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Spero Therapeutics, Inc. (SPRO)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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1.4350+0.0200 (+1.41%)
At close: 04:00PM EDT
1.3700 -0.06 (-4.53%)
After hours: 05:08PM EDT
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
20.42%% of shares held by all insiders
25.80%% of shares held by institutions
32.42%% of float held by institutions
58Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
Anson Funds Management LP3,750,45030 Mar 20246.95%5,381,895
Vanguard Group Inc1,653,43230 Mar 20243.06%2,372,674
Adar1 Capital Management, LLC 926,92930 Mar 20241.72%1,330,143
Alphabet Inc.889,97930 Mar 20241.65%1,277,119
Murchinson Ltd.873,91030 Mar 20241.62%1,254,060
Renaissance Technologies, LLC854,46030 Mar 20241.58%1,226,150
Acadian Asset Management. LLC762,59830 Mar 20241.41%1,094,328
Atlas Venture Life Science Advisors, LLC 607,61330 Mar 20241.13%871,924
Blackrock Inc.476,89630 Mar 20240.88%684,345
Geode Capital Management, LLC469,44130 Mar 20240.87%673,647

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Total Stock Market Index Fund1,021,11630 Mar 20241.89%1,465,301
Vanguard Extended Market Index Fund587,34230 Mar 20241.09%842,835
Fidelity Extended Market Index Fund236,70930 May 20240.44%339,677
Bridgeway Funds Inc-Ultra Small Company Market Fund134,80030 Mar 20240.25%193,437
iShares Micro Cap ETF93,88329 Jun 20240.17%134,722
Fidelity Total Market Index Fund67,29530 May 20240.12%96,568
Fidelity Series Total Market Index Fund59,96530 May 20240.11%86,049
Bridgeway Fds Inc-Omni Small Cap Value Fund50,00030 Mar 20240.09%71,749
Schwab Capital Trust-Total Stock Market Index Fund28,56529 Apr 20240.05%40,990
Fidelity NASDAQ Composite Index Fund23,67530 May 20240.04%33,973