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Atossa Therapeutics is a clinical-stage biopharmaceutical company focused on developing proprietary therapeutics and delivery methods for the treatment of breast cancer and other breast conditions. Co.'s primary program is the development of Endoxifen, an active metabolite of tamoxifen which is a U.S. Food and Drug Administration-approved drug, to treat and prevent breast cancer in high risk women. Co.'s primary goal is to develop its proprietary oral Endoxifen to reduce mammographic breast density. Co. is also developing oral Endoxifen to potentially treat breast cancer in the window of opportunity between diagnosis of breast cancer and surgery. According to our ATOS split history records, Atossa Therapeutics has had 2 splits.
ATOS split history picture
Atossa Therapeutics (ATOS) has 2 splits in our ATOS split history database. The first split for ATOS took place on August 26, 2016. This was a 1 for 15 reverse split, meaning for each 15 shares of ATOS owned pre-split, the shareholder now owned 1 share. For example, a 1000 share position pre-split, became a 66.6666666666667 share position following the split. ATOS's second split took place on April 20, 2018. This was a 1 for 12 reverse split, meaning for each 12 shares of ATOS owned pre-split, the shareholder now owned 1 share. For example, a 66.6666666666667 share position pre-split, became a 5.55555555555556 share position following the split.

When a company such as Atossa Therapeutics conducts a reverse share split, it is usually because shares have fallen to a lower per-share pricepoint than the company would like. This can be important because, for example, certain types of mutual funds might have a limit governing which stocks they may buy, based upon per-share price. The $5 and $10 pricepoints tend to be important in this regard. Stock exchanges also tend to look at per-share price, setting a lower limit for listing eligibility. So when a company does a reverse split, it is looking mathematically at the market capitalization before and after the reverse split takes place, and concluding that if the market capitilization remains stable, the reduced share count should result in a higher price per share.

Looking at the ATOS split history from start to finish, an original position size of 1000 shares would have turned into 5.55555555555556 today. Below, we examine the compound annual growth rate — CAGR for short — of an investment into Atossa Therapeutics shares, starting with a $10,000 purchase of ATOS, presented on a split-history-adjusted basis factoring in the complete ATOS split history. ATOS split adjusted history picture

Growth of $10,000.00
Without Dividends Reinvested

Start date: 11/08/2012
End date: 06/23/2021
Start price/share: $864.00
End price/share: $7.15
Dividends collected/share: $0.00
Total return: -99.17%
Average Annual Total Return: -42.64%
Starting investment: $10,000.00
Ending investment: $82.81
Years: 8.62
Date Ratio
08/26/20161 for 15
04/20/20181 for 12
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