Salarius Pharmaceuticals, Inc. — Director's Dealing 2015

Jan 29, 2015

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: Flex Pharma, Inc. (FLKS)
CIK: 0001615219
Period of Report: 2015-01-28

Reporting Person: HAHN MARINA (President, Consumer Goods)

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option (right to buy)	$4.28	2024-10-14	Common Stock (248855)		Direct

Footnotes

F1: Grant to the Reporting Person of a stock option under the Issuer's 2014 Equity Incentive Plan (the "2014 Plan"). 25% of the total shares underlying this option vest on September 30, 2015, the remaining shares vest 1/48 per month over the next 36 months thereafter, subject to continued service to the Issuer through each vesting date. 669,689 shares are exercisable as of the date of grant and an additional 99,009 shares are exerciseable on January 1 of each year beginning in 2015 and ending in 2018. This Grant to the Reporting Person includes accelerated vesting following a termination without cause or for good reason in connection with change of control. This Grant also includes a one year post termination exercise provision.