INSMED Inc — Director's Dealing 2024

Jan 10, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: INSMED Inc (INSM)
CIK: 0001104506
Period of Report: 2024-01-08

Reporting Person: Lewis William (Director, Chair and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-01-08	Common Stock	M	24951	$20.49	Acquired	398489	Direct
2024-01-08	Common Stock	S	24951	$29.11	Disposed	373538	Direct
2024-01-08	Common Stock	M	20169	$20.49	Acquired	393707	Direct
2024-01-08	Common Stock	S	20169	$29.88	Disposed	373538	Direct
2024-01-09	Common Stock	S	9887	$28.72	Disposed	363651	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-01-08	Stock Option (right to buy)	$20.49	M	45120	Acquired	2024-01-10	Common Stock (45120)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	233924	Indirect
Common Stock	500	Indirect

Footnotes

F1: This transaction was effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F2: This is the weighted average sales price representing 24,951 shares sold at prices ranging from $28.71 to $29.68 per share. The reporting person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request.

F3: This is the weighted average sales price representing 20,169 shares sold at prices ranging from $29.88 to $29.93 per share. The reporting person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request.

F4: Shares sold to satisfy withholding tax obligations upon the vesting of Restricted Stock Units and to cover related broker fees.

F5: This is the weighted average sales price representing 9,887 shares sold at prices ranging from $28.62 to $28.84 per share. The reporting person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request.

F6: Stock options granted under the Company's 2013 Incentive Plan. The options became exercisable based on the following vesting schedule: twenty five percent (25%) vested on the first anniversary of the grant date and an additional twelve and one half percent (12.5%) vested on each sixth month anniversary date thereafter through the fourth anniversary date of the date of grant. All options are currently exercisable and were scheduled to expire on January 10, 2024.