NASDAQ:BOLD | Historical Stock Price | Boundless 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
2024-03-28 to 2026-09-04
Data captured

Stock Price Chart

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

$0.96$1.66$2.88$4.99$8.64$14.962024-03-282026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

View year

Historical Stock Price — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$1.20$1.20100,800
2025-12-30$1.20$1.2038,000
2025-12-29$1.20$1.2045,900
2025-12-26$1.20$1.2025,600
2025-12-24$1.21$1.2170,300
2025-12-23$1.21$1.2199,800
2025-12-22$1.23$1.2393,100
2025-12-19$1.22$1.2288,700
2025-12-18$1.27$1.27503,900
2025-12-17$1.27$1.27367,200
2025-12-16$1.14$1.1430,100
2025-12-15$1.14$1.14104,800
2025-12-12$1.17$1.1745,900
2025-12-11$1.15$1.1572,400
2025-12-10$1.16$1.16110,500
2025-12-09$1.18$1.18130,200
2025-12-08$1.14$1.14171,600
2025-12-05$1.14$1.14268,700
2025-12-04$1.10$1.10503,200
2025-12-03$1.08$1.08150,200
2025-12-02$1.09$1.09132,300
2025-12-01$1.09$1.09181,700
2025-11-28$1.17$1.1789,800
2025-11-26$1.11$1.111,348,200
2025-11-25$1.11$1.11116,400
2025-11-24$1.11$1.11111,000
2025-11-21$1.13$1.13181,400
2025-11-20$1.11$1.1141,500
2025-11-19$1.15$1.1590,700
2025-11-18$1.19$1.19134,400
2025-11-17$1.18$1.1891,300
2025-11-14$1.24$1.2479,800
2025-11-13$1.20$1.2030,900
2025-11-12$1.23$1.2344,300
2025-11-11$1.26$1.2693,900
2025-11-10$1.21$1.2144,500
2025-11-07$1.23$1.23179,600
2025-11-06$1.26$1.2642,800
2025-11-05$1.26$1.2648,300
2025-11-04$1.30$1.3064,000
2025-11-03$1.37$1.3757,300
2025-10-31$1.40$1.40114,500
2025-10-30$1.38$1.3876,200
2025-10-29$1.43$1.4385,100
2025-10-28$1.46$1.4686,400
2025-10-27$1.49$1.4932,100
2025-10-24$1.46$1.46126,800
2025-10-23$1.41$1.41266,400
2025-10-22$1.51$1.51145,700
2025-10-21$1.49$1.49194,600
2025-10-20$1.40$1.40200,100
2025-10-17$1.37$1.37129,100
2025-10-16$1.41$1.41544,600
2025-10-15$1.32$1.32175,700
2025-10-14$1.32$1.32391,800
2025-10-13$1.30$1.3057,900
2025-10-10$1.27$1.2769,200
2025-10-09$1.28$1.28159,000
2025-10-08$1.30$1.30425,400
2025-10-07$1.23$1.2347,100
2025-10-06$1.24$1.2470,800
2025-10-03$1.23$1.23139,500
2025-10-02$1.21$1.21209,800
2025-10-01$1.23$1.23163,600
2025-09-30$1.23$1.23275,600
2025-09-29$1.20$1.20502,500
2025-09-26$1.14$1.14106,900
2025-09-25$1.13$1.1371,700
2025-09-24$1.15$1.1564,400
2025-09-23$1.13$1.1387,000
2025-09-22$1.13$1.1395,800
2025-09-19$1.14$1.14116,400
2025-09-18$1.14$1.1431,400
2025-09-17$1.14$1.1429,000
2025-09-16$1.15$1.1549,900
2025-09-15$1.15$1.1566,800
2025-09-12$1.15$1.15117,100
2025-09-11$1.16$1.1691,500
2025-09-10$1.16$1.1697,100
2025-09-09$1.15$1.1523,300
2025-09-08$1.15$1.1550,800
2025-09-05$1.15$1.1553,800
2025-09-04$1.13$1.139,800
2025-09-03$1.15$1.15149,900
2025-09-02$1.15$1.1561,100
2025-08-29$1.12$1.1217,900
2025-08-28$1.14$1.1426,100
2025-08-27$1.14$1.1438,400
2025-08-26$1.14$1.1485,200
2025-08-25$1.13$1.1389,700
2025-08-22$1.17$1.17116,100
2025-08-21$1.14$1.14105,100
2025-08-20$1.14$1.1441,800
2025-08-19$1.11$1.11273,100
2025-08-18$1.17$1.1782,300
2025-08-15$1.16$1.1666,400
2025-08-14$1.17$1.1718,200
2025-08-13$1.17$1.1790,500
2025-08-12$1.12$1.1254,200
2025-08-11$1.11$1.1130,300
2025-08-08$1.08$1.0866,700
2025-08-07$1.14$1.1484,100
2025-08-06$1.18$1.1837,800
2025-08-05$1.18$1.1874,600
2025-08-04$1.20$1.2045,700
2025-08-01$1.16$1.1671,000
2025-07-31$1.19$1.1925,300
2025-07-30$1.19$1.19105,700
2025-07-29$1.19$1.19115,700
2025-07-28$1.24$1.2494,900
2025-07-25$1.27$1.27225,400
2025-07-24$1.25$1.25161,600
2025-07-23$1.24$1.24148,700
2025-07-22$1.19$1.1984,500
2025-07-21$1.15$1.1531,300
2025-07-18$1.21$1.2158,900
2025-07-17$1.18$1.1858,800
2025-07-16$1.14$1.14150,700
2025-07-15$1.12$1.12105,400
2025-07-14$1.15$1.1569,500
2025-07-11$1.19$1.19105,200
2025-07-10$1.18$1.18168,700
2025-07-09$1.16$1.16200,800
2025-07-08$1.10$1.1019,800
2025-07-07$1.09$1.09142,000
2025-07-03$1.07$1.0756,100
2025-07-02$1.06$1.0647,100
2025-07-01$1.06$1.06102,900
2025-06-30$1.01$1.01130,100
2025-06-27$1.01$1.011,945,600
2025-06-26$1.07$1.07407,700
2025-06-25$1.07$1.07131,300
2025-06-24$1.08$1.081,134,900
2025-06-23$1.03$1.03349,100
2025-06-20$1.04$1.04213,400
2025-06-18$1.04$1.0435,400
2025-06-17$1.05$1.05108,400
2025-06-16$1.09$1.09104,600
2025-06-13$1.05$1.05122,100
2025-06-12$1.09$1.09203,600
2025-06-11$1.06$1.06240,200
2025-06-10$1.07$1.071,373,700
2025-06-09$1.10$1.10390,300
2025-06-06$1.18$1.18112,100
2025-06-05$1.17$1.1763,300
2025-06-04$1.18$1.18110,400
2025-06-03$1.12$1.1259,000
2025-06-02$1.13$1.1352,100
2025-05-30$1.10$1.10164,300
2025-05-29$1.17$1.17142,000
2025-05-28$1.20$1.20202,300
2025-05-27$1.30$1.30345,900
2025-05-23$1.54$1.5447,200
2025-05-22$1.56$1.5625,300
2025-05-21$1.66$1.6642,800
2025-05-20$1.66$1.6622,500
2025-05-19$1.69$1.6933,100
2025-05-16$1.65$1.6527,400
2025-05-15$1.69$1.6990,000
2025-05-14$1.49$1.4926,800
2025-05-13$1.55$1.5521,900
2025-05-12$1.49$1.4932,900
2025-05-09$1.44$1.4442,700
2025-05-08$1.50$1.5028,600
2025-05-07$1.53$1.53100,900
2025-05-06$1.61$1.6186,800
2025-05-05$1.57$1.5764,100
2025-05-02$1.61$1.6122,900
2025-05-01$1.61$1.6153,200
2025-04-30$1.76$1.76131,600
2025-04-29$1.60$1.6053,300
2025-04-28$1.45$1.4532,000
2025-04-25$1.47$1.4739,400
2025-04-24$1.54$1.5432,600
2025-04-23$1.58$1.5851,700
2025-04-22$1.46$1.4677,100
2025-04-21$1.40$1.40144,700
2025-04-17$1.42$1.4264,600
2025-04-16$1.31$1.3137,900
2025-04-15$1.35$1.3559,600
2025-04-14$1.24$1.2441,000
2025-04-11$1.22$1.2287,400
2025-04-10$1.19$1.1954,900
2025-04-09$1.20$1.20159,500
2025-04-08$1.10$1.1097,500
2025-04-07$1.20$1.20123,200
2025-04-04$1.30$1.3053,900
2025-04-03$1.38$1.3868,400
2025-04-02$1.49$1.4939,900
2025-04-01$1.45$1.4553,700
2025-03-31$1.51$1.5160,400
2025-03-28$1.50$1.5023,800
2025-03-27$1.51$1.5178,800
2025-03-26$1.52$1.52135,200
2025-03-25$1.60$1.6026,200
2025-03-24$1.72$1.7231,500
2025-03-21$1.76$1.7694,600
2025-03-20$1.57$1.5721,000
2025-03-19$1.57$1.5723,100
2025-03-18$1.60$1.6056,300
2025-03-17$1.68$1.6845,600
2025-03-14$1.68$1.6838,500
2025-03-13$1.62$1.6289,000
2025-03-12$1.70$1.7052,400
2025-03-11$1.60$1.60139,100
2025-03-10$1.63$1.63242,200
2025-03-07$1.69$1.6997,700
2025-03-06$1.70$1.7086,600
2025-03-05$1.70$1.70212,700
2025-03-04$1.73$1.73147,500
2025-03-03$1.73$1.73122,000
2025-02-28$1.93$1.9385,800
2025-02-27$1.90$1.9072,800
2025-02-26$1.92$1.9266,700
2025-02-25$1.84$1.8484,500
2025-02-24$1.93$1.9334,900
2025-02-21$1.96$1.96329,100
2025-02-20$2.00$2.0035,100
2025-02-19$2.02$2.0277,400
2025-02-18$2.11$2.1169,300
2025-02-14$2.24$2.2443,900
2025-02-13$2.24$2.2424,300
2025-02-12$2.20$2.2043,000
2025-02-11$2.18$2.1820,700
2025-02-10$2.26$2.2625,900
2025-02-07$2.22$2.2236,500
2025-02-06$2.36$2.3625,800
2025-02-05$2.50$2.5031,900
2025-02-04$2.19$2.1923,900
2025-02-03$2.23$2.2321,900
2025-01-31$2.29$2.2960,000
2025-01-30$2.44$2.4421,100
2025-01-29$2.46$2.4618,100
2025-01-28$2.44$2.4424,000
2025-01-27$2.35$2.3522,400
2025-01-24$2.41$2.4145,600
2025-01-23$2.54$2.5433,800
2025-01-22$2.57$2.5745,600
2025-01-21$2.57$2.57170,800
2025-01-17$2.53$2.53139,100
2025-01-16$2.54$2.54261,300
2025-01-15$2.49$2.4996,500
2025-01-14$2.30$2.3089,800
2025-01-13$2.25$2.2586,800
2025-01-10$2.42$2.4265,500
2025-01-08$2.50$2.5031,900
2025-01-07$2.62$2.6244,200
2025-01-06$2.70$2.7050,800
2025-01-03$2.68$2.6843,100
2025-01-02$2.73$2.7369,300