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.

View year

Historical Stock Price — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$25.16$25.16340,700——
2020-12-30$25.08$25.08524,400——
2020-12-29$25.19$25.19451,200——
2020-12-28$25.04$25.04523,000——
2020-12-24$25.66$25.66568,100——
2020-12-23$25.81$25.814,998,400——
2020-12-22$22.52$22.52255,300——
2020-12-21$22.42$22.42505,600——
2020-12-18$21.88$21.881,588,800——
2020-12-17$21.41$21.41600,300——
2020-12-16$21.61$21.61542,400——
2020-12-15$21.72$21.72510,900——
2020-12-14$21.68$21.68601,000——
2020-12-11$21.67$21.67301,800——
2020-12-10$21.88$21.88353,900——
2020-12-09$21.97$21.97308,600——
2020-12-08$21.84$21.84333,300——
2020-12-07$21.50$21.50284,900——
2020-12-04$22.00$22.00240,600——
2020-12-03$21.76$21.76365,100——
2020-12-02$21.67$21.67613,900——
2020-12-01$21.98$21.98477,900——
2020-11-30$21.30$21.30563,900——
2020-11-27$21.87$21.87126,400——
2020-11-25$21.33$21.33303,600——
2020-11-24$21.21$21.21334,200——
2020-11-23$20.68$20.68392,500——
2020-11-20$20.78$20.78446,500——
2020-11-19$21.11$21.11427,800——
2020-11-18$21.46$21.46347,400——
2020-11-17$22.40$22.40467,200——
2020-11-16$22.36$22.36602,500——
2020-11-13$23.01$23.01536,800——
2020-11-12$21.73$21.73554,900——
2020-11-11$21.33$21.33625,500——
2020-11-10$21.08$21.081,995,900——
2020-11-09$24.95$24.95999,800——
2020-11-06$23.58$23.58796,000——
2020-11-05$23.03$23.031,189,900——
2020-11-04$22.47$22.472,022,500——
2020-11-03$18.15$18.15434,000——
2020-11-02$18.37$18.37459,100——
2020-10-30$18.36$18.36401,000——
2020-10-29$18.35$18.35511,400——
2020-10-28$17.70$17.70557,300——
2020-10-27$18.84$18.84373,200——
2020-10-26$19.70$19.70310,800——
2020-10-23$20.09$20.09228,500——
2020-10-22$20.13$20.13271,700——
2020-10-21$19.75$19.75265,600——
2020-10-20$19.99$19.99233,400——
2020-10-19$20.04$20.04283,800——
2020-10-16$20.39$20.39276,700——
2020-10-15$20.35$20.35274,200——
2020-10-14$20.52$20.52366,400——
2020-10-13$20.91$20.91279,000——
2020-10-12$21.13$21.13240,400——
2020-10-09$21.43$21.43279,900——
2020-10-08$21.10$21.10500,900——
2020-10-07$20.88$20.88559,900——
2020-10-06$20.66$20.66428,500——
2020-10-05$21.20$21.20300,400——
2020-10-02$20.86$20.86365,900——
2020-10-01$21.46$21.46500,200——
2020-09-30$20.84$20.84394,700——
2020-09-29$20.86$20.86522,700——
2020-09-28$20.78$20.78345,900——
2020-09-25$20.31$20.31336,700——
2020-09-24$20.20$20.20316,900——
2020-09-23$20.43$20.43429,400——
2020-09-22$21.16$21.16404,200——
2020-09-21$21.50$21.50479,500——
2020-09-18$22.35$22.35839,700——
2020-09-17$22.48$22.48494,900——
2020-09-16$22.48$22.48502,800——
2020-09-15$21.96$21.96295,200——
2020-09-14$21.75$21.75359,000——
2020-09-11$21.29$21.29287,900——
2020-09-10$21.55$21.55503,700——
2020-09-09$21.12$21.12350,800——
2020-09-08$20.84$20.84403,600——
2020-09-04$21.41$21.41359,800——
2020-09-03$21.76$21.76446,900——
2020-09-02$21.65$21.65427,200——
2020-09-01$21.09$21.09729,000——
2020-08-31$21.99$21.99383,800——
2020-08-28$22.13$22.13466,800——
2020-08-27$22.54$22.54331,100——
2020-08-26$22.52$22.52471,900——
2020-08-25$22.22$22.22534,000——
2020-08-24$21.74$21.74501,100——
2020-08-21$21.78$21.78734,700——
2020-08-20$22.58$22.58504,800——
2020-08-19$23.40$23.40857,500——
2020-08-18$25.05$25.05583,700——
2020-08-17$24.90$24.90397,700——
2020-08-14$24.15$24.15504,700——
2020-08-13$23.35$23.35338,700——
2020-08-12$23.31$23.31423,800——
2020-08-11$22.81$22.811,136,100——
2020-08-10$23.03$23.03311,100——
2020-08-07$23.08$23.08506,400——
2020-08-06$23.18$23.18263,600——
2020-08-05$23.25$23.25398,500——
2020-08-04$22.94$22.94437,400——
2020-08-03$23.29$23.29464,100——
2020-07-31$22.27$22.27652,200——
2020-07-30$23.51$23.51382,600——
2020-07-29$23.20$23.20295,000——
2020-07-28$23.21$23.21271,900——
2020-07-27$23.73$23.73157,600——
2020-07-24$23.28$23.28288,700——
2020-07-23$23.75$23.75314,200——
2020-07-22$23.60$23.60391,500——
2020-07-21$23.92$23.92394,500——
2020-07-20$24.22$24.22428,800——
2020-07-17$24.20$24.20342,900——
2020-07-16$24.28$24.28487,300——
2020-07-15$24.94$24.94842,500——
2020-07-14$23.90$23.90347,600——
2020-07-13$23.76$23.76764,300——
2020-07-10$24.25$24.25551,100——
2020-07-09$23.84$23.84568,400——
2020-07-08$23.38$23.38443,900——
2020-07-07$23.06$23.06402,300——
2020-07-06$23.58$23.58371,600——
2020-07-02$23.61$23.61348,500——
2020-07-01$23.97$23.97577,500——
2020-06-30$23.75$23.75470,000——
2020-06-29$23.27$23.27352,800——
2020-06-26$23.24$23.241,276,700——
2020-06-25$23.77$23.77408,100——
2020-06-24$23.28$23.28505,200——
2020-06-23$24.11$24.11419,100——
2020-06-22$23.87$23.87334,600——
2020-06-19$23.71$23.71595,300——
2020-06-18$23.86$23.86284,700——
2020-06-17$23.96$23.96434,700——
2020-06-16$24.56$24.56802,300——
2020-06-15$23.07$23.07270,200——
2020-06-12$22.83$22.83454,200——
2020-06-11$22.30$22.30512,600——
2020-06-10$23.68$23.68350,100——
2020-06-09$24.62$24.62400,200——
2020-06-08$24.89$24.89499,800——
2020-06-05$23.74$23.74559,300——
2020-06-04$23.87$23.87416,400——
2020-06-03$24.09$24.09413,500——
2020-06-02$23.76$23.76489,400——
2020-06-01$23.86$23.86538,900——
2020-05-29$24.12$24.12646,500——
2020-05-28$24.50$24.50641,300——
2020-05-27$24.34$24.34633,900——
2020-05-26$24.82$24.82747,300——
2020-05-22$24.01$24.01559,600——
2020-05-21$24.24$24.24295,700——
2020-05-20$23.84$23.84743,300——
2020-05-19$24.49$24.49641,200——
2020-05-18$23.82$23.82547,900——
2020-05-15$23.40$23.40376,400——
2020-05-14$22.94$22.94493,900——
2020-05-13$23.16$23.16545,200——
2020-05-12$22.95$22.95521,400——
2020-05-11$23.31$23.31599,100——
2020-05-08$23.10$23.10502,700——
2020-05-07$23.33$23.33738,300——
2020-05-06$23.17$23.171,074,900——
2020-05-05$22.17$22.17364,200——
2020-05-04$22.14$22.14652,700——
2020-05-01$23.22$23.22428,000——
2020-04-30$23.40$23.40627,900——
2020-04-29$23.57$23.571,248,700——
2020-04-28$19.49$19.49547,300——
2020-04-27$19.58$19.58227,600——
2020-04-24$18.95$18.95251,800——
2020-04-23$18.85$18.85321,900——
2020-04-22$18.12$18.12309,400——
2020-04-21$18.26$18.26542,600——
2020-04-20$17.65$17.651,543,600——
2020-04-17$19.87$19.87576,800——
2020-04-16$18.70$18.70531,700——
2020-04-15$18.86$18.86547,000——
2020-04-14$19.34$19.34591,000——
2020-04-13$18.71$18.71356,700——
2020-04-09$18.81$18.81491,600——
2020-04-08$18.57$18.57625,200——
2020-04-07$18.03$18.03450,500——
2020-04-06$18.30$18.30479,400——
2020-04-03$17.32$17.32436,400——
2020-04-02$17.09$17.09537,000——
2020-04-01$17.29$17.29774,300——
2020-03-31$17.99$17.99770,600——
2020-03-30$17.16$17.16526,900——
2020-03-27$16.07$16.07382,800——
2020-03-26$16.27$16.27794,800——
2020-03-25$16.64$16.64736,100——
2020-03-24$17.01$17.01722,700——
2020-03-23$16.51$16.51597,800——
2020-03-20$15.73$15.73908,700——
2020-03-19$16.64$16.64800,100——
2020-03-18$14.45$14.45915,000——
2020-03-17$14.61$14.611,310,200——
2020-03-16$15.04$15.04968,200——
2020-03-13$16.36$16.361,235,100——
2020-03-12$16.01$16.01823,300——
2020-03-11$16.15$16.15637,100——
2020-03-10$16.34$16.34521,800——
2020-03-09$15.94$15.94766,700——
2020-03-06$17.39$17.39622,000——
2020-03-05$18.23$18.23621,800——
2020-03-04$19.03$19.03693,500——
2020-03-03$18.23$18.23917,700——
2020-03-02$18.70$18.70947,900——
2020-02-28$17.99$17.991,000,900——
2020-02-27$18.00$18.00992,700——
2020-02-26$19.52$19.522,327,100——
2020-02-25$22.94$22.94821,800——
2020-02-24$23.95$23.951,166,900——
2020-02-21$23.99$23.99768,300——
2020-02-20$23.93$23.93641,600——
2020-02-19$24.36$24.36300,500——
2020-02-18$23.56$23.56340,400——
2020-02-14$24.00$24.00444,200——
2020-02-13$23.94$23.94375,100——
2020-02-12$23.64$23.64654,400——
2020-02-11$23.45$23.45427,700——
2020-02-10$23.82$23.82317,300——
2020-02-07$23.93$23.93283,800——
2020-02-06$23.97$23.97185,700——
2020-02-05$23.87$23.87325,300——
2020-02-04$23.44$23.44311,500——
2020-02-03$23.00$23.00439,200——
2020-01-31$22.87$22.87404,800——
2020-01-30$23.44$23.44310,900——
2020-01-29$23.81$23.81320,000——
2020-01-28$23.79$23.79268,000——
2020-01-27$23.45$23.45331,700——
2020-01-24$23.57$23.57403,300——
2020-01-23$24.21$24.21555,300——
2020-01-22$24.37$24.37424,400——
2020-01-21$24.69$24.69550,700——
2020-01-17$24.44$24.44350,000——
2020-01-16$24.52$24.52622,800——
2020-01-15$24.58$24.58472,800——
2020-01-14$23.79$23.79606,700——
2020-01-13$23.61$23.61584,800——
2020-01-10$24.25$24.25592,700——
2020-01-09$23.65$23.65266,900——
2020-01-08$23.71$23.71330,900——
2020-01-07$23.36$23.36431,000——
2020-01-06$23.67$23.67376,700——
2020-01-03$23.60$23.60506,600——
2020-01-02$23.71$23.71438,900——