Type / Class
Equity / Common Stock, par value $0.001 per share
Shares outstanding
55.7M
Number of holders
34
Total 13F shares, excl. options
7.76M
Shares change
+7.75M
Total reported value, excl. options
$91.1M
Value change
+$91M
Number of buys
33
Price
$11.75

Significant Holders of Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) as of Q4 2017

34 filings reported holding SPRO - Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share as of Q4 2017.
Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) has 34 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 7.76M shares of 55.7M outstanding shares and own 13.93% of the company stock.
Largest 10 shareholders include Atlas Venture Associates IX, LLC (1.38M shares), RA CAPITAL MANAGEMENT, LLC (1.23M shares), Alphabet Inc. (1.11M shares), BVF INC/IL (1.03M shares), FMR LLC (800K shares), Rock Springs Capital Management LP (525K shares), VHCP Management II, LLC (486K shares), AWM Investment Company, Inc. (350K shares), Artal Group S.A. (350K shares), and BlackRock Inc. (241K shares).
This table shows the top 34 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.