INSMED Inc — Director's Dealing 2023

Oct 31, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: INSMED Inc (INSM)
CIK: 0001104506
Period of Report: 2023-10-27

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-10-27	Common Stock	M	53363	$14.24	Acquired	53363	Indirect
2023-10-27	Common Stock	S	53363	$24.04	Disposed	0	Indirect
2023-10-27	Common Stock	M	1322	$14.24	Acquired	1322	Indirect
2023-10-27	Common Stock	S	1322	$25.08	Disposed	0	Indirect
2023-10-27	Common Stock	M	315	$14.24	Acquired	315	Indirect
2023-10-27	Common Stock	S	315	$26	Disposed	0	Indirect
2023-10-27	Common Stock	M	500	$14.24	Acquired	500	Indirect
2023-10-27	Common Stock	M	55350	$14.24	Acquired	289274	Indirect
2023-10-27	Common Stock	S	55350	$24.04	Disposed	233924	Indirect
2023-10-27	Common Stock	M	1323	$14.24	Acquired	235247	Indirect
2023-10-27	Common Stock	S	1323	$25.05	Disposed	233924	Indirect
2023-10-27	Common Stock	M	327	$14.24	Acquired	234251	Indirect
2023-10-27	Common Stock	S	327	$26	Disposed	233924	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-10-27	Stock Option (right to buy)	$14.24	M	55000	Disposed	2023-10-31	Common Stock (55000)	Indirect
2023-10-27	Stock Option (right to buy)	$14.24	M	500	Disposed	2023-10-31	Common Stock (500)	Indirect
2023-10-27	Stock Option (right to buy)	$14.24	M	57000	Disposed	2023-10-31	Common Stock (57000)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	342648	Direct

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: By ARTICLE 4 TRUST UNDER WILLIAM LEWIS FAMILY LEGACY TRUST U/A11/1/2020

F3: This is the weighted average sales price representing 53,363 shares sold at prices ranging from $23.68 to $24.60 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 1,322 shares sold at prices ranging from $24.83 to $25.40 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: By ARTICLE 4 KATIE PROCTER DYNASTY TRUST

F6: This is the weighted average sales price representing 55,350 shares sold at prices ranging from $23.65 to $24.63 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 1,323 shares sold at prices ranging from $24.83 to $25.40 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: Includes 1,303 shares acquired through the Company's 2018 Employee Stock Purchase Plan.

F9: 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 of the date of grant. All options are currently exercisable and were scheduled to expire on October 31, 2023.