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Filing Details

Accession Number:: 0001628280-25-006807
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2025-02-20 16:52:41
Reporting Period:: 2025-02-18

Filing Date:: 2025-02-20
Accepted Time:: 2025-02-20 16:52:41
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1104506	Insmed Inc	INSM	Pharmaceutical Preparations (2834)	541972729

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1402051	William Lewis	700 Us Highway 202/206 Bridgewater NJ 08807	Chair And Ceo	Yes	Yes	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2025-02-18	18,750	$22.76	352,936	No	4	M	Direct
Common Stock	Disposition	2025-02-18	1,253	$79.95	351,683	No	4	S	Direct
Common Stock	Disposition	2025-02-18	16,743	$81.08	334,940	No	4	S	Direct
Common Stock	Disposition	2025-02-18	754	$81.67	334,186	No	4	S	Direct
Common Stock	Acquisiton	2025-02-18	6,830	$10.85	240,754	No	4	M	Indirect	By the Katie Procter Dynasty Trust
Common Stock	Disposition	2025-02-18	456	$80.00	240,298	No	4	S	Indirect	By the Katie Procter Dynasty Trust
Common Stock	Disposition	2025-02-18	6,074	$81.07	234,224	No	4	S	Indirect	By the Katie Procter Dynasty Trust
Common Stock	Disposition	2025-02-18	300	$81.81	233,924	No	4	S	Indirect	By the Katie Procter Dynasty Trust

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	M	Indirect	By the Katie Procter Dynasty Trust
No	4	S	Indirect	By the Katie Procter Dynasty Trust
No	4	S	Indirect	By the Katie Procter Dynasty Trust
No	4	S	Indirect	By the Katie Procter Dynasty Trust

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Disposition	2025-02-18	18,750	$0.00	18,750	$22.76
Common Stock	Stock Option (right to buy)	Disposition	2025-02-18	6,830	$0.00	6,830	$10.85

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
37,500		2025-05-21	No	4	M	Direct
204,970		2026-05-19	No	4	M	Indirect

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	50,500	Indirect	By the William Lewis Family Legacy Trust

Footnotes

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.
Since the date of the last ownership report for the Reporting Person, he transferred 92,155 shares of Company common stock, employee stock options to purchase 1,064,717 shares of Company common stock, and restricted stock units covering 27,553 shares of Company common stock to his ex-spouse pursuant to a mutually agreed divorce settlement approved by a court that qualifies as a domestic relations order. A domestic relations order is a court order that dictates how assets should be divided between spouses during a divorce, including securities in the Company. The Reporting Person no longer reports as beneficially owned any securities owned by his ex-spouse.
This is the weighted average sales price representing 1,253 shares sold at prices ranging from $79.50 to $80.35 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.
This is the weighted average sales price representing 16,743 shares sold at prices ranging from $80.50 to $81.43 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.
This is the weighted average sales price representing 754 shares sold at prices ranging from $81.56 to $81.78 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.
This is the weighted average sales price representing 456 shares sold at prices ranging from $79.50 to $80.34 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.
This is the weighted average sales price representing 6,074 shares sold at prices ranging from $80.51 to $81.42 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.
This is the weighted average sales price representing 300 shares sold at prices ranging from $81.69 to $82.01 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.
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.