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27 /100
COMPONENT-LIMITED
Score updated Oct 13, 2026

OMER — Omeros Corporation Dilution Risk Tracker

Track OMER dilution risk with DilutionWatch's stock tracker. DilutionScore™ measures dilution risk across 5 factors — lower scores indicate higher risk of share dilution.

⚠️ Not financial advice. Do your own research before making any investment decisions.

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As of October 13, 2026, Omeros Corporation (OMER) has a DilutionWatch DilutionScore of 27/100, rated MEDIUM dilution risk. This is a component-limited score because one or more material inputs are unavailable or not applicable. Omeros Corporation has a market capitalization of $1.44B, 72.39M shares outstanding, 162 institutional holders tracked.

This page includes automatically generated factual summaries from DilutionWatch data. It is not financial advice, not investment research, and not a recommendation. Do your own research. Read the full disclaimer and terms of service.

Score Breakdown

📋 Offering Ability
40
💰Cash Runway—
📊 Float Risk
15
⚠️ Warrant Exposure
40
🔄 Convertible Debt
60

Dilution Forecast

🌥️
Advisory
Moderate dilution signals present
model est. 20%
🔁 Convertible Conversion model 40%
• Significant convertible debt: 16% potential dilution
• Elevated convertible risk (60/100)
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Market Data

Market Cap$1.44B
Shares Outstanding72.39M
Float69.80M
Cash$131.95M
Debt$134.26M
Short InterestN/A

Source-Backed Evidence Depth

This public preview uses stored DilutionWatch fields and linked SEC/market records only. Missing values are not estimated.

FieldCurrent ValueBasis
DilutionScore27/100DilutionWatch score record
Shares Outstanding72.39MVerified float table or market cache
Public Float69.80MVerified float table or market cache
Market Cap$1.44BMarket data cache
Cash RunwayNot applicable / unavailableDilutionWatch score inputs
Shelf CapacityNone in current score inputsSEC-derived dilution fields
ATM CapacityNone in current score inputsSEC-derived dilution fields
Outstanding WarrantsNone in current score inputsSEC-derived dilution fields

Recent source-backed SEC insight records available on this page: 2.

Recent SEC source mix: XBRL 2.

The page does not infer future share issuance, financing probability, cash needs, management intent, or price impact when source fields are absent.

Institutional Holdings

QoQ: ↓ 9.1% shares (2026Q1 vs prior)
162 institutional holders · 40.13M shares
#1 VANGUARD CAPITAL MANAGEMENT LLC 5.97M shares
#2 BlackRock, Inc. 5.31M shares
#3 INGALLS & SNYDER LLC 3.56M shares
+ 17 more holders Sign up free to view →

Institutional holder totals are aggregated from ownership filings and may use a different share basis or reporting date than public float. They are not a reconciliation against tradeable float.

Short Interest

Short Interest11.38M
Days to Cover7.0
% of Float16.3%
FINRA data as of Sep 30, 2026

Recent SEC Activity

xbrl XBRL CONVERTIBLE 2026-03-31
xbrl XBRL WARRANT 2023-11-09
Full SEC filing analysis available with free account →

Recent News

No recent news available for this ticker.

Factual OMER Dilution Snapshot

Omeros Corporation (OMER) has a DilutionScore of 27/100, rated Medium dilution risk. Score date: October 13, 2026.

This automatically generated snapshot is assembled from stored DilutionWatch data fields and may contain data-source errors or omissions. It is not financial advice, not investment research, and not a recommendation. Do your own research and review the full disclaimer and terms of service.

DilutionScore History — Last 90 Days

OMER's DilutionScore is currently 27/100 (Medium risk), with 5 score changes tracked over 89 days. The score deteriorated from 28/100 (Medium risk).

Period Score Risk Level Duration
Oct 13, 202627/100MEDIUM1 day
Sep 16 – Oct 12, 202628/100MEDIUM27 days
Aug 22 – Sep 15, 202629/100MEDIUM25 days
Aug 14 – Aug 21, 202624/100LOW7 days
Jul 20 – Aug 13, 202625/100LOW25 days
Jul 16 – Jul 19, 202628/100MEDIUM4 days

Score recalculated daily from SEC filings and market data. Sign up free for real-time score change alerts.

Share Dilution History

OMER shares outstanding have increased 2.1% from 70.90M (Apr 2026) to 72.38M (May 2026). Each increase represents potential dilution to existing shareholders.

Date Shares Outstanding Public Float Change
May 17, 202672.38M69.80M▲ 0.01%
May 16, 202672.38M69.79M▲ 0.54%
May 08, 202672.17M69.42M▲ 0.20%
Apr 07, 202672.00M69.28M▲ 0.06%
Apr 03, 202670.90M69.24M▲ 1.55%

Share counts sourced from verified regulatory filings. Increases indicate dilution events.

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Score Coverage Note