NASDAQ:CYCN | Historical Stock Price | Cyclerion 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
2019-03-18 to 2026-09-04
Data captured

Stock Price Chart

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

$1.03$3.45$11.61$39.04$131.30$441.632019-03-182026-08-27

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

View year

Historical Stock Price — 2021

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2021-12-31$34.40$34.4026,910
2021-12-30$32.20$32.2017,035
2021-12-29$31.20$31.2028,890
2021-12-28$31.20$31.2047,985
2021-12-27$33.20$33.2010,595
2021-12-23$35.00$35.006,295
2021-12-22$34.60$34.607,655
2021-12-21$35.20$35.208,015
2021-12-20$34.60$34.6013,780
2021-12-17$37.20$37.2022,755
2021-12-16$33.80$33.8013,730
2021-12-15$35.00$35.0013,020
2021-12-14$32.00$32.0034,160
2021-12-13$34.40$34.4015,405
2021-12-10$35.60$35.6011,610
2021-12-09$38.60$38.6010,245
2021-12-08$39.80$39.807,035
2021-12-07$39.20$39.2017,620
2021-12-06$37.40$37.4013,265
2021-12-03$35.40$35.4016,355
2021-12-02$39.40$39.4013,400
2021-12-01$38.00$38.0031,020
2021-11-30$43.60$43.6031,695
2021-11-29$48.80$48.8020,165
2021-11-26$49.00$49.0031,295
2021-11-24$53.00$53.00196,650
2021-11-23$43.40$43.4010,545
2021-11-22$43.80$43.8014,025
2021-11-19$46.40$46.4018,205
2021-11-18$46.00$46.0030,990
2021-11-17$50.60$50.607,445
2021-11-16$52.40$52.4010,605
2021-11-15$53.80$53.8011,000
2021-11-12$53.80$53.809,955
2021-11-11$53.00$53.006,520
2021-11-10$52.40$52.4017,000
2021-11-09$55.40$55.409,085
2021-11-08$57.40$57.409,445
2021-11-05$57.60$57.6015,825
2021-11-04$57.80$57.8045,915
2021-11-03$54.20$54.205,530
2021-11-02$52.80$52.8019,590
2021-11-01$52.60$52.605,290
2021-10-29$51.20$51.209,310
2021-10-28$53.00$53.007,240
2021-10-27$52.20$52.207,835
2021-10-26$54.40$54.408,775
2021-10-25$54.20$54.2015,600
2021-10-22$54.80$54.8017,360
2021-10-21$55.80$55.8028,955
2021-10-20$59.00$59.00146,940
2021-10-19$53.20$53.206,150
2021-10-18$52.00$52.0011,650
2021-10-15$53.80$53.8012,415
2021-10-14$56.00$56.0010,930
2021-10-13$57.00$57.009,240
2021-10-12$56.20$56.207,905
2021-10-11$56.40$56.407,525
2021-10-08$57.00$57.007,715
2021-10-07$58.00$58.0021,860
2021-10-06$57.60$57.6014,050
2021-10-05$58.40$58.4014,170
2021-10-04$58.00$58.0022,000
2021-10-01$59.80$59.8010,950
2021-09-30$61.40$61.4027,770
2021-09-29$61.80$61.8021,365
2021-09-28$66.40$66.407,985
2021-09-27$68.80$68.8011,865
2021-09-24$67.60$67.6028,880
2021-09-23$69.80$69.8019,785
2021-09-22$65.00$65.0027,585
2021-09-21$64.80$64.8034,100
2021-09-20$61.80$61.8035,430
2021-09-17$62.40$62.4046,615
2021-09-16$62.00$62.0035,050
2021-09-15$58.80$58.8016,740
2021-09-14$58.80$58.8018,055
2021-09-13$61.60$61.6014,495
2021-09-10$65.40$65.4040,475
2021-09-09$60.20$60.2013,705
2021-09-08$62.20$62.209,290
2021-09-07$63.40$63.4011,825
2021-09-03$63.00$63.007,370
2021-09-02$65.40$65.407,920
2021-09-01$64.20$64.209,295
2021-08-31$68.40$68.4011,205
2021-08-30$63.60$63.608,690
2021-08-27$66.20$66.2010,920
2021-08-26$63.60$63.6013,605
2021-08-25$61.00$61.006,640
2021-08-24$61.00$61.0012,540
2021-08-23$56.40$56.4019,595
2021-08-20$54.60$54.608,180
2021-08-19$54.60$54.6016,090
2021-08-18$56.40$56.4019,065
2021-08-17$59.00$59.0014,195
2021-08-16$60.60$60.6014,955
2021-08-13$63.40$63.408,990
2021-08-12$65.60$65.6020,620
2021-08-11$66.40$66.4017,510
2021-08-10$68.00$68.0023,925
2021-08-09$65.40$65.4013,625
2021-08-06$63.20$63.2011,375
2021-08-05$64.40$64.4016,985
2021-08-04$61.60$61.6023,235
2021-08-03$61.80$61.8022,265
2021-08-02$60.60$60.6017,345
2021-07-30$58.20$58.2026,100
2021-07-29$58.60$58.6053,100
2021-07-28$67.00$67.0028,785
2021-07-27$64.80$64.8040,360
2021-07-26$70.80$70.8091,640
2021-07-23$82.60$82.60195,540
2021-07-22$72.00$72.0082,775
2021-07-21$73.80$73.8033,240
2021-07-20$69.00$69.0011,715
2021-07-19$67.20$67.2032,345
2021-07-16$66.60$66.6017,125
2021-07-15$66.20$66.2034,590
2021-07-14$69.60$69.6028,065
2021-07-13$72.80$72.8030,910
2021-07-12$76.80$76.8018,010
2021-07-09$74.40$74.4022,160
2021-07-08$73.60$73.6029,050
2021-07-07$72.60$72.6024,450
2021-07-06$74.20$74.2024,845
2021-07-02$78.40$78.4019,320
2021-07-01$78.80$78.8021,460
2021-06-30$78.00$78.0019,785
2021-06-29$79.60$79.6025,130
2021-06-28$82.80$82.8039,620
2021-06-25$81.60$81.60190,280
2021-06-24$79.40$79.4081,895
2021-06-23$75.20$75.2046,020
2021-06-22$74.00$74.0036,550
2021-06-21$74.00$74.0031,080
2021-06-18$74.40$74.4025,530
2021-06-17$73.60$73.6039,125
2021-06-16$75.80$75.8034,050
2021-06-15$75.40$75.4095,885
2021-06-14$85.80$85.80200,455
2021-06-11$79.40$79.4042,820
2021-06-10$83.00$83.00128,955
2021-06-09$81.60$81.60188,445
2021-06-08$82.00$82.001,046,425
2021-06-07$63.00$63.00416,540
2021-06-04$63.80$63.80147,665
2021-06-03$64.60$64.6011,765
2021-06-02$66.00$66.0033,070
2021-06-01$68.60$68.6016,660
2021-05-28$64.80$64.8019,125
2021-05-27$64.20$64.2017,335
2021-05-26$61.00$61.0020,850
2021-05-25$59.20$59.2015,010
2021-05-24$59.00$59.0028,355
2021-05-21$62.60$62.60110,390
2021-05-20$60.20$60.2023,000
2021-05-19$58.80$58.807,040
2021-05-18$59.20$59.2019,785
2021-05-17$60.20$60.2013,355
2021-05-14$58.80$58.8019,395
2021-05-13$56.20$56.2017,260
2021-05-12$59.00$59.0034,020
2021-05-11$56.40$56.4046,760
2021-05-10$54.80$54.8083,775
2021-05-07$55.20$55.20321,350
2021-05-06$49.80$49.8027,950
2021-05-05$51.00$51.0038,985
2021-05-04$46.40$46.4039,930
2021-05-03$44.40$44.4022,520
2021-04-30$43.60$43.6042,675
2021-04-29$45.80$45.8023,120
2021-04-28$48.80$48.8026,890
2021-04-27$51.20$51.2087,175
2021-04-26$62.40$62.4035,790
2021-04-23$58.20$58.2021,755
2021-04-22$55.60$55.6032,950
2021-04-21$55.20$55.2025,100
2021-04-20$52.20$52.2022,675
2021-04-19$48.60$48.6019,345
2021-04-16$51.60$51.6024,115
2021-04-15$50.00$50.0016,870
2021-04-14$55.00$55.0023,055
2021-04-13$54.00$54.0011,140
2021-04-12$55.40$55.4014,025
2021-04-09$57.00$57.0012,475
2021-04-08$57.00$57.008,920
2021-04-07$57.60$57.608,075
2021-04-06$57.60$57.6010,645
2021-04-05$59.20$59.2017,500
2021-04-01$65.80$65.8029,040
2021-03-31$55.80$55.8033,965
2021-03-30$53.80$53.8046,535
2021-03-29$57.80$57.8023,025
2021-03-26$61.60$61.6015,725
2021-03-25$69.60$69.609,750
2021-03-24$65.80$65.808,155
2021-03-23$70.60$70.6010,110
2021-03-22$79.00$79.009,145
2021-03-19$80.00$80.0025,035
2021-03-18$84.20$84.204,800
2021-03-17$88.40$88.4010,015
2021-03-16$84.40$84.4016,210
2021-03-15$81.80$81.805,235
2021-03-12$85.40$85.405,175
2021-03-11$86.80$86.808,390
2021-03-10$83.40$83.409,430
2021-03-09$80.00$80.008,870
2021-03-08$76.80$76.8010,040
2021-03-05$71.80$71.8022,035
2021-03-04$75.20$75.2016,670
2021-03-03$82.20$82.2015,890
2021-03-02$80.60$80.609,220
2021-03-01$78.00$78.009,385
2021-02-26$76.80$76.8022,595
2021-02-25$76.40$76.4036,980
2021-02-24$84.40$84.409,655
2021-02-23$78.80$78.8018,905
2021-02-22$80.80$80.8012,570
2021-02-19$87.40$87.4012,505
2021-02-18$86.20$86.2012,950
2021-02-17$92.20$92.2021,830
2021-02-16$91.60$91.6020,585
2021-02-12$86.00$86.0016,385
2021-02-11$89.80$89.8020,715
2021-02-10$92.00$92.0031,090
2021-02-09$95.20$95.2027,605
2021-02-08$91.80$91.8035,040
2021-02-05$89.00$89.0083,705
2021-02-04$102.40$102.401,133,495
2021-02-03$74.40$74.4029,210
2021-02-02$72.20$72.2039,865
2021-02-01$64.60$64.608,595
2021-01-29$63.20$63.209,160
2021-01-28$62.20$62.2015,870
2021-01-27$62.60$62.6013,320
2021-01-26$63.40$63.409,740
2021-01-25$66.40$66.407,685
2021-01-22$67.00$67.007,960
2021-01-21$66.60$66.6011,310
2021-01-20$66.40$66.406,675
2021-01-19$66.60$66.609,445
2021-01-15$64.40$64.4025,470
2021-01-14$68.40$68.4015,800
2021-01-13$72.00$72.0039,800
2021-01-12$67.00$67.007,000
2021-01-11$65.60$65.607,450
2021-01-08$65.20$65.205,405
2021-01-07$64.80$64.8011,750
2021-01-06$62.20$62.208,910
2021-01-05$62.00$62.008,290
2021-01-04$60.80$60.808,780