Form Type: 4

SEC EDGAR Link
Accession Number:0000899243-20-029337
Date:2020-10-27
Issuer: SPERO THERAPEUTICS, INC. (SPRO)
Original Submission Date:

Reporting Person:

THOMAS FRANK E
C/O SPERO THERAPEUTICS, INC.
675 MASSACHUSETTS AVENUE, 14TH FLOOR CAMBRIDGE, MA 02139

Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
Title of SecurityTransaction Date2a. Deemed Execution Date Transaction CodeSharesAcquired or DisposedPrice per share 5. Amount of Securities Beneficially Owned Following Reported Transaction 6. Ownership Form Direct or IndirectNature of Indirect Ownership
Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, convertible securities
Title of Derivative Security Conversion or Exercise Price of Derivative Security Transaction Date Deemed Execution Date Transaction Code Number of Derivative Securities Acquired (A) or Disposed of (D) Date ExercisableExpiration Date Title and Amount of Securities Underlying Derivative Security Price of Derivative Security Number of derivative Securities Beneficially Owned Following Reported Transaction(s) Ownership Form: Direct (D) or Indirect (I) Nature of Indirect Beneficial Ownership
STOCK OPTION (RIGHT TO BUY) 13.52 2020-10-27 deemed execution date A 7,500 (a) 2030-10-27 common stock 7,500 $13.52 7,500 direct
Footnotes
IDfootnote
f1 the shares underlying this option will vest and become exercisable in full on october 27, 2021 subject to the reporting person's continued service as a director through the vesting date.
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