Michelle Brennan

Insider

First SEC filing: June 12, 2026 · Latest: June 12, 2026

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

CAH buying Nov. 15, 2022

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 21 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

21 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 10, 2026	MASI	D	1,119	—	—	0 Direct	-100.00%	Disposed
June 10, 2026	MASI	D	9,309	$180.00	$1,675,620	0 Direct	-100.00%	Disposed
April 29, 2026	MASI	M	1,225	—	—	0 Direct	-100.00%	Disposed
April 29, 2026	MASI	M	1,225	—	—	8,543 Direct	+16.74%	Acquired
April 23, 2026	MASI	A	1,119	$178.71	$199,976	2,238 Direct	+100.00%	Acquired
Aug. 13, 2025	MASI	P	100	$155.25	$15,525	7,318 Direct	+1.39%	Acquired
Aug. 12, 2025	MASI	P	100	$150.35	$15,035	7,218 Direct	+1.40%	Acquired
April 29, 2025	MASI	A	766	—	—	766 Direct	—	Acquired
April 29, 2025	MASI	A	1,225	—	—	1,225 Direct	—	Acquired
April 29, 2025	MASI	M	1,790	—	—	0 Direct	-100.00%	Disposed
April 29, 2025	MASI	M	1,790	—	—	7,118 Direct	+33.60%	Acquired
Feb. 12, 2025	MASI	M	8,916	—	—	0 Direct	-100.00%	Disposed
Feb. 12, 2025	MASI	F	4,816	$179.51	$864,520	5,328 Direct	-47.48%	Disposed
Feb. 12, 2025	MASI	A	8,916	—	—	10,144 Direct	+726.06%	Acquired
Nov. 11, 2024	MASI	A	8,916	—	—	8,916 Direct	—	Acquired
Nov. 6, 2024	CAH	A	1,730	—	—	7,019 Direct	+32.71%	Acquired	(price as of 2026-08-20)
Sept. 19, 2024	MASI	A	1,790	—	—	1,790 Direct	—	Acquired
June 26, 2024	MASI	M	1,228	—	—	1,228 Direct	—	Acquired
Nov. 15, 2023	CAH	A	1,965	—	—	5,289 Direct	+59.12%	Acquired	(price as of 2026-08-20)
June 26, 2023	MASI	M	1,228	—	—	0 Direct	-100.00%	Disposed
June 26, 2023	MASI	A	1,228	—	—	1,228 Direct	—	Acquired
Nov. 15, 2022	CAH	P	200	$74.72	$14,944	3,324 Direct	+6.40%	Acquired	210.3% (price as of 2026-08-20)
Nov. 14, 2022	CAH	P	200	$76.30	$15,260	3,124 Direct	+6.84%	Acquired	203.9% (price as of 2026-08-20)
Nov. 10, 2022	CAH	P	150	$79.74	$11,961	2,924 Direct	+5.41%	Acquired	190.8% (price as of 2026-08-20)
Nov. 9, 2022	CAH	A	2,308	—	—	2,774 Direct	+495.28%	Acquired	(price as of 2026-08-20)
Sept. 15, 2022	CAH	A	466	—	—	466 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 10, 2026	MASI	Restricted Stock Units	Common Stock (1,119)	—	—	1,119	Disposed
April 29, 2026	MASI	Restricted Stock Units	Common Stock (1,225)	—	April 29, 2035	1,225	Disposed
April 23, 2026	MASI	Restricted Stock Units	Common Stock (1,119)	—	April 23, 2036	1,119	Acquired
April 29, 2025	MASI	Restricted Stock Units	Common Stock (766)	—	April 29, 2035	766	Acquired
April 29, 2025	MASI	Restricted Stock Units	Common Stock (1,225)	—	April 29, 2035	1,225	Acquired
April 29, 2025	MASI	Restricted Stock Units	Common Stock (1,790)	—	Sept. 19, 2034	1,790	Disposed
Feb. 12, 2025	MASI	Restricted Stock Units	Common Stock	—	—	8,916	Disposed
Nov. 11, 2024	MASI	Restricted Stock Units	Common Stock (8,916)	—	—	8,916	Acquired
Sept. 19, 2024	MASI	Restricted Stock Units	Common Stock (1,790)	—	Sept. 19, 2034	1,790	Acquired
June 26, 2023	MASI	Restricted Stock Units	Common Stock (1,228)	—	June 25, 2033	1,228	Disposed
June 26, 2023	MASI	Restricted Stock Units	Common Stock (1,228)	—	June 25, 2033	1,228	Acquired

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