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Spero Therapeutics, Inc. (SPRO)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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1.4600+0.0300 (+2.10%)
At close: 04:00PM EDT
1.4500 -0.01 (-0.68%)
After hours: 04:16PM EDT
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
20.37%% of shares held by all insiders
26.08%% of shares held by institutions
32.75%% of float held by institutions
58Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
Anson Funds Management LP4,297,69930 Dec 20237.97%6,274,640
Vanguard Group Inc1,643,75730 Dec 20233.05%2,399,885
Adar1 Capital Management, LLC 1,067,71130 Dec 20231.98%1,558,858
Atlas Venture Life Science Advisors, LLC 1,013,43830 Dec 20231.88%1,479,619
Alphabet Inc.889,97930 Dec 20231.65%1,299,369
Murchinson Ltd.862,70030 Dec 20231.60%1,259,542
Renaissance Technologies, LLC547,46530 Dec 20231.02%799,298
Blackrock Inc.480,59930 Dec 20230.89%701,674
Novo Holdings A/S468,90230 Dec 20230.87%684,596
Geode Capital Management, LLC412,70730 Dec 20230.77%602,552

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Total Stock Market Index Fund958,77530 Dec 20231.78%1,399,811
Vanguard Extended Market Index Fund587,34230 Dec 20231.09%857,519
Fidelity Extended Market Index Fund240,68630 Jan 20240.45%351,401
Bridgeway Funds Inc-Ultra Small Company Market Fund134,80030 Dec 20230.25%196,808
iShares Micro Cap ETF96,54428 Feb 20240.18%140,954
Fidelity Total Market Index Fund67,56330 Jan 20240.13%98,641
Fidelity Series Total Market Index Fund59,96530 Jan 20240.11%87,548
Schwab Capital Trust-Total Stock Market Index Fund28,56530 Jan 20240.05%41,704
Vanguard Institutional Index-Inst Total Stock Market Ind19,68930 Dec 20230.04%28,745
Vanguard Balanced Index Fund19,23830 Dec 20230.04%28,087