William Lewis - 30 Sep 2021 Form 4 Insider Report for INSMED Inc (INSM)

Role: Chair and CEO, Director
Signature: /s/ William H. Lewis, by Michael Smith as Attorney in Fact
Issuer symbol: INSM
Transactions as of: 30 Sep 2021
Net transactions value: -$2,315,265
Form type: 4
Filing time: 01 Oct 2021, 16:10:29 UTC
Previous filing: 18 May 2021
Next filing: 28 Dec 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	INSM	Common Stock	Options Exercise	$328,488	+96,614	+48%	$3.40^*	298,833	30 Sep 2021	Direct	F1, F2
transaction	INSM	Common Stock	Sale	$2,275,947	-83,307	-28%	$27.32	215,526	30 Sep 2021	Direct	F1, F3
transaction	INSM	Common Stock	Sale	$367,805	-13,307	-6.2%	$27.64	202,219	30 Sep 2021	Direct	F1, F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	INSM	Stock Option (right to buy)	Options Exercise	$0	-96,614	-97%	$0.000000	3,386	30 Sep 2021	Common Stock	96,614	$3.40	Direct	F5

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The transactions reported in this Form 4 were 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 748 shares acquired through the Company's 2018 Employee Stock Purchase Plan.
F3	This is the weighted average sales price representing 83,307 shares sold at prices ranging from $26.60 to $27.59 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 13,307 shares sold at prices ranging from $27.60 to $27.74 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	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.