0000950170-24-020886.txt : 20240227 0000950170-24-020886.hdr.sgml : 20240227 20240227133709 ACCESSION NUMBER: 0000950170-24-020886 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240223 FILED AS OF DATE: 20240227 DATE AS OF CHANGE: 20240227 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Landes Gregg CENTRAL INDEX KEY: 0001731877 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36481 FILM NUMBER: 24684898 MAIL ADDRESS: STREET 1: C/O ASPEN AEROGELS, INC. STREET 2: 30 FORBES ROAD, BUILDING B CITY: NORTHBOROUGH STATE: MA ZIP: 01532 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: ASPEN AEROGELS INC CENTRAL INDEX KEY: 0001145986 STANDARD INDUSTRIAL CLASSIFICATION: WHOLESALE-LUMBER & OTHER CONSTRUCTION MATERIALS [5030] ORGANIZATION NAME: 07 Trade & Services IRS NUMBER: 043559972 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 30 FORBES ROAD STREET 2: BUILDING B CITY: NORTHBOROUGH STATE: MA ZIP: 01532 BUSINESS PHONE: 5086911111 MAIL ADDRESS: STREET 1: 30 FORBES ROAD STREET 2: BUILDING B CITY: NORTHBOROUGH STATE: MA ZIP: 01532 4 1 ownership.xml 4 X0508 4 2024-02-23 0001145986 ASPEN AEROGELS INC ASPN 0001731877 Landes Gregg C/O ASPEN AEROGELS, INC., 30 FORBES ROAD, BLDG B NORTHBOROUGH MA 01532 false true false false SVP, Operations and Strat Deve false Common Stock 2024-02-23 4 F false 495 16.96 D 125898 D Common Stock 2024-02-24 4 F false 330 16.96 D 125568 D Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of Restricted Stock Units ("RSUs"). Represents 54,033 shares of Common Stock, 17,945 RSUs and 53,590 shares of Restricted Stock. /s/ Virginia H. Johnson, Attorney-in-Fact 2024-02-27