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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0001104659-22-007249
Filing Date
2022-01-25
Accepted
2022-01-25 11:28:42
Documents
1
Group Members
ATLAS VENTURE ASSOCIATES IX, INC.ATLAS VENTURE ASSOCIATES IX, L.P.

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13G/A tm224309d1_sc13ga.htm SC 13G/A 77105
  Complete submission text file 0001104659-22-007249.txt   78806
Mailing Address 56 WAREHAM STREET, FLOOR 3 BOSTON MA 02118
Business Address 56 WAREHAM STREET, FLOOR 3 BOSTON MA 02118 617-588-2694
Atlas Venture Fund IX, L.P. (Filed by) CIK: 0001671219 (see all company filings)

IRS No.: 461357890 | State of Incorp.: DE | Fiscal Year End: 1012
Type: SC 13G/A

Mailing Address 675 MASSACHUSETTS AVENUE 14TH FLOOR CAMBRIDGE MA 02139
Business Address 675 MASSACHUSETTS AVENUE 14TH FLOOR CAMBRIDGE MA 02139 857-242-1600
Spero Therapeutics, Inc. (Subject) CIK: 0001701108 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-90168 | Film No.: 22551870
SIC: 2834 Pharmaceutical Preparations