Form UPLOAD - SEC-generated letter:
SEC Accession No. 0000000000-21-003234
Filing Date
2021-03-17
Accepted
2021-03-17 18:30:06
Documents
2

Document Format Files

Seq Description Document Type Size
1 filename1.pdf LETTER 27672
2 filename2.txt TEXT-EXTRACT 1526
  Complete submission text file 0000000000-21-003234.txt   40363
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. (Filed for) CIK: 0001701108 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: UPLOAD
SIC: 2834 Pharmaceutical Preparations