Updated October 7, 2019

Arena Pharmaceuticals Inc.

Arena Pharmaceuticals Inc. (“Arena”) develops drugs that selectively target protein receptors of cells. Its research and development efforts are premised under the hypothesis that drugs designed to selectively target these receptors provide more effective and safe treatments.

Latest Trading

$43.93
0.48%
(+0.21)
Open 44.17
Previous Close 43.72
Today's Range
43.25 44.32
52 Week Range
42.48 64.48
Volume 580.40K
Equity Market Value $2.58B
Dividend Yield 0.00
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ARNA Options Prices

Calls (Expiration: 01/31/2020)
Contract Name Strike Last Bid Ask Change %Chg Volume Open Int
ARNA200131C00030000 30.00 0.00 11.50 16.20 unch unch 0 0
ARNA200131C00035000 35.00 0.00 6.65 11.10 unch unch 0 0
ARNA200131C00036000 36.00 0.00 6.55 9.15 unch unch 0 0
ARNA200131C00037000 37.00 0.00 5.95 7.70 unch unch 0 0
ARNA200131C00038000 38.00 0.00 5.45 7.50 unch unch 0 0
ARNA200131C00039000 39.00 0.00 2.55 5.95 unch unch 0 0
ARNA200131C00039500 39.50 0.00 2.99 5.25 unch unch 0 0
ARNA200131C00040000 40.00 0.00 3.30 4.80 unch unch 0 30
ARNA200131C00040500 40.50 0.00 2.94 4.15 unch unch 0 0
ARNA200131C00041000 41.00 0.00 2.20 3.70 unch unch 0 0
ARNA200131C00041500 41.50 0.00 1.86 3.25 unch unch 0 0
ARNA200131C00042000 42.00 1.84 1.61 2.74 1.84 unch 1 0
ARNA200131C00042500 42.50 0.00 1.56 2.36 unch unch 0 0
ARNA200131C00043000 43.00 0.00 1.16 1.74 unch unch 0 0
ARNA200131C00043500 43.50 0.00 0.82 1.50 unch unch 0 0
ARNA200131C00044000 44.00 0.00 0.56 1.28 unch unch 0 0
ARNA200131C00044500 44.50 0.45 0.37 0.88 0.45 unch 396 400
ARNA200131C00045000 45.00 0.00 0.25 0.50 unch unch 0 13
ARNA200131C00045500 45.50 0.00 0.14 0.25 unch unch 0 13
ARNA200131C00046000 46.00 1.20 0.10 1.48 -0.60 -33.33% 1 37
ARNA200131C00046500 46.50 0.00 0.00 0.48 unch unch 0 0
ARNA200131C00047000 47.00 0.10 0.00 0.14 -0.65 -86.67% 5 22
ARNA200131C00047500 47.50 1.75 0.00 2.18 -0.75 -30.00% 5 5
ARNA200131C00048000 48.00 0.52 0.00 0.26 0.52 unch 5 9
ARNA200131C00048500 48.50 0.00 0.00 0.45 unch unch 0 0
ARNA200131C00049000 49.00 0.00 0.00 0.73 unch unch 0 5
ARNA200131C00049500 49.50 0.00 0.00 0.93 unch unch 0 0
ARNA200131C00050000 50.00 0.01 0.00 0.06 -1.48 -99.33% 5 1
ARNA200131C00050500 50.50 0.00 0.00 0.91 unch unch 0 0
ARNA200131C00051000 51.00 0.00 0.00 0.48 unch unch 0 0
ARNA200131C00051500 51.50 0.00 0.00 0.93 unch unch 0 0
ARNA200131C00052000 52.00 0.25 0.00 0.48 0.25 unch 10 15
ARNA200131C00052500 52.50 0.00 0.00 0.91 unch unch 0 0
ARNA200131C00053000 53.00 0.00 0.00 0.91 unch unch 0 0
ARNA200131C00053500 53.50 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00054000 54.00 0.00 0.00 0.48 unch unch 0 0
ARNA200131C00054500 54.50 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00055000 55.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00056000 56.00 0.00 0.00 0.91 unch unch 0 0
ARNA200131C00057000 57.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00058000 58.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00059000 59.00 0.00 0.00 0.90 unch unch 0 0
ARNA200131C00060000 60.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00061000 61.00 0.00 0.00 0.90 unch unch 0 0
ARNA200131C00062000 62.00 0.00 0.00 0.90 unch unch 0 0
ARNA200131C00063000 63.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00064000 64.00 0.00 0.00 0.90 unch unch 0 0
ARNA200131C00065000 65.00 0.00 0.00 0.89 unch unch 0 0
ARNA200131C00066000 66.00 0.00 0.00 0.90 unch unch 0 0
ARNA200131C00067000 67.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00068000 68.00 0.00 0.00 0.90 unch unch 0 0
ARNA200131C00069000 69.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00070000 70.00 0.00 0.00 0.50 unch unch 0 0
Puts (Expiration: 01/31/2020)
Symbol Strike Last Bid Ask Change %Chg Volume Open Int
ARNA200131C00030000 30.00 0.00 11.50 16.20 unch unch 0 0
ARNA200131C00035000 35.00 0.00 6.65 11.10 unch unch 0 0
ARNA200131C00036000 36.00 0.00 6.55 9.15 unch unch 0 0
ARNA200131C00037000 37.00 0.00 5.95 7.70 unch unch 0 0
ARNA200131C00038000 38.00 0.00 5.45 7.50 unch unch 0 0
ARNA200131C00039000 39.00 0.00 2.55 5.95 unch unch 0 0
ARNA200131C00039500 39.50 0.00 2.99 5.25 unch unch 0 0
ARNA200131C00040000 40.00 0.00 3.30 4.80 unch unch 0 30
ARNA200131C00040500 40.50 0.00 2.94 4.15 unch unch 0 0
ARNA200131C00041000 41.00 0.00 2.20 3.70 unch unch 0 0
ARNA200131C00041500 41.50 0.00 1.86 3.25 unch unch 0 0
ARNA200131C00042000 42.00 1.84 1.61 2.74 1.84 unch 1 0
ARNA200131C00042500 42.50 0.00 1.56 2.36 unch unch 0 0
ARNA200131C00043000 43.00 0.00 1.16 1.74 unch unch 0 0
ARNA200131C00043500 43.50 0.00 0.82 1.50 unch unch 0 0
ARNA200131C00044000 44.00 0.00 0.56 1.28 unch unch 0 0
ARNA200131C00044500 44.50 0.45 0.37 0.88 0.45 unch 396 400
ARNA200131C00045000 45.00 0.00 0.25 0.50 unch unch 0 13
ARNA200131C00045500 45.50 0.00 0.14 0.25 unch unch 0 13
ARNA200131C00046000 46.00 1.20 0.10 1.48 -0.60 -33.33% 1 37
ARNA200131C00046500 46.50 0.00 0.00 0.48 unch unch 0 0
ARNA200131C00047000 47.00 0.10 0.00 0.14 -0.65 -86.67% 5 22
ARNA200131C00047500 47.50 1.75 0.00 2.18 -0.75 -30.00% 5 5
ARNA200131C00048000 48.00 0.52 0.00 0.26 0.52 unch 5 9
ARNA200131C00048500 48.50 0.00 0.00 0.45 unch unch 0 0
ARNA200131C00049000 49.00 0.00 0.00 0.73 unch unch 0 5
ARNA200131C00049500 49.50 0.00 0.00 0.93 unch unch 0 0
ARNA200131C00050000 50.00 0.01 0.00 0.06 -1.48 -99.33% 5 1
ARNA200131C00050500 50.50 0.00 0.00 0.91 unch unch 0 0
ARNA200131C00051000 51.00 0.00 0.00 0.48 unch unch 0 0
ARNA200131C00051500 51.50 0.00 0.00 0.93 unch unch 0 0
ARNA200131C00052000 52.00 0.25 0.00 0.48 0.25 unch 10 15
ARNA200131C00052500 52.50 0.00 0.00 0.91 unch unch 0 0
ARNA200131C00053000 53.00 0.00 0.00 0.91 unch unch 0 0
ARNA200131C00053500 53.50 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00054000 54.00 0.00 0.00 0.48 unch unch 0 0
ARNA200131C00054500 54.50 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00055000 55.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00056000 56.00 0.00 0.00 0.91 unch unch 0 0
ARNA200131C00057000 57.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00058000 58.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00059000 59.00 0.00 0.00 0.90 unch unch 0 0
ARNA200131C00060000 60.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00061000 61.00 0.00 0.00 0.90 unch unch 0 0
ARNA200131C00062000 62.00 0.00 0.00 0.90 unch unch 0 0
ARNA200131C00063000 63.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00064000 64.00 0.00 0.00 0.90 unch unch 0 0
ARNA200131C00065000 65.00 0.00 0.00 0.89 unch unch 0 0
ARNA200131C00066000 66.00 0.00 0.00 0.90 unch unch 0 0
ARNA200131C00067000 67.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00068000 68.00 0.00 0.00 0.90 unch unch 0 0
ARNA200131C00069000 69.00 0.00 0.00 0.50 unch unch 0 0
ARNA200131C00070000 70.00 0.00 0.00 0.50 unch unch 0 0
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