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Spero Therapeutics, Inc. (SPRO)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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1.4400-0.0300 (-2.04%)
At close: 04:00PM EDT
1.4200 -0.02 (-1.39%)
After hours: 07:29PM EDT

Major holders

Currency in USD
20.13%% of shares held by all insiders
25.91%% of shares held by institutions
32.44%% of float held by institutions
60Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
Anson Funds Management LP3,750,45030 Mar 20246.95%5,400,648
Vanguard Group Inc1,653,43230 Mar 20243.06%2,380,942
Adar1 Capital Management, LLC 926,92930 Mar 20241.72%1,334,777
Alphabet Inc.889,97930 Mar 20241.65%1,281,569
Murchinson Ltd.873,91030 Mar 20241.62%1,258,430
Renaissance Technologies, LLC854,46030 Mar 20241.58%1,230,422
Acadian Asset Management. LLC762,59830 Mar 20241.41%1,098,141
Atlas Venture Life Science Advisors, LLC 607,61330 Mar 20241.13%874,962
Blackrock Inc.476,89630 Mar 20240.88%686,730
Geode Capital Management, LLC469,44130 Mar 20240.87%675,995

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Total Stock Market Index Fund958,77530 Dec 20231.78%1,380,636
Vanguard Extended Market Index Fund587,34230 Dec 20231.09%845,772
Fidelity Extended Market Index Fund239,52530 Mar 20240.44%344,916
Bridgeway Funds Inc-Ultra Small Company Market Fund134,80030 Dec 20230.25%194,112
iShares Micro Cap ETF89,91830 Mar 20240.17%129,481
Fidelity Total Market Index Fund67,29530 Mar 20240.12%96,904
Fidelity Series Total Market Index Fund59,96530 Mar 20240.11%86,349
Bridgeway Fds Inc-Omni Small Cap Value Fund50,00030 Mar 20240.09%72,000
Schwab Capital Trust-Total Stock Market Index Fund28,56530 Jan 20240.05%41,133
Fidelity NASDAQ Composite Index Fund23,67530 Mar 20240.04%34,092