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26 /100
MEDIUM RISK
Score updated Oct 13, 2026

ASPN — Aspen Aerogels, Inc. Dilution Risk Tracker

Track ASPN 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, Aspen Aerogels, Inc. (ASPN) has a DilutionWatch DilutionScore of 26/100, rated MEDIUM dilution risk. Aspen Aerogels, Inc. has a market capitalization of $451.46M, 82.99M shares outstanding, 170 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
0
📊 Float Risk
10
⚠️ Warrant Exposure
40
🔄 Convertible Debt
60

Dilution Forecast

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

Market Cap$451.46M
Shares Outstanding82.99M
Float76.72M
Cash$154.21M
Debt$26.82M
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
DilutionScore26/100DilutionWatch score record
Shares Outstanding82.99MVerified float table or market cache
Public Float76.72MVerified float table or market cache
Market Cap$451.46MMarket data cache
Cash Runway705.5 monthsDilutionWatch 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: 6.

Recent SEC source mix: 4 5, XBRL 1.

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: ↑ 3.7% shares (2026Q1 vs prior)
170 institutional holders · 77.01M shares
#1 KIM, LLC 12.28M shares
#2 VANGUARD CAPITAL MANAGEMENT LLC 6.87M shares
#3 OAKTOP CAPITAL MANAGEMENT II, L.P. 5.17M 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 Interest6.10M
Days to Cover5.2
% of Float8.0%
FINRA data as of Sep 30, 2026

Recent SEC Activity

xbrl XBRL CONVERTIBLE 2017-03-02
4 INSIDER TRANSACTION 2026-03-10
4 INSIDER TRANSACTION 2026-03-10
4 INSIDER TRANSACTION 2026-03-10
4 INSIDER TRANSACTION 2026-03-10
Full SEC filing analysis available with free account →

Recent News

No recent news available for this ticker.

Factual ASPN Dilution Snapshot

Aspen Aerogels, Inc. (ASPN) has a DilutionScore of 26/100, 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

ASPN's DilutionScore is currently 26/100 (Medium risk), with 3 score changes tracked over 89 days. The score deteriorated from 27/100 (Medium risk).

Period Score Risk Level Duration
Oct 13, 202626/100MEDIUM1 day
Aug 22 – Oct 12, 202627/100MEDIUM52 days
Aug 14 – Aug 21, 202624/100LOW7 days
Jul 16 – Aug 13, 202626/100MEDIUM29 days

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

Share Dilution History

ASPN shares outstanding have increased 0.3% from 82.65M (Mar 2026) to 82.88M (May 2026). Each increase represents potential dilution to existing shareholders.

Date Shares Outstanding Public Float Change
May 28, 202682.88M76.72M▼ 0.07%
May 17, 202682.88M76.77M▼ 1.00%
May 10, 202682.83M77.54M▲ 0.16%
May 09, 202682.83M77.42M▼ 0.10%
Mar 27, 202682.83M77.49M▲ 0.77%
Mar 17, 202682.65M76.90M▲ 0.21%
Mar 14, 202682.65M76.73M▼ 0.51%

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

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