Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO)

CUSIP: 84833T103

Q4 2020 13F Holders as of 31 Dec 2020

Type / Class
Equity / Common Stock, par value $0.001 per share
Shares outstanding
55,705,828
Total 13F shares
19,088,635
Share change
+940,458
Total reported value
$370,127,115
Put/Call ratio
145%
Price per share
$19.39
Number of holders
87
Value change
+$23,864,503
Number of buys
53
Number of sells
36

Quarterly Holders Quick Answers

What is CUSIP 84833T103?
CUSIP 84833T103 identifies SPRO - Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share in SEC institutional holdings data.

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Institutional Holders of Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) as of Q4 2020

As of 31 Dec 2020, Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) was held by 87 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 19,088,635 shares. The largest 10 holders included Aquilo Capital Management, LLC, BVF INC/IL, BlackRock Inc., Atlas Venture Associates IX, LLC, Atlas Venture Associates IX, LLC, Rock Springs Capital Management LP, VANGUARD GROUP INC, Alphabet Inc., Novo Holdings A/S, and Artal Group S.A.. This page lists 87 institutional shareholders reporting positions in this security for the Q4 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.