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Filing Detail
Form SC 13D - General statement of acquisition of beneficial ownership:
SEC Accession No. 0001144204-18-014661
Filing Date
2018-03-14
Accepted
2018-03-14 16:30:27
Documents
1
Group Members
ATLAS VENTURE ASSOCIATES X, L.P.ATLAS VENTURE ASSOCIATES X, LLC

Document Format Files

Seq Description Document Type Size
1 SC 13D tv488511_sc13d.htm SC 13D 103069
  Complete submission text file 0001144204-18-014661.txt   104804
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 Fund X, L.P. (Filed by) CIK: 0001628098 (see all company filings)

IRS No.: 472435989 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13D

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 13D | Act: 34 | File No.: 005-90168 | Film No.: 18689826
SIC: 2834 Pharmaceutical Preparations