Reinhard J. Ambros - Feb 28, 2024 Form 4/A Insider Report for Aileron Therapeutics, Inc. (ALRN)

Role: Director
Signature: /s/ Brian Windsor, attorney-in-fact for Reinhard J. Ambros
Stock symbol: ALRN
Transactions as of: Feb 28, 2024
Transactions value $: $0
Form type: 4/A
Date filed: 4/10/2024, 04:15 PM
Date Of Original Report: Mar 1, 2024
Previous filing: Jun 17, 2022
Next filing: Aug 22, 2024

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	ALRN	Stock Option (right to buy)	Award	$0	+2.73K		$0.00	2.73K	Feb 28, 2024	Common Stock	2.73K	$4.72	Direct	F1

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

Explanation of Responses:

Id	Content
F1	This option was granted on February 28, 2024. The shares underlying the option are scheduled to vest in full on the earlier of (i) February 28, 2025 or (ii) the date of the Issuer's 2024 Annual Meeting of Stockholders.

Remarks:

This amendment to Form 4 is being filed solely to correct the exercise price of the granted options previously reported as being $4.80 to $4.72, the adjusted closing price of the Issuer's stock on February 28, 2024.