Type / Class
Equity / Common Stock, par value $0.001 per share
Shares outstanding
55,705,828
Total 13F shares
86,484
Share change
-18,357
Total reported value
$207,017
Price per share
$2.33
Number of holders
4
Value change
-$42,772
Number of sells
1

Institutional Holders of Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) as of Q4 2025

As of 31 Dec 2025, Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) was held by 4 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 86,484 shares. The largest 4 holders included Capital Asset Advisory Services LLC, Three Seasons Wealth, LLC, Assenagon Asset Management S.A., and FNY Investment Advisers, LLC. This page lists 4 institutional shareholders reporting positions in this security for the Q4 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.