0001209191-21-016066.txt : 20210302 0001209191-21-016066.hdr.sgml : 20210302 20210302163952 ACCESSION NUMBER: 0001209191-21-016066 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210226 FILED AS OF DATE: 20210302 DATE AS OF CHANGE: 20210302 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Young Donald R CENTRAL INDEX KEY: 0001610257 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36481 FILM NUMBER: 21704387 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] IRS NUMBER: 043559972 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 doc4.xml FORM 4 SUBMISSION X0306 4 2021-02-26 0 0001145986 ASPEN AEROGELS INC ASPN 0001610257 Young Donald R C/O ASPEN AEROGELS, INC. 30 FORBES ROAD, BUILDING B NORTHBOROUGH MA 01532 1 1 0 0 President and CEO Common Stock 2021-02-26 4 F 0 2268 22.25 D 266127 D Common Stock 2021-02-27 4 F 0 9501 22.25 D 256626 D Common Stock 2021-02-28 4 F 0 11112 22.25 D 245514 D Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based restricted stock units ("RSUs"). Represents 153,890 shares of Common Stock and 112,237 Restricted Stock Units. Represents 176,758 shares of Common Stock and 79,868 Restricted Stock Units. Represents 191,190 shares of Common Stock and 54,324 Restricted Stock Units. /s/ Poongunran Muthukumaran, Attorney-in-Fact 2021-03-02