Atlas Venture Fund XII, L.P. SEC EDGAR Filings (CIK 0001812049)

SEC EDGAR filings, ownership reports, and insider transactions for Atlas Venture Fund XII, L.P..

Business address
400 Technology Square, 10 Th Floor, Cambridge, MA, 02139
Top holdings (ownership)
AVTE
Top holdings (Schedule 13D)
JBIO and VIGL
State of incorporation
DE
Fiscal year end
31 December
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Atlas Venture Fund XII, L.P. has filed 22 SEC EDGAR filings since 04 Jun 2020

Latest Filings

Recent SEC filings for Atlas Venture Fund XII, L.P. including 144, SCHEDULE 13D/A, 4 and more.

Form type Document Filing Description Filing date Reporting date File number(s)
144 Open 144 document View SEC filing for 144 17 Dec 2025
144 Open 144 document View SEC filing for 144 16 Dec 2025
144 Open 144 document View SEC filing for 144 15 Dec 2025
144 Open 144 document View SEC filing for 144 12 Dec 2025
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 07 Aug 2025
4 Open 4 document View SEC filing for 4 07 Aug 2025 05 Aug 2025 001-41200
144 Open 144 document View SEC filing for 144 25 Jun 2025
144 Open 144 document View SEC filing for 144 24 Jun 2025
144 Open 144 document View SEC filing for 144 06 May 2025
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 30 Apr 2025
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A AMENDMENT TO FORM SC 13D 15 Dec 2022
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A AMENDMENT TO FORM SC 13D 20 Jul 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Jul 2022 15 Jul 2022 001-40544
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A AMENDMENT TO FORM SC 13D 05 May 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Apr 2022 01 Apr 2022 001-40544
SC 13D Open SC 13D document View SEC filing for SC 13D ACQUISITION OF BENEFICIAL OWNERSHIP 21 Jan 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Jan 2022 11 Jan 2022 001-41200
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 06 Jan 2022 06 Jan 2022 001-41200
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 06 Jul 2021 02 Jul 2021 001-40544
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 29 Jun 2021 29 Jun 2021 001-40544
3 Open 3 document View SEC filing for 3 11 Feb 2021 05 Feb 2021 001-39438
D Open D document View SEC filing for D 04 Jun 2020 021-368325

About this filer

Atlas Venture Fund XII, L.P. files with the SEC under CIK 0001812049. 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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