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Fierce Biotech·Sep 14·1 min read
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Electra Therapeutics targets up to $342M IPO to fund phase 2/3 study of ipsoprubart for rare inflammatory syndrome

Sep 14, 2026·read at Fierce Biotech ↗DealNeutral

Electra Therapeutics, based in South San Francisco, filed with the SEC indicating plans to sell 21.7 million shares at $14‑$16 each.

The company expects net proceeds of about $296.6 million, potentially rising to $341.9 million if underwriters exercise their option for an extra 3.2 million shares.

Funds will be directed toward advancing its drug ipsoprubart through a combined phase 2/3 global trial targeting secondary hemophagocytic lymphohistiocytosis (sHLH), a rare, life‑threatening hyperinflammatory condition.

Electra entered the filing with $97.7 million cash on hand after a $183 million Series C round raised in October, positioning it to cover the estimated $220 million development cost for the study and subsequent regulatory filing.

source

This writeup was produced by pharmadog from original reporting by Fierce Biotech.

Original headline: “Electra aims for $342M IPO to power inflammatory drug’s push through phase 3”

read at Fierce Biotech ↗
499 words · retrieved Sep 14
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companies & drugs in this story

companies
Electra Therapeutics Inc5RISING2Ultragenyx Pharmaceutical Inc.2Parabilis Medicines
drugs
ipsoprubart7Immunology
topics
Immunology7Monoclonal Antibody2Oncology2Rare Disease2ApprovalData ReadoutInfectious Disease

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