Home/Filings/4/0000899243-22-004586
4//SEC Filing

JOSEPH TAMARA L 4

Accession 0000899243-22-004586

CIK 0001701108other

Filed

Feb 2, 7:00 PM ET

Accepted

Feb 3, 4:17 PM ET

Size

11.5 KB

Accession

0000899243-22-004586

Insider Transaction Report

Form 4
Period: 2022-02-01
JOSEPH TAMARA L
Chief Legal Officer
Transactions
  • Award

    Common Stock

    2022-02-01+38,01462,081 total
  • Award

    Stock Option (Right to Buy)

    2022-02-01+53,19053,190 total
    Exercise: $11.18Exp: 2032-02-01Common Stock (53,190 underlying)
Footnotes (3)
  • [F1]Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of common stock upon vesting. The RSUs vest in four equal annual installments beginning on February 1, 2023, subject to the Reporting Person's continued service through the applicable vesting date.
  • [F2]Consists of 62,081 RSUs held by the Reporting Person.
  • [F3]The shares underlying this option vest as to 25% on February 1, 2023, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service through the applicable vesting date.

Issuer

Spero Therapeutics, Inc.

CIK 0001701108

Entity typeother

Related Parties

1
  • filerCIK 0001433991

Filing Metadata

Form type
4
Filed
Feb 2, 7:00 PM ET
Accepted
Feb 3, 4:17 PM ET
Size
11.5 KB