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 — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2025-12-31$1.12$1.1232,900
2025-12-30$1.13$1.1324,400
2025-12-29$1.16$1.165,300
2025-12-26$1.22$1.2229,800
2025-12-24$1.17$1.177,700
2025-12-23$1.17$1.1753,300
2025-12-22$1.19$1.1939,000
2025-12-19$1.20$1.2035,600
2025-12-18$1.13$1.1380,600
2025-12-17$1.11$1.1148,300
2025-12-16$1.06$1.0645,400
2025-12-15$1.05$1.0530,400
2025-12-12$1.11$1.1126,500
2025-12-11$1.10$1.1035,200
2025-12-10$1.08$1.0856,200
2025-12-09$1.04$1.0457,400
2025-12-08$1.04$1.0425,800
2025-12-05$1.03$1.0366,000
2025-12-04$1.15$1.15731,700
2025-12-03$1.30$1.3023,800
2025-12-02$1.42$1.4223,200
2025-12-01$1.41$1.4113,900
2025-11-28$1.46$1.46145,700
2025-11-26$1.65$1.655,000
2025-11-25$1.67$1.673,000
2025-11-24$1.64$1.644,900
2025-11-21$1.61$1.6111,000
2025-11-20$1.60$1.6043,300
2025-11-19$1.62$1.624,200
2025-11-18$1.65$1.6535,700
2025-11-17$1.69$1.6922,800
2025-11-14$1.68$1.6835,200
2025-11-13$1.67$1.6769,100
2025-11-12$1.68$1.6811,800
2025-11-11$1.59$1.5911,800
2025-11-10$1.62$1.62109,800
2025-11-07$1.59$1.5910,400
2025-11-06$1.64$1.6433,100
2025-11-05$1.62$1.6236,200
2025-11-04$1.60$1.6029,200
2025-11-03$1.70$1.7030,800
2025-10-31$1.69$1.6951,100
2025-10-30$1.71$1.71105,200
2025-10-29$1.77$1.7738,600
2025-10-28$1.81$1.8125,000
2025-10-27$1.76$1.767,900
2025-10-24$1.77$1.7710,800
2025-10-23$1.72$1.7216,100
2025-10-22$1.72$1.7216,100
2025-10-21$1.78$1.78125,700
2025-10-20$1.73$1.73144,800
2025-10-17$1.83$1.83119,100
2025-10-16$1.70$1.706,600
2025-10-15$1.68$1.6862,900
2025-10-14$1.71$1.7159,600
2025-10-13$1.55$1.5514,100
2025-10-10$1.68$1.6820,000
2025-10-09$1.71$1.719,700
2025-10-08$1.74$1.7412,000
2025-10-07$1.70$1.7024,700
2025-10-06$1.67$1.6717,200
2025-10-03$1.66$1.6611,500
2025-10-02$1.69$1.695,300
2025-10-01$1.70$1.7018,400
2025-09-30$1.67$1.678,200
2025-09-29$1.70$1.706,100
2025-09-26$1.74$1.7417,600
2025-09-25$1.66$1.666,500
2025-09-24$1.70$1.7014,700
2025-09-23$1.74$1.742,500
2025-09-22$1.72$1.7215,900
2025-09-19$1.78$1.7826,000
2025-09-18$1.67$1.6722,300
2025-09-17$1.71$1.7113,100
2025-09-16$1.74$1.7449,300
2025-09-15$1.65$1.6531,800
2025-09-12$1.59$1.5947,000
2025-09-11$1.47$1.474,600
2025-09-10$1.50$1.5031,400
2025-09-09$1.46$1.468,600
2025-09-08$1.47$1.476,400
2025-09-05$1.46$1.4610,800
2025-09-04$1.46$1.4648,200
2025-09-03$1.49$1.4916,400
2025-09-02$1.46$1.4617,900
2025-08-29$1.45$1.459,200
2025-08-28$1.45$1.455,500
2025-08-27$1.46$1.4615,900
2025-08-26$1.46$1.4626,500
2025-08-25$1.48$1.4835,500
2025-08-22$1.46$1.4610,600
2025-08-21$1.40$1.4023,900
2025-08-20$1.40$1.4017,100
2025-08-19$1.40$1.4010,000
2025-08-18$1.43$1.4337,700
2025-08-15$1.48$1.4815,100
2025-08-14$1.45$1.4526,300
2025-08-13$1.50$1.5045,000
2025-08-12$1.46$1.46336,500
2025-08-11$1.38$1.3887,000
2025-08-08$1.40$1.4027,200
2025-08-07$1.36$1.362,800
2025-08-06$1.38$1.3825,300
2025-08-05$1.40$1.4084,200
2025-08-04$1.50$1.5027,600
2025-08-01$1.48$1.4838,100
2025-07-31$1.54$1.5419,200
2025-07-30$1.52$1.5296,800
2025-07-29$1.54$1.5483,100
2025-07-28$1.62$1.6256,700
2025-07-25$1.59$1.5913,300
2025-07-24$1.67$1.6747,300
2025-07-23$1.60$1.6019,600
2025-07-22$1.60$1.6048,600
2025-07-21$1.68$1.68237,500
2025-07-18$1.74$1.74286,500
2025-07-17$1.69$1.69314,400
2025-07-16$1.51$1.51228,900
2025-07-15$1.32$1.32390,400
2025-07-14$1.24$1.2412,800
2025-07-11$1.21$1.212,100
2025-07-10$1.24$1.243,100
2025-07-09$1.24$1.241,800
2025-07-08$1.19$1.198,100
2025-07-07$1.19$1.1913,100
2025-07-03$1.18$1.1818,800
2025-07-02$1.20$1.203,700
2025-07-01$1.18$1.1810,600
2025-06-30$1.27$1.274,100
2025-06-27$1.24$1.247,400
2025-06-26$1.22$1.223,100
2025-06-25$1.20$1.203,000
2025-06-24$1.19$1.19900
2025-06-23$1.17$1.1724,400
2025-06-20$1.26$1.264,600
2025-06-18$1.21$1.213,900
2025-06-17$1.24$1.242,200
2025-06-16$1.21$1.212,400
2025-06-13$1.25$1.25900
2025-06-12$1.23$1.234,300
2025-06-11$1.22$1.2218,000
2025-06-10$1.29$1.294,000
2025-06-09$1.27$1.2710,900
2025-06-06$1.21$1.218,900
2025-06-05$1.22$1.223,000
2025-06-04$1.23$1.2318,800
2025-06-03$1.17$1.174,900
2025-06-02$1.19$1.1935,100
2025-05-30$1.15$1.15300
2025-05-29$1.15$1.152,700
2025-05-28$1.14$1.1431,000
2025-05-27$1.15$1.1512,500
2025-05-23$1.13$1.132,600
2025-05-22$1.11$1.112,200
2025-05-21$1.14$1.146,400
2025-05-20$1.13$1.1315,300
2025-05-19$1.08$1.08300
2025-05-16$1.08$1.086,600
2025-05-15$1.14$1.142,600
2025-05-14$1.11$1.1133,500
2025-05-13$1.10$1.1011,500
2025-05-12$1.13$1.1344,500
2025-05-09$1.12$1.127,000
2025-05-08$1.18$1.183,700
2025-05-07$1.12$1.1217,300
2025-05-06$1.17$1.1722,000
2025-05-05$1.17$1.1725,500
2025-05-02$1.20$1.202,000
2025-05-01$1.14$1.140
2025-04-30$1.14$1.144,000
2025-04-29$1.15$1.153,800
2025-04-28$1.12$1.129,800
2025-04-25$1.16$1.163,400
2025-04-24$1.16$1.162,300
2025-04-23$1.15$1.154,100
2025-04-22$1.12$1.1218,900
2025-04-21$1.06$1.0610,100
2025-04-17$1.06$1.066,000
2025-04-16$1.01$1.017,500
2025-04-15$1.08$1.081,100
2025-04-14$1.10$1.108,600
2025-04-11$1.03$1.031,800
2025-04-10$1.06$1.065,100
2025-04-09$1.03$1.0325,800
2025-04-08$0.97$0.9776,300
2025-04-07$1.08$1.089,700
2025-04-04$1.08$1.0819,800
2025-04-03$1.16$1.1614,100
2025-04-02$1.20$1.2019,500
2025-04-01$1.22$1.228,200
2025-03-31$1.24$1.2428,900
2025-03-28$1.28$1.285,600
2025-03-27$1.28$1.281,100
2025-03-26$1.30$1.301,000
2025-03-25$1.30$1.301,000
2025-03-24$1.32$1.32800
2025-03-21$1.30$1.306,600
2025-03-20$1.30$1.302,000
2025-03-19$1.33$1.331,800
2025-03-18$1.31$1.313,600
2025-03-17$1.33$1.336,100
2025-03-14$1.26$1.261,700
2025-03-13$1.20$1.209,600
2025-03-12$1.24$1.241,100
2025-03-11$1.23$1.2316,300
2025-03-10$1.26$1.266,700
2025-03-07$1.32$1.323,700
2025-03-06$1.31$1.311,100
2025-03-05$1.28$1.283,500
2025-03-04$1.31$1.3111,600
2025-03-03$1.34$1.344,200
2025-02-28$1.37$1.37800
2025-02-27$1.40$1.4016,700
2025-02-26$1.38$1.382,100
2025-02-25$1.38$1.3828,000
2025-02-24$1.40$1.401,800
2025-02-21$1.36$1.364,600
2025-02-20$1.41$1.415,000
2025-02-19$1.39$1.3926,800
2025-02-18$1.37$1.3715,900
2025-02-14$1.40$1.4011,100
2025-02-13$1.40$1.4036,700
2025-02-12$1.36$1.363,900
2025-02-11$1.34$1.3461,800
2025-02-10$1.35$1.357,400
2025-02-07$1.34$1.343,100
2025-02-06$1.35$1.356,400
2025-02-05$1.34$1.344,700
2025-02-04$1.32$1.3213,300
2025-02-03$1.32$1.3244,800
2025-01-31$1.39$1.3915,300
2025-01-30$1.40$1.407,600
2025-01-29$1.43$1.4356,000
2025-01-28$1.41$1.412,400
2025-01-27$1.42$1.4226,400
2025-01-24$1.43$1.4326,000
2025-01-23$1.41$1.4121,500
2025-01-22$1.43$1.4324,000
2025-01-21$1.44$1.4411,900
2025-01-17$1.46$1.4616,000
2025-01-16$1.45$1.4514,000
2025-01-15$1.46$1.4612,900
2025-01-14$1.44$1.4433,800
2025-01-13$1.42$1.4216,200
2025-01-10$1.47$1.4773,600
2025-01-08$1.50$1.5028,200
2025-01-07$1.44$1.4411,600
2025-01-06$1.42$1.4213,100
2025-01-03$1.45$1.455,400
2025-01-02$1.42$1.4215,800