NYSE:ASPN | Historical Stock Price | ASPEN AEROGELS 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
2014-06-13 to 2026-09-04
Data captured

Stock Price Chart

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

$1.86$3.79$7.71$15.70$31.95$65.022014-06-132026-08-27

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

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Historical Stock Price — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$16.69$16.69116,000——
2020-12-30$16.60$16.6089,200——
2020-12-29$16.45$16.45108,400——
2020-12-28$16.50$16.50141,500——
2020-12-24$17.71$17.7165,000——
2020-12-23$17.07$17.07106,200——
2020-12-22$17.65$17.65328,400——
2020-12-21$16.16$16.16140,700——
2020-12-18$16.03$16.03845,100——
2020-12-17$17.28$17.28327,600——
2020-12-16$16.26$16.26228,400——
2020-12-15$16.05$16.05238,700——
2020-12-14$15.83$15.83233,700——
2020-12-11$14.74$14.7490,600——
2020-12-10$14.44$14.44124,000——
2020-12-09$15.17$15.17252,200——
2020-12-08$16.08$16.08509,000——
2020-12-07$14.23$14.23107,200——
2020-12-04$14.43$14.4387,800——
2020-12-03$14.44$14.4478,300——
2020-12-02$14.39$14.39117,800——
2020-12-01$14.50$14.50188,200——
2020-11-30$14.12$14.12267,000——
2020-11-27$14.92$14.92185,100——
2020-11-25$14.86$14.86610,600——
2020-11-24$13.15$13.15573,000——
2020-11-23$12.00$12.00263,600——
2020-11-20$11.67$11.67137,300——
2020-11-19$11.79$11.79119,500——
2020-11-18$11.70$11.70374,800——
2020-11-17$11.40$11.4097,600——
2020-11-16$11.39$11.39139,100——
2020-11-13$11.16$11.16165,200——
2020-11-12$11.45$11.4590,400——
2020-11-11$11.70$11.7064,400——
2020-11-10$11.74$11.74119,400——
2020-11-09$11.26$11.26129,400——
2020-11-06$11.20$11.2056,400——
2020-11-05$10.97$10.97110,800——
2020-11-04$11.24$11.2475,900——
2020-11-03$11.47$11.47202,800——
2020-11-02$11.31$11.31299,000——
2020-10-30$11.30$11.30444,400——
2020-10-29$11.27$11.27156,000——
2020-10-28$10.58$10.58129,600——
2020-10-27$11.75$11.7556,500——
2020-10-26$11.98$11.9881,700——
2020-10-23$12.64$12.6446,900——
2020-10-22$12.45$12.45161,900——
2020-10-21$11.72$11.7294,400——
2020-10-20$12.17$12.1779,800——
2020-10-19$11.75$11.75116,400——
2020-10-16$11.90$11.90170,700——
2020-10-15$12.34$12.34271,300——
2020-10-14$11.02$11.0290,200——
2020-10-13$10.54$10.5457,800——
2020-10-12$10.53$10.53123,700——
2020-10-09$11.21$11.21112,000——
2020-10-08$11.05$11.0586,100——
2020-10-07$11.17$11.17119,700——
2020-10-06$10.84$10.84149,300——
2020-10-05$11.41$11.41238,500——
2020-10-02$11.03$11.03344,200——
2020-10-01$11.57$11.573,738,900——
2020-09-30$10.95$10.95191,700——
2020-09-29$10.99$10.99102,000——
2020-09-28$10.73$10.73110,100——
2020-09-25$10.40$10.40122,500——
2020-09-24$9.75$9.75143,800——
2020-09-23$9.53$9.53148,100——
2020-09-22$10.41$10.41166,000——
2020-09-21$10.34$10.34282,800——
2020-09-18$10.76$10.76375,700——
2020-09-17$10.99$10.99163,600——
2020-09-16$11.04$11.04283,600——
2020-09-15$9.86$9.86140,000——
2020-09-14$9.88$9.88211,500——
2020-09-11$9.14$9.14109,200——
2020-09-10$9.08$9.08121,800——
2020-09-09$8.94$8.94171,800——
2020-09-08$8.47$8.4775,800——
2020-09-04$8.23$8.2347,600——
2020-09-03$8.65$8.65115,700——
2020-09-02$8.65$8.6554,900——
2020-09-01$8.54$8.5434,500——
2020-08-31$8.50$8.50195,700——
2020-08-28$8.92$8.9278,700——
2020-08-27$8.60$8.6062,800——
2020-08-26$8.53$8.5346,000——
2020-08-25$8.57$8.5778,200——
2020-08-24$8.39$8.3991,800——
2020-08-21$8.43$8.43108,000——
2020-08-20$8.62$8.6279,400——
2020-08-19$8.50$8.50112,800——
2020-08-18$8.50$8.50142,800——
2020-08-17$8.85$8.85420,300——
2020-08-14$7.82$7.82192,300——
2020-08-13$7.26$7.2650,900——
2020-08-12$7.49$7.49172,700——
2020-08-11$7.37$7.3787,900——
2020-08-10$7.12$7.12141,000——
2020-08-07$6.47$6.47111,500——
2020-08-06$6.33$6.3355,500——
2020-08-05$6.16$6.16196,900——
2020-08-04$6.05$6.05563,700——
2020-08-03$6.34$6.3472,500——
2020-07-31$6.35$6.35217,800——
2020-07-30$6.62$6.62153,300——
2020-07-29$6.29$6.29107,800——
2020-07-28$6.12$6.1263,800——
2020-07-27$6.15$6.1552,300——
2020-07-24$6.21$6.2157,500——
2020-07-23$6.33$6.3339,700——
2020-07-22$6.53$6.5343,400——
2020-07-21$6.52$6.52115,600——
2020-07-20$6.32$6.3255,100——
2020-07-17$6.51$6.51166,800——
2020-07-16$6.27$6.27119,200——
2020-07-15$6.21$6.21162,900——
2020-07-14$5.95$5.95138,200——
2020-07-13$5.93$5.9366,000——
2020-07-10$6.04$6.0465,300——
2020-07-09$6.04$6.04119,100——
2020-07-08$6.09$6.09127,300——
2020-07-07$6.25$6.25105,400——
2020-07-06$6.59$6.59139,000——
2020-07-02$6.34$6.34108,200——
2020-07-01$6.42$6.4296,500——
2020-06-30$6.58$6.58119,000——
2020-06-29$6.55$6.5597,300——
2020-06-26$6.48$6.482,305,200——
2020-06-25$7.11$7.11190,300——
2020-06-24$7.41$7.41191,100——
2020-06-23$6.89$6.89148,300——
2020-06-22$7.02$7.0290,300——
2020-06-19$6.67$6.67107,600——
2020-06-18$6.79$6.7987,700——
2020-06-17$7.07$7.0765,000——
2020-06-16$7.36$7.3698,300——
2020-06-15$7.27$7.27150,000——
2020-06-12$6.81$6.81161,000——
2020-06-11$6.71$6.71101,200——
2020-06-10$7.46$7.46128,300——
2020-06-09$7.69$7.6995,000——
2020-06-08$7.95$7.95321,800——
2020-06-05$6.99$6.99118,600——
2020-06-04$6.60$6.60125,900——
2020-06-03$6.45$6.45136,600——
2020-06-02$6.37$6.3793,000——
2020-06-01$6.30$6.3086,700——
2020-05-29$6.20$6.20150,900——
2020-05-28$6.38$6.38124,100——
2020-05-27$6.75$6.75116,700——
2020-05-26$6.31$6.31145,200——
2020-05-22$5.86$5.86131,600——
2020-05-21$5.96$5.9691,200——
2020-05-20$6.21$6.2177,800——
2020-05-19$6.46$6.4658,200——
2020-05-18$6.28$6.28115,900——
2020-05-15$5.89$5.89133,900——
2020-05-14$5.92$5.9267,300——
2020-05-13$5.97$5.9778,300——
2020-05-12$6.56$6.5674,600——
2020-05-11$6.59$6.5970,300——
2020-05-08$6.69$6.6981,200——
2020-05-07$5.87$5.8794,900——
2020-05-06$6.36$6.3667,000——
2020-05-05$6.76$6.7672,200——
2020-05-04$6.92$6.92123,900——
2020-05-01$6.07$6.07121,600——
2020-04-30$5.60$5.6068,200——
2020-04-29$5.74$5.74109,700——
2020-04-28$5.59$5.5972,300——
2020-04-27$5.60$5.60200,400——
2020-04-24$5.58$5.58235,900——
2020-04-23$5.89$5.89127,000——
2020-04-22$5.90$5.9075,400——
2020-04-21$5.28$5.2887,000——
2020-04-20$6.12$6.1251,900——
2020-04-17$6.50$6.5046,600——
2020-04-16$6.16$6.1637,100——
2020-04-15$6.16$6.1634,000——
2020-04-14$6.31$6.3151,300——
2020-04-13$6.30$6.3048,500——
2020-04-09$6.45$6.4552,900——
2020-04-08$6.17$6.1778,400——
2020-04-07$5.80$5.8093,200——
2020-04-06$6.30$6.3067,900——
2020-04-03$6.16$6.1647,500——
2020-04-02$6.29$6.2958,300——
2020-04-01$5.93$5.9346,300——
2020-03-31$6.14$6.1455,800——
2020-03-30$6.25$6.25163,200——
2020-03-27$5.96$5.9680,200——
2020-03-26$5.84$5.84112,100——
2020-03-25$5.59$5.59103,200——
2020-03-24$5.45$5.4556,600——
2020-03-23$5.15$5.1594,700——
2020-03-20$5.21$5.21127,000——
2020-03-19$5.13$5.13156,600——
2020-03-18$5.01$5.01124,100——
2020-03-17$5.42$5.4279,400——
2020-03-16$4.94$4.94196,200——
2020-03-13$6.17$6.17107,800——
2020-03-12$6.00$6.0092,100——
2020-03-11$6.50$6.50166,900——
2020-03-10$7.28$7.28148,500——
2020-03-09$7.13$7.13158,500——
2020-03-06$7.93$7.93125,000——
2020-03-05$7.84$7.8473,400——
2020-03-04$8.54$8.5474,200——
2020-03-03$8.50$8.50138,500——
2020-03-02$8.16$8.16109,600——
2020-02-28$7.95$7.95134,400——
2020-02-27$7.92$7.92174,900——
2020-02-26$8.02$8.02305,600——
2020-02-25$8.24$8.24220,600——
2020-02-24$8.75$8.75336,800——
2020-02-21$9.81$9.81315,600——
2020-02-20$10.62$10.62417,200——
2020-02-19$10.06$10.06403,700——
2020-02-18$9.13$9.13139,500——
2020-02-14$9.70$9.7076,400——
2020-02-13$9.60$9.60327,500——
2020-02-12$10.01$10.0164,600——
2020-02-11$9.37$9.3746,700——
2020-02-10$9.25$9.2569,600——
2020-02-07$9.36$9.3675,100——
2020-02-06$9.38$9.3838,200——
2020-02-05$9.33$9.33111,100——
2020-02-04$9.30$9.30119,800——
2020-02-03$8.85$8.85168,100——
2020-01-31$8.27$8.27118,100——
2020-01-30$8.34$8.3454,600——
2020-01-29$8.63$8.63128,900——
2020-01-28$8.71$8.71338,700——
2020-01-27$9.87$9.8740,200——
2020-01-24$10.10$10.1054,200——
2020-01-23$10.27$10.27124,200——
2020-01-22$10.33$10.33101,300——
2020-01-21$9.97$9.9790,700——
2020-01-17$9.98$9.9874,800——
2020-01-16$9.93$9.9370,300——
2020-01-15$9.74$9.74105,300——
2020-01-14$9.58$9.5858,700——
2020-01-13$9.44$9.44174,800——
2020-01-10$8.72$8.7244,900——
2020-01-09$8.05$8.0518,200——
2020-01-08$7.99$7.9936,100——
2020-01-07$7.67$7.6741,900——
2020-01-06$7.61$7.6128,800——
2020-01-03$7.53$7.5330,600——
2020-01-02$7.70$7.7045,000——