26 /100
MEDIUM RISK
Score updated Jul 13, 2026

AMPH — Amphastar Pharmaceuticals, Inc. Dilution Risk Tracker

Track AMPH 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 July 13, 2026, Amphastar Pharmaceuticals, Inc. (AMPH) has a DilutionWatch DilutionScore of 26/100, rated MEDIUM dilution risk. Amphastar Pharmaceuticals, Inc. has a market capitalization of $831.15M, 44.09M shares outstanding, 216 institutional holders tracked. Key dilution vectors include approximately 999 months of cash runway.

Source: DilutionWatch (dilutionwatch.com) — data updated daily from SEC EDGAR filings. Not financial advice.

📊 Score Breakdown

📋 Offering Ability
38
💰 Cash Runway
0
📊 Float Risk
30
⚠️ Warrant Exposure
40
🔄Convertible Debt

🌦️ Dilution Forecast

☀️
Clear
No significant dilution signals
0%
No significant dilution signals detected for AMPH.
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💹 Market Data

Market Cap$831.15M
Shares Outstanding44.09M
Float32.84M
Cash$291.95M
Debt$619.71M
Short InterestN/A

🏛 Institutional Holdings

QoQ: ↑ 2.5% shares (2026Q1 vs prior)
216 institutional holders · 36.30M shares
#1 BlackRock, Inc. 5.42M shares
#2 VANGUARD CAPITAL MANAGEMENT LLC 3.09M shares
#3 DIMENSIONAL FUND ADVISORS LP 2.03M shares
+ 17 more holders Sign up free to view →

📉 Short Interest

Short Interest3.85M
Days to Cover5.2
% of Float11.7%
FINRA data as of Jun 30, 2026

📁 Recent SEC Activity

4 INSIDER TRANSACTION Mar 17, 2026
4 INSIDER TRANSACTION Mar 17, 2026
4 INSIDER TRANSACTION Mar 17, 2026
4 INSIDER TRANSACTION Mar 17, 2026
4 INSIDER TRANSACTION Mar 11, 2026
Full SEC filing analysis available with free account

📰 Recent News

No recent news

📋 What This Means for AMPH Shareholders

Amphastar Pharmaceuticals, Inc. (AMPH) has a DilutionScore of 26/100, rated Medium dilution risk. This tier indicates some dilution exposure — often an older shelf registration with remaining capacity, warrants not yet exercised, or a cash position that will require monitoring over the next several quarters. Score as of July 13, 2026.

DilutionWatch's EDGAR monitoring for AMPH shows no major active dilution programs at this time. The primary risk categories — shelf registration capacity, ATM programs, warrant overhang, and cash runway — are each within normal ranges for a company of this profile. This can change quickly if a new S-3 or Form S-1 is filed.

DilutionWatch tracks over 25 SEC filing types for AMPH in real-time, scanning EDGAR every 60 seconds. The DilutionWatch screener shows real-time score changes for AMPH alongside comparable medium-risk stocks. Not financial advice — this analysis is for informational purposes only.

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🔬 More Research for AMPH
📊 AMPH FDA Catalyst Timeline & Biotech Grade — BiotechSigns 📡 AMPH Signal Convergence & Dark Pool Activity — StonkWhisper

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