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Atossa Therapeutics is a clinical-stage biopharmaceutical company seeking to develop medicines in areas of oncology and infectious diseases, with a focus on breast cancer, other breast conditions and COVID-19. Co.'s drug under development for breast cancer and other breast conditions is Endoxifen which is being developed primarily in two settings: one to reduce tumor cell activity in breast cancer patients in the neoadjuvant setting, meaning prior to surgery; and another to reduce dense breast tissue in women. Co.'s two COVID-19 drugs under development are: AT-H201, an inhalation therapy for COVID-19 patients; and AT-301, a nasal spray for COVID-19 patients for at-home use. 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: 03/31/2014
End date: 03/27/2024
Start price/share: $304.20
End price/share: $1.83
Dividends collected/share: $0.00
Total return: -99.40%
Average Annual Total Return: -40.04%
Starting investment: $10,000.00
Ending investment: $60.15
Years: 10.00
Date Ratio
08/26/20161 for 15
04/20/20181 for 12
ATOS is categorized under the Healthcare sector; below are some other companies in the same sector that also have a history of stock splits:

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Also explore: ATOS shares outstanding history

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