PFIZER INC — Director's Dealing 2014

Feb 12, 2014

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: Flexion Therapeutics Inc (FLXN)
CIK: 0001419600
Period of Report: 2014-02-11

Reporting Person: PFIZER INC (10% Owner)

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Series A Preferred Stock	$0.00		Common Stock (1452944)		Direct
Series B Preferred Stock	$0.00		Common Stock (234306)		Direct

Footnotes

F1: The shares of Series A Preferred Stock have no expiration date and are convertible at any time at the election of the holder without payment of further consideration. Each share of Series A Preferred Stock will automatically convert on a 1-for-8.13 basis into shares of Common Stock upon the closing of the Issuer's initial public offering.

F2: Share numbers assume or give effect to the 1-for-8.13 reverse stock split of the Issuer's Common Stock effected on January 27, 2014, which will be effective for the Preferred Stock upon its conversion to Common Stock immediately prior to the closing of the Issuer's initial public offering.

F3: The shares of Series B Preferred Stock have no expiration date and are convertible at any time at the election of the holder without payment of further consideration. Each share of Series B Preferred Stock will automatically convert on a 1-for-8.13 basis into shares of Common Stock upon the closing of the Issuer's initial public offering.