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32 /100
MEDIUM RISK
Score updated Oct 13, 2026

ADTN — ADTRAN Holdings, Inc. Dilution Risk Tracker

Track ADTN 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, ADTRAN Holdings, Inc. (ADTN) has a DilutionWatch DilutionScore of 32/100, rated MEDIUM dilution risk. ADTRAN Holdings, Inc. has a market capitalization of $572.81M, 81.48M shares outstanding, 227 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
20
⚠️ Warrant Exposure
40
🔄 Convertible Debt
85

Dilution Forecast

⛈️
Warning
High probability of dilution event
model est. 30%
🔁 Convertible Conversion model 60%
• Major convertible overhang: 34% potential dilution
• Convertible risk score very high (85/100)
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Market Data

Market Cap$572.81M
Shares Outstanding81.48M
Float78.96M
Cash$79.24M
Debt$25.60M
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
DilutionScore32/100DilutionWatch score record
Shares Outstanding81.48MVerified float table or market cache
Public Float78.96MVerified float table or market cache
Market Cap$572.81MMarket 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: 6.

Recent SEC source mix: 4 4, 8-K 1, 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: ↑ 21.0% shares (2026Q1 vs prior)
227 institutional holders · 88.88M shares
#1 BlackRock, Inc. 7.84M shares
#2 VANGUARD CAPITAL MANAGEMENT LLC 6.85M shares
#3 VANGUARD PORTFOLIO MANAGEMENT LLC 4.77M 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 Interest11.86M
Days to Cover7.2
% of Float15.0%
FINRA data as of Sep 30, 2026

Recent SEC Activity

xbrl XBRL CONVERTIBLE 2026-08-04
8-K 8K EVENT 2026-04-07
4 INSIDER TRANSACTION 2026-04-03
4 INSIDER TRANSACTION 2026-04-03
4 INSIDER TRANSACTION 2026-04-03
Full SEC filing analysis available with free account →

Recent News

No recent news available for this ticker.

Factual ADTN Dilution Snapshot

ADTRAN Holdings, Inc. (ADTN) has a DilutionScore of 32/100, 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

ADTN's DilutionScore is currently 32/100 (Medium risk), with 1 score change tracked over 89 days. The score improved from 24/100 (Low risk).

Period Score Risk Level Duration
Oct 10 – Oct 13, 202632/100MEDIUM4 days
Jul 16 – Oct 09, 202624/100LOW85 days

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

Share Dilution History

ADTN shares outstanding have increased 0.4% from 80.66M (Mar 2026) to 81.00M (May 2026). Each increase represents potential dilution to existing shareholders.

Date Shares Outstanding Public Float Change
May 24, 202681.00M78.96M▲ 0.02%
May 08, 202681.00M78.94M▲ 0.52%
May 07, 202681.00M78.53M▼ 0.42%
Apr 21, 202680.70M78.86M▲ 0.09%
Apr 10, 202680.70M78.79M▼ 0.25%
Mar 09, 202680.66M78.99M▲ 0.02%

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

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