John Michael Custer

Insider

First SEC filing: Jan. 16, 2026 · Latest: Jan. 16, 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.

Insider at

WSO selling June 10, 2025

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 18 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

18 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 10, 2025	WSO	S	2,200	$448.27	$986,194	3,552 Direct	-38.25%	Disposed	-28.1% (price as of 2026-08-19)
June 6, 2024	WSO	M	1,666	$260.28	$433,626	0 Direct	-100.00%	Disposed	23.8% (price as of 2026-08-19)
June 6, 2024	WSO	M	1,666	$260.28	$433,626	1,666 Direct	—	Acquired	23.8% (price as of 2026-08-19)
Aug. 1, 2023	WSO	A	2,000	$376.95	$753,900	2,000 Direct	—	Acquired	-14.5% (price as of 2026-08-19)
June 6, 2023	WSO	M	1,667	$260.28	$433,887	1,666 Direct	-50.02%	Disposed	23.8% (price as of 2026-08-19)
June 6, 2023	WSO	F	1,257	$345.02	$433,690	410 Direct	-75.40%	Disposed	-6.6% (price as of 2026-08-19)
June 6, 2023	WSO	M	1,667	$260.28	$433,887	0 Direct	—	Acquired	23.8% (price as of 2026-08-19)
Feb. 27, 2023	WSO	M	1,667	$260.28	$433,887	3,333 Direct	-33.34%	Disposed	23.8% (price as of 2026-08-19)
Feb. 27, 2023	WSO	M	2,500	$175.07	$437,675	0 Direct	-100.00%	Disposed	84.0% (price as of 2026-08-19)
Feb. 27, 2023	WSO	M	5,000	$160.69	$803,450	0 Direct	-100.00%	Disposed	100.5% (price as of 2026-08-19)
Feb. 27, 2023	WSO	F	1,422	$304.99	$433,696	245 Direct	-85.30%	Disposed	5.6% (price as of 2026-08-19)
Feb. 27, 2023	WSO	M	1,667	$260.28	$433,887	0 Direct	—	Acquired	23.8% (price as of 2026-08-19)
Feb. 27, 2023	WSO	F	1,435	$304.99	$437,661	1,065 Direct	-57.40%	Disposed	5.6% (price as of 2026-08-19)
Feb. 27, 2023	WSO	M	2,500	$175.07	$437,675	0 Direct	—	Acquired	84.0% (price as of 2026-08-19)
Feb. 27, 2023	WSO	F	2,634	$304.99	$803,344	2,366 Direct	-52.68%	Disposed	5.6% (price as of 2026-08-19)
Feb. 27, 2023	WSO	M	5,000	$160.69	$803,450	0 Direct	—	Acquired	100.5% (price as of 2026-08-19)
June 6, 2022	WSO	A	5,000	$260.28	$1,301,400	5,000 Direct	—	Acquired	23.8% (price as of 2026-08-19)
June 1, 2020	WSO	A	2,500	$175.07	$437,675	2,500 Direct	—	Acquired	84.0% (price as of 2026-08-19)
June 3, 2019	WSO	A	5,000	$160.69	$803,450	5,000 Direct	—	Acquired	100.5% (price as of 2026-08-19)

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 6, 2024	WSO	Stock Option (right to buy)	Common stock (1,666)	$260.28	June 6, 2027	1,666	Disposed
Aug. 1, 2023	WSO	Stock Option (right to buy)	Common Stock (2,000)	$376.95	Aug. 1, 2028	2,000	Acquired
June 6, 2023	WSO	Stock Option (right to buy)	Common Stock (5,000)	$260.28	June 6, 2027	1,667	Disposed
Feb. 27, 2023	WSO	Stock Option (right to buy)	Common Stock (5,000)	$260.28	June 6, 2027	1,667	Disposed
Feb. 27, 2023	WSO	Stock Option (right to buy)	Common Stock (2,500)	$175.07	June 1, 2025	2,500	Disposed
Feb. 27, 2023	WSO	Stock Option (right to buy)	Common Stock (5,000)	$160.69	June 3, 2024	5,000	Disposed
June 6, 2022	WSO	Stock Option (right to buy)	Common Stock (5,000)	$260.28	June 6, 2027	5,000	Acquired
June 1, 2020	WSO	Stock Option (right to buy)	Common Stock (2,500)	$175.07	June 1, 2025	2,500	Acquired
June 3, 2019	WSO	Srock Option (right to buy)	Common Stock (5,000)	$160.69	June 3, 2024	5,000	Acquired

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