Carl R. Christenson - 06 May 2021 Form 4 Insider Report for Altra Industrial Motion Corp.

Role: Chairman and CEO, Director
Signature: Todd Patriacca, Attorney-in-fact
Issuer symbol: N/A
Transactions as of: 06 May 2021
Net transactions value: -$4,022,745
Form type: 4
Filing time: 10 May 2021, 16:23:11 UTC
Next filing: 14 May 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AIMC	Common Stock, par value $0.001	Options Exercise	$1,265,017	+41,273	+83%	$30.65	90,946	06 May 2021	Direct
transaction	AIMC	Common Stock, par value $0.001	Sale	$2,682,745	-41,273	-45%	$65.00	49,673	06 May 2021	Direct
transaction	AIMC	Common Stock, par value $0.001	Options Exercise	$613,000	+20,000	+40%	$30.65	69,673	07 May 2021	Direct
transaction	AIMC	Common Stock, par value $0.001	Sale	$1,340,000	-20,000	-29%	$67.00	49,673	07 May 2021	Direct
holding	AIMC	Common Stock, par value $0.001						127,438	06 May 2021	By Trust	F1
holding	AIMC	Common Stock, par value $0.001						300	06 May 2021	By Children, see footnote	F2

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	AIMC	Stock Option	Options Exercise	$1,265,017	-41,273	-34%	$30.65	81,274	06 May 2021	Common Stock, par value $0.001	41,273	$30.65	Direct	F3
transaction	AIMC	Stock Option	Options Exercise	$613,000	-20,000	-25%	$30.65	61,274	07 May 2021	Common Stock, par value $0.001	20,000	$30.65	Direct	F3

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

Explanation of Responses:

Id	Content
F1	The shares are held in a trust for which Mr. Christenson serves as trustee.
F2	Shares are held by Reporting Persons children.
F3	The option grant has a graded vesting schedule, of which 30,636 and 30,637 became exercisable on August 15, 2019 and August 15, 2020, respectively.