Type / Class
Equity / Common Stock, par value $0.001 per share
Shares outstanding
55,705,828
Number of holders
96
Total 13F shares, excl. options
20,241,451
Shares change
+454,326
Total reported value, excl. options
$176,086,818
Value change
+$3,320,960
Put/Call ratio
0%
Number of buys
39
Number of sells
-29
Price
$8.70

Significant Holders of Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) as of Q1 2022

108 filings reported holding SPRO - Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share as of Q1 2022.
Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) has 96 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 20,241,451 shares of 55,705,828 outstanding shares and own 36% of the company stock.
Largest 10 shareholders include Aquilo Capital Management, LLC (5,281,504 shares), BlackRock Inc. (1,794,081 shares), BVF INC/IL (1,585,615 shares), Atlas Venture Associates IX, LLC (1,376,968 shares), VANGUARD GROUP INC (1,373,928 shares), Atlas Venture Life Science Advisors, LLC (1,031,160 shares), Rock Springs Capital Management LP (990,913 shares), Alphabet Inc. (889,979 shares), AMERIPRISE FINANCIAL INC (586,642 shares), and Artal Group S.A. (500,000 shares).
This table shows the top 96 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.
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.