X0508 4/A 2024-05-01 2024-05-01 0 0001420565 Aileron Therapeutics, Inc. ALRN 0001019231 UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT CO 210 W. 7TH STREET, SUITE 1700 AUSTIN TX 78701 0 0 1 0 0 Common Stock 2024-05-01 4 S 0 3100 4.1 D 1807357 D Common Stock 2024-05-01 4 S 0 100 4.11 D 1807257 D Common Stock 2024-05-01 4 S 0 1750 4.12 D 1805507 D Common Stock 2024-05-01 4 S 0 380 4.13 D 1805127 D Common Stock 2024-05-01 4 S 0 1600 4.145 D 1803527 D Common Stock 2024-05-01 4 S 0 670 4.15 D 1802857 D Common Stock 2024-05-01 4 S 0 400 4.18 D 1802457 D Common Stock 2024-05-01 4 S 0 7923 4.25 D 1794534 D Common Stock 2024-05-01 4 S 0 310 4.26 D 1794224 D Common Stock 2024-05-01 4 S 0 317 4.265 D 1793907 D Common Stock 2024-05-01 4 S 0 100 4.27 D 1793807 D Common Stock 2024-05-01 4 S 0 200 4.275 D 1793607 D Common Stock 2024-05-01 4 S 0 337 4.28 D 1793270 D Common Stock 2024-05-01 4 S 0 200 4.285 D 1793070 D Common Stock 2024-05-01 4 S 0 2903 4.29 D 1790167 D Common Stock 2024-05-01 4 S 0 25 4.32 D 1790142 D Pursuant to an Investment Management Services Agreement with the Board of Regents of the University of Texas System (the "Regents"), The University of Texas/Texas A&M Investment Management Company, an institutional investment advisor, holds the shares reported herein on behalf of the Regents and is authorized to exercise investment discretion and voting power with respect to such shares on behalf of the Regents. On May 1, 2024, the Reporting Person filed a Form 4 that, due to an administrative error, reported sales on April 29, 2024, and April 30, 2024, that were not executed. This amendment is being filed solely to remove such sales and correct the resulting amount of shares reported as beneficially owned by the Reporting Person following the transactions reported herein. /s/ Joan Moeller, Chief Operating Officer 2024-05-14