ABM (ABM) SVP Dean Chin details RSU and performance share vesting

Rhea-AI Filing Summary

ABM Industries senior vice president and chief accounting officer Dean A. Chin reported a series of equity transactions in company common stock. On January 8, 2026, he acquired 4,855 shares at $0.0000 per share as restricted stock units granted under the 2021 Equity and Incentive Compensation Plan, which vest in three equal annual installments and settle in stock with dividend equivalents accruing. On January 10, 2026, he acquired another 3,293 shares at $0.0000 per share from the vesting of performance-based shares granted in January 2023 that vested after meeting specified performance criteria.

To cover withholding obligations, Chin had several disposition transactions coded "F": 1,094 shares on January 9, 2026 and 248 and 1,232 shares on January 10, 2026, all at $44.69 per share. After these transactions, he directly beneficially owned 20,834 shares of ABM common stock, which includes shares acquired through dividend reinvestment.

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

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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^*

CHIN DEAN A

(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)
	SVP - Chief Accounting Officer

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		4,855(1)	A	$0.0000	20,115	D
Common Stock	01/09/2026		F		1,094	D	$44.69	19,021	D
Common Stock	01/10/2026		A		3,293(2)	A	$0.0000	22,314	D
Common Stock	01/10/2026		F		248	D	$44.69	22,066	D
Common Stock	01/10/2026		F		1,232	D	$44.69	20,834(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.
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FAQ

Who is the insider reporting this Form 4 for ABM (ABM)?

The Form 4 is filed by Dean A. Chin, who serves as SVP - Chief Accounting Officer of ABM Industries Inc. and is reporting his beneficial ownership and recent transactions in ABM common stock.

What equity awards did Dean A. Chin receive in ABM (ABM) stock?

On January 8, 2026, he acquired 4,855 shares of ABM common stock at $0.0000 per share as restricted stock units (RSUs) under the 2021 Equity and Incentive Compensation Plan. On January 10, 2026, he acquired an additional 3,293 shares at $0.0000 per share from the vesting of performance-based shares granted in January 2023.

How do the RSUs reported by ABM insider Dean Chin vest and settle?

The RSUs granted under the 2021 Equity and Incentive Compensation Plan vest in three equal annual installments beginning one year from the grant date and will settle in shares of common stock. Dividend equivalent rights will also accrue on these RSUs.

What are the performance shares that vested for ABM SVP Dean Chin?

The 3,293 shares acquired on January 10, 2026 represent ABM common stock issued upon vesting of relative-total stockholder return modified performance shares granted in January 2023, which vested after the satisfaction of specified performance criteria.

Why did Dean A. Chin dispose of ABM (ABM) shares at $44.69?

Transactions coded "F" on the Form 4 indicate shares withheld to satisfy tax or other obligations upon vesting. Chin had dispositions of 1,094 shares on January 9, 2026 and 248 and 1,232 shares on January 10, 2026, each at $44.69 per share.

How many ABM shares does Dean A. Chin own after these transactions?

Following the reported transactions through January 10, 2026, Dean A. Chin beneficially owned 20,834 shares of ABM common stock directly, including shares acquired through dividend reinvestment.

Are any of Dean Chin’s ABM shares held indirectly through other entities?

The Form 4 indicates that all reported holdings and transactions are held directly (D) by Dean A. Chin. There is no indication in the provided footnotes that the shares are held by another entity or that he disclaims beneficial ownership.