Richard P. Lavin - May 5, 2021 Form 4 Insider Report for Allison Transmission Holdings Inc (ALSN)

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	ALSN	Deferred Stock Units	Award	$0	+249	+1.91%	$0.00	13.3K	May 5, 2021	Common Stock	249		Direct	F1, F2, F3
transaction	ALSN	Deferred Stock Units	Award	$0	+2.93K	+22%	$0.00	16.2K	May 6, 2021	Common Stock	2.93K		Direct	F2, F4, F5, F6

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

Id	Content
F1	These deferred stock units ("DSUs") represent a quarterly payment of the portion of the reporting person's annual retainer and other fees under the Allison Transmission Holdings, Inc. (the "Company") Fifth Amended and Restated Non-Employee Director Compensation Policy ("Policy") deferred pursuant to the Company's Amended and Restated Non-Employee Director Deferred Compensation Plan. The annual retainer and other fees are payable quarterly in arrears.
F2	Each DSU is the economic equivalent of one share of the Company's common stock. The DSUs become payable, in common stock, or at the Company's election cash, at the earlier of the reporting person's separation from service or a change in control. DSUs earn dividend equivalents when dividends are declared on the Company's common stock.
F3	The number of DSUs received was calculated based on $42.57, which was the closing price of the Company's common stock on the date of grant.
F4	The DSUs represent the portion of the reporting person's annual equity award under the Policy deferred pursuant to the Company's Amended and Restated Non-Employee Director Deferred Compensation Plan.
F5	The DSUs vest on the date of the next annual meeting of the stockholders of the Company.
F6	The number of DSUs received was calculated based on $44.40, which was the closing price of the Company's common stock on the date of grant.