Vanguard Group Inc Spero Therapeutics, Inc. Transaction History

Vanguard Group Inc

$5.97 Trillion
Q2 2025

A detailed history of Vanguard Group Inc transactions in Spero Therapeutics, Inc. stock. As of the latest transaction made, Vanguard Group Inc holds 1,950,381 shares of SPRO stock, worth $4.6 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

1,950,381

Previous 1,763,620 10.59%

Holding current value

$4.6 Million

Previous $1.27 Million 345.71%

% of portfolio

0.0%

Previous 0.0%

15 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 11, 2025	BUY	$0.56 - $3.02 $104,586 - $564,018	186,761 Added 10.59%	1,950,381 $5.66 Million
Q3 2024 Nov 13, 2024	SELL	$1.19 - $1.5 $8,216 - $10,357	-6,905 Reduced 0.39%	1,763,620 $2.36 Million
Q2 2024 Aug 13, 2024	BUY	$1.27 - $1.8 $148,708 - $210,767	117,093 Added 7.08%	1,770,525 $2.3 Million
Q1 2024 May 10, 2024	BUY	$1.35 - $1.79 $13,061 - $17,318	9,675 Added 0.59%	1,653,432 $2.84 Million
Q4 2023 Feb 14, 2024	BUY	$1.0 - $1.47 $86,161 - $126,656	86,161 Added 5.53%	1,643,757 $2.42 Million
Q3 2023 Nov 14, 2023	BUY	$1.2 - $1.63 $37,346 - $50,728	31,122 Added 2.04%	1,557,596 $1.88 Million
Q2 2023 Aug 14, 2023	BUY	$1.42 - $1.95 $141,862 - $194,810	99,903 Added 7.0%	1,526,474 $2.21 Million
Q1 2023 May 15, 2023	BUY	$1.35 - $2.0 $502,447 - $744,366	372,183 Added 35.3%	1,426,571 $2.07 Million
Q4 2022 Feb 10, 2023	BUY	$1.55 - $2.12 $1,030 - $1,409	665 Added 0.06%	1,054,388 $1.82 Million
Q3 2022 Nov 14, 2022	SELL	$0.68 - $2.2 $130,742 - $422,991	-192,269 Reduced 15.43%	1,053,723 $2.11 Million
Q2 2022 Aug 12, 2022	SELL	$0.74 - $7.44 $94,672 - $951,843	-127,936 Reduced 9.31%	1,245,992 $924,000
Q1 2022 May 13, 2022	BUY	$7.87 - $15.15 $177,468 - $341,632	22,550 Added 1.67%	1,373,928 $12 Million
Q4 2021 Feb 14, 2022	BUY	$13.09 - $18.77 $770,739 - $1.11 Million	58,880 Added 4.56%	1,351,378 $21.6 Million
Q3 2021 Nov 12, 2021	BUY	$13.03 - $19.51 $204,675 - $306,463	15,708 Added 1.23%	1,292,498 $23.8 Million
Q2 2021 Aug 13, 2021	BUY	$12.22 - $15.79 $15.6 Million - $20.2 Million	1,276,790 New	1,276,790 $17.8 Million

Others Institutions Holding SPRO

# of Institutions

Shares Held

10.4M

Call Options Held

Put Options Held

186K

View Full List

About Spero Therapeutics, Inc.

Ticker SPRO
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 35,067,500
Market Cap $82.8M
Description
Spero Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on identifying, developing, and commercializing treatments for multi-drug resistant (MDR) bacterial infections and rare diseases in the United States. The company's product candidates include tebipenem pivoxil hydrobromide (HBr), an oral carbapenem-class antibiotic to ...

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Vanguard Group Inc Spero Therapeutics, Inc. Transaction History