Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  W R GRACE & CO
 2. Date of Event Requiring Statement (Month/Day/Year)
01/15/2016		 3. Issuer Name and Ticker or Trading Symbol
GCP Applied Technologies Inc. [GCP]
(Last)
(First)
(Middle)
7500 GRACE DRIVE		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

COLUMBIA, MD 21044		 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 Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock, par value $0.01 per share 100 (1) (2)
D
 

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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
W R GRACE & CO
7500 GRACE DRIVE
COLUMBIA, MD 21044		     X    

Signatures

/s/ Mark A. Shelnitz 01/15/2016
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) This Form 3 is being filed in connection with the U.S. SEC's declaration of effectiveness of the Registration Statement on Form 10 of GCP Applied Technologies Inc. ("GCP"), which describes the planned separation of GCP from W. R. Grace & Co. ("Grace"). The 100 shares of GCP's Common Stock reported hereunder are held of record by a direct wholly owned subsidiary of Grace.
(2) Pursuant to an amendment to GCP's Certificate of Incorporation to become effective prior to said separation, effective as of the close of business on the date set by resolution of the Board of Directors of Grace as the record date for distribution of shares of GCP's Common Stock to holders of shares of Grace's common stock (such time, the "Effective Time"), the 100 shares of GCP's Common Stock shall, automatically by operation of law and without any further action of the part of GCP, Grace or said subsidiary, be subdivided and converted into a number of shares of validly issued, fully paid and non-assessable shares of GCP's Common Stock equal to the number of shares of common stock, par value $0.01 per share, of Grace, issued and outstanding as of the Effective Time.

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