Type / Class
Equity / Common Stock, par value $0.001 per share
Shares outstanding
55,705,828
Total 13F shares
11,078,704
Share change
-4,029,340
Total reported value
$32,127,617
Price per share
$2.90
Number of holders
44
Value change
-$7,947,299
Number of buys
24
Number of sells
19

Institutional Holders of Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) as of Q2 2025

As of 30 Jun 2025, Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) was held by 44 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 11,078,704 shares. The largest 10 holders included Pfizer Inc, VANGUARD GROUP INC, Anson Funds Management LP, Alphabet Inc., RENAISSANCE TECHNOLOGIES LLC, Schonfeld Strategic Advisors LLC, GEODE CAPITAL MANAGEMENT, LLC, BlackRock, Inc., MONIMUS CAPITAL MANAGEMENT, LP, and Informed Momentum Co LLC. This page lists 44 institutional shareholders reporting positions in this security for the Q2 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.