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 — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2019-12-31$23.55$23.554,980
2019-12-30$24.00$24.006,920
2019-12-27$25.05$25.056,127
2019-12-26$24.90$24.905,680
2019-12-24$24.30$24.301,893
2019-12-23$24.45$24.458,007
2019-12-20$23.10$23.109,667
2019-12-19$24.60$24.6026,253
2019-12-18$24.30$24.3022,313
2019-12-17$21.30$21.301,307
2019-12-16$20.85$20.852,447
2019-12-13$21.45$21.452,753
2019-12-12$20.85$20.852,187
2019-12-11$20.85$20.851,627
2019-12-10$21.45$21.457,813
2019-12-09$21.45$21.453,120
2019-12-06$20.55$20.552,920
2019-12-05$20.70$20.702,900
2019-12-04$21.60$21.602,180
2019-12-03$21.60$21.602,233
2019-12-02$21.75$21.753,667
2019-11-29$20.40$20.402,140
2019-11-27$20.10$20.102,813
2019-11-26$19.95$19.954,727
2019-11-25$20.85$20.857,033
2019-11-22$20.70$20.705,053
2019-11-21$19.95$19.9514,107
2019-11-20$18.75$18.7517,513
2019-11-19$18.75$18.759,627
2019-11-18$19.20$19.2011,280
2019-11-15$20.85$20.853,847
2019-11-14$21.45$21.455,633
2019-11-13$21.30$21.308,667
2019-11-12$20.85$20.856,333
2019-11-11$21.15$21.156,987
2019-11-08$23.40$23.404,300
2019-11-07$23.85$23.852,087
2019-11-06$24.30$24.302,653
2019-11-05$25.20$25.20833
2019-11-04$25.05$25.051,733
2019-11-01$25.35$25.353,620
2019-10-31$23.85$23.855,473
2019-10-30$25.35$25.351,400
2019-10-29$25.50$25.503,220
2019-10-28$26.10$26.103,307
2019-10-25$25.95$25.951,847
2019-10-24$25.65$25.651,893
2019-10-23$25.95$25.952,827
2019-10-22$25.80$25.805,300
2019-10-21$25.95$25.954,293
2019-10-18$26.70$26.707,707
2019-10-17$26.55$26.559,693
2019-10-16$27.45$27.4544,847
2019-10-15$26.25$26.2552,907
2019-10-14$25.05$25.053,580
2019-10-11$25.35$25.353,033
2019-10-10$25.20$25.201,573
2019-10-09$25.80$25.806,620
2019-10-08$26.25$26.2511,647
2019-10-07$26.25$26.252,233
2019-10-04$25.95$25.953,567
2019-10-03$27.60$27.604,993
2019-10-02$26.25$26.2513,840
2019-10-01$28.05$28.0511,547
2019-09-30$29.40$29.4015,747
2019-09-27$30.45$30.452,380
2019-09-26$30.90$30.9010,387
2019-09-25$30.75$30.752,620
2019-09-24$31.05$31.054,980
2019-09-23$31.80$31.807,847
2019-09-20$31.20$31.206,053
2019-09-19$30.90$30.9010,160
2019-09-18$30.15$30.153,427
2019-09-17$30.15$30.159,087
2019-09-16$30.15$30.157,073
2019-09-13$30.45$30.4522,207
2019-09-12$31.50$31.506,713
2019-09-11$32.55$32.5518,653
2019-09-10$31.50$31.505,180
2019-09-09$30.75$30.753,400
2019-09-06$30.75$30.758,100
2019-09-05$29.85$29.853,367
2019-09-04$29.70$29.704,633
2019-09-03$29.55$29.555,760
2019-08-30$29.85$29.856,640
2019-08-29$30.15$30.155,193
2019-08-28$30.45$30.451,893
2019-08-27$30.30$30.307,433
2019-08-26$30.45$30.451,533
2019-08-23$30.45$30.454,180
2019-08-22$30.90$30.903,320
2019-08-21$31.20$31.205,913
2019-08-20$32.25$32.251,560
2019-08-19$31.65$31.653,307
2019-08-16$32.70$32.704,727
2019-08-15$32.10$32.103,007
2019-08-14$32.55$32.5512,667
2019-08-13$34.65$34.6525,500
2019-08-12$35.55$35.5511,993
2019-08-09$34.05$34.056,980
2019-08-08$33.00$33.003,093
2019-08-07$31.80$31.808,793
2019-08-06$32.25$32.255,593
2019-08-05$31.50$31.504,527
2019-08-02$33.00$33.004,373
2019-08-01$33.90$33.9025,087
2019-07-31$31.20$31.208,207
2019-07-30$30.45$30.458,053
2019-07-29$30.15$30.157,040
2019-07-26$30.30$30.302,940
2019-07-25$30.45$30.454,480
2019-07-24$30.60$30.602,740
2019-07-23$30.60$30.607,140
2019-07-22$30.60$30.604,153
2019-07-19$30.60$30.608,267
2019-07-18$31.50$31.504,480
2019-07-17$31.35$31.355,967
2019-07-16$31.50$31.508,260
2019-07-15$31.05$31.0510,287
2019-07-12$31.80$31.8021,027
2019-07-11$34.05$34.05104,187
2019-07-10$33.60$33.608,947
2019-07-09$31.95$31.9512,340
2019-07-08$33.15$33.1514,853
2019-07-05$34.35$34.359,733
2019-07-03$34.50$34.5015,220
2019-07-02$36.15$36.1516,180
2019-07-01$37.80$37.8025,907
2019-06-28$38.25$38.2569,033
2019-06-27$38.70$38.70998,613
2019-06-26$33.45$33.4518,567
2019-06-25$34.65$34.6550,980
2019-06-24$30.45$30.457,067
2019-06-21$30.60$30.606,320
2019-06-20$31.35$31.3517,140
2019-06-19$32.40$32.406,220
2019-06-18$31.65$31.658,713
2019-06-17$31.05$31.0510,113
2019-06-14$31.50$31.5015,953
2019-06-13$31.35$31.3510,700
2019-06-12$32.25$32.254,840
2019-06-11$33.15$33.1512,373
2019-06-10$34.20$34.2014,733
2019-06-07$32.40$32.4013,967
2019-06-06$34.20$34.2016,047
2019-06-05$35.70$35.705,853
2019-06-04$36.60$36.608,800
2019-06-03$37.50$37.5012,553
2019-05-31$38.40$38.408,073
2019-05-30$39.45$39.459,053
2019-05-29$39.30$39.307,360
2019-05-28$40.35$40.357,140
2019-05-24$39.00$39.005,373
2019-05-23$39.15$39.158,887
2019-05-22$41.70$41.708,080
2019-05-21$40.95$40.9528,787
2019-05-20$38.25$38.255,567
2019-05-17$38.10$38.109,627
2019-05-16$37.80$37.8017,313
2019-05-15$36.60$36.6018,573
2019-05-14$35.25$35.2521,860
2019-05-13$37.80$37.8013,307
2019-05-10$38.85$38.8516,253
2019-05-09$40.05$40.0512,440
2019-05-08$42.30$42.3016,680
2019-05-07$43.95$43.959,253
2019-05-06$44.55$44.5512,453
2019-05-03$45.00$45.0010,040
2019-05-02$43.95$43.9512,827
2019-05-01$44.70$44.7019,673
2019-04-30$44.85$44.8513,753
2019-04-29$44.25$44.2525,967
2019-04-26$44.55$44.5546,527
2019-04-25$48.00$48.00448,013
2019-04-24$52.20$52.20110,400
2019-04-23$52.20$52.20859,147
2019-04-22$42.45$42.4541,367
2019-04-18$38.10$38.1011,720
2019-04-17$39.30$39.3019,153
2019-04-16$40.05$40.0516,700
2019-04-15$41.70$41.7035,353
2019-04-12$44.70$44.7021,227
2019-04-11$45.60$45.6017,807
2019-04-10$46.20$46.2028,293
2019-04-09$46.05$46.0518,293
2019-04-08$46.80$46.8032,893
2019-04-05$45.60$45.6053,300
2019-04-04$46.35$46.3575,093
2019-04-03$51.15$51.1529,833
2019-04-02$53.10$53.1035,500
2019-04-01$53.70$53.7038,980
2019-03-29$52.80$52.8059,340
2019-03-28$55.50$55.5060,313
2019-03-27$56.25$56.2587,347
2019-03-26$59.55$59.55502,587
2019-03-25$57.30$57.3070,933
2019-03-22$55.20$55.2063,853
2019-03-21$55.95$55.95113,360
2019-03-20$60.60$60.60135,440
2019-03-19$63.45$63.45292,113
2019-03-18$66.00$66.001,703,640
2019-03-15$52.65$52.651,438,600
2019-03-14$106.05$106.056,157,853
2019-03-13$22.65$22.653,393
2019-03-12$22.50$22.503,640
2019-03-11$22.65$22.653,927
2019-03-08$22.50$22.5046,440
2019-03-07$21.75$21.7510,820
2019-03-06$21.75$21.755,407
2019-03-05$21.45$21.453,907
2019-03-04$21.15$21.156,113
2019-03-01$21.75$21.753,753
2019-02-28$22.05$22.054,093
2019-02-27$22.50$22.503,300
2019-02-26$21.75$21.753,420
2019-02-25$22.65$22.655,400
2019-02-22$22.80$22.809,147
2019-02-21$21.60$21.606,473
2019-02-20$22.65$22.653,200
2019-02-19$22.20$22.206,167
2019-02-15$22.65$22.657,493
2019-02-14$22.95$22.958,527
2019-02-13$24.30$24.3023,693
2019-02-12$22.80$22.8012,833
2019-02-11$21.30$21.3019,807
2019-02-08$23.40$23.4058,987
2019-02-07$25.50$25.50688,520
2019-02-06$22.35$22.354,087
2019-02-05$22.50$22.506,567
2019-02-04$21.15$21.155,613
2019-02-01$20.40$20.4010,753
2019-01-31$19.50$19.502,400
2019-01-30$19.65$19.652,360
2019-01-29$19.50$19.503,087
2019-01-28$20.10$20.104,220
2019-01-25$20.25$20.252,267
2019-01-24$20.10$20.101,140
2019-01-23$19.80$19.807,400
2019-01-22$20.70$20.7011,873
2019-01-18$20.10$20.1012,847
2019-01-17$18.90$18.904,067
2019-01-16$19.05$19.059,360
2019-01-15$18.90$18.9019,440
2019-01-14$19.95$19.9514,673
2019-01-11$20.40$20.4020,773
2019-01-10$21.45$21.4575,520
2019-01-09$24.00$24.001,256,567
2019-01-08$18.45$18.454,487
2019-01-07$18.00$18.005,647
2019-01-04$17.85$17.856,093
2019-01-03$16.65$16.652,680
2019-01-02$17.40$17.404,393