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 *
MCCAUSLAND PETER
   2. Issuer Name and Ticker or Trading Symbol
AIRGAS INC [ARG] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Executive Chairman
(Last)
(First)
(Middle)
C/O AIRGAS, INC., 259 N. RADNOR-CHESTER ROAD, SUITE 100		 3. Date of Earliest Transaction (Month/Day/Year)
05/23/2016
(Street)

RADNOR, PA 19087		 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 05/23/2016   D   4,645,235 (1) D $ 143 (1) 0 D  
Common Stock 05/23/2016   D   52,260.4351 (2) D $ 143 (2) 0 I By 401(k) Plan
Common Stock 05/23/2016   D   1,500 (1) D $ 143 (1) 0 I By immediate family

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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 Option (Right to Buy) $ 66.5 05/23/2016   D     27,500   (3) 05/17/2019 Common Stock 27,500 (3) 0 D  
Stock Option (Right to Buy) $ 91.92 05/23/2016   D     35,000   (3) 05/08/2020 Common Stock 35,000 (3) 0 D  
Stock Option (Right to Buy) $ 102.85 05/23/2016   D     30,000   (3) 05/21/2021 Common Stock 30,000 (3) 0 D  
Stock Option (Right to Buy) $ 104.64 05/23/2016   D     4,500   (3) 05/20/2022 Common Stock 4,500 (3) 0 D  
Stock Option (Right to Buy) $ 107.17 05/23/2016   D     500   (3) 08/05/2022 Common Stock 500 (3) 0 D  
Stock Option (Right to Buy) $ 103.62 05/23/2016   D     20,000   (3) 05/19/2023 Common Stock 20,000 (3) 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
MCCAUSLAND PETER
C/O AIRGAS, INC.
259 N. RADNOR-CHESTER ROAD, SUITE 100
RADNOR, PA 19087		   X     Executive Chairman  

Signatures

 Robert H. Young, Jr., Attorney-in-Fact for Peter McCausland   05/24/2016
**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) Disposed of pursuant to an Agreement and Plan of Merger, dated as of November 17, 2015, among the Issuer, L'Air Liquide, S.A. and AL Acquisition Corporation, an indirect wholly owned subsidiary of Air Liquide ("Merger Agreement"), in exchange for the cash merger consideration of $143.00 per share of Airgas, Inc. common stock disposed of by the reporting person in connection with the merger.
(2) Represents the reporting person's interest in a unitized Airgas, Inc. common stock fund available to participants under the Airgas, Inc. 401(k) plan. The reporting person's interest fluctuates with the fund's performance. In connection with the merger, the reporting person's interest was reinvested in other investment funds available under the plan.
(3) Pursuant to the Merger Agreement, each stock option outstanding on the effective date of the merger, whether vested or unvested, was canceled in exchange for a cash payment equal to the product of (x) the excess of the cash per share merger consideration ($143.00) over the exercise price of the stock option and (y) the number of shares of common stock subject to the option on the effective day of the merger.

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