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Spero Therapeutics, Inc. (SPRO)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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1.6100+0.0650 (+4.21%)
At close: 04:00PM EDT
1.5700 -0.04 (-2.48%)
After hours: 07:29PM EDT
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
20.16%% of shares held by all insiders
26.19%% of shares held by institutions
32.81%% of float held by institutions
59Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
Anson Funds Management LP4,297,69930 Dec 20237.97%6,919,295
Vanguard Group Inc1,643,75730 Dec 20233.05%2,646,448
Adar1 Capital Management, LLC 1,067,71130 Dec 20231.98%1,719,014
Atlas Venture Life Science Advisors, LLC 1,013,43830 Dec 20231.88%1,631,635
Alphabet Inc.889,97930 Dec 20231.65%1,432,866
Murchinson Ltd.862,70030 Dec 20231.60%1,388,947
Renaissance Technologies, LLC547,46530 Dec 20231.02%881,418
Blackrock Inc.480,59930 Dec 20230.89%773,764
Novo Holdings A/S468,90230 Dec 20230.87%754,932
Geode Capital Management, LLC412,70730 Dec 20230.77%664,458

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Total Stock Market Index Fund958,77530 Dec 20231.78%1,543,627
Vanguard Extended Market Index Fund587,34230 Dec 20231.09%945,620
Fidelity Extended Market Index Fund239,52528 Feb 20240.44%385,635
Bridgeway Funds Inc-Ultra Small Company Market Fund134,80030 Dec 20230.25%217,028
iShares Micro Cap ETF89,91830 Mar 20240.17%144,767
Fidelity Total Market Index Fund67,56328 Feb 20240.13%108,776
Fidelity Series Total Market Index Fund59,96528 Feb 20240.11%96,543
Schwab Capital Trust-Total Stock Market Index Fund28,56530 Jan 20240.05%45,989
Vanguard Institutional Index-Inst Total Stock Market Ind19,68930 Dec 20230.04%31,699
Fidelity NASDAQ Composite Index Fund23,67528 Feb 20240.04%38,116