INSMED Inc — Director's Dealing 2023

May 15, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: INSMED Inc (INSM)
CIK: 0001104506
Period of Report: 2023-05-11

Reporting Person: Smith Michael Alexander (General Counsel, Senior VP)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-05-11	Common Stock	A	26385	—	Acquired	80717	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-05-11	Stock Option (right to buy)	$18.95	A	121850	Acquired	2033-05-11	Common Stock (121850.0)	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 date of grant.

F2: Each Restricted Stock Unit was received as a grant on May 11, 2023, 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.