ABM Industries (ABM) EVP Sean Mahoney details new stock awards and trades

Rhea-AI Filing Summary

ABM Industries executive Sean Michael Mahoney, EVP and President-Sales & Marketing, reported several equity transactions in common stock. On 01/08/2026, he acquired 9,813 shares at $0.0000 per share, described as restricted stock units granted under the 2021 Equity and Incentive Compensation Plan that vest in three equal annual installments and settle in common shares, with dividend equivalent rights accruing. On 01/09/2026, he disposed of 1,775 shares at $44.69 per share. On 01/10/2026, he acquired 7,542 shares at $0.0000 per share from performance-based awards granted in January 2023 that vested after meeting specified performance criteria, and on the same date disposed of 2,634 shares at $44.69 per share. Following these transactions, he directly owned 48,043 shares of ABM common stock.

Insights

Insider transactions analyst

Routine ABM equity awards and related share dispositions by an executive.

The filing shows Sean Michael Mahoney, an ABM Industries executive, receiving equity compensation through restricted stock units and performance-based awards. On 01/08/2026, he received 9,813 RSU-based shares at $0.0000, and on 01/10/2026 he received 7,542 shares from performance awards granted in January 2023 that vested after satisfying stated performance criteria.

These equity grants are tied to ABM's 2021 Equity and Incentive Compensation Plan, with the RSUs vesting in three equal annual installments and settling in common stock, while also accruing dividend equivalent rights. The filing also lists share dispositions on 01/09/2026 and 01/10/2026 totaling 1,775 and 2,634 shares at $44.69 per share.

After all reported transactions, Mahoney directly held 48,043 ABM common shares. The activity appears consistent with standard executive equity compensation and vesting mechanics rather than a standalone strategic move.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MAHONEY SEAN MICHAEL

(Last) (First) (Middle)

ONE LIBERTY PLAZA

7TH FL

(Street)

NEW YORK NY 10006

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ABM INDUSTRIES INC /DE/ [ ABM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, President-Sales & Mktng

3. Date of Earliest Transaction (Month/Day/Year)
01/08/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	01/08/2026		A		9,813(1)	A	$0.0000	44,910	D
Common Stock	01/09/2026		F		1,775	D	$44.69	43,135	D
Common Stock	01/10/2026		A		7,542(2)	A	$0.0000	50,677	D
Common Stock	01/10/2026		F		2,634	D	$44.69	48,043(3)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Restricted stock units (RSUs) granted under the 2021 Equity and Incentive Compensation Plan, representing a contingent right to receive shares of common stock. Such RSUs vest in three equal annual installments beginning a year from the grant date, and will settle in shares of common stock. Dividend equivalent rights will accrue.

2. Represents shares of Issuer common stock acquired pursuant to vesting of relative-total stockholder return modified performance shares that were granted to the reporting person in January 2023 and have vested based upon the satisfaction of performance criteria specified for the award at the time of grant.

3. Includes shares acquired pursuant to dividend reinvestment in transactions exempt from Section 16 pursuant to Rule 16a-11.

	By: David R. Goldman, by power of attorney	01/12/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did ABM (ABM) executive Sean Michael Mahoney report?

Sean Michael Mahoney reported four common stock transactions. On 01/08/2026, he acquired 9,813 shares at $0.0000 per share from restricted stock units under the 2021 Equity and Incentive Compensation Plan. On 01/09/2026, he disposed of 1,775 shares at $44.69. On 01/10/2026, he acquired 7,542 shares at $0.0000 from performance-based awards and disposed of 2,634 shares at $44.69.

How many ABM common shares does Sean Michael Mahoney hold after these transactions?

Following the reported transactions, Sean Michael Mahoney directly owned 48,043 shares of ABM Industries common stock.

What is the nature of the ABM restricted stock units granted to Sean Michael Mahoney?

The 9,813 restricted stock units (RSUs) granted on 01/08/2026 were issued under ABM's 2021 Equity and Incentive Compensation Plan. They represent a contingent right to receive common stock, vest in three equal annual installments beginning one year from the grant date, settle in common shares, and accrue dividend equivalent rights.

What performance-based ABM shares vested for Sean Michael Mahoney?

The 7,542 shares acquired on 01/10/2026 represent ABM common stock received from relative-total stockholder return modified performance shares granted in January 2023. These vested after the satisfaction of specified performance criteria for that award.

At what price were ABM shares disposed of in Mahoney's reported transactions?

In the reported dispositions, Sean Michael Mahoney disposed of 1,775 shares on 01/09/2026 and 2,634 shares on 01/10/2026, both at a price of $44.69 per share.

Are dividend reinvestment shares included in Sean Michael Mahoney's ABM holdings?

Yes. The filing notes that his holdings include shares acquired through dividend reinvestment in transactions exempt from Section 16 under Rule 16a-11, which are part of the 48,043 shares reported as directly owned after the transactions.