American Century Companies Inc Spero Therapeutics, Inc. Transaction History
American Century Companies Inc
- $188 Billion
- Q3 2025
A detailed history of American Century Companies Inc transactions in Spero Therapeutics, Inc. stock. As of the latest transaction made, American Century Companies Inc holds 40,219 shares of SPRO stock, worth $96,927. This represents 0.0% of its overall portfolio holdings.
Number of Shares
40,219Holding current value
$96,927% of portfolio
0.0%Shares
1 transactions
Others Institutions Holding SPRO
# of Institutions
51Shares Held
10.6MCall Options Held
0Put Options Held
65.7K-
Vanguard Group Inc Valley Forge, PA1.99MShares$4.8 Million0.0% of portfolio
-
Anson Funds Management LP Dallas, TX1.6MShares$3.86 Million0.5% of portfolio
-
Jim Simons Renaissance Technologies LLC | New York, Ny1.45MShares$3.5 Million0.0% of portfolio
-
Atlas Venture Associates Ix, LLC Boston, MA1.35MShares$3.26 Million14.54% of portfolio
-
Alphabet Inc. Mountain View, CA890KShares$2.14 Million0.1% of portfolio
About Spero Therapeutics, Inc.
- Ticker SPRO
- Exchange NASDAQ
- Sector Healthcare
- Industry Biotechnology
- Shares Outstandng 35,067,500
- Market Cap $84.5M
- 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 ...