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 — 2021

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2021-12-31$49.79$49.79246,700
2021-12-30$48.94$48.94140,600
2021-12-29$49.52$49.52182,600
2021-12-28$50.90$50.90252,000
2021-12-27$53.15$53.15167,200
2021-12-23$50.79$50.79120,400
2021-12-22$52.59$52.59156,400
2021-12-21$51.76$51.76212,300
2021-12-20$47.89$47.89342,900
2021-12-17$47.92$47.92605,800
2021-12-16$48.18$48.18279,900
2021-12-15$54.08$54.08305,000
2021-12-14$52.88$52.88240,400
2021-12-13$52.57$52.57347,800
2021-12-10$55.80$55.80196,000
2021-12-09$55.78$55.78180,000
2021-12-08$57.23$57.23166,700
2021-12-07$54.62$54.62165,800
2021-12-06$51.33$51.33197,400
2021-12-03$51.45$51.45349,200
2021-12-02$53.15$53.15236,600
2021-12-01$53.36$53.36271,900
2021-11-30$57.16$57.161,135,600
2021-11-29$58.47$58.47253,100
2021-11-26$57.81$57.81241,300
2021-11-24$61.67$61.67212,000
2021-11-23$61.71$61.71248,900
2021-11-22$62.49$62.49322,700
2021-11-19$62.17$62.17217,700
2021-11-18$63.66$63.66317,200
2021-11-17$61.92$61.92317,400
2021-11-16$61.69$61.69344,600
2021-11-15$60.48$60.48376,500
2021-11-12$59.27$59.27261,700
2021-11-11$56.79$56.79146,600
2021-11-10$55.81$55.81190,600
2021-11-09$58.12$58.12215,500
2021-11-08$58.54$58.54241,600
2021-11-05$55.62$55.62338,600
2021-11-04$52.46$52.46175,400
2021-11-03$51.90$51.90134,000
2021-11-02$52.60$52.60164,400
2021-11-01$53.16$53.16233,100
2021-10-29$54.46$54.46633,500
2021-10-28$46.22$46.22171,400
2021-10-27$46.81$46.81103,500
2021-10-26$46.84$46.84123,100
2021-10-25$46.74$46.74123,800
2021-10-22$44.44$44.44114,300
2021-10-21$43.83$43.83208,600
2021-10-20$47.18$47.1895,200
2021-10-19$47.95$47.95139,400
2021-10-18$49.40$49.40108,000
2021-10-15$49.50$49.50133,700
2021-10-14$49.50$49.5099,500
2021-10-13$49.67$49.67102,700
2021-10-12$49.17$49.1763,100
2021-10-11$48.21$48.21148,400
2021-10-08$47.68$47.68101,100
2021-10-07$48.28$48.28118,700
2021-10-06$47.01$47.01157,000
2021-10-05$48.23$48.23379,100
2021-10-04$46.81$46.81224,600
2021-10-01$47.43$47.43226,800
2021-09-30$46.01$46.01272,800
2021-09-29$44.76$44.76109,300
2021-09-28$44.91$44.91178,000
2021-09-27$46.59$46.59166,100
2021-09-24$45.79$45.79141,800
2021-09-23$44.95$44.95132,300
2021-09-22$44.24$44.24109,300
2021-09-21$43.23$43.23128,400
2021-09-20$41.71$41.71193,400
2021-09-17$44.37$44.37424,600
2021-09-16$44.22$44.22157,200
2021-09-15$45.41$45.41195,700
2021-09-14$44.42$44.42285,700
2021-09-13$44.74$44.74240,900
2021-09-10$42.72$42.72502,000
2021-09-09$41.99$41.99123,900
2021-09-08$41.73$41.73192,500
2021-09-07$42.00$42.00196,500
2021-09-03$44.21$44.21139,400
2021-09-02$46.19$46.19212,900
2021-09-01$44.21$44.21210,800
2021-08-31$43.75$43.75573,600
2021-08-30$43.82$43.82147,000
2021-08-27$44.14$44.14176,200
2021-08-26$43.15$43.15237,400
2021-08-25$43.10$43.10261,000
2021-08-24$42.17$42.17143,000
2021-08-23$41.35$41.35278,800
2021-08-20$39.87$39.87309,800
2021-08-19$40.94$40.94405,500
2021-08-18$38.70$38.70492,300
2021-08-17$36.94$36.94229,300
2021-08-16$34.11$34.11105,400
2021-08-13$35.18$35.1890,100
2021-08-12$36.36$36.36177,000
2021-08-11$36.96$36.96104,300
2021-08-10$37.00$37.00168,100
2021-08-09$36.47$36.47202,200
2021-08-06$36.60$36.60122,400
2021-08-05$37.36$37.36110,100
2021-08-04$36.80$36.80148,800
2021-08-03$37.82$37.82305,400
2021-08-02$36.85$36.85311,800
2021-07-30$37.65$37.65481,700
2021-07-29$38.54$38.54422,300
2021-07-28$39.38$39.38202,600
2021-07-27$37.92$37.92173,500
2021-07-26$38.47$38.47312,100
2021-07-23$36.94$36.94147,900
2021-07-22$37.01$37.01290,400
2021-07-21$36.59$36.59242,200
2021-07-20$34.34$34.34390,800
2021-07-19$30.91$30.91388,400
2021-07-16$33.00$33.00163,300
2021-07-15$34.24$34.24231,400
2021-07-14$34.38$34.38199,400
2021-07-13$34.50$34.50222,900
2021-07-12$36.20$36.20304,000
2021-07-09$35.55$35.55201,200
2021-07-08$34.76$34.76147,300
2021-07-07$35.24$35.24286,200
2021-07-06$34.11$34.11235,700
2021-07-02$34.82$34.82538,800
2021-07-01$34.66$34.661,100,800
2021-06-30$29.92$29.92978,400
2021-06-29$24.07$24.0796,500
2021-06-28$23.80$23.80114,200
2021-06-25$24.65$24.65928,200
2021-06-24$25.06$25.06158,300
2021-06-23$24.69$24.69141,600
2021-06-22$24.35$24.35184,400
2021-06-21$24.12$24.12136,300
2021-06-18$23.82$23.82548,400
2021-06-17$23.98$23.98220,500
2021-06-16$24.19$24.19319,400
2021-06-15$23.22$23.22204,000
2021-06-14$22.51$22.51143,800
2021-06-11$21.61$21.61112,800
2021-06-10$21.52$21.52124,400
2021-06-09$22.07$22.07137,200
2021-06-08$22.69$22.69548,500
2021-06-07$22.83$22.83300,400
2021-06-04$21.84$21.84237,700
2021-06-03$20.89$20.89134,700
2021-06-02$20.64$20.64151,400
2021-06-01$20.49$20.49152,200
2021-05-28$20.28$20.28115,500
2021-05-27$20.01$20.01114,700
2021-05-26$19.42$19.4285,900
2021-05-25$19.12$19.12146,400
2021-05-24$19.70$19.70249,900
2021-05-21$20.41$20.41374,800
2021-05-20$18.68$18.68161,800
2021-05-19$17.96$17.96201,200
2021-05-18$18.25$18.25131,400
2021-05-17$18.67$18.67155,300
2021-05-14$18.08$18.08111,000
2021-05-13$17.67$17.67191,100
2021-05-12$17.60$17.60156,500
2021-05-11$18.25$18.25146,500
2021-05-10$17.66$17.66300,100
2021-05-07$19.26$19.26136,000
2021-05-06$18.52$18.52274,200
2021-05-05$19.52$19.52922,800
2021-05-04$17.83$17.83248,500
2021-05-03$17.47$17.47314,100
2021-04-30$18.23$18.23527,800
2021-04-29$20.16$20.16163,500
2021-04-28$20.66$20.66143,600
2021-04-27$19.78$19.78159,700
2021-04-26$19.66$19.66170,600
2021-04-23$18.59$18.59140,700
2021-04-22$18.11$18.11335,700
2021-04-21$17.42$17.4294,700
2021-04-20$16.92$16.92325,300
2021-04-19$17.72$17.72108,200
2021-04-16$18.37$18.37168,600
2021-04-15$18.00$18.00213,700
2021-04-14$18.99$18.99113,700
2021-04-13$18.71$18.71363,500
2021-04-12$18.30$18.30258,700
2021-04-09$18.78$18.78147,400
2021-04-08$19.63$19.6387,600
2021-04-07$19.54$19.54127,600
2021-04-06$19.75$19.75108,800
2021-04-05$20.14$20.14218,800
2021-04-01$20.79$20.79224,200
2021-03-31$20.34$20.34226,400
2021-03-30$19.49$19.49164,600
2021-03-29$18.42$18.42169,000
2021-03-26$19.61$19.61152,800
2021-03-25$19.03$19.03228,600
2021-03-24$18.82$18.82250,500
2021-03-23$19.84$19.84218,900
2021-03-22$20.08$20.08182,500
2021-03-19$20.11$20.11610,200
2021-03-18$19.75$19.75377,200
2021-03-17$20.72$20.72366,300
2021-03-16$20.91$20.91555,900
2021-03-15$21.38$21.38171,100
2021-03-12$22.30$22.30116,900
2021-03-11$22.80$22.80161,900
2021-03-10$22.10$22.10142,500
2021-03-09$21.54$21.54161,200
2021-03-08$21.71$21.71143,800
2021-03-05$21.53$21.53308,200
2021-03-04$21.85$21.85361,600
2021-03-03$23.05$23.05188,100
2021-03-02$23.62$23.62188,100
2021-03-01$24.22$24.22196,000
2021-02-26$22.25$22.25307,700
2021-02-25$22.45$22.45176,400
2021-02-24$24.13$24.13277,800
2021-02-23$23.80$23.80371,300
2021-02-22$22.84$22.84314,600
2021-02-19$23.77$23.771,234,900
2021-02-18$24.31$24.31873,000
2021-02-17$24.04$24.04275,200
2021-02-16$24.38$24.38367,000
2021-02-12$24.74$24.74299,600
2021-02-11$24.65$24.65822,900
2021-02-10$26.00$26.00296,900
2021-02-09$25.28$25.28214,300
2021-02-08$25.70$25.70439,700
2021-02-05$23.62$23.62258,000
2021-02-04$22.49$22.49293,100
2021-02-03$20.70$20.7089,100
2021-02-02$21.02$21.02136,500
2021-02-01$21.03$21.03159,100
2021-01-29$20.06$20.06252,900
2021-01-28$20.91$20.91227,400
2021-01-27$20.77$20.77362,000
2021-01-26$19.94$19.94236,500
2021-01-25$18.17$18.17184,900
2021-01-22$18.88$18.8884,700
2021-01-21$18.78$18.7893,300
2021-01-20$18.99$18.99152,200
2021-01-19$18.75$18.75436,000
2021-01-15$20.30$20.30181,200
2021-01-14$19.97$19.97242,400
2021-01-13$18.55$18.55258,600
2021-01-12$18.34$18.34101,200
2021-01-11$17.63$17.63107,400
2021-01-08$17.92$17.92110,700
2021-01-07$18.51$18.51131,900
2021-01-06$17.62$17.62359,300
2021-01-05$16.39$16.39147,000
2021-01-04$15.79$15.79135,000