INSMED Inc — Director's Dealing 2024

Dec 13, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: INSMED Inc (INSM)
CIK: 0001104506
Period of Report: 2024-12-12

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-12-12	Common Stock	M	18750	$22.76	Acquired	403710	Direct
2024-12-12	Common Stock	S	11504	$72.58	Disposed	392206	Direct
2024-12-12	Common Stock	S	6847	$73.56	Disposed	385359	Direct
2024-12-12	Common Stock	S	399	$74.23	Disposed	384960	Direct
2024-12-12	Common Stock	M	6830	$10.85	Acquired	240754	Indirect
2024-12-12	Common Stock	S	4087	$72.57	Disposed	236667	Indirect
2024-12-12	Common Stock	S	2562	$73.55	Disposed	234105	Indirect
2024-12-12	Common Stock	S	181	$74.22	Disposed	233924	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-12-12	Stock Option (right to buy)	$22.76	M	18750	Disposed	2025-05-21	Common Stock (18750)	Direct
2024-12-12	Stock Option (right to buy)	$10.85	M	6830	Disposed	2026-05-19	Common Stock (6830)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	50500	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: Includes 835 shares acquired through the Company's 2018 Employee Stock Purchase Plan.

F3: This is the weighted average sales price representing 11,504 shares sold at prices ranging from $72.05 to $73.05 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: This is the weighted average sales price representing 6,847 shares sold at prices ranging from $73.16 to $74.14 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.

F5: This is the weighted average sales price representing 399 shares sold at prices ranging from $74.18 to $74.36 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: This is the weighted average sales price representing 4,087 shares sold at prices ranging from $72.05 to $73.01 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.

F7: This is the weighted average sales price representing 2,562 shares sold at prices ranging from $73.16 to $74.11 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.

F8: This is the weighted average sales price representing 181 shares sold at prices ranging from $74.20 to $74.30 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.

F9: The options became exercisable based on the following vesting schedule: 25% vested on the first anniversary of the grant date and an additional 12.5% vested on each sixth month anniversary date thereafter through the fourth anniversary of the date of grant. All options are currently exercisable.