A detailed history of Cubist Systematic Strategies, LLC transactions in Spero Therapeutics, Inc. stock. As of the latest transaction made, Cubist Systematic Strategies, LLC holds 27,140 shares of SPRO stock, worth $64,321. This represents 0.0% of its overall portfolio holdings.

Number of Shares
27,140
Holding current value
$64,321
% of portfolio
0.0%

Shares

5 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q2 2025

Aug 14, 2025

BUY
$0.56 - $3.02 $15,198 - $81,962
27,140 New
27,140 $78,000
Q2 2022

Aug 15, 2022

SELL
$0.74 - $7.44 $10,466 - $105,231
-14,144 Closed
0 $0
Q1 2022

May 16, 2022

BUY
$7.87 - $15.15 $111,313 - $214,281
14,144 New
14,144 $123,000
Q4 2018

Feb 14, 2019

SELL
$5.69 - $11.28 $5,724 - $11,347
-1,006 Closed
0 $0
Q3 2018

Nov 14, 2018

BUY
$9.69 - $17.79 $9,748 - $17,896
1,006 New
1,006 $11,000

Others Institutions Holding SPRO

About Spero Therapeutics, Inc.


  • Ticker SPRO
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Biotechnology
  • Shares Outstandng 35,067,500
  • Market Cap $83.1M
  • 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 ...
More about SPRO
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