INSMED Inc — Director's Dealing 2016

May 23, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: INSMED Inc (INSM)
CIK: 0001104506
Period of Report: 2016-05-19

Reporting Person: Lewis William (Director, President & CEO)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-05-19	Stock Option	$10.85	A	245950	Acquired	2026-05-19	Common Stock (245950)	Direct

Footnotes

F1: Stock options granted under the Company's 2015 Incentive Plan. The options become exercisable based on the following vesting schedule: twenty five percent (25%) on the first anniversary of the grant date and an additional twelve and one half percent (12.5%) vest on each sixth month anniversary date thereafter through the fourth anniversary of the date of grant.