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Arena Pharmaceuticals is a biopharmaceutical company focused on delivering medicines with pharmacology and pharmacokinetics. Co.'s clinical programs include: Etrasimod, which Co. is evaluating in a Phase 3 program for ulcerative colitis, a Phase 2b/3 program for Crohn's disease, a Phase 2 program in alopecia areata, and a Phase 2b program for eosinophilic esophagitis; APD418, which is for acute heart failure; Temanogrel, which is in a Phase 2 trial for microvascular obstruction, and a Phase 2 trial for Raynaud's phenomenon secondary to systemic sclerosis; and Olorinab, which Co. is evaluating for a range of visceral pain conditions associated with gastrointestinal diseases. According to our ARNA split history records, ARNA has had 1 split.
ARNA split history picture
ARNA (ARNA) has 1 split in our ARNA split history database. The split for ARNA took place on June 19, 2017. This was a 1 for 10 reverse split, meaning for each 10 shares of ARNA owned pre-split, the shareholder now owned 1 share. For example, a 1000 share position pre-split, became a 100 share position following the split.

When a company such as ARNA 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 ARNA split history from start to finish, an original position size of 1000 shares would have turned into 100 today. Below, we examine the compound annual growth rate — CAGR for short — of an investment into ARNA shares, starting with a $10,000 purchase of ARNA, presented on a split-history-adjusted basis factoring in the complete ARNA split history. ARNA split adjusted history picture

Growth of $10,000.00
Without Dividends Reinvested

Start date: 05/20/2014
End date: 03/11/2022
Start price/share: $63.30
End price/share: $99.99
Dividends collected/share: $0.00
Total return: 57.96%
Average Annual Total Return: 6.03%
Starting investment: $10,000.00
Ending investment: $15,801.29
Years: 7.81
Date Ratio
06/19/20171 for 10
ARNA is categorized under the Healthcare sector; below are some other companies in the same sector that also have a history of stock splits:

ARTC Split History
ARWR Split History
ASMB Split History
ASNS Split History
ASTM Split History
ASTX Split History
ATEC Split History
ATHX Split History
ATNM Split History
ATNX Split History

Also explore: ARNA shares outstanding history

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