67 /100
HIGH RISK
Score updated Apr 13, 2026

ATRA

Atara Biotherapeutics, Inc. — Stock Dilution Tracker

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

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📊 Score Breakdown
📋 Offering Ability
60
💰 Cash Runway
95
📊 Float Risk
30
⚠️ Warrant Exposure
15
🔄Convertible Debt
🌦️ Dilution Forecast
🌩️
Severe
Multiple high-probability dilution events detected
49%
💰 Capital Raise 93%
• Critical: only 2.1 months cash remaining
• Active shelf registration ($9M, 24% of market cap)
📉 Score Deterioration 10%
• Score in HIGH risk zone (67/100)
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💹 Market Data
Market Cap$38.03M
Shares Outstanding8.18M
Float5.33M
Cash$8.48M
Debt$10.38M
Short InterestN/A
🏛 Institutional Holdings
QoQ: ↑ 9.0% shares (2025Q4 vs prior)
42 institutional holders · 2.06M shares
#1 EcoR1 Capital, LLC 573.2K shares
#2 Redmile Group, LLC 441.7K shares
#3 VANGUARD GROUP INC 225.9K shares
+ 17 more holders Sign up free to view →
📉 Short Interest
Short Interest327.1K
Days to Cover3.0
% of Float6.1%
FINRA data as of Mar 31, 2026
📁 Recent SEC Activity
xbrl XBRL CONVERTIBLE Dec 31, 2014
424B3 ATM Mar 25, 2026
EFFECT EFFECT Mar 25, 2026
4 INSIDER TRANSACTION Mar 19, 2026
S-3 SHELF Mar 17, 2026
Full SEC filing analysis available with free account
📰 Recent News
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