NASDAQ:GOSS | Historical Stock Price | Gossamer Bio, 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
2019-02-08 to 2026-09-04
Data captured

Stock Price Chart

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

$0.14$0.39$1.15$3.33$9.68$28.132019-02-082026-08-27

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 volumeOpen priceExchange Volume
2025-12-31$3.10$3.103,446,100
2025-12-30$3.12$3.124,106,000
2025-12-29$3.21$3.214,114,200
2025-12-26$3.23$3.234,371,100
2025-12-24$3.44$3.443,250,000
2025-12-23$3.29$3.295,665,700
2025-12-22$3.77$3.774,263,200
2025-12-19$3.44$3.4415,018,800
2025-12-18$3.43$3.434,536,800
2025-12-17$3.57$3.573,704,600
2025-12-16$3.56$3.564,856,700
2025-12-15$3.79$3.798,630,500
2025-12-12$3.60$3.603,479,500
2025-12-11$3.62$3.624,286,600
2025-12-10$3.49$3.493,054,000
2025-12-09$3.45$3.451,647,500
2025-12-08$3.41$3.411,842,100
2025-12-05$3.33$3.332,223,500
2025-12-04$3.32$3.322,191,700
2025-12-03$3.42$3.424,711,500
2025-12-02$2.99$2.993,665,600
2025-12-01$3.14$3.143,601,200
2025-11-28$3.34$3.341,137,300
2025-11-26$3.34$3.341,718,500
2025-11-25$3.27$3.272,389,600
2025-11-24$3.18$3.182,735,000
2025-11-21$3.06$3.062,742,500
2025-11-20$3.11$3.112,952,000
2025-11-19$3.14$3.143,058,700
2025-11-18$3.05$3.052,897,700
2025-11-17$2.99$2.996,266,500
2025-11-14$2.71$2.712,785,200
2025-11-13$2.51$2.512,324,400
2025-11-12$2.70$2.703,419,300
2025-11-11$2.59$2.592,299,900
2025-11-10$2.48$2.484,072,700
2025-11-07$2.36$2.362,091,500
2025-11-06$2.31$2.312,346,800
2025-11-05$2.37$2.372,292,300
2025-11-04$2.30$2.301,937,200
2025-11-03$2.39$2.392,493,800
2025-10-31$2.45$2.452,163,300
2025-10-30$2.42$2.422,166,400
2025-10-29$2.39$2.392,353,200
2025-10-28$2.38$2.381,558,700
2025-10-27$2.39$2.393,831,100
2025-10-24$2.48$2.487,741,800
2025-10-23$2.09$2.092,981,800
2025-10-22$2.21$2.212,574,000
2025-10-21$2.18$2.184,084,400
2025-10-20$2.27$2.272,302,400
2025-10-17$2.19$2.192,998,200
2025-10-16$2.31$2.312,828,100
2025-10-15$2.41$2.412,380,800
2025-10-14$2.38$2.382,259,600
2025-10-13$2.44$2.443,016,800
2025-10-10$2.28$2.284,325,600
2025-10-09$2.56$2.563,038,400
2025-10-08$2.42$2.422,808,500
2025-10-07$2.50$2.502,640,700
2025-10-06$2.41$2.414,064,400
2025-10-03$2.57$2.572,797,500
2025-10-02$2.48$2.484,192,500
2025-10-01$2.49$2.494,410,100
2025-09-30$2.63$2.634,702,200
2025-09-29$2.82$2.822,766,600
2025-09-26$2.70$2.703,931,500
2025-09-25$2.78$2.788,591,900
2025-09-24$2.99$2.993,112,300
2025-09-23$3.08$3.082,711,500
2025-09-22$3.16$3.164,354,200
2025-09-19$3.05$3.055,112,800
2025-09-18$3.08$3.083,632,300
2025-09-17$2.99$2.994,804,900
2025-09-16$3.20$3.203,468,100
2025-09-15$3.18$3.184,135,200
2025-09-12$3.46$3.464,242,200
2025-09-11$3.46$3.467,309,700
2025-09-10$3.11$3.1111,229,900
2025-09-09$2.77$2.772,715,100
2025-09-08$2.66$2.665,557,400
2025-09-05$2.94$2.947,657,000
2025-09-04$2.51$2.513,365,600
2025-09-03$2.58$2.583,305,000
2025-09-02$2.59$2.597,656,400
2025-08-29$2.47$2.472,537,700
2025-08-28$2.40$2.404,268,400
2025-08-27$2.46$2.464,258,700
2025-08-26$2.53$2.533,556,200
2025-08-25$2.36$2.363,156,200
2025-08-22$2.34$2.344,899,200
2025-08-21$2.17$2.174,527,900
2025-08-20$1.95$1.951,112,100
2025-08-19$1.92$1.921,185,400
2025-08-18$1.99$1.991,533,300
2025-08-15$1.96$1.961,731,000
2025-08-14$1.96$1.961,413,100
2025-08-13$1.97$1.972,942,700
2025-08-12$1.93$1.932,208,300
2025-08-11$1.74$1.742,488,000
2025-08-08$1.76$1.763,070,000
2025-08-07$1.74$1.743,782,300
2025-08-06$1.98$1.983,966,400
2025-08-05$2.16$2.163,076,000
2025-08-04$2.17$2.175,912,500
2025-08-01$2.00$2.002,686,100
2025-07-31$2.04$2.042,993,700
2025-07-30$2.08$2.083,907,000
2025-07-29$1.96$1.964,161,000
2025-07-28$1.98$1.983,564,900
2025-07-25$1.84$1.842,094,300
2025-07-24$1.78$1.783,386,400
2025-07-23$1.87$1.875,333,200
2025-07-22$1.72$1.722,415,400
2025-07-21$1.75$1.752,411,800
2025-07-18$1.70$1.703,184,800
2025-07-17$1.71$1.716,208,700
2025-07-16$1.66$1.664,194,000
2025-07-15$1.45$1.452,056,700
2025-07-14$1.53$1.533,975,300
2025-07-11$1.36$1.36696,000
2025-07-10$1.36$1.361,045,000
2025-07-09$1.36$1.361,566,900
2025-07-08$1.27$1.271,008,300
2025-07-07$1.25$1.251,294,000
2025-07-03$1.24$1.24433,000
2025-07-02$1.21$1.211,177,900
2025-07-01$1.25$1.252,391,500
2025-06-30$1.23$1.232,018,500
2025-06-27$1.25$1.2526,071,300
2025-06-26$1.30$1.301,256,000
2025-06-25$1.36$1.361,304,700
2025-06-24$1.38$1.381,087,200
2025-06-23$1.37$1.372,211,700
2025-06-20$1.44$1.442,264,800
2025-06-18$1.29$1.29693,200
2025-06-17$1.24$1.24916,700
2025-06-16$1.28$1.281,607,000
2025-06-13$1.24$1.241,126,100
2025-06-12$1.27$1.271,038,500
2025-06-11$1.29$1.291,670,900
2025-06-10$1.25$1.251,491,500
2025-06-09$1.33$1.33981,300
2025-06-06$1.33$1.331,428,200
2025-06-05$1.26$1.26716,500
2025-06-04$1.26$1.261,430,600
2025-06-03$1.22$1.221,436,500
2025-06-02$1.16$1.161,591,100
2025-05-30$1.11$1.111,078,200
2025-05-29$1.13$1.131,001,400
2025-05-28$1.16$1.16840,100
2025-05-27$1.12$1.121,187,200
2025-05-23$1.20$1.201,930,900
2025-05-22$1.16$1.162,424,500
2025-05-21$1.15$1.152,390,800
2025-05-20$1.18$1.182,336,000
2025-05-19$1.09$1.091,657,800
2025-05-16$1.04$1.042,043,700
2025-05-15$1.05$1.051,740,600
2025-05-14$1.01$1.011,358,700
2025-05-13$1.09$1.09773,400
2025-05-12$1.10$1.10981,400
2025-05-09$1.11$1.11998,300
2025-05-08$1.12$1.12958,500
2025-05-07$1.10$1.10743,300
2025-05-06$1.09$1.092,005,900
2025-05-05$1.25$1.252,191,700
2025-05-02$1.18$1.182,628,000
2025-05-01$1.06$1.061,787,500
2025-04-30$1.02$1.023,278,200
2025-04-29$0.88$0.88588,400
2025-04-28$0.88$0.881,410,700
2025-04-25$0.96$0.962,464,600
2025-04-24$0.98$0.981,543,200
2025-04-23$0.90$0.902,338,900
2025-04-22$0.83$0.832,364,700
2025-04-21$0.81$0.811,601,800
2025-04-17$0.84$0.84677,500
2025-04-16$0.83$0.83980,100
2025-04-15$0.83$0.83949,800
2025-04-14$0.81$0.81804,200
2025-04-11$0.83$0.83611,000
2025-04-10$0.78$0.781,673,100
2025-04-09$0.88$0.881,724,500
2025-04-08$0.79$0.791,826,100
2025-04-07$0.82$0.822,315,700
2025-04-04$0.80$0.802,788,600
2025-04-03$0.94$0.941,272,600
2025-04-02$0.98$0.981,654,100
2025-04-01$0.99$0.992,372,300
2025-03-31$1.10$1.101,495,500
2025-03-28$1.17$1.171,113,700
2025-03-27$1.16$1.161,700,600
2025-03-26$1.18$1.181,544,900
2025-03-25$1.28$1.281,109,100
2025-03-24$1.28$1.281,588,400
2025-03-21$1.39$1.391,070,400
2025-03-20$1.35$1.351,157,200
2025-03-19$1.36$1.361,107,100
2025-03-18$1.42$1.422,647,500
2025-03-17$1.39$1.391,812,200
2025-03-14$1.45$1.452,546,600
2025-03-13$1.30$1.301,411,700
2025-03-12$1.34$1.342,009,900
2025-03-11$1.22$1.221,087,700
2025-03-10$1.15$1.151,288,000
2025-03-07$1.21$1.211,137,600
2025-03-06$1.22$1.221,447,300
2025-03-05$1.18$1.181,625,200
2025-03-04$1.13$1.131,378,600
2025-03-03$1.18$1.181,014,800
2025-02-28$1.23$1.231,472,000
2025-02-27$1.19$1.191,992,900
2025-02-26$1.30$1.301,673,000
2025-02-25$1.26$1.262,043,000
2025-02-24$1.30$1.302,174,200
2025-02-21$1.40$1.401,591,700
2025-02-20$1.53$1.532,109,400
2025-02-19$1.42$1.422,277,900
2025-02-18$1.38$1.382,189,300
2025-02-14$1.31$1.312,102,900
2025-02-13$1.31$1.313,122,000
2025-02-12$1.27$1.272,952,500
2025-02-11$1.24$1.241,950,600
2025-02-10$1.17$1.172,230,500
2025-02-07$1.06$1.06693,300
2025-02-06$1.11$1.111,669,700
2025-02-05$1.15$1.153,078,500
2025-02-04$1.02$1.02921,300
2025-02-03$1.03$1.031,131,300
2025-01-31$0.99$0.99869,900
2025-01-30$0.96$0.96700,900
2025-01-29$0.92$0.92490,300
2025-01-28$0.92$0.92326,100
2025-01-27$0.91$0.91621,000
2025-01-24$0.93$0.93649,200
2025-01-23$0.89$0.89494,000
2025-01-22$0.90$0.90656,500
2025-01-21$0.92$0.92799,700
2025-01-17$0.96$0.96819,000
2025-01-16$1.00$1.00846,500
2025-01-15$0.93$0.921,094,600
2025-01-14$0.85$0.85772,100
2025-01-13$0.92$0.92743,000
2025-01-10$0.97$0.97812,500
2025-01-08$1.05$1.051,330,200
2025-01-07$1.11$1.111,393,900
2025-01-06$1.09$1.092,952,600
2025-01-03$1.02$1.021,441,900
2025-01-02$0.97$0.971,300,900