Sean Michael Mahoney

CIK 1831911 · View on SEC EDGAR ↗

Insider

First SEC filing: Nov. 10, 2020 · Latest: Nov. 10, 2020

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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.
Initial holdings The stakes this person held when they first started reporting.
Compensation Executive pay disclosed in company proxy statements.

Insider at

ABM selling May 8, 2025

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 48 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

48 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 10, 2026	ABM	A	7,542	—	—	50,677 Direct	+17.48%	Acquired	(price as of 2026-08-21)
Jan. 10, 2026	ABM	F	2,634	$44.69	$117,713	48,043 Direct	-5.20%	Disposed	5.4% (price as of 2026-08-21)
Jan. 9, 2026	ABM	F	1,775	$44.69	$79,325	43,135 Direct	-3.95%	Disposed	5.4% (price as of 2026-08-21)
Jan. 8, 2026	ABM	A	9,813	—	—	44,910 Direct	+27.96%	Acquired	(price as of 2026-08-21)
May 8, 2025	ABM	S 10b5-1	12,626	$50.54	$638,118	34,799 Direct	-26.62%	Disposed	-6.8% (price as of 2026-08-21)
May 7, 2025	ABM	S 10b5-1	1,800	$50.03	$90,054	47,425 Direct	-3.66%	Disposed	-5.8% (price as of 2026-08-21)
May 5, 2025	ABM	S 10b5-1	574	$50.06	$28,734	49,225 Direct	-1.15%	Disposed	-5.9% (price as of 2026-08-21)
Jan. 10, 2025	ABM	F	428	$50.42	$21,580	49,799 Direct	-0.85%	Disposed	-6.5% (price as of 2026-08-21)
Jan. 9, 2025	ABM	A	7,072	—	—	51,211 Direct	+16.02%	Acquired	(price as of 2026-08-21)
Jan. 9, 2025	ABM	F	984	$50.97	$50,154	50,227 Direct	-1.92%	Disposed	-7.6% (price as of 2026-08-21)
Jan. 8, 2025	ABM	A	6,618	—	—	46,218 Direct	+16.71%	Acquired	(price as of 2026-08-21)
Jan. 8, 2025	ABM	F	2,079	$50.97	$105,967	44,139 Direct	-4.50%	Disposed	-7.6% (price as of 2026-08-21)
Jan. 7, 2025	ABM	F	461	$50.14	$23,115	39,600 Direct	-1.15%	Disposed	-6.0% (price as of 2026-08-21)
May 6, 2024	ABM	A	61	—	—	39,958 Direct	+0.15%	Acquired	(price as of 2026-08-21)
Feb. 5, 2024	ABM	A	21	—	—	39,882 Direct	+0.05%	Acquired	(price as of 2026-08-21)
Jan. 10, 2024	ABM	F	394	$42.78	$16,855	39,861 Direct	-0.98%	Disposed	10.1% (price as of 2026-08-21)
Jan. 9, 2024	ABM	A	8,307	—	—	40,255 Direct	+26.00%	Acquired	(price as of 2026-08-21)
Jan. 8, 2024	ABM	A	6,664	—	—	34,507 Direct	+23.93%	Acquired	(price as of 2026-08-21)
Jan. 8, 2024	ABM	F	2,559	$42.54	$108,860	31,948 Direct	-7.42%	Disposed	10.8% (price as of 2026-08-21)
Jan. 7, 2024	ABM	F	455	$42.45	$19,315	27,843 Direct	-1.61%	Disposed	11.0% (price as of 2026-08-21)
Nov. 6, 2023	ABM	A	42	—	—	28,298 Direct	+0.15%	Acquired	(price as of 2026-08-21)
Aug. 7, 2023	ABM	A	37	—	—	28,256 Direct	+0.13%	Acquired	(price as of 2026-08-21)
May 1, 2023	ABM	A	40	—	—	28,219 Direct	+0.14%	Acquired	(price as of 2026-08-21)
Feb. 6, 2023	ABM	A	29	—	—	28,179 Direct	+0.10%	Acquired	(price as of 2026-08-21)
Jan. 10, 2023	ABM	A	3,856	—	—	28,150 Direct	+15.87%	Acquired	(price as of 2026-08-21)
Jan. 9, 2023	ABM	A	4,378	—	—	26,472 Direct	+19.82%	Acquired	(price as of 2026-08-21)
Jan. 9, 2023	ABM	F	1,358	$45.54	$61,843	24,294 Direct	-5.29%	Disposed	3.5% (price as of 2026-08-21)
Jan. 9, 2023	ABM	F	820	$45.54	$37,343	21,274 Direct	-3.71%	Disposed	3.5% (price as of 2026-08-21)
Jan. 8, 2023	ABM	F	257	$45.54	$11,704	22,094 Direct	-1.15%	Disposed	3.5% (price as of 2026-08-21)
Jan. 7, 2023	ABM	F	444	$46.21	$20,517	22,351 Direct	-1.95%	Disposed	2.0% (price as of 2026-08-21)
Nov. 7, 2022	ABM	A	37	—	—	22,799 Direct	+0.16%	Acquired	(price as of 2026-08-21)
Aug. 1, 2022	ABM	A	36	—	—	22,762 Direct	+0.16%	Acquired	(price as of 2026-08-21)
July 14, 2022	ABM	F	584	$42.16	$24,621	22,726 Direct	-2.51%	Disposed	11.8% (price as of 2026-08-21)
May 2, 2022	ABM	A	41	—	—	23,310 Direct	+0.18%	Acquired	(price as of 2026-08-21)
Feb. 7, 2022	ABM	A	42	—	—	23,269 Direct	+0.18%	Acquired	(price as of 2026-08-21)
Jan. 10, 2022	ABM	F	356	$43.28	$15,408	23,227 Direct	-1.51%	Disposed	8.9% (price as of 2026-08-21)
Jan. 9, 2022	ABM	A	4,015	—	—	25,090 Direct	+19.05%	Acquired	(price as of 2026-08-21)
Jan. 9, 2022	ABM	F	296	$43.28	$12,811	24,794 Direct	-1.18%	Disposed	8.9% (price as of 2026-08-21)
Jan. 9, 2022	ABM	F	1,211	$43.28	$52,412	23,583 Direct	-4.88%	Disposed	8.9% (price as of 2026-08-21)
Jan. 8, 2022	ABM	F	470	$43.28	$20,342	21,075 Direct	-2.18%	Disposed	8.9% (price as of 2026-08-21)
Jan. 7, 2022	ABM	A	3,716	—	—	21,545 Direct	+20.84%	Acquired	(price as of 2026-08-21)
Nov. 1, 2021	ABM	A	40	—	—	17,829 Direct	+0.22%	Acquired	(price as of 2026-08-21)
Sept. 11, 2021	ABM	F	876	$46.26	$40,524	17,789 Direct	-4.69%	Disposed	1.9% (price as of 2026-08-21)
Aug. 2, 2021	ABM	A	60	—	—	18,665 Direct	+0.32%	Acquired	(price as of 2026-08-21)
July 14, 2021	ABM	F	572	$45.06	$25,774	18,605 Direct	-2.98%	Disposed	4.6% (price as of 2026-08-21)
May 3, 2021	ABM	A	50	—	—	19,177 Direct	+0.26%	Acquired	(price as of 2026-08-21)
Feb. 1, 2021	ABM	A	51	—	—	19,118 Direct	+0.27%	Acquired	(price as of 2026-08-21)
Jan. 10, 2021	ABM	A	2,357	—	—	19,855 Direct	+13.47%	Acquired	(price as of 2026-08-21)
Jan. 10, 2021	ABM	F	788	$40.71	$32,079	19,067 Direct	-3.97%	Disposed	15.7% (price as of 2026-08-21)
Jan. 9, 2021	ABM	F	676	$40.71	$27,520	17,498 Direct	-3.72%	Disposed	15.7% (price as of 2026-08-21)
Jan. 8, 2021	ABM	A	3,926	—	—	18,174 Direct	+27.55%	Acquired	(price as of 2026-08-21)

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.

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
Nov. 10, 2020	ABM	Common Stock	—	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

ABM

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$512,500	—	—	—	$378,511	—	—	$1,806,200

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