0000950170-23-071200.txt : 20231218 0000950170-23-071200.hdr.sgml : 20231218 20231218175631 ACCESSION NUMBER: 0000950170-23-071200 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231215 FILED AS OF DATE: 20231218 DATE AS OF CHANGE: 20231218 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: WINDSOR JAMES BRIAN CENTRAL INDEX KEY: 0001790933 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38130 FILM NUMBER: 231494983 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] ORGANIZATION NAME: 03 Life Sciences 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 2023-12-15 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 2023-12-15 4 P false 225 3.37 A 225 I By son Common Stock 5122 D The reporting person disclaims beneficial ownership of all securities held by his son, and this report should not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose /s/ James Brian Windsor 2023-12-18