Steven R. Mitchell

Business address
C/O Aspen Aerogels, Inc., 30 Forbes Road, Building B, Northborough, MA, 01532
Top holdings (ownership)
ALKT and ASPN
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Steven R. Mitchell has filed 50 SEC EDGAR filings since 12 Jun 2014

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing FORM 4 07 Jan 2026 05 Jan 2026 001-40321
4 Open Document Open Filing FORM 4 07 Oct 2025 05 Oct 2025 001-40321
4 Open Document Open Filing FORM 4 08 Jul 2025 05 Jul 2025 001-40321
4 Open Document Open Filing FORM 4 16 May 2025 14 May 2025 001-40321
4 Open Document Open Filing 4 01 May 2025 30 Apr 2025 001-36481
4 Open Document Open Filing FORM 4 07 Apr 2025 05 Apr 2025 001-40321
4 Open Document Open Filing FORM 4 07 Jan 2025 05 Jan 2025 001-40321
4 Open Document Open Filing FORM 4 08 Oct 2024 05 Oct 2024 001-40321
4 Open Document Open Filing FORM 4 09 Jul 2024 05 Jul 2024 001-40321
4 Open Document Open Filing FORM 4 12 Jun 2024 11 Jun 2024 001-39510
4/A Open Document Open Filing FORM 4/A 12 Jun 2024 27 Sep 2021 001-39510
144 Open Document Open Filing 11 Jun 2024
4 Open Document Open Filing 4 31 May 2024 30 May 2024 001-36481
4 Open Document Open Filing FORM 4 17 May 2024 15 May 2024 001-40321
4 Open Document Open Filing FORM 4 08 Apr 2024 05 Apr 2024 001-40321
4 Open Document Open Filing FORM 4 09 Jan 2024 05 Jan 2024 001-40321
4 Open Document Open Filing FORM 4 06 Oct 2023 05 Oct 2023 001-40321
4 Open Document Open Filing FORM 4 SUBMISSION 07 Sep 2023 07 Sep 2023 001-36481
4 Open Document Open Filing FORM 4 SUBMISSION 06 Sep 2023 05 Sep 2023 001-36481
4 Open Document Open Filing FORM 4 31 Jul 2023 28 Jul 2023 001-40321
4 Open Document Open Filing FORM 4 07 Jul 2023 05 Jul 2023 001-40321
4 Open Document Open Filing FORM 4 SUBMISSION 02 Jun 2023 01 Jun 2023 001-36481
4 Open Document Open Filing FORM 4 19 May 2023 17 May 2023 001-40321
4 Open Document Open Filing FORM 4 07 Apr 2023 05 Apr 2023 001-40321
4 Open Document Open Filing FORM 4 09 Jan 2023 05 Jan 2023 001-40321
4 Open Document Open Filing FORM 4 07 Oct 2022 05 Oct 2022 001-40321
4 Open Document Open Filing FORM 4 06 Jul 2022 05 Jul 2022 001-40321
4 Open Document Open Filing FORM 4 SUBMISSION 06 Jun 2022 02 Jun 2022 001-36481
4 Open Document Open Filing FORM 4 20 May 2022 18 May 2022 001-40321
4 Open Document Open Filing FORM 4 07 Apr 2022 05 Apr 2022 001-40321
4 Open Document Open Filing FORM 4 07 Jan 2022 05 Jan 2022 001-40321
4 Open Document Open Filing PRIMARY DOCUMENT 19 Nov 2021 18 Nov 2021 001-39510
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021 001-40321
4 Open Document Open Filing FORM 4 29 Sep 2021 27 Sep 2021 001-39510
4 Open Document Open Filing FORM 4 29 Jul 2021 28 Jul 2021 001-40321
4 Open Document Open Filing FORM 4 SUBMISSION 03 Jun 2021 01 Jun 2021 001-36481
4 Open Document Open Filing FORM 4 16 Apr 2021 16 Apr 2021 001-40321
3 Open Document Open Filing FORM 3 13 Apr 2021 13 Apr 2021 001-40321
4 Open Document Open Filing PRIMARY DOCUMENT 25 Mar 2021 23 Mar 2021 001-39510
4 Open Document Open Filing PRIMARY DOCUMENT 21 Sep 2020 18 Sep 2020 001-39510
3 Open Document Open Filing PRIMARY DOCUMENT 21 Sep 2020 18 Sep 2020 001-39510
4 Open Document Open Filing FORM 4 SUBMISSION 22 Jun 2020 18 Jun 2020 001-36481
4 Open Document Open Filing FORM 4 SUBMISSION 21 Jun 2019 19 Jun 2019 001-36481
4 Open Document Open Filing FORM 4 SUBMISSION 22 Jun 2018 20 Jun 2018 001-36481
4 Open Document Open Filing FORM 4 SUBMISSION 15 Jun 2017 14 Jun 2017 001-36481
3/A Open Document Open Filing PRIMARY DOCUMENT 23 Mar 2017 30 Aug 2013 001-35779
4 Open Document Open Filing FORM 4 SUBMISSION 28 Jun 2016 24 Jun 2016 001-36481
4 Open Document Open Filing FORM 4 SUBMISSION 18 Jun 2015 17 Jun 2015 001-36481
4 Open Document Open Filing FORM 4 SUBMISSION 13 Jun 2014 12 Jun 2014 001-36481
3 Open Document Open Filing FORM 3 SUBMISSION 12 Jun 2014 12 Jun 2014 001-36481