Hacker Severin SEC EDGAR Filings (CIK 0001870272)

SEC EDGAR filings, ownership reports, and insider transactions for Hacker Severin.

Business address
C/O Duolingo, Inc., 5900 Penn Ave., Pittsburgh, PA, 15206
Top holdings (ownership)
DUOL
Top holdings (Schedule 13G)
DUOL
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Hacker Severin has filed 85 SEC EDGAR filings since 27 Jul 2021

Latest Filings

Recent SEC filings for Hacker Severin including 4, 144, SCHEDULE 13G/A and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 FORM 4 09 Dec 2025 08 Dec 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 03 Dec 2025 01 Dec 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 20 Nov 2025 19 Nov 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 06 Nov 2025 04 Nov 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 22 Oct 2025 20 Oct 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 07 Oct 2025 06 Oct 2025 001-40653
144 Open 144 document View SEC filing for 144 06 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 22 Sep 2025 19 Sep 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 09 Sep 2025 05 Sep 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 22 Aug 2025 20 Aug 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 21 Aug 2025 19 Aug 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 07 Aug 2025 05 Aug 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 22 Jul 2025 21 Jul 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 09 Jul 2025 07 Jul 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 23 Jun 2025 20 Jun 2025 001-40653
144 Open 144 document View SEC filing for 144 20 Jun 2025
4 Open 4 document View SEC filing for 4 FORM 4 10 Jun 2025 06 Jun 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 09 Jun 2025 05 Jun 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 20 May 2025 19 May 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 07 May 2025 05 May 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 23 Apr 2025 21 Apr 2025 001-40653
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 17 Apr 2025
4 Open 4 document View SEC filing for 4 FORM 4 09 Apr 2025 07 Apr 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 21 Mar 2025 19 Mar 2025 001-40653
144 Open 144 document View SEC filing for 144 19 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 06 Mar 2025 05 Mar 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 21 Feb 2025 19 Feb 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 06 Feb 2025 05 Feb 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 23 Jan 2025 21 Jan 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 07 Jan 2025 06 Jan 2025 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2025 26 Dec 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 20 Dec 2024 19 Dec 2024 001-40653
144 Open 144 document View SEC filing for 144 19 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 16 Dec 2024 13 Dec 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 13 Dec 2024 12 Dec 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 13 Dec 2024 11 Dec 2024 001-40653
144 Open 144 document View SEC filing for 144 11 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 02 Dec 2024 12 Nov 2024 001-40653
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 27 Nov 2024 22 Nov 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 26 Nov 2024 22 Nov 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 26 Aug 2024 22 Aug 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 02 Aug 2024 01 Aug 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2024 01 Jul 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 05 Jun 2024 03 Jun 2024 001-40653
144 Open 144 document View SEC filing for 144 03 Jun 2024
4 Open 4 document View SEC filing for 4 FORM 4 03 May 2024 01 May 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2024 01 Apr 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 15 Mar 2024 13 Mar 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 04 Mar 2024 01 Mar 2024 001-40653
144 Open 144 document View SEC filing for 144 01 Mar 2024
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 05 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 05 Feb 2024 01 Feb 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2024 02 Jan 2024 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 04 Dec 2023 01 Dec 2023 001-40653
144 Open 144 document View SEC filing for 144 01 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 02 Nov 2023 01 Nov 2023 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 05 Oct 2023 02 Oct 2023 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 19 Sep 2023 30 Aug 2023 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 06 Sep 2023 31 May 2023 001-40653
144 Open 144 document View SEC filing for 144 01 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 16 Aug 2023 14 Aug 2023 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 02 May 2023 01 May 2023 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2023 03 Apr 2023 001-40653
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 28 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 02 Mar 2023 01 Mar 2023 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 02 Feb 2023 01 Feb 2023 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 27 Jan 2023 12 Dec 2022 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 11 Jan 2023 09 Jan 2023 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2022 14 Dec 2022 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 02 Nov 2022 01 Nov 2022 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 04 Oct 2022 03 Oct 2022 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 06 Sep 2022 01 Sep 2022 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 02 Aug 2022 01 Aug 2022 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2022 01 Jul 2022 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 27 Jun 2022 23 Jun 2022 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 21 Jun 2022 16 Jun 2022 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 13 Jun 2022 09 Jun 2022 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 03 Jun 2022 01 Jun 2022 001-40653
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 11 Feb 2022
4 Open 4 document View SEC filing for 4 FORM 4 10 Feb 2022 14 Dec 2021 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 10 Dec 2021 08 Dec 2021 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 17 Nov 2021 15 Nov 2021 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 22 Sep 2021 15 Aug 2021 001-40653
4 Open 4 document View SEC filing for 4 FORM 4 02 Aug 2021 30 Jul 2021 001-40653
3 Open 3 document View SEC filing for 3 FORM 3 27 Jul 2021 27 Jul 2021 001-40653

About this filer

Hacker Severin files with the SEC under CIK 0001870272. This page aggregates EDGAR filings and related ownership activity.

See reporting owner transactions.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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