INSMED Inc — Director's Dealing 2025

Jan 16, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: INSMED Inc (INSM)
CIK: 0001104506
Period of Report: 2025-01-15

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-01-15	Common Stock	M	18750	$22.76	Acquired	411339	Direct
2025-01-15	Common Stock	S	6636	$69.39	Disposed	404703	Direct
2025-01-15	Common Stock	S	22696	$70.32	Disposed	382007	Direct
2025-01-15	Common Stock	S	2473	$71.05	Disposed	379534	Direct
2025-01-15	Common Stock	M	6830	$10.85	Acquired	240754	Indirect
2025-01-15	Common Stock	S	1499	$69.40	Disposed	239255	Indirect
2025-01-15	Common Stock	S	4700	$70.31	Disposed	234555	Indirect
2025-01-15	Common Stock	S	631	$71.01	Disposed	233924	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-01-15	Stock Option (right to buy)	$22.76	M	18750	Disposed	2025-05-21	Common Stock (18750)	Direct
2025-01-15	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: This is the weighted average sales price representing 6,636 shares sold at prices ranging from $68.87 to $69.86 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 22,696 shares sold at prices ranging from $69.89 to $70.89 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 2,473 shares sold at prices ranging from $70.89 to $71.37 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 1,499 shares sold at prices ranging from $68.87 to $69.87 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 4,700 shares sold at prices ranging from $69.91 to $70.90 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 631 shares sold at prices ranging from $70.92 to $71.23 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: 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.