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Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
SEC Accession No. 0000078003-21-000085
Filing Date
2021-07-09
Accepted
2021-07-09 16:25:02
Documents
1

Document Format Files

Seq Description Document Type Size
1 SC 13G SPERO THERAPEUTICS, INC. sperosc13g.htm SC 13G 38637
  Complete submission text file 0000078003-21-000085.txt   40365
Mailing Address 235 E 42ND ST NEW YORK NY 10017
Business Address 235 E 42ND ST NEW YORK NY 10017 2125732323
PFIZER INC (Filed by) CIK: 0000078003 (see all company filings)

IRS No.: 135315170 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G
SIC: 2834 Pharmaceutical Preparations

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 | Act: 34 | File No.: 005-90168 | Film No.: 211083071
SIC: 2834 Pharmaceutical Preparations