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.

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Historical Stock Price — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2018-12-31$105.15$105.1512,153
2018-12-28$104.55$104.5522,627
2018-12-27$111.75$111.7515,380
2018-12-26$109.50$109.5010,747
2018-12-24$98.55$98.557,867
2018-12-21$89.25$89.2537,393
2018-12-20$96.00$96.0015,400
2018-12-19$100.05$100.059,627
2018-12-18$105.75$105.757,613
2018-12-17$111.45$111.456,347
2018-12-14$114.60$114.606,187
2018-12-13$113.10$113.107,720
2018-12-12$114.60$114.604,853
2018-12-11$110.40$110.405,687
2018-12-10$112.80$112.807,627
2018-12-07$117.45$117.454,713
2018-12-06$120.75$120.755,960
2018-12-04$118.05$118.057,900
2018-12-03$132.00$132.004,460
2018-11-30$127.65$127.655,267
2018-11-29$127.50$127.505,093
2018-11-28$127.50$127.505,340
2018-11-27$124.80$124.803,447
2018-11-26$130.95$130.953,500
2018-11-23$135.75$135.754,353
2018-11-21$131.25$131.2511,247
2018-11-20$131.10$131.105,880
2018-11-19$131.55$131.5511,933
2018-11-16$143.40$143.4010,660
2018-11-15$130.05$130.0512,547
2018-11-14$126.60$126.6017,533
2018-11-13$115.20$115.204,547
2018-11-12$116.25$116.258,527
2018-11-09$119.85$119.8510,167
2018-11-08$119.85$119.855,727
2018-11-07$120.82$120.825,740
2018-11-06$118.35$118.357,353
2018-11-05$121.20$121.205,873
2018-11-02$123.60$123.607,993
2018-11-01$124.80$124.807,807
2018-10-31$118.65$118.655,307
2018-10-30$114.90$114.903,340
2018-10-29$115.65$115.653,147
2018-10-26$121.50$121.508,807
2018-10-25$118.95$118.956,460
2018-10-24$116.40$116.4010,953
2018-10-23$126.15$126.154,893
2018-10-22$132.00$132.007,947
2018-10-19$135.60$135.606,467
2018-10-18$138.90$138.907,440
2018-10-17$148.20$148.204,487
2018-10-16$156.45$156.455,380
2018-10-15$151.05$151.058,580
2018-10-12$146.10$146.109,673
2018-10-11$151.65$151.657,473
2018-10-10$164.85$164.856,453
2018-10-09$183.15$183.159,040
2018-10-08$184.65$184.655,000
2018-10-05$187.95$187.958,800
2018-10-04$201.60$201.609,767
2018-10-03$217.35$217.354,487
2018-10-02$216.00$216.006,420
2018-10-01$210.75$210.7512,453
2018-09-28$213.15$213.1515,487
2018-09-27$205.95$205.955,260
2018-09-26$195.15$195.1512,207
2018-09-25$202.20$202.204,520
2018-09-24$196.50$196.507,793
2018-09-21$195.00$195.0025,807
2018-09-20$191.25$191.2515,047
2018-09-19$201.00$201.0010,073
2018-09-18$195.15$195.1511,473
2018-09-17$195.30$195.3010,653
2018-09-14$185.70$185.7011,320
2018-09-13$178.35$178.357,673
2018-09-12$182.55$182.557,867
2018-09-11$190.35$190.356,920
2018-09-10$192.90$192.908,147
2018-09-07$194.55$194.5511,993
2018-09-06$194.85$194.8517,827
2018-09-05$191.40$191.4041,027
2018-09-04$160.95$160.957,587
2018-08-31$158.70$158.706,260
2018-08-30$150.15$150.158,320
2018-08-29$143.85$143.856,767
2018-08-28$143.40$143.404,840
2018-08-27$139.05$139.059,873
2018-08-24$135.75$135.7532,380
2018-08-23$117.90$117.903,720
2018-08-22$118.65$118.655,900
2018-08-21$119.85$119.856,620
2018-08-20$115.50$115.505,107
2018-08-17$115.20$115.203,900
2018-08-16$117.15$117.1512,680
2018-08-15$113.70$113.705,600
2018-08-14$114.15$114.1512,233
2018-08-13$112.65$112.657,460
2018-08-10$115.50$115.5015,140
2018-08-09$115.05$115.0524,693
2018-08-08$122.55$122.5514,900
2018-08-07$130.35$130.355,547
2018-08-06$132.45$132.456,780
2018-08-03$131.70$131.704,653
2018-08-02$135.30$135.3011,800
2018-08-01$138.45$138.454,227
2018-07-31$140.55$140.554,593
2018-07-30$139.65$139.657,713
2018-07-27$145.80$145.8018,487
2018-07-26$162.30$162.301,493
2018-07-25$164.70$164.703,093
2018-07-24$165.00$165.005,480
2018-07-23$165.45$165.454,073
2018-07-20$165.00$165.007,280
2018-07-19$166.05$166.056,000
2018-07-18$165.90$165.904,147
2018-07-17$165.75$165.756,453
2018-07-16$166.05$166.055,860
2018-07-13$172.50$172.508,627
2018-07-12$168.00$168.008,247
2018-07-11$165.45$165.456,560
2018-07-10$166.50$166.504,167
2018-07-09$165.60$165.605,240
2018-07-06$165.30$165.307,433
2018-07-05$163.65$163.657,367
2018-07-03$157.80$157.808,327
2018-07-02$152.85$152.8514,380
2018-06-29$147.45$147.4510,567
2018-06-28$142.95$142.956,767
2018-06-27$141.45$141.456,567
2018-06-26$141.75$141.755,953
2018-06-25$141.45$141.4515,987
2018-06-22$154.50$154.50119,320
2018-06-21$151.05$151.059,180
2018-06-20$150.00$150.0011,120
2018-06-19$144.45$144.457,620
2018-06-18$141.00$141.008,380
2018-06-15$143.25$143.256,773
2018-06-14$142.80$142.808,273
2018-06-13$140.40$140.408,180
2018-06-12$145.65$145.656,380
2018-06-11$139.35$139.359,973
2018-06-08$143.25$143.256,420
2018-06-07$148.05$148.056,307
2018-06-06$151.20$151.2010,647
2018-06-05$143.25$143.253,807
2018-06-04$140.10$140.105,640
2018-06-01$141.00$141.008,413
2018-05-31$138.30$138.309,007
2018-05-30$135.30$135.308,347
2018-05-29$135.15$135.1512,767
2018-05-25$140.85$140.855,120
2018-05-24$138.75$138.7516,453
2018-05-23$146.10$146.108,980
2018-05-22$148.35$148.352,047
2018-05-21$149.85$149.854,407
2018-05-18$147.00$147.006,100
2018-05-17$149.55$149.556,367
2018-05-16$153.00$153.005,167
2018-05-15$153.60$153.6013,507
2018-05-14$158.85$158.857,633
2018-05-11$176.40$176.4011,487
2018-05-10$199.05$199.051,840
2018-05-09$199.95$199.952,940
2018-05-08$198.00$198.002,460
2018-05-07$196.50$196.504,020
2018-05-04$198.45$198.453,693
2018-05-03$197.70$197.702,720
2018-05-02$199.35$199.352,887
2018-05-01$196.95$196.953,860
2018-04-30$197.70$197.703,373
2018-04-27$198.90$198.905,047
2018-04-26$197.25$197.251,933
2018-04-25$197.25$197.2511,707
2018-04-24$196.05$196.054,347
2018-04-23$190.50$190.5013,140
2018-04-20$179.10$179.104,920
2018-04-19$175.95$175.953,007
2018-04-18$176.85$176.854,253
2018-04-17$178.95$178.954,027
2018-04-16$170.70$170.703,267
2018-04-13$171.90$171.905,640
2018-04-12$176.10$176.104,793
2018-04-11$169.80$169.805,887
2018-04-10$158.70$158.704,827
2018-04-09$148.35$148.357,247
2018-04-06$145.50$145.5013,100
2018-04-05$137.70$137.704,140
2018-04-04$140.10$140.106,020
2018-04-03$139.35$139.352,893
2018-04-02$142.50$142.5010,040
2018-03-29$140.70$140.704,313
2018-03-28$142.05$142.057,213
2018-03-27$141.90$141.905,920
2018-03-26$149.10$149.1010,300
2018-03-23$148.95$148.958,020
2018-03-22$149.10$149.106,287
2018-03-21$150.75$150.758,780
2018-03-20$142.95$142.957,567
2018-03-19$148.80$148.806,193
2018-03-16$147.15$147.158,173
2018-03-15$150.60$150.605,953
2018-03-14$149.25$149.256,040
2018-03-13$151.20$151.204,160
2018-03-12$154.35$154.358,287
2018-03-09$168.90$168.901,727
2018-03-08$172.05$172.055,940
2018-03-07$169.65$169.656,060
2018-03-06$163.95$163.953,293
2018-03-05$162.30$162.303,420
2018-03-02$161.10$161.108,827
2018-03-01$155.85$155.856,200
2018-02-28$160.95$160.956,800
2018-02-27$162.30$162.304,547
2018-02-26$173.10$173.107,093
2018-02-23$181.80$181.8010,440
2018-02-22$174.00$174.006,240
2018-02-21$170.25$170.259,573
2018-02-20$172.05$172.059,547
2018-02-16$164.70$164.7013,720
2018-02-15$162.45$162.4514,800
2018-02-14$152.70$152.7023,187
2018-02-13$142.35$142.352,753
2018-02-12$141.15$141.152,747
2018-02-09$143.10$143.1011,060
2018-02-08$145.95$145.959,020
2018-02-07$148.50$148.5012,427
2018-02-06$147.45$147.455,553
2018-02-05$149.25$149.2512,193
2018-02-02$147.00$147.0022,880
2018-02-01$147.30$147.309,740
2018-01-31$149.55$149.5524,920
2018-01-30$145.95$145.9512,953
2018-01-29$144.90$144.9035,387
2018-01-26$144.75$144.7517,253
2018-01-25$145.05$145.0518,293
2018-01-24$145.50$145.50110,447
2018-01-23$160.65$160.653,280
2018-01-22$159.45$159.455,513
2018-01-19$153.75$153.751,160
2018-01-18$158.40$158.40433
2018-01-17$158.85$158.85307
2018-01-16$161.10$161.103,060
2018-01-12$156.75$156.75607
2018-01-11$156.75$156.75647
2018-01-10$158.40$158.401,273
2018-01-09$157.20$157.203,087
2018-01-08$153.60$153.602,967
2018-01-05$160.20$160.20807
2018-01-04$156.30$156.30553
2018-01-03$156.30$156.305,487
2018-01-02$162.00$162.009,393