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SeaStar Medical Holding (ICU) Q1 2026 earnings results (first quarter 2026)

10-Q filed May 13, 2026

SeaStar Medical Holding (ICU) reported revenue of $495K for the first quarter 2026 (Q1 2026), +69% from a year earlier and +18% from the quarter before. Operating margin was -727.9%, net loss $3.5M (711.3% of revenue).

Revenue$495K
Year over year+69%
Quarter over quarter+18%
Operating margin-727.9%
Net earnings−$3.5M

SeaStar Medical Holding, Q1 2026: revenue $495K (+69% year over year), operating margin -727.9%, net loss $3.5M, operating cash flow −$2.8M. The chart follows the revenue to costs, profit and cash.

Q1 2026AmountQ/QY/Y
Revenue$495K+18%+69%
Operating profit−$3.6M——
Net earnings−$3.5M——
Operating cash flow−$2.8M——

What changed

Revenue was $495K in Q1 2026, up 69% year over year and up 18% from the previous quarter.

Gross margin was 90.7%, down 9.3 points from Q1 2025. Operating costs exceeded revenue by $3.6M, an operating margin of -727.9%. Operating expenses fell 2% while revenue rose 69%. The quarter ended with a net loss of $3.5M, wider than the previous quarter's $2.9M loss.

Operating cash flow was −$2.8M. Non-cash charges added back $91K of share-based compensation. Working capital and other items added $669K.

Questions

What was SeaStar Medical Holding's revenue in the first quarter 2026?

SeaStar Medical Holding (ICU) reported revenue of $495K for the first quarter 2026 (Q1 2026), +69% from a year earlier and +18% from the quarter before.

Was SeaStar Medical Holding profitable in the first quarter 2026?

Operating loss was $3.6M (-727.9% of revenue) and net loss $3.5M.

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Source: SeaStar Medical Holding 10-Q on SEC EDGAR.