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Spero Therapeutics, Inc. Director's Dealing 2021

Feb 10, 2021

34087_dirs_2021-02-10_85e4f586-6909-467f-a616-b556124652fa.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Spero Therapeutics, Inc. (SPRO)
CIK: 0001701108
Period of Report: 2021-02-08

Reporting Person: Aquilo Capital Management, LLC (10% Owner)
Reporting Person: Aquilo Capital, L.P. (10% Owner)

Non-Derivative Transactions

Date Security Code Shares Price A/D Holdings After Ownership
2021-02-08 Common Stock, $0.001 Par Value S 3000 $21.7384 Disposed 3829209 Indirect

Footnotes

F1: The reporting persons are Aquilo Capital, L.P. (the "Fund"), Aquilo Capital Management, LLC ("Aquilo") and Marc R. Schneidman. Aquilo is the general partner and investment adviser of the Fund and other funds managed by Aquilo that hold securities directly for the benefit of their investors. Aquilo may be deemed to beneficially own such securities indirectly as the investment adviser and general partner of the Fund and affiliated funds, and Mr. Schneidman may be deemed to beneficially own them indirectly as the control person of Aquilo. Each of Aquilo, the Fund and Mr. Schneidman disclaims beneficial ownership of such securities except to the extent of his or its pecuniary interest therein.