Type / Class
Equity / Common Stock, par value $0.001 per share
Shares outstanding
55,705,828
Total 13F shares
16,774,007
Share change
+4,994,054
Total reported value
$187,077,092
Put/Call ratio
309%
Price per share
$11.16
Number of holders
77
Value change
+$55,385,284
Number of buys
39
Number of sells
35

Institutional Holders of Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) as of Q3 2020

As of 30 Sep 2020, Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) was held by 77 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 16,774,007 shares. The largest 10 holders included Aquilo Capital Management, LLC, Atlas Venture Associates IX, LLC, BVF INC/IL, Rock Springs Capital Management LP, Alphabet Inc., BlackRock Inc., Novo Holdings A/S, VANGUARD GROUP INC, Artal Group S.A., and AWM Investment Company, Inc.. This page lists 77 institutional shareholders reporting positions in this security for the Q3 2020 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.