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OMER
NASDAQ Life Sciences

EU Regulator Issues Negative Opinion on Omeros' Narsoplimab, Shares Plunge 25%

Reported by Dow Jones Newswires
Sentiment info
Negative
Importance info
9
Price
$8
Mkt Cap
$775.864M
52W Low
$2.95
52W High
$17.65
Market data snapshot near publication time

Summary

The European Medicines Agency (EMA) has issued a negative opinion on Omeros' marketing authorization application for narsoplimab, a drug for hematopoietic stem-cell transplant-associated thrombotic microangiopathy (TA-TMA). This is a major setback for the company's efforts to commercialize the drug in Europe, despite its current approval in the U.S. The news immediately sent shares down 25% in premarket trading, significantly impacting the company's growth prospects following its recent return to profitability with YARTEMLEA. Omeros plans to request a re-examination of the opinion.

At the time of this announcement, OMER was trading at $8.00 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $775.9M. The 52-week trading range was $2.95 to $17.65. This news item was assessed with negative market sentiment and an importance score of 9 out of 10. Source: Dow Jones Newswires.


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OMER - Latest Insights

OMER
Jun 26, 2026, 9:14 AM EDT
Source: Dow Jones Newswires
Importance Score:
9
Price at Filing: $8.00
Real-time Price: $8.00 info
Change: +$0.0020 (+0.03%) info
Market Cap: $775.864M info
OMER
Jun 25, 2026, 6:02 AM EDT
Filing Type: 8-K
Importance Score:
7
Price at Filing: $10.83
Real-time Price: $8.00 info
Change: -$2.83 (-26%) info
Market Cap: $775.864M info
OMER
Jun 18, 2026, 7:52 AM EDT
Filing Type: 8-K
Importance Score:
8
Price at Filing: $9.75
Real-time Price: $8.00 info
Change: -$1.75 (-18%) info
Market Cap: $775.864M info
OMER
May 14, 2026, 3:54 AM EDT
Source: Wiseek News
Importance Score:
8
Price at Filing: $14.82
Real-time Price: $8.00 info
Change: -$6.82 (-46%) info
Market Cap: $775.864M info
OMER
May 13, 2026, 4:07 PM EDT
Filing Type: 10-Q
Importance Score:
9
Price at Filing: $14.94
Real-time Price: $8.00 info
Change: -$6.94 (-46%) info
Market Cap: $775.864M info
OMER
May 13, 2026, 4:06 PM EDT
Filing Type: 8-K
Importance Score:
8
Price at Filing: $14.94
Real-time Price: $8.00 info
Change: -$6.93 (-46%) info
Market Cap: $775.864M info
OMER
May 13, 2026, 4:02 PM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $14.38
Real-time Price: $8.00 info
Change: -$6.38 (-44%) info
Market Cap: $775.864M info
OMER
Apr 30, 2026, 8:00 AM EDT
Filing Type: DEF 14A
Importance Score:
7
Price at Filing: $14.63
Real-time Price: $8.00 info
Change: -$6.63 (-45%) info
Market Cap: $775.864M info
OMER
Mar 31, 2026, 4:06 PM EDT
Filing Type: 10-K
Importance Score:
9
Price at Filing: $11.00
Real-time Price: $8.00 info
Change: -$3.00 (-27%) info
Market Cap: $775.864M info
OMER
Mar 31, 2026, 4:02 PM EDT
Source: Reuters
Importance Score:
7
Price at Filing: $10.56
Real-time Price: $8.00 info
Change: -$2.56 (-24%) info
Market Cap: $775.864M info