Sophia Randolph - 15 Dec 2021 Form 4 Insider Report for ALX ONCOLOGY HOLDINGS INC (ALXO)

Role: Chief Medical Officer, Director
Signature: /s/ Peter Garcia, by power of attorney
Issuer symbol: ALXO
Transactions as of: 15 Dec 2021
Net transactions value: +$33,788
Form type: 4
Filing time: 16 Dec 2021, 19:47:42 UTC
Previous filing: 23 Nov 2021
Next filing: 09 Aug 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALXO	Common Stock	Options Exercise	$12,665	+12,793	+7.8%	$0.9900^*	177,337	15 Dec 2021	Direct
transaction	ALXO	Common Stock	Options Exercise	$21,123	+11,059	+6.2%	$1.91	188,396	15 Dec 2021	Direct

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	ALXO	Stock Option (right to buy)	Options Exercise	$0	-12,793	-100%	$0.000000^*	0	15 Dec 2021	Common Stock	12,793	$0.9900	Direct	F1
transaction	ALXO	Stock Option (right to buy)	Options Exercise	$0	-11,059	-47%	$0.000000	12,431	15 Dec 2021	Common Stock	11,059	$1.91	Direct	F2

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

Explanation of Responses:

Id	Content
F1	Shares subject to the option are fully vested and immediately exercisable.
F2	The option is subject to an early exercise provision and is immediately exercisable. Shares subject to the option vest in 48 equal monthly installments beginning on April 9, 2020.