Severin Hacker

Business address
C/O Duolingo, Inc., 5900 Penn Ave., 15206 Pittsburgh, PA
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Severin Hacker has filed 85 SEC EDGAR filings since 7/27/2021

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing FORM 4 Dec 9, 2025 Dec 8, 2025 001-40653
4 Open Document Open Filing FORM 4 Dec 3, 2025 Dec 1, 2025 001-40653
4 Open Document Open Filing FORM 4 Nov 20, 2025 Nov 19, 2025 001-40653
4 Open Document Open Filing FORM 4 Nov 6, 2025 Nov 4, 2025 001-40653
4 Open Document Open Filing FORM 4 Oct 22, 2025 Oct 20, 2025 001-40653
4 Open Document Open Filing FORM 4 Oct 7, 2025 Oct 6, 2025 001-40653
144 Open Document Open Filing Oct 6, 2025
4 Open Document Open Filing FORM 4 Sep 22, 2025 Sep 19, 2025 001-40653
4 Open Document Open Filing FORM 4 Sep 9, 2025 Sep 5, 2025 001-40653
4 Open Document Open Filing FORM 4 Aug 22, 2025 Aug 20, 2025 001-40653
4 Open Document Open Filing FORM 4 Aug 21, 2025 Aug 19, 2025 001-40653
4 Open Document Open Filing FORM 4 Aug 7, 2025 Aug 5, 2025 001-40653
4 Open Document Open Filing FORM 4 Jul 22, 2025 Jul 21, 2025 001-40653
4 Open Document Open Filing FORM 4 Jul 9, 2025 Jul 7, 2025 001-40653
4 Open Document Open Filing FORM 4 Jun 23, 2025 Jun 20, 2025 001-40653
144 Open Document Open Filing Jun 20, 2025
4 Open Document Open Filing FORM 4 Jun 10, 2025 Jun 6, 2025 001-40653
4 Open Document Open Filing FORM 4 Jun 9, 2025 Jun 5, 2025 001-40653
4 Open Document Open Filing FORM 4 May 20, 2025 May 19, 2025 001-40653
4 Open Document Open Filing FORM 4 May 7, 2025 May 5, 2025 001-40653
4 Open Document Open Filing FORM 4 Apr 23, 2025 Apr 21, 2025 001-40653
SCHEDULE 13G/A Open Document Open Filing Apr 17, 2025
4 Open Document Open Filing FORM 4 Apr 9, 2025 Apr 7, 2025 001-40653
4 Open Document Open Filing FORM 4 Mar 21, 2025 Mar 19, 2025 001-40653
144 Open Document Open Filing Mar 19, 2025
4 Open Document Open Filing FORM 4 Mar 6, 2025 Mar 5, 2025 001-40653
4 Open Document Open Filing FORM 4 Feb 21, 2025 Feb 19, 2025 001-40653
4 Open Document Open Filing FORM 4 Feb 6, 2025 Feb 5, 2025 001-40653
4 Open Document Open Filing FORM 4 Jan 23, 2025 Jan 21, 2025 001-40653
4 Open Document Open Filing FORM 4 Jan 7, 2025 Jan 6, 2025 001-40653
4 Open Document Open Filing FORM 4 Jan 3, 2025 Dec 26, 2024 001-40653
4 Open Document Open Filing FORM 4 Dec 20, 2024 Dec 19, 2024 001-40653
144 Open Document Open Filing Dec 19, 2024
4 Open Document Open Filing FORM 4 Dec 16, 2024 Dec 13, 2024 001-40653
4 Open Document Open Filing FORM 4 Dec 13, 2024 Dec 12, 2024 001-40653
4 Open Document Open Filing FORM 4 Dec 13, 2024 Dec 11, 2024 001-40653
144 Open Document Open Filing Dec 11, 2024
4 Open Document Open Filing FORM 4 Dec 2, 2024 Nov 12, 2024 001-40653
4/A Open Document Open Filing FORM 4/A Nov 27, 2024 Nov 22, 2024 001-40653
4 Open Document Open Filing FORM 4 Nov 26, 2024 Nov 22, 2024 001-40653
4 Open Document Open Filing FORM 4 Aug 26, 2024 Aug 22, 2024 001-40653
4 Open Document Open Filing FORM 4 Aug 2, 2024 Aug 1, 2024 001-40653
4 Open Document Open Filing FORM 4 Jul 2, 2024 Jul 1, 2024 001-40653
4 Open Document Open Filing FORM 4 Jun 5, 2024 Jun 3, 2024 001-40653
144 Open Document Open Filing Jun 3, 2024
4 Open Document Open Filing FORM 4 May 3, 2024 May 1, 2024 001-40653
4 Open Document Open Filing FORM 4 Apr 2, 2024 Apr 1, 2024 001-40653
4 Open Document Open Filing FORM 4 Mar 15, 2024 Mar 13, 2024 001-40653
4 Open Document Open Filing FORM 4 Mar 4, 2024 Mar 1, 2024 001-40653
144 Open Document Open Filing Mar 1, 2024
SC 13G/A Open Document Open Filing SC 13G/A Feb 5, 2024
4 Open Document Open Filing FORM 4 Feb 5, 2024 Feb 1, 2024 001-40653
4 Open Document Open Filing FORM 4 Jan 3, 2024 Jan 2, 2024 001-40653
4 Open Document Open Filing FORM 4 Dec 4, 2023 Dec 1, 2023 001-40653
144 Open Document Open Filing Dec 1, 2023
4 Open Document Open Filing FORM 4 Nov 2, 2023 Nov 1, 2023 001-40653
4 Open Document Open Filing FORM 4 Oct 5, 2023 Oct 2, 2023 001-40653
4 Open Document Open Filing FORM 4 Sep 19, 2023 Aug 30, 2023 001-40653
4 Open Document Open Filing FORM 4 Sep 6, 2023 May 31, 2023 001-40653
144 Open Document Open Filing Sep 1, 2023
4 Open Document Open Filing FORM 4 Aug 16, 2023 Aug 14, 2023 001-40653
4 Open Document Open Filing FORM 4 May 2, 2023 May 1, 2023 001-40653
4 Open Document Open Filing FORM 4 Apr 4, 2023 Apr 3, 2023 001-40653
SC 13G/A Open Document Open Filing SC 13G/A Mar 28, 2023
4 Open Document Open Filing FORM 4 Mar 2, 2023 Mar 1, 2023 001-40653
4 Open Document Open Filing FORM 4 Feb 2, 2023 Feb 1, 2023 001-40653
4 Open Document Open Filing FORM 4 Jan 27, 2023 Dec 12, 2022 001-40653
4 Open Document Open Filing FORM 4 Jan 11, 2023 Jan 9, 2023 001-40653
4 Open Document Open Filing FORM 4 Dec 15, 2022 Dec 14, 2022 001-40653
4 Open Document Open Filing FORM 4 Nov 2, 2022 Nov 1, 2022 001-40653
4 Open Document Open Filing FORM 4 Oct 4, 2022 Oct 3, 2022 001-40653
4 Open Document Open Filing FORM 4 Sep 6, 2022 Sep 1, 2022 001-40653
4 Open Document Open Filing FORM 4 Aug 2, 2022 Aug 1, 2022 001-40653
4 Open Document Open Filing FORM 4 Jul 5, 2022 Jul 1, 2022 001-40653
4 Open Document Open Filing FORM 4 Jun 27, 2022 Jun 23, 2022 001-40653
4 Open Document Open Filing FORM 4 Jun 21, 2022 Jun 16, 2022 001-40653
4 Open Document Open Filing FORM 4 Jun 13, 2022 Jun 9, 2022 001-40653
4 Open Document Open Filing FORM 4 Jun 3, 2022 Jun 1, 2022 001-40653
SC 13G Open Document Open Filing SC 13G Feb 11, 2022
4 Open Document Open Filing FORM 4 Feb 10, 2022 Dec 14, 2021 001-40653
4 Open Document Open Filing FORM 4 Dec 10, 2021 Dec 8, 2021 001-40653
4 Open Document Open Filing FORM 4 Nov 17, 2021 Nov 15, 2021 001-40653
4 Open Document Open Filing FORM 4 Sep 22, 2021 Aug 15, 2021 001-40653
4 Open Document Open Filing FORM 4 Aug 2, 2021 Jul 30, 2021 001-40653
3 Open Document Open Filing FORM 3 Jul 27, 2021 Jul 27, 2021 001-40653