Form 144 - Report of proposed sale of securities:
SEC Accession No. 0001961863-25-000123
Filing Date
2025-07-18
Accepted
2025-07-18 16:33:38
Documents
1

Document Format Files

Seq Description Document Type Size
1 primary_doc.html 144  
1 primary_doc.xml 144 2837
  Complete submission text file 0001961863-25-000123.txt   4690
Mailing Address 400 TECHNOLOGY SQUARE, 10TH FLOOR CAMBRIDGE MA 02139
Business Address 400 TECHNOLOGY SQUARE, 10TH FLOOR CAMBRIDGE MA 02139 857-201-2700
Atlas Venture Opportunity Fund I, L.P. (Reporting) CIK: 0001759241 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 144

Mailing Address 321 ARSENAL STREET, SUITE 101 WATERTOWN MA 02472
Business Address 321 ARSENAL STREET, SUITE 101 WATERTOWN MA 02472 (617) 674-9274
Disc Medicine, Inc. (Subject) CIK: 0001816736 (see all company filings)

EIN.: 851613057 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 144 | Act: 33 | File No.: 001-39438 | Film No.: 251134883
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)