Ownership

Timothy Keutzer

Insider Reports History

Entity: Individual
Location: C/O Spero Therapeutics, Inc., 675 Massachusetts Avenue, 14 Th Floor, Cambridge, MA
Signature: /s/ Maegan Deare, Attorney-in-Fact for Timothy Keutzer
All insider transactions: Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Timothy Keutzer:

Stock	Role	Class	Num Shares	Value	Price $	Report Date	Ownership
Spero Therapeutics, Inc.	Chief Operating Officer	Common Stock	741K	$578K	$0.78	Feb 5, 2025	Direct

Showing 1 to 1 of 1 entries

Insider Reports Filed by Timothy Keutzer

Symbol	Company	Period	Transactions	Value $	Form Type	Date Filed	Role
SPRO	Spero Therapeutics, Inc.	Feb 3, 2025	4	-$44.1K	4	Feb 5, 2025	Chief Operating Officer
SPRO	Spero Therapeutics, Inc.	Aug 27, 2024	1	-$2.99K	4	Aug 29, 2024	Chief Operating Officer
SPRO	Spero Therapeutics, Inc.	Feb 1, 2024	2	-$42.1K	4	Feb 5, 2024	Chief Operating Officer
SPRO	Spero Therapeutics, Inc.	Aug 28, 2023	1	-$2.34K	4	Aug 30, 2023	Chief Development Officer
SPRO	Spero Therapeutics, Inc.	Feb 1, 2023	2	-$6.31K	4	Feb 3, 2023	Chief Operating Officer
SPRO	Spero Therapeutics, Inc.	Feb 1, 2022	2	$0	4	Feb 3, 2022	Chief Development Officer
SPRO	Spero Therapeutics, Inc.	Aug 26, 2021	1	$0	4	Aug 30, 2021	Chief Development Officer