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 — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2019-12-31$54.40$54.4030,165
2019-12-30$54.00$54.0036,680
2019-12-27$50.80$50.8042,455
2019-12-26$53.40$53.4077,105
2019-12-24$49.80$49.8025,730
2019-12-23$46.60$46.6036,200
2019-12-20$46.00$46.0087,170
2019-12-19$44.00$44.0027,435
2019-12-18$44.80$44.8026,200
2019-12-17$43.00$43.00151,365
2019-12-16$45.80$45.80136,515
2019-12-13$39.20$39.2015,360
2019-12-12$38.00$38.0027,715
2019-12-11$37.60$37.6018,610
2019-12-10$38.00$38.0015,840
2019-12-09$36.80$36.8027,095
2019-12-06$37.80$37.8021,560
2019-12-05$38.60$38.6038,585
2019-12-04$38.40$38.4091,410
2019-12-03$36.40$36.4032,825
2019-12-02$37.60$37.6019,750
2019-11-29$37.00$37.0033,615
2019-11-27$36.00$36.0032,140
2019-11-26$36.40$36.4027,785
2019-11-25$39.40$39.4027,780
2019-11-22$40.20$40.2027,610
2019-11-21$42.60$42.6033,905
2019-11-20$39.60$39.6048,575
2019-11-19$40.00$40.0082,270
2019-11-18$36.40$36.4046,085
2019-11-15$36.00$36.0029,160
2019-11-14$36.40$36.4033,060
2019-11-13$38.80$38.8045,495
2019-11-12$39.60$39.6057,470
2019-11-11$41.20$41.2039,665
2019-11-08$38.00$38.0082,540
2019-11-07$42.40$42.4019,815
2019-11-06$42.20$42.2045,450
2019-11-05$46.00$46.0045,090
2019-11-04$49.00$49.0059,285
2019-11-01$49.00$49.0077,735
2019-10-31$47.80$47.80135,020
2019-10-30$55.00$55.00335,640
2019-10-29$268.60$268.606,570
2019-10-28$219.80$219.803,720
2019-10-25$219.20$219.207,570
2019-10-24$213.00$213.005,045
2019-10-23$219.20$219.203,750
2019-10-22$223.40$223.403,380
2019-10-21$217.40$217.401,730
2019-10-18$190.80$190.802,130
2019-10-17$206.00$206.002,165
2019-10-16$193.00$193.003,165
2019-10-15$194.00$194.002,215
2019-10-14$180.20$180.202,005
2019-10-11$173.40$173.402,995
2019-10-10$169.40$169.401,740
2019-10-09$175.80$175.803,835
2019-10-08$167.60$167.602,780
2019-10-07$173.00$173.002,155
2019-10-04$174.40$174.404,305
2019-10-03$188.80$188.806,735
2019-10-02$187.00$187.002,855
2019-10-01$202.40$202.404,530
2019-09-30$242.40$242.404,350
2019-09-27$265.00$265.004,540
2019-09-26$278.60$278.606,105
2019-09-25$279.80$279.805,670
2019-09-24$281.60$281.603,830
2019-09-23$280.60$280.603,915
2019-09-20$290.80$290.8013,645
2019-09-19$278.00$278.006,405
2019-09-18$272.60$272.605,245
2019-09-17$278.00$278.008,445
2019-09-16$246.00$246.003,830
2019-09-13$222.80$222.804,365
2019-09-12$222.00$222.009,055
2019-09-11$213.00$213.006,755
2019-09-10$213.60$213.605,825
2019-09-09$209.00$209.001,900
2019-09-06$202.00$202.005,250
2019-09-05$198.80$198.805,515
2019-09-04$194.20$194.203,430
2019-09-03$190.00$190.004,500
2019-08-30$190.20$190.201,440
2019-08-29$198.60$198.603,295
2019-08-28$182.80$182.805,590
2019-08-27$175.80$175.803,075
2019-08-26$177.60$177.603,575
2019-08-23$176.60$176.602,035
2019-08-22$183.20$183.203,240
2019-08-21$197.20$197.205,530
2019-08-20$177.00$177.0035,635
2019-08-19$178.60$178.604,600
2019-08-16$177.00$177.005,860
2019-08-15$162.40$162.401,785
2019-08-14$167.00$167.002,365
2019-08-13$171.20$171.202,125
2019-08-12$166.40$166.402,485
2019-08-09$176.00$176.002,730
2019-08-08$168.20$168.204,720
2019-08-07$169.40$169.401,705
2019-08-06$171.80$171.802,635
2019-08-05$164.20$164.202,025
2019-08-02$176.20$176.203,435
2019-08-01$184.00$184.004,265
2019-07-31$185.80$185.808,385
2019-07-30$193.00$193.003,905
2019-07-29$193.40$193.403,220
2019-07-26$195.40$195.405,470
2019-07-25$211.80$211.805,630
2019-07-24$228.40$228.4010,425
2019-07-23$241.40$241.402,730
2019-07-22$241.20$241.202,925
2019-07-19$239.60$239.606,335
2019-07-18$238.00$238.008,755
2019-07-17$238.00$238.004,650
2019-07-16$244.80$244.804,455
2019-07-15$248.40$248.404,405
2019-07-12$249.40$249.407,905
2019-07-11$244.20$244.208,405
2019-07-10$241.40$241.404,285
2019-07-09$240.00$240.003,435
2019-07-08$239.60$239.6012,850
2019-07-05$243.00$243.004,405
2019-07-03$243.60$243.605,700
2019-07-02$240.80$240.809,835
2019-07-01$232.80$232.8010,950
2019-06-28$229.00$229.0083,720
2019-06-27$224.00$224.009,480
2019-06-26$222.00$222.008,330
2019-06-25$225.00$225.006,925
2019-06-24$215.60$215.609,650
2019-06-21$222.40$222.4038,770
2019-06-20$233.80$233.807,310
2019-06-19$229.20$229.205,245
2019-06-18$229.80$229.805,580
2019-06-17$215.20$215.209,015
2019-06-14$195.60$195.6012,310
2019-06-13$192.00$192.009,380
2019-06-12$195.40$195.408,050
2019-06-11$193.80$193.807,480
2019-06-10$197.60$197.606,215
2019-06-07$202.40$202.406,850
2019-06-06$224.40$224.403,800
2019-06-05$211.00$211.0030,320
2019-06-04$226.00$226.005,940
2019-06-03$226.80$226.8010,675
2019-05-31$279.00$279.003,880
2019-05-30$268.80$268.808,225
2019-05-29$280.00$280.006,490
2019-05-28$300.00$300.0010,685
2019-05-24$303.00$303.003,130
2019-05-23$301.20$301.204,915
2019-05-22$306.60$306.606,250
2019-05-21$306.20$306.2012,890
2019-05-20$294.40$294.406,285
2019-05-17$292.20$292.204,845
2019-05-16$294.20$294.2012,365
2019-05-15$286.40$286.4013,890
2019-05-14$295.40$295.407,140
2019-05-13$301.60$301.603,565
2019-05-10$332.80$332.805,975
2019-05-09$324.60$324.605,275
2019-05-08$317.20$317.205,615
2019-05-07$306.80$306.804,615
2019-05-06$332.20$332.202,665
2019-05-03$306.00$306.004,170
2019-05-02$306.00$306.004,235
2019-05-01$304.00$304.0010,520
2019-04-30$304.60$304.609,395
2019-04-29$308.00$308.002,300
2019-04-26$310.00$310.003,325
2019-04-25$308.60$308.604,375
2019-04-24$310.20$310.205,945
2019-04-23$309.80$309.808,810
2019-04-22$311.20$311.203,830
2019-04-18$311.20$311.206,920
2019-04-17$324.60$324.606,325
2019-04-16$340.20$340.203,855
2019-04-15$352.80$352.8016,555
2019-04-12$365.80$365.8015,500
2019-04-11$362.40$362.4015,630
2019-04-10$369.20$369.2026,870
2019-04-09$358.00$358.0024,075
2019-04-08$331.00$331.0048,395
2019-04-05$325.40$325.4034,805
2019-04-04$344.60$344.6014,380
2019-04-03$359.40$359.4021,585
2019-04-02$289.80$289.8016,790
2019-04-01$457.00$457.0035
2019-03-29$420.60$420.600
2019-03-28$420.60$420.605
2019-03-27$420.60$420.605
2019-03-26$420.60$420.6020
2019-03-25$380.00$380.0030
2019-03-22$289.92$289.9220
2019-03-21$276.20$276.2010
2019-03-20$270.28$270.280
2019-03-19$270.28$270.285
2019-03-18$250.00$250.00455