Salarius Pharmaceuticals, Inc. — Director's Dealing 2015

Jul 1, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Flex Pharma, Inc. (FLKS)
CIK: 0001615219
Period of Report: 2015-06-29

Reporting Person: Woo Elizabeth (VP, Investor Relations)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-06-29	Stock Option (right to buy)	$17.43	A	15000	Acquired	2025-06-29	Common Stock (15000.0)	Direct

Footnotes

F1: 25% of the total shares underlying this option vest on April 15, 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.