NASDAQ:ICU | Historical Stock Price | SeaStar Medical Holding Corp

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
2021-03-18 to 2026-09-04
Data captured

Stock Price Chart

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

$2.12$9.18$39.80$172.54$747.90$3,241.882021-03-182026-08-27

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

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Historical Stock Price — 2026

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04———$2.93235
2026-09-03———$2.84228
2026-09-02———$3.01223
2026-09-01———$3.03768
2026-08-31———$3.08647
2026-08-28———$3.13587
2026-08-27$3.10$3.1051,600$3.16315
2026-08-26$3.12$3.1256,700$3.21517
2026-08-25$3.18$3.1849,200$3.281,491
2026-08-24$3.19$3.1955,900$3.46983
2026-08-21$3.35$3.3568,700$3.35629
2026-08-20$3.34$3.3456,000$3.36893
2026-08-19$3.27$3.2765,600$3.342,389
2026-08-18$3.34$3.3430,500$3.29372
2026-08-17$3.25$3.2544,200$3.23395
2026-08-14$3.18$3.1858,800$3.16147
2026-08-13$3.17$3.1795,700$3.211,178
2026-08-12$3.36$3.36159,200$3.533,323
2026-08-11$3.69$3.6998,700$3.732,384
2026-08-10$3.69$3.69205,200$3.472,503
2026-08-07$3.28$3.2862,400$3.061,291
2026-08-06$3.05$3.0547,500$3.07901
2026-08-05$3.02$3.0284,600$3.042,123
2026-08-04$3.19$3.1966,500$3.221,340
2026-08-03$3.20$3.2047,000$3.22909
2026-07-31$3.13$3.1384,700$3.245,327
2026-07-30$3.18$3.1848,700$3.271,834
2026-07-29$3.25$3.2561,500$3.432,384
2026-07-28$3.44$3.4439,900$3.51833
2026-07-27$3.57$3.5766,300$3.831,677
2026-07-24$3.75$3.7578,500$3.73579
2026-07-23$3.74$3.7468,700$3.90842
2026-07-22$3.89$3.8930,000$3.94565
2026-07-21$3.86$3.8651,700$3.841,359
2026-07-20$3.85$3.8536,700$3.85940
2026-07-17$4.00$4.0077,100——
2026-07-16$4.22$4.2288,100——
2026-07-15$4.62$4.6242,800——
2026-07-14$4.80$4.8066,900——
2026-07-13$4.79$4.7949,200——
2026-07-10$4.95$4.9591,700——
2026-07-09$4.90$4.9065,300——
2026-07-08$5.08$5.08108,500——
2026-07-07$5.07$5.07171,600——
2026-07-06$4.76$4.76134,300——
2026-07-02$4.92$4.92279,100——
2026-07-01$4.86$4.86496,900——
2026-06-30$3.67$3.6750,000——
2026-06-29$3.55$3.55158,300——
2026-06-26$3.12$3.1239,100——
2026-06-25$2.98$2.9852,600——
2026-06-24$3.09$3.09160,900——
2026-06-23$3.47$3.4798,000——
2026-06-22$3.24$3.2459,600——
2026-06-18$3.12$3.1242,400——
2026-06-17$3.06$3.0651,000——
2026-06-16$3.04$3.0442,600——
2026-06-15$3.13$3.13109,700——
2026-06-12$2.98$2.98168,900——
2026-06-11$2.73$2.73107,400——
2026-06-10$2.63$2.6387,800——
2026-06-09$2.78$2.78106,100——
2026-06-08$2.90$2.9094,000——
2026-06-05$2.94$2.94103,600——
2026-06-04$3.13$3.13121,800——
2026-06-03$3.28$3.28101,600——
2026-06-02$3.53$3.5362,200——
2026-06-01$3.64$3.6474,000——
2026-05-29$3.71$3.7178,800——
2026-05-28$3.66$3.6674,800——
2026-05-27$3.59$3.5956,600——
2026-05-26$3.58$3.58110,100——
2026-05-22$3.75$3.75137,100——
2026-05-21$3.96$3.9644,300——
2026-05-20$3.97$3.9755,700——
2026-05-19$3.89$3.8936,100——
2026-05-18$4.00$4.0024,200——
2026-05-15$3.95$3.9565,200——
2026-05-14$4.20$4.20169,700——
2026-05-13$4.60$4.6073,800——
2026-05-12$4.84$4.8477,100——
2026-05-11$4.58$4.5837,700——
2026-05-08$4.49$4.4986,400——
2026-05-07$4.86$4.8680,500——
2026-05-06$4.87$4.87165,300——
2026-05-05$4.42$4.4238,100——
2026-05-04$4.33$4.3381,400——
2026-05-01$4.37$4.37111,600——
2026-04-30$4.14$4.1450,100——
2026-04-29$3.87$3.8754,000——
2026-04-28$3.92$3.9228,200——
2026-04-27$3.81$3.8185,300——
2026-04-24$4.13$4.13133,900——
2026-04-23$4.24$4.2453,200——
2026-04-22$4.46$4.4673,700——
2026-04-21$4.29$4.2973,400——
2026-04-20$4.63$4.6399,700——
2026-04-17$4.20$4.20263,100——
2026-04-16$4.16$4.1683,800——
2026-04-15$3.86$3.8673,600——
2026-04-14$3.75$3.75138,000——
2026-04-13$4.21$4.2178,100——
2026-04-10$3.71$3.71166,200——
2026-04-09$4.06$4.0671,800——
2026-04-08$4.18$4.1864,600——
2026-04-07$4.17$4.17241,700——
2026-04-06$4.58$4.58346,300——
2026-04-02$4.31$4.31422,900——
2026-04-01$3.56$3.56121,300——
2026-03-31$3.72$3.72544,700——
2026-03-30$3.62$3.621,798,700——
2026-03-27$2.74$2.74144,900——
2026-03-26$2.79$2.79578,100——
2026-03-25$2.28$2.28156,500——
2026-03-24$2.24$2.24177,000——
2026-03-23$2.21$2.2153,700——
2026-03-20$2.23$2.23125,700——
2026-03-19$2.27$2.2764,000——
2026-03-18$2.35$2.3558,900——
2026-03-17$2.48$2.4828,800——
2026-03-16$2.40$2.40114,200——
2026-03-13$2.56$2.5661,200——
2026-03-12$2.64$2.6469,200——
2026-03-11$2.77$2.7771,600——
2026-03-10$2.69$2.6942,400——
2026-03-09$2.64$2.6428,300——
2026-03-06$2.52$2.5239,700——
2026-03-05$2.58$2.5876,800——
2026-03-04$2.51$2.5148,700——
2026-03-03$2.56$2.5655,100——
2026-03-02$2.71$2.7191,000——
2026-02-27$2.76$2.7681,300——
2026-02-26$2.74$2.7451,100——
2026-02-25$2.47$2.4738,000——
2026-02-24$2.38$2.3833,000——
2026-02-23$2.38$2.3878,700——
2026-02-20$2.44$2.4428,400——
2026-02-19$2.41$2.4137,600——
2026-02-18$2.45$2.4558,900——
2026-02-17$2.42$2.4243,600——
2026-02-13$2.40$2.4028,800——
2026-02-12$2.31$2.3169,600——
2026-02-11$2.34$2.3459,200——
2026-02-10$2.36$2.3642,200——
2026-02-09$2.43$2.43604,300——
2026-02-06$2.48$2.4852,700——
2026-02-05$2.41$2.4144,400——
2026-02-04$2.57$2.5785,000——
2026-02-03$2.45$2.4567,900——
2026-02-02$2.52$2.5289,700——
2026-01-30$2.38$2.38168,400——
2026-01-29$2.34$2.3489,800——
2026-01-28$2.39$2.3982,400——
2026-01-27$2.47$2.47106,600——
2026-01-26$2.48$2.4859,200——
2026-01-23$2.58$2.58107,500——
2026-01-22$2.59$2.59224,900——
2026-01-21$2.27$2.2766,100——
2026-01-20$2.28$2.28142,400——
2026-01-16$2.53$2.5371,600——
2026-01-15$2.57$2.57159,500——
2026-01-14$2.79$2.79229,300——
2026-01-13$2.87$2.87667,000——
2026-01-12$2.30$2.3097,300——
2026-01-09$2.26$2.26107,800——
2026-01-08$2.41$2.4157,200——
2026-01-07$2.46$2.46131,000——
2026-01-06$2.58$2.58114,100——
2026-01-05$2.59$2.59175,500——
2026-01-02$2.63$2.63102,930——