NASDAQ:SUPN | Historical Stock Price | SUPERNUS PHARMACEUTICALS, INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2012-05-01 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$4.68$7.83$13.08$21.85$36.51$61.002012-05-012026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$33.22$33.22391,600
2018-12-28$32.36$32.36437,100
2018-12-27$32.57$32.57416,300
2018-12-26$32.37$32.37523,500
2018-12-24$30.84$30.84368,800
2018-12-21$31.00$31.001,064,400
2018-12-20$32.85$32.85793,100
2018-12-19$33.35$33.35589,500
2018-12-18$35.00$35.00871,200
2018-12-17$35.82$35.82763,400
2018-12-14$35.76$35.761,020,500
2018-12-13$35.60$35.60584,600
2018-12-12$37.20$37.20445,300
2018-12-11$36.98$36.98813,100
2018-12-10$37.91$37.91941,600
2018-12-07$36.53$36.531,788,600
2018-12-06$40.54$40.542,278,400
2018-12-04$46.01$46.01862,200
2018-12-03$48.86$48.86647,900
2018-11-30$47.42$47.42954,700
2018-11-29$44.75$44.75341,100
2018-11-28$45.16$45.16533,600
2018-11-27$43.51$43.51355,900
2018-11-26$43.50$43.50319,300
2018-11-23$42.82$42.82226,500
2018-11-21$42.78$42.78299,400
2018-11-20$42.24$42.24228,000
2018-11-19$42.31$42.31230,400
2018-11-16$43.93$43.93558,700
2018-11-15$43.11$43.11511,300
2018-11-14$43.06$43.06429,600
2018-11-13$45.11$45.11399,600
2018-11-12$44.70$44.70345,500
2018-11-09$45.27$45.27418,500
2018-11-08$45.56$45.56541,700
2018-11-07$45.19$45.191,109,000
2018-11-06$41.65$41.651,175,000
2018-11-05$41.70$41.701,671,600
2018-11-02$46.51$46.51786,300
2018-11-01$47.35$47.35530,200
2018-10-31$47.56$47.56501,500
2018-10-30$47.41$47.41409,900
2018-10-29$46.55$46.55377,700
2018-10-26$47.38$47.38263,300
2018-10-25$47.77$47.77367,500
2018-10-24$45.78$45.78503,200
2018-10-23$47.34$47.34516,600
2018-10-22$48.34$48.34341,200
2018-10-19$48.20$48.20405,900
2018-10-18$47.91$47.91361,100
2018-10-17$48.58$48.58509,700
2018-10-16$48.31$48.31576,700
2018-10-15$46.67$46.67434,900
2018-10-12$47.43$47.43423,800
2018-10-11$47.60$47.601,049,400
2018-10-10$46.50$46.50537,800
2018-10-09$47.17$47.17399,400
2018-10-08$46.99$46.99315,900
2018-10-05$48.01$48.01386,700
2018-10-04$47.95$47.95912,000
2018-10-03$49.51$49.51306,900
2018-10-02$48.65$48.65505,800
2018-10-01$49.09$49.09418,600
2018-09-28$50.35$50.35519,000
2018-09-27$49.95$49.95323,300
2018-09-26$49.50$49.50585,500
2018-09-25$49.35$49.35406,000
2018-09-24$49.50$49.50401,100
2018-09-21$48.90$48.901,025,700
2018-09-20$49.90$49.90793,200
2018-09-19$47.90$47.90590,000
2018-09-18$46.90$46.90648,200
2018-09-17$46.00$46.00444,800
2018-09-14$48.05$48.05595,600
2018-09-13$48.85$48.85414,600
2018-09-12$49.15$49.15537,300
2018-09-11$48.80$48.80580,800
2018-09-10$47.85$47.851,256,100
2018-09-07$48.20$48.20879,300
2018-09-06$45.80$45.80836,200
2018-09-05$45.30$45.301,018,300
2018-09-04$43.95$43.95750,000
2018-08-31$44.30$44.30586,900
2018-08-30$43.50$43.50632,200
2018-08-29$45.45$45.45392,700
2018-08-28$44.95$44.95610,100
2018-08-27$44.75$44.75443,700
2018-08-24$44.55$44.55400,100
2018-08-23$44.85$44.85500,700
2018-08-22$44.65$44.65397,300
2018-08-21$44.35$44.35631,100
2018-08-20$44.40$44.40483,100
2018-08-17$44.80$44.801,092,800
2018-08-16$43.50$43.501,011,700
2018-08-15$43.25$43.25791,000
2018-08-14$42.70$42.701,598,000
2018-08-13$43.50$43.501,691,100
2018-08-10$46.15$46.151,497,600
2018-08-09$48.10$48.101,712,400
2018-08-08$48.70$48.702,530,800
2018-08-07$53.35$53.35787,400
2018-08-06$53.00$53.00846,200
2018-08-03$52.75$52.75716,100
2018-08-02$54.30$54.30697,400
2018-08-01$53.30$53.30555,800
2018-07-31$52.95$52.95499,600
2018-07-30$52.95$52.95950,800
2018-07-27$53.45$53.45475,400
2018-07-26$53.35$53.35419,700
2018-07-25$54.55$54.55572,100
2018-07-24$54.40$54.40714,600
2018-07-23$55.35$55.35624,800
2018-07-20$54.88$54.88367,900
2018-07-19$54.25$54.25421,700
2018-07-18$54.70$54.70472,100
2018-07-17$53.55$53.55470,100
2018-07-16$52.70$52.70356,300
2018-07-13$51.70$51.70449,000
2018-07-12$53.65$53.65526,000
2018-07-11$52.95$52.95495,100
2018-07-10$52.70$52.70423,600
2018-07-09$52.10$52.10877,200
2018-07-06$52.40$52.40691,100
2018-07-05$51.20$51.201,232,900
2018-07-03$53.40$53.40832,500
2018-07-02$56.55$56.55942,300
2018-06-29$59.85$59.851,258,700
2018-06-28$58.35$58.35738,200
2018-06-27$58.15$58.15961,300
2018-06-26$57.40$57.40692,600
2018-06-25$56.65$56.65535,000
2018-06-22$57.05$57.051,064,300
2018-06-21$58.35$58.351,863,600
2018-06-20$58.05$58.051,562,900
2018-06-19$55.20$55.20643,700
2018-06-18$54.15$54.15522,600
2018-06-15$54.95$54.95908,100
2018-06-14$53.75$53.75566,700
2018-06-13$54.05$54.05466,700
2018-06-12$54.00$54.00486,000
2018-06-11$54.70$54.70638,700
2018-06-08$54.00$54.00722,100
2018-06-07$54.20$54.20597,700
2018-06-06$54.70$54.70631,700
2018-06-05$55.15$55.15856,000
2018-06-04$58.05$58.05805,100
2018-06-01$57.70$57.70766,200
2018-05-31$56.35$56.35732,900
2018-05-30$57.35$57.35573,400
2018-05-29$56.05$56.05684,500
2018-05-25$57.25$57.25746,700
2018-05-24$55.65$55.65589,200
2018-05-23$54.95$54.95908,600
2018-05-22$54.55$54.55669,800
2018-05-21$55.00$55.001,144,200
2018-05-18$56.10$56.10964,200
2018-05-17$56.50$56.501,135,900
2018-05-16$58.35$58.35731,500
2018-05-15$58.10$58.101,127,900
2018-05-14$57.15$57.151,408,600
2018-05-11$57.05$57.052,699,900
2018-05-10$49.90$49.901,155,100
2018-05-09$47.95$47.951,419,800
2018-05-08$44.65$44.65647,200
2018-05-07$45.10$45.10799,400
2018-05-04$45.85$45.85594,300
2018-05-03$46.15$46.15420,100
2018-05-02$46.85$46.85467,400
2018-05-01$46.95$46.95601,700
2018-04-30$46.90$46.90308,200
2018-04-27$47.70$47.70277,200
2018-04-26$47.60$47.60421,300
2018-04-25$47.35$47.35634,500
2018-04-24$46.75$46.751,206,400
2018-04-23$47.50$47.50682,000
2018-04-20$48.50$48.50603,300
2018-04-19$48.85$48.85814,800
2018-04-18$48.05$48.05961,300
2018-04-17$46.35$46.35617,200
2018-04-16$45.30$45.30683,700
2018-04-13$45.25$45.25400,900
2018-04-12$46.05$46.05443,300
2018-04-11$45.65$45.65404,700
2018-04-10$45.80$45.80771,600
2018-04-09$45.35$45.35517,400
2018-04-06$44.10$44.10523,800
2018-04-05$45.30$45.30579,700
2018-04-04$45.50$45.50420,900
2018-04-03$45.20$45.20830,500
2018-04-02$44.15$44.15503,900
2018-03-29$45.80$45.80486,800
2018-03-28$45.80$45.80730,300
2018-03-27$45.15$45.15549,300
2018-03-26$44.90$44.90483,700
2018-03-23$44.45$44.45654,600
2018-03-22$44.05$44.05437,000
2018-03-21$44.05$44.05341,800
2018-03-20$45.35$45.35808,500
2018-03-19$44.60$44.60460,200
2018-03-16$44.70$44.701,097,400
2018-03-15$43.18$43.181,800,800
2018-03-14$43.15$43.151,780,200
2018-03-13$44.90$44.90636,100
2018-03-12$45.15$45.15976,000
2018-03-09$44.85$44.85778,300
2018-03-08$44.10$44.10465,300
2018-03-07$43.05$43.05612,200
2018-03-06$41.70$41.70537,600
2018-03-05$41.30$41.30513,100
2018-03-02$39.65$39.65366,200
2018-03-01$38.75$38.75783,100
2018-02-28$38.90$38.901,012,600
2018-02-27$38.10$38.10759,600
2018-02-26$38.90$38.90475,900
2018-02-23$39.40$39.40291,100
2018-02-22$38.45$38.45354,100
2018-02-21$38.10$38.10408,800
2018-02-20$37.25$37.25459,900
2018-02-16$38.35$38.35448,400
2018-02-15$39.15$39.15332,500
2018-02-14$39.40$39.40383,900
2018-02-13$38.10$38.10306,300
2018-02-12$38.65$38.65433,100
2018-02-09$37.20$37.20797,000
2018-02-08$37.15$37.151,000,400
2018-02-07$38.10$38.10467,700
2018-02-06$37.30$37.30897,400
2018-02-05$38.40$38.40877,700
2018-02-02$39.15$39.15517,600
2018-02-01$40.70$40.70599,300
2018-01-31$39.05$39.05823,300
2018-01-30$40.25$40.25890,500
2018-01-29$41.05$41.05506,200
2018-01-26$41.45$41.45873,400
2018-01-25$43.00$43.00490,300
2018-01-24$43.15$43.15865,900
2018-01-23$44.70$44.70827,400
2018-01-22$44.25$44.252,073,900
2018-01-19$46.90$46.901,233,700
2018-01-18$43.55$43.55904,600
2018-01-17$46.50$46.501,677,200
2018-01-16$42.75$42.75746,500
2018-01-12$44.15$44.15468,700
2018-01-11$44.75$44.75483,200
2018-01-10$43.65$43.65434,400
2018-01-09$42.70$42.70744,300
2018-01-08$40.95$40.95647,000
2018-01-05$41.50$41.50708,200
2018-01-04$39.75$39.75625,600
2018-01-03$41.70$41.70496,000
2018-01-02$40.45$40.45539,500