0000950170-23-065545.txt : 20231121 0000950170-23-065545.hdr.sgml : 20231121 20231121164312 ACCESSION NUMBER: 0000950170-23-065545 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231120 FILED AS OF DATE: 20231121 DATE AS OF CHANGE: 20231121 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: WINDSOR JAMES BRIAN CENTRAL INDEX KEY: 0001790933 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38130 FILM NUMBER: 231428828 MAIL ADDRESS: STREET 1: 2600 VIA FORTUNA, SUITE 360 CITY: AUSTIN STATE: TX ZIP: 78746 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: AILERON THERAPEUTICS INC CENTRAL INDEX KEY: 0001420565 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 738 MAIN STREET STREET 2: UNIT 398 CITY: WALTHAM STATE: MA ZIP: 02451 BUSINESS PHONE: 617-995-0900 MAIL ADDRESS: STREET 1: 738 MAIN STREET STREET 2: UNIT 398 CITY: WALTHAM STATE: MA ZIP: 02451 4 1 ownership.xml 4 X0508 4 2023-11-20 0001420565 AILERON THERAPEUTICS INC ALRN 0001790933 WINDSOR JAMES BRIAN C/O AILERON THERAPEUTICS, INC. 738 MAIN STREET #398 WALTHAM MA 02451 false true false false President and COO false Common Stock 2023-11-20 4 P false 5076 1.9675 A 5122 D This transaction was executed in multiple trades at prices ranging from $1.965 - $1.9699. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. /s/ James Brian Windsor 2023-11-21