Q3 2021 13F Holders as of 30 Sep 2021
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Type / Class
-
Equity / Common Stock, par value $0.001 per share
-
Shares outstanding
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55.7M
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Number of holders
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87
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Total 13F shares, excl. options
-
18.4M
-
Shares change
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+883K
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Total reported value, excl. options
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$338M
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Value change
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+$16.5M
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Put/Call ratio
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0.85
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Number of buys
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26
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Number of sells
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-30
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Price
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$18.41
Significant Holders of Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) as of Q3 2021
97 filings reported holding SPRO - Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share as of Q3 2021.
Spero Therapeutics, Inc. - Common Stock, par value $0.001 per share (SPRO) has 87 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC).
These institutions hold a total of 18.4M shares
of 55.7M outstanding shares and own 32.98% of the company stock.
Largest 10 shareholders include Aquilo Capital Management, LLC (4.56M shares), BVF INC/IL (1.81M shares), BlackRock Inc. (1.8M shares), Atlas Venture Associates IX, LLC (1.38M shares), VANGUARD GROUP INC (1.29M shares), Rock Springs Capital Management LP (942K shares), Alphabet Inc. (890K shares), STATE STREET CORP (803K shares), GRANAHAN INVESTMENT MANAGEMENT INC/MA (556K shares), and Artal Group S.A. (500K shares).
This table shows the top 87 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.