SeaStar Medical Holding

Closed (deSPAC)

Profile in progress

What it is: Medical, Inc
What it’s doing now: Merging with LMF Acquisition Opportunities Inc (LMAO) — closed (despac).
What you should know: Data is still being assembled for this company — what is shown below is everything we have verified so far.

The business, per its filings

SEC primary

Medical, Inc. Denver-based SeaStar Medical is a privately-held medical technology company that is focusing on redefining how extracorporeal therapies may reduce the consequences of excessive inflammation on vital organs. SeaStar Medical’s novel technologies rely on science and innovation to provide life-saving solutions to critically-ill patients. It is developing and commercializing extracorporeal therapies that target the effector cells that drive systemic inflammation, causing direct tissue damage and secreting a range of pro-inflammatory cytokines that initiate and propagate imbalanced immune responses. For more information visit http://www.seastarmedical.com/ or visit us on LinkedIn or Twitter . LMF Acquisition Opportunities, Inc. LMF Acquisition Opportunities, Inc. (Nasdaq: LMAO) is a special purpose acquisition company formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses. LMAO is led by Bruce M. Rodgers, Chief Executive Officer and Chairman of the Board. For more information, visit www.lmfacquisitions.com .

What the company says about itself

Web research — not audited

SeaStar Medical is an innovator with a patented Selective Cytopheretic Device (SCD) designed to neutralize hyperinflammatory responses (cytokine storms) in critically ill patients to improve outcomes and save lives. The technology transforms inflammatory messengers from agents of destruction to repair and integrates into existing hemodialysis systems.

Markets:: Medical Devices | Healthcare | Critical Care
Products:: Selective Cytopheretic Device (SCD) | QuellImmune

What our web check found

[WEB-INTEL 2026-08-26] 11 finding(s) · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "SeaStar Medical is raising $4.4 million through a registered direct offering of 4,960,544 shares priced at $0.887 per share." [https://www.stocktitan.net/news/ICU/sea-star-medical-announces-4-4-million-registered-direct-offering-4b1xprxz4f08.html] · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "The gross proceeds from the offering are expected to be approximately $4.4 million." [https://www.stocktitan.net/news/ICU/sea-star-medical-announces-4-4-million-registered-direct-offering-4b1xprxz4f08.html] · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "The closing of the offering is expected to occur on or about August 1, 2025" [https://www.stocktitan.net/news/ICU/sea-star-medical-announces-4-4-million-registered-direct-offering-4b1xprxz4f08.html] · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "SeaStar Medical announced the pricing of a public offering at $0.65 per share, expected to raise approximately $4 million in gross" [https://www.investing.com/news/company-news/seastar-medical-raises-4-million-in-atmarket-offering-93CH-4130820] · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "From July 1 through the filing update, the company raised approximately $0.4 million by issuing 135,339 shares." [https://www.merlintrader.com/seastar-medical-holding-stock-hub/] · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "SeaStar Medical Holding Corporation Closes Initial $3.3 Million Tranche of $9.8 Million Private Placement" [https://finance.yahoo.com/news/seastar-medical-holding-corporation-closes-120000711.html] · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "On amount of $25 million." [https://simplywall.st/stocks/us/healthcare/nasdaq-icu/seastar-medical-holding] · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "On April 22, 2022, the SPAC announced its plan to merge with SeaStar Medical, Inc. (Legacy SeaStar)." [https://www.dandodiary.com/2024/07/articles/securities-litigation/medical-device-company-hit-with-spac-related-securities-lawsuit/] · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "The merger was completed on October 28," [https://www.dandodiary.com/2024/07/articles/securities-litigation/medical-device-company-hit-with-spac-related-securities-lawsuit/] · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "On April 22, 2022, the Company, then still operating as a SPAC, and SeaStar Medical, Inc. jointly announced that they had entered into a merger" [https://www.bespc.com/cases/ICU] · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "Inc.(LMAO) announced a DA with SeaStar Medical, of approximately $85 million. Expected completion in the third quarter of 2022." [https://www.boardroomalpha.com/da-for-lmao-and-seastar-medical/]

Source: https://seastarmedical.com/ · captured Aug 26, 2026 · marketing claims are reported as claims, never merged into the filed figures above.

The deal it’s entering

SeaStar Medical Holding is merging with LMF Acquisition Opportunities Inc (LMAO) currently marked Closed (deSPAC).

Headline equity value	—
PIPE	≈ $7M · unsourced

Structure per SEC accession(s) 0001193125-22-228658. How to read these numbers: headline vs effective valuation · what a definitive agreement commits

What exactly is being valued, and at what

Common questions

Is SeaStar Medical Holding going public?

SeaStar Medical Holding has an approved merger with the SPAC LMF Acquisition Opportunities Inc (LMAO). Deal status: Closed (deSPAC).

Does SeaStar Medical Holding have revenue?

The filings we've parsed don't state a usable revenue figure yet; this profile is updated as new documents land.

Educational content, not investment advice.