Summary
• Omeros Corporation’s stock jumped 72.1% to $15.06 following FDA approval of Yartemlea, its therapy for TA-TMA.
• Yartemlea is the first therapy targeting hematopoietic stem cell transplant-associated thrombotic microangiopathy, marking a significant advance in treatment options.
• The stock has gained 104.4% in the last quarter and has a consensus “Buy” rating from analysts, indicating strong investor confidence.
Omeros Corporation (NASDAQ: OMER) has seen its stock soar by 72.1% during intraday trading, with shares currently priced at $15.06. This significant movement comes on the heels of exciting news from the U.S. Food and Drug Administration (FDA) regarding the approval of Yartemlea.
FDA Approval Sparks Enthusiasm
The catalyst for today’s dramatic price action is the FDA’s recent approval of Omeros’ Yartemlea (narsoplimab-WUUG), the first and only therapy indicated for treatment of hematopoietic stem cell transplant-associated thrombotic microangiopathy (TA-TMA). This condition is a serious complication of stem-cell transplantation, often linked to activation of the lectin pathway of complement. With this approval, Yartemlea stands out as a pioneering lectin pathway inhibitor, selectively inhibiting MASP-2, a crucial component in this pathway.
This approval could position Omeros favorably in an evolving therapeutic market, particularly given the severe implications of TA-TMA on patients. The renewed investor interest reflects a response to this promising development.
Volume and Market Dynamics
In today’s trading session, Omeros has seen a notable volume of over 11.25 million shares traded, well above its average volume of 2.16 million over the last 10 days and 3.68 million over three months. Such elevated trading activity often signals heightened investor interest, potentially driving further momentum in the stock price.
Performance Overview
Omeros’ stock has experienced a remarkable turnaround, particularly over the last quarter where it has gained 104.4%. The firm’s yearly performance stands at 11.0%, while the stock has experienced a substantial increase of nearly 159% over the past six months. The current price also reflects a significant shift from its recent lows, positioning the company to capitalize on therapeutic advancements.
Analyst Sentiment
Analyst sentiment remains bullish, with a consensus rating of “Buy” indicating confidence in the company’s growth trajectory post-approval. Historically, the market reaction to product approvals in the biotech space has been positive, often leading to sustained investor interest.
As Omeros continues to push forward with its innovative therapies, the approval of Yartemlea represents a critical milestone in its growth strategy, enhancing its portfolio and market presence.


