INSMED Inc — Director's Dealing 2021

May 14, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: INSMED Inc (INSM)
CIK: 0001104506
Period of Report: 2021-05-12

Reporting Person: Bonstein Sara (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-12	Common Stock	A	14172	—	Acquired	23355	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-05-12	Stock Option (right to buy)	$26.46	A	68640	Acquired	2031-05-12	Common Stock (68640)	Direct

Footnotes

F1: Represents Restricted Stock Units, each representing a contingent right to receive one share of Common Stock, granted pursuant to the Company's 2019 Incentive Plan. The Restricted Stock Units vest and become available as follows: twenty five (25%) percent on each anniversary of the date of grant through the fourth anniversary date of the grant.

F2: Each Restricted Stock Unit was received as a grant on May 12, 2021, for no consideration.

F3: Stock options granted under the Company's 2019 Incentive Plan. The options become exercisable based on the following vesting schedule: twenty five percent (25%) vest 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.