Sec Form 4 Filing - Dolsten Mikael @ PFIZER INC - 2019-03-01

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 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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1. Name and Address of Reporting Person Dolsten Mikael 2. Issuer Name and Ticker or Trading Symbol PFIZER INC [ PFE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President R&D (Last) (First) (Middle) PFIZER INC.-CORP. SECRETARY, 235 EAST 42ND ST. 3. Date of Earliest Transaction (MM/DD/YY) 03/01/2019 (Street) NEW YORK, NY10017 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 03/01/2019 M 57,609 ( 1 ) A $ 30.59 390,097 D Common Stock 03/01/2019 M 48,582 ( 2 ) A $ 32.23 438,679 D Common Stock 03/01/2019 S 2,300 D $ 43.59 436,379 D Common Stock 03/01/2019 S 5,927 D $ 43.58 430,452 D Common Stock 03/01/2019 S 14,760 D $ 43.57 415,692 D Common Stock 03/01/2019 S 77,484 D $ 43.56 338,208 D Common Stock 03/04/2019 S 2,187 D $ 43.56 336,021 D Common Stock 03/04/2019 S 2,400 D $ 43.55 333,621 D Common Stock 03/04/2019 S 2,600 D $ 43.54 331,021 D Common Stock 03/04/2019 S 3,250 D $ 43.53 327,771 D Common Stock 03/04/2019 S 38,645 D $ 43.52 289,126 D Common Stock 1,625 I By Rule 16b-3 Plan

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Appreciation Rights $ 30.59 03/01/2019 M 155,172 02/25/2019 02/25/2021 Common Stock 155,172 $ 0 0 D Stock Appreciation Rights $ 32.23 03/01/2019 M 126,366 06/16/2018 02/27/2021 Common Stock 126,366 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Dolsten Mikael PFIZER INC.-CORP. SECRETARY 235 EAST 42ND ST. NEW YORK, NY10017 President R&D Signatures Susan E. Grant, by power of atty., for Mikael Dolsten 03/05/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents the number of stock units received upon the exercise and conversion of previously granted stock appreciation rights (SARs), calculated by taking the change in our common stock price (20 trading day average ending on the exercise date (Election Price of $42.45)) less the grant price of the SAR plus accumulated dividends from the grant date, times the number of SARs exercised. This value is divided by the Election Price to determine the number of stock units. The stock units and accumulated dividend units will be settled in Pfizer common stock on the SAR original settlement date, the fifth anniversary of grant. ( 2 )Represents the number of stock units received upon the exercise and conversion of previously granted stock appreciation rights (SARs), calculated by taking the change in our common stock price (20 trading day average ending on the exercise date (Election Price of $42.45)) less the grant price of the SAR plus accumulated dividends from the grant date, times the number of SARs exercised. This value is divided by the Election Price to determine the number of stock units. The stock units and accumulated dividend units will be settled in Pfizer common stock on the SAR original settlement date, the seventh anniversary of grant.

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).

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