0000950170-24-029210.txt : 20240311 0000950170-24-029210.hdr.sgml : 20240311 20240311160240 ACCESSION NUMBER: 0000950170-24-029210 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240308 FILED AS OF DATE: 20240311 DATE AS OF CHANGE: 20240311 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: SCHILLING KEITH L CENTRAL INDEX KEY: 0001628467 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36481 FILM NUMBER: 24737930 MAIL ADDRESS: STREET 1: 24955 INTERSTATE 45 NORTH CITY: THE WOODLANDS STATE: TX ZIP: 77380 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 2024-03-08 0001145986 ASPEN AEROGELS INC ASPN 0001628467 SCHILLING KEITH L C/O ASPEN AEROGELS, INC., 30 FORBES ROAD, BLDG B NORTHBOROUGH MA 01532 false true false false SVP, Technology false Common Stock 2024-03-08 4 F false 2045 17.02 D 28792 D Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of Restricted Stock Units ("RSUs"). Represents 7,133 shares of Common Stock and 21,659 RSUs. /s/ Virginia H. Johnson, Attorney-in-Fact 2024-03-11