,000	—	—	24,000 Direct	-29.41%	Disposed
Dec. 16, 2016	MASI	S 10b5-1	10,000	$66.00	$660,000	0 Direct	-100.00%	Disposed
Dec. 16, 2016	MASI	M	10,000	$19.72	$197,200	10,000 Direct	—	Acquired
Dec. 7, 2016	MASI	M	2,293	$19.72	$45,218	2,293 Direct	—	Acquired
Dec. 7, 2016	MASI	M	2,293	—	—	34,000 Direct	-6.32%	Disposed
Dec. 7, 2016	MASI	S 10b5-1	2,293	$63.00	$144,459	0 Direct	-100.00%	Disposed
Dec. 6, 2016	MASI	M	4,000	$22.40	$89,600	4,000 Direct	—	Acquired
Dec. 6, 2016	MASI	S 10b5-1	3,707	—	—	0 Direct	-100.00%	Disposed
Dec. 6, 2016	MASI	M	3,707	—	—	36,293 Direct	-9.27%	Disposed
Dec. 6, 2016	MASI	M	4,000	—	—	4,000 Direct	-50.00%	Disposed
Dec. 6, 2016	MASI	M	3,707	$19.72	$73,102	3,707 Direct	—	Acquired
Dec. 6, 2016	MASI	S 10b5-1	4,000	$63.00	$252,000	0 Direct	-100.00%	Disposed
Sept. 30, 2016	MASI	M	10,000	—	—	0 Direct	-100.00%	Disposed
Sept. 30, 2016	MASI	S 10b5-1	10,000	$59.00	$590,000	0 Direct	-100.00%	Disposed
Sept. 30, 2016	MASI	M	10,000	$34.79	$347,900	10,000 Direct	—	Acquired

Showing latest 100 of 110 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
March 1, 2024	MASI	Restricted Stock Units	Common Stock (30,000)	—	—	30,000	Acquired
March 1, 2024	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (11,954)	$126.49	March 1, 2034	11,954	Acquired
March 3, 2023	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (8,802)	$182.43	March 3, 2033	8,802	Acquired
Feb. 22, 2022	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (6,362)	$157.53	Feb. 22, 2032	6,362	Acquired
Jan. 2, 2022	MASI	Restricted Stock Units	Common Stock (2,000)	—	—	2,000	Disposed
Feb. 26, 2021	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (3,956)	$250.73	Feb. 26, 2031	3,956	Acquired
Jan. 2, 2021	MASI	Restricted Stock Units	Common Stock (2,000)	—	—	2,000	Disposed
Oct. 7, 2020	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (5,000)	$31.01	March 20, 2025	5,000	Disposed
Oct. 7, 2020	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (5,000)	$28.03	Feb. 18, 2024	5,000	Disposed
April 14, 2020	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (7,000)	$28.03	Feb. 18, 2024	7,000	Disposed
April 14, 2020	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (3,000)	$19.72	April 25, 2023	3,000	Disposed
March 12, 2020	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (6,633)	$179.42	March 12, 2030	6,633	Acquired
Feb. 6, 2020	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (1,323)	$19.72	April 25, 2023	1,323	Disposed
Feb. 5, 2020	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (7,477)	$19.72	April 25, 2023	7,477	Disposed
Feb. 4, 2020	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (1,200)	$19.72	April 25, 2023	1,200	Disposed
Jan. 2, 2020	MASI	Restricted Stock Units	Common Stock (2,000)	—	—	2,000	Disposed
Dec. 20, 2019	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (7,000)	$19.72	April 25, 2023	7,000	Disposed
Dec. 20, 2019	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (907)	$22.40	July 31, 2022	907	Disposed
Dec. 19, 2019	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (500)	$22.40	July 31, 2022	500	Disposed
Dec. 18, 2019	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (986)	$22.40	July 31, 2022	986	Disposed
Dec. 17, 2019	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (607)	$22.40	July 31, 2022	607	Disposed
March 15, 2019	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (7,235)	$133.50	March 15, 2029	7,235	Acquired
Jan. 2, 2019	MASI	Restricted Stock Units	Common Stock (2,000)	—	—	2,000	Disposed
Dec. 10, 2018	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (1,000)	$22.40	July 31, 2022	1,000	Disposed
March 16, 2018	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (10,436)	$86.95	March 16, 2028	10,436	Acquired
Feb. 27, 2018	MASI	Restricted Stock Units	Common Stock (2,000)	—	—	2,000	Disposed
Feb. 27, 2018	MASI	Restricted Stock Units	Common Stock (10,000)	—	—	10,000	Acquired
June 5, 2017	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (10,000)	$90.87	June 5, 2027	10,000	Acquired
April 28, 2017	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (2,000)	$28.03	Feb. 18, 2024	2,000	Disposed
April 28, 2017	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (6,000)	$31.01	March 20, 2025	6,000	Disposed
April 24, 2017	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (10,000)	$28.03	Feb. 18, 2024	10,000	Disposed
April 20, 2017	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (6,000)	$28.03	Feb. 18, 2024	6,000	Disposed
April 20, 2017	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (4,000)	$19.72	April 25, 2023	4,000	Disposed
Dec. 16, 2016	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (10,000)	$19.72	April 25, 2023	10,000	Disposed
Dec. 7, 2016	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (2,293)	$19.72	April 25, 2023	2,293	Disposed
Dec. 6, 2016	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (3,707)	$19.72	April 25, 2023	3,707	Disposed
Dec. 6, 2016	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (4,000)	$22.40	July 31, 2022	4,000	Disposed
Sept. 30, 2016	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (10,000)	$34.79	April 29, 2021	10,000	Disposed
Feb. 29, 2016	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (30,000)	$37.84	March 1, 2026	30,000	Acquired
Aug. 31, 2015	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (10,000)	$19.72	April 25, 2023	10,000	Disposed
Aug. 31, 2015	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (12,000)	$22.40	July 31, 2022	12,000	Disposed
March 20, 2015	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (30,000)	$31.01	March 20, 2025	30,000	Acquired
Feb. 18, 2014	MASI	Non-Qualified Stock Option (Right to Buy)	Common Stock (30,000)	$28.03	Feb. 18, 2024	30,000	Acquired
April 25, 2013	MASI	Non-qualified Stock Option (Right to Buy)	Common Stock (50,000)	$19.72	April 25, 2023	50,000	Acquired

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

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
April 25, 2013	MASI	Non-qualified Stock Option (Right to buy)→ Common Stock (20,000)	20,000	Direct
April 25, 2013	MASI	Non-qualified Stock Option (Right to buy)→ Common Stock (10,000)	10,000	Direct