Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
SLIPSAGER HENRIK C
   2. Issuer Name and Ticker or Trading Symbol
ABM INDUSTRIES INC /DE/ [ABM] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President & CEO
(Last)
(First)
(Middle)
551 FIFTH AVENUE, SUITE 300		 3. Date of Earliest Transaction (Month/Day/Year)
12/15/2010
(Street)

NEW YORK CITY, NY 10176		 4. If Amendment, Date 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
(City)
(State)
(Zip)
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 12/15/2010   M   20,000 A $ 15.375 204,266 D  
Common Stock 12/15/2010   S   100 D $ 25.875 204,166 D  
Common Stock 12/15/2010   S   100 D $ 25.93 204,066 D  
Common Stock 12/15/2010   S   98 D $ 25.92 203,968 D  
Common Stock 12/15/2010   S   800 D $ 25.9 203,168 D  
Common Stock 12/15/2010   S   233 D $ 25.91 202,935 D  
Common Stock 12/15/2010   S   1,200 D $ 25.87 201,735 D  
Common Stock 12/15/2010   S   1,000 D $ 25.89 200,735 D  
Common Stock 12/15/2010   S   2,724 D $ 25.86 198,011 D  
Common Stock 12/15/2010   S   7,143 D $ 25.85 190,868 D  
Common Stock 12/15/2010   S   1,300 D $ 25.88 189,568 (1) D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities
(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 of Derivative Security: 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
Stock Options $ 15.375 12/15/2010   M     20,000   (2) 12/19/2010 Common Stock 20,000 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SLIPSAGER HENRIK C
551 FIFTH AVENUE
SUITE 300
NEW YORK CITY, NY 10176		   X     President & CEO  

Signatures

 By: Barbara L. Smithers, by power of attorney   12/17/2010
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Includes 51,256 unvested RSUs, 22,171 vested RSUs, the receipt of which has been deferred and DERs relating to the RSUs, adjusted to reflect the cumulative effect of fractional shares, and 23,828 performance shares earned but not vested with respect to performance shares granted on 1/12/2009 and DERs related thereto. Sales of ABM shares were made pursuant to a 10b5-1 Plan related to 60,000 stock options scheduled to expire on December 19, 2010. Mr. Slipsager sold shares sufficient to cover the exercise price of the options and applicable taxes.
(2) 20% exercisable on 12/19/2001 and 20% exercisable on the anniversary date of each of the following 4 years.

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