4//SEC Filing
Larkin Cristina 4
Accession 0000899243-20-034477
CIK 0001701108other
Filed
Dec 17, 7:00 PM ET
Accepted
Dec 18, 4:15 PM ET
Size
8.9 KB
Accession
0000899243-20-034477
Insider Transaction Report
Form 4
Larkin Cristina
Chief Operating Officer
Transactions
- Exercise/Conversion
Common Stock
2020-12-16$5.90/sh+12,000$70,800→ 13,500 total - Sale
Common Stock
2020-12-16$19.00/sh−12,000$228,000→ 1,500 total - Exercise/Conversion
Stock Option (Right to Buy)
2020-12-16−12,000→ 8,434 totalExercise: $5.90Exp: 2027-07-05→ Common Stock (12,000 underlying)
Footnotes (2)
- [F1]All transactions reported on this Form 4 were made pursuant to a previously adopted Rule 10b5-1 trading plan. Specifically, the transactions reported herein relate to option exercises and related sales (totaling 12,000 shares).
- [F2]All shares underlying this option were fully vested as of March 7, 2020.
Documents
Issuer
Spero Therapeutics, Inc.
CIK 0001701108
Entity typeother
Related Parties
1- filerCIK 0001721173
Filing Metadata
- Form type
- 4
- Filed
- Dec 17, 7:00 PM ET
- Accepted
- Dec 18, 4:15 PM ET
- Size
- 8.9 KB