OTC:SYBX | Historical Stock Price | SYNLOGIC, 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
2015-09-30 to 2026-08-27
Data captured

Stock Price Chart

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

$0.53$2.42$11.02$50.18$228.40$1,039.662015-09-302026-08-27

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 volume
2021-12-31$36.30$36.3010,180
2021-12-30$35.85$35.8513,820
2021-12-29$35.55$35.5513,973
2021-12-28$34.35$34.3516,880
2021-12-27$36.00$36.0015,893
2021-12-23$36.75$36.7514,487
2021-12-22$35.25$35.259,773
2021-12-21$35.85$35.8510,687
2021-12-20$36.15$36.1515,700
2021-12-17$34.05$34.0536,747
2021-12-16$34.95$34.956,260
2021-12-15$36.60$36.6022,533
2021-12-14$36.90$36.907,987
2021-12-13$38.40$38.409,847
2021-12-10$38.70$38.707,387
2021-12-09$40.20$40.2019,560
2021-12-08$40.80$40.8026,847
2021-12-07$38.10$38.1027,660
2021-12-06$35.10$35.1025,667
2021-12-03$34.05$34.0536,440
2021-12-02$35.55$35.5522,327
2021-12-01$36.30$36.3046,980
2021-11-30$37.35$37.3561,847
2021-11-29$36.30$36.3013,307
2021-11-26$38.85$38.8522,573
2021-11-24$39.60$39.60129,027
2021-11-23$36.00$36.0015,547
2021-11-22$37.05$37.0512,400
2021-11-19$39.45$39.459,000
2021-11-18$37.65$37.6512,993
2021-11-17$40.20$40.206,953
2021-11-16$41.25$41.257,000
2021-11-15$41.40$41.406,327
2021-11-12$41.40$41.4011,460
2021-11-11$39.75$39.7552,760
2021-11-10$39.90$39.9013,800
2021-11-09$40.35$40.3510,600
2021-11-08$41.10$41.1015,027
2021-11-05$41.10$41.106,220
2021-11-04$41.25$41.254,720
2021-11-03$40.80$40.808,820
2021-11-02$39.60$39.607,613
2021-11-01$40.05$40.055,447
2021-10-29$38.40$38.4012,900
2021-10-28$38.85$38.8511,233
2021-10-27$38.55$38.558,267
2021-10-26$39.60$39.606,087
2021-10-25$39.75$39.755,133
2021-10-22$40.05$40.0511,493
2021-10-21$41.40$41.4022,033
2021-10-20$41.10$41.1013,433
2021-10-19$38.85$38.8513,180
2021-10-18$38.85$38.8529,700
2021-10-15$40.50$40.5011,693
2021-10-14$40.35$40.3513,013
2021-10-13$41.25$41.2511,853
2021-10-12$41.25$41.2523,967
2021-10-11$40.95$40.9513,973
2021-10-08$41.40$41.4014,207
2021-10-07$41.40$41.4014,787
2021-10-06$42.15$42.159,727
2021-10-05$42.60$42.6017,487
2021-10-04$42.45$42.4551,807
2021-10-01$45.00$45.0019,640
2021-09-30$45.75$45.7539,947
2021-09-29$42.90$42.9035,413
2021-09-28$46.20$46.2024,747
2021-09-27$45.75$45.7530,913
2021-09-24$47.55$47.5524,487
2021-09-23$47.70$47.70256,060
2021-09-22$52.35$52.3531,260
2021-09-21$53.55$53.5566,233
2021-09-20$55.65$55.65622,053
2021-09-17$49.35$49.3518,193
2021-09-16$47.85$47.857,687
2021-09-15$47.55$47.5515,633
2021-09-14$45.30$45.307,240
2021-09-13$44.85$44.858,440
2021-09-10$47.40$47.4014,920
2021-09-09$47.70$47.709,107
2021-09-08$48.30$48.3022,820
2021-09-07$45.15$45.1524,233
2021-09-03$46.05$46.05132,767
2021-09-02$40.50$40.5025,887
2021-09-01$40.95$40.9514,280
2021-08-31$40.20$40.202,840
2021-08-30$40.65$40.659,460
2021-08-27$38.70$38.705,873
2021-08-26$39.60$39.605,687
2021-08-25$40.20$40.203,233
2021-08-24$39.45$39.4515,553
2021-08-23$40.50$40.508,047
2021-08-20$36.75$36.7510,880
2021-08-19$38.70$38.704,107
2021-08-18$39.90$39.904,287
2021-08-17$40.35$40.357,560
2021-08-16$41.10$41.1010,340
2021-08-13$42.30$42.304,847
2021-08-12$43.05$43.054,967
2021-08-11$43.80$43.805,173
2021-08-10$44.55$44.557,820
2021-08-09$44.40$44.4013,393
2021-08-06$45.60$45.6013,233
2021-08-05$43.05$43.059,187
2021-08-04$43.80$43.805,447
2021-08-03$43.65$43.6512,960
2021-08-02$46.35$46.3511,667
2021-07-30$47.40$47.4014,067
2021-07-29$48.00$48.006,487
2021-07-28$48.90$48.9012,633
2021-07-27$48.15$48.155,580
2021-07-26$46.50$46.5024,133
2021-07-23$47.70$47.7028,367
2021-07-22$48.90$48.9020,480
2021-07-21$51.45$51.458,473
2021-07-20$50.40$50.407,753
2021-07-19$49.20$49.2016,433
2021-07-16$49.35$49.3515,833
2021-07-15$51.90$51.9018,100
2021-07-14$48.90$48.906,567
2021-07-13$51.30$51.306,347
2021-07-12$54.00$54.009,967
2021-07-09$55.65$55.653,500
2021-07-08$56.25$56.2521,587
2021-07-07$53.70$53.7019,760
2021-07-06$57.00$57.0012,627
2021-07-02$58.35$58.3515,680
2021-07-01$61.50$61.5012,087
2021-06-30$58.35$58.357,340
2021-06-29$60.15$60.1512,833
2021-06-28$62.10$62.1021,333
2021-06-25$63.00$63.0014,493
2021-06-24$65.25$65.2516,467
2021-06-23$65.85$65.8519,487
2021-06-22$63.60$63.6018,840
2021-06-21$62.70$62.7024,707
2021-06-18$64.50$64.5060,207
2021-06-17$64.95$64.9549,167
2021-06-16$61.50$61.5025,367
2021-06-15$58.80$58.8031,953
2021-06-14$59.85$59.8520,940
2021-06-11$55.65$55.6525,120
2021-06-10$55.05$55.057,240
2021-06-09$53.40$53.4010,847
2021-06-08$53.40$53.4015,907
2021-06-07$52.50$52.507,947
2021-06-04$54.60$54.6016,387
2021-06-03$54.45$54.4511,393
2021-06-02$53.70$53.709,973
2021-06-01$54.75$54.7511,353
2021-05-28$56.10$56.1010,673
2021-05-27$57.90$57.908,873
2021-05-26$58.20$58.209,767
2021-05-25$58.05$58.0511,807
2021-05-24$58.65$58.6510,767
2021-05-21$61.35$61.3514,300
2021-05-20$58.20$58.2024,020
2021-05-19$56.85$56.857,640
2021-05-18$55.65$55.6519,493
2021-05-17$53.85$53.8512,320
2021-05-14$51.90$51.9028,880
2021-05-13$47.40$47.4026,227
2021-05-12$48.90$48.9035,773
2021-05-11$50.70$50.70530,227
2021-05-10$45.00$45.0039,900
2021-05-07$47.10$47.1022,887
2021-05-06$46.35$46.3518,500
2021-05-05$51.30$51.3012,867
2021-05-04$50.10$50.1017,340
2021-05-03$51.75$51.7519,273
2021-04-30$52.35$52.356,080
2021-04-29$53.70$53.708,473
2021-04-28$54.45$54.458,427
2021-04-27$54.60$54.6014,307
2021-04-26$56.70$56.7018,307
2021-04-23$56.10$56.1038,947
2021-04-22$50.40$50.4013,860
2021-04-21$47.25$47.2540,613
2021-04-20$45.60$45.6029,353
2021-04-19$46.50$46.5038,773
2021-04-16$51.00$51.00131,433
2021-04-15$47.40$47.4013,267
2021-04-14$48.45$48.4513,587
2021-04-13$49.80$49.8018,973
2021-04-12$49.50$49.5013,720
2021-04-09$49.95$49.9512,827
2021-04-08$50.10$50.107,867
2021-04-07$49.80$49.8025,187
2021-04-06$52.80$52.8013,220
2021-04-05$54.90$54.9025,413
2021-04-01$54.15$54.1511,787
2021-03-31$53.70$53.708,960
2021-03-30$53.10$53.1035,173
2021-03-29$50.40$50.4022,967
2021-03-26$55.95$55.9524,440
2021-03-25$58.95$58.95328,693
2021-03-24$58.20$58.2035,427
2021-03-23$61.80$61.8013,273
2021-03-22$65.70$65.7018,540
2021-03-19$67.05$67.0523,220
2021-03-18$60.30$60.3026,887
2021-03-17$62.70$62.7022,313
2021-03-16$56.85$56.8531,173
2021-03-15$56.85$56.8513,747
2021-03-12$55.80$55.8014,740
2021-03-11$56.25$56.2521,127
2021-03-10$52.50$52.5014,073
2021-03-09$51.90$51.9017,907
2021-03-08$47.25$47.2514,647
2021-03-05$51.15$51.1534,067
2021-03-04$46.35$46.3536,833
2021-03-03$57.60$57.6013,920
2021-03-02$59.85$59.8517,720
2021-03-01$57.00$57.0015,740
2021-02-26$56.85$56.8514,513
2021-02-25$56.70$56.7022,127
2021-02-24$60.45$60.4513,000
2021-02-23$60.60$60.6034,100
2021-02-22$65.85$65.8524,333
2021-02-19$73.50$73.5012,453
2021-02-18$66.60$66.6018,233
2021-02-17$74.10$74.1012,140
2021-02-16$75.60$75.6019,927
2021-02-12$72.90$72.9023,300
2021-02-11$71.10$71.1023,040
2021-02-10$75.75$75.7526,733
2021-02-09$74.25$74.2534,633
2021-02-08$73.50$73.5071,733
2021-02-05$62.70$62.7021,140
2021-02-04$64.05$64.0529,880
2021-02-03$62.40$62.4037,420
2021-02-02$56.25$56.2522,067
2021-02-01$54.15$54.1517,833
2021-01-29$55.65$55.6521,460
2021-01-28$52.35$52.3546,893
2021-01-27$56.70$56.7039,573
2021-01-26$60.45$60.4521,573
2021-01-25$61.35$61.3532,753
2021-01-22$61.35$61.3534,693
2021-01-21$64.05$64.0567,760
2021-01-20$57.60$57.6056,460
2021-01-19$57.15$57.1582,100
2021-01-15$52.80$52.80103,427
2021-01-14$48.90$48.90155,473
2021-01-13$47.70$47.702,513,873
2021-01-12$36.00$36.0035,033
2021-01-11$36.15$36.1513,173
2021-01-08$35.55$35.5526,367
2021-01-07$35.70$35.7033,807
2021-01-06$33.75$33.7535,820
2021-01-05$33.60$33.6042,013
2021-01-04$33.00$33.0029,433