NASDAQ:ATOS | Historical Stock Price | ATOSSA THERAPEUTICS, 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
2012-11-08 to 2026-09-04
Data captured

Stock Price Chart

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

$1.79$12.58$88.67$624.73$4,401.82$31,014.902012-11-082026-08-27

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

View year

Historical Stock Price — 2026

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$2.50177
2026-09-03$2.651,440
2026-09-02$2.44482
2026-09-01$2.463,673
2026-08-31$2.54875
2026-08-28$2.56857
2026-08-27$2.64$2.6423,100$2.67209
2026-08-26$2.65$2.6526,300$2.64650
2026-08-25$2.68$2.6849,700$2.622,181
2026-08-24$2.64$2.6457,000$2.45740
2026-08-21$2.54$2.5425,600$2.60197
2026-08-20$2.59$2.5971,000$2.601,124
2026-08-19$2.64$2.6462,200$2.63847
2026-08-18$2.59$2.5958,300$2.78753
2026-08-17$2.79$2.79192,400$2.581,656
2026-08-14$2.60$2.6095,900$2.57857
2026-08-13$2.56$2.5683,100$2.371,150
2026-08-12$2.35$2.3531,300$2.29708
2026-08-11$2.36$2.3656,700$2.362,503
2026-08-10$2.37$2.3768,900$2.341,584
2026-08-07$2.36$2.3678,000$2.423,195
2026-08-06$2.42$2.4230,700$2.381,412
2026-08-05$2.39$2.3936,800$2.311,782
2026-08-04$2.31$2.3155,000$2.261,194
2026-08-03$2.17$2.1724,300$2.141,281
2026-07-31$2.07$2.0779,000$2.141,682
2026-07-30$2.19$2.1932,000$2.271,066
2026-07-29$2.31$2.3140,600$2.375,954
2026-07-28$2.42$2.4245,900$2.413,437
2026-07-27$2.36$2.3636,700$2.37394
2026-07-24$2.30$2.3040,600$2.34884
2026-07-23$2.41$2.4137,200$2.461,648
2026-07-22$2.43$2.4326,300$2.43545
2026-07-21$2.40$2.40106,000$2.445,038
2026-07-20$2.49$2.49117,300$2.495,681
2026-07-17$2.49$2.4947,800
2026-07-16$2.39$2.3968,900
2026-07-15$2.44$2.4497,200
2026-07-14$2.26$2.26157,700
2026-07-13$2.40$2.40177,600
2026-07-10$2.37$2.3765,700
2026-07-09$2.36$2.36144,100
2026-07-08$2.45$2.45128,000
2026-07-07$2.49$2.49426,400
2026-07-06$2.28$2.28228,500
2026-07-02$2.12$2.12116,500
2026-07-01$2.04$2.04144,200
2026-06-30$1.93$1.9373,900
2026-06-29$1.98$1.98181,700
2026-06-26$1.88$1.88377,700
2026-06-25$1.77$1.77143,500
2026-06-24$1.75$1.75304,000
2026-06-23$1.90$1.90534,900
2026-06-22$1.83$1.83469,900
2026-06-18$2.01$2.01193,500
2026-06-17$1.99$1.99696,600
2026-06-16$2.22$2.22310,100
2026-06-15$2.35$2.35477,300
2026-06-12$2.46$2.46644,400
2026-06-11$2.59$2.591,419,900
2026-06-10$4.40$4.4029,900
2026-06-09$4.41$4.4153,900
2026-06-08$4.55$4.5536,000
2026-06-05$4.47$4.4780,900
2026-06-04$4.85$4.8546,800
2026-06-03$4.70$4.7045,100
2026-06-02$4.85$4.8577,700
2026-06-01$5.11$5.1158,500
2026-05-29$5.23$5.2342,900
2026-05-28$5.19$5.1951,700
2026-05-27$5.12$5.1239,800
2026-05-26$4.95$4.9530,300
2026-05-22$4.96$4.9628,200
2026-05-21$4.97$4.9755,000
2026-05-20$4.84$4.8438,800
2026-05-19$4.75$4.7550,600
2026-05-18$4.78$4.7842,700
2026-05-15$4.85$4.8546,200
2026-05-14$5.15$5.1529,900
2026-05-13$5.16$5.1632,000
2026-05-12$5.16$5.1660,000
2026-05-11$5.50$5.5037,700
2026-05-08$5.60$5.6031,400
2026-05-07$5.67$5.6747,800
2026-05-06$5.80$5.8060,200
2026-05-05$5.58$5.58199,100
2026-05-04$5.86$5.8698,400
2026-05-01$5.33$5.3335,700
2026-04-30$5.37$5.3724,700
2026-04-29$5.28$5.2828,900
2026-04-28$5.49$5.4929,600
2026-04-27$5.45$5.4536,800
2026-04-24$5.70$5.7042,700
2026-04-23$5.73$5.7339,400
2026-04-22$5.95$5.9540,200
2026-04-21$5.77$5.7791,400
2026-04-20$6.17$6.17127,700
2026-04-17$5.83$5.8354,700
2026-04-16$5.77$5.7733,900
2026-04-15$5.74$5.74100,100
2026-04-14$5.35$5.3535,500
2026-04-13$5.31$5.3171,400
2026-04-10$4.94$4.9430,100
2026-04-09$4.98$4.9842,900
2026-04-08$4.82$4.8277,000
2026-04-07$4.88$4.8881,500
2026-04-06$5.15$5.1554,700
2026-04-02$5.37$5.3771,500
2026-04-01$5.11$5.1163,300
2026-03-31$5.26$5.2642,700
2026-03-30$4.71$4.7139,200
2026-03-27$4.72$4.7264,900
2026-03-26$4.71$4.71124,100
2026-03-25$5.42$5.42130,300
2026-03-24$5.51$5.5141,200
2026-03-23$5.61$5.6165,600
2026-03-20$5.33$5.33159,500
2026-03-19$5.13$5.1366,000
2026-03-18$5.11$5.1147,200
2026-03-17$5.49$5.4964,500
2026-03-16$4.97$4.9739,000
2026-03-13$5.01$5.01105,700
2026-03-12$5.05$5.05146,900
2026-03-11$4.78$4.7842,700
2026-03-10$4.78$4.78125,400
2026-03-09$4.57$4.57130,000
2026-03-06$4.53$4.5346,200
2026-03-05$4.68$4.6870,700
2026-03-04$4.92$4.92136,400
2026-03-03$4.72$4.72104,100
2026-03-02$4.50$4.5088,100
2026-02-27$4.43$4.4369,300
2026-02-26$4.47$4.4790,800
2026-02-25$4.27$4.2778,600
2026-02-24$4.21$4.2196,300
2026-02-23$3.96$3.96105,400
2026-02-20$4.21$4.2143,900
2026-02-19$4.42$4.4278,800
2026-02-18$4.34$4.3485,600
2026-02-17$4.15$4.1592,700
2026-02-13$4.20$4.2094,400
2026-02-12$3.94$3.94247,200
2026-02-11$4.05$4.05348,100
2026-02-10$4.82$4.82190,400
2026-02-09$4.99$4.99325,200
2026-02-06$5.34$5.34156,100
2026-02-05$5.33$5.33186,700
2026-02-04$5.29$5.29282,900
2026-02-03$5.53$5.53639,800
2026-02-02$5.59$5.59678,200
2026-01-30$8.55$8.55189,393
2026-01-29$9.00$9.00118,360
2026-01-28$9.30$9.30141,433
2026-01-27$10.20$10.20124,893
2026-01-26$10.35$10.35211,373
2026-01-23$9.60$9.6050,140
2026-01-22$9.75$9.7577,700
2026-01-21$9.00$9.0060,967
2026-01-20$9.00$9.00262,987
2026-01-16$9.30$9.30776,060
2026-01-15$8.70$8.70107,020
2026-01-14$9.00$9.00109,600
2026-01-13$9.60$9.6035,907
2026-01-12$9.75$9.7548,440
2026-01-09$9.75$9.7559,553
2026-01-08$9.75$9.7560,260
2026-01-07$10.05$10.0544,540
2026-01-06$9.90$9.90157,127
2026-01-05$9.30$9.3078,020
2026-01-02$9.45$9.45103,153