What is the 13F Pro Quality Score for ADTN?

13F Pro ranks ADTRAN Holdings, Inc. (ADTN) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View ADTN's current score at https://13fpro.ai/company/ADTN (free sign-up required for the full ranking).

Where does 13F Pro source ADTN data?

All ADTRAN Holdings, Inc. fundamentals and ownership data come directly from SEC EDGAR. ADTRAN Holdings, Inc. files with the SEC under CIK 926282. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is ADTN in?

ADTRAN Holdings, Inc. (ADTN) is classified in the Technology sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/technology.

How often is ADTN research updated on 13F Pro?

ADTN's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

ADTRAN Holdings, Inc.(ADTN)Stock Analysis

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SEC EDGAR: CIK 926282 ADTN stock profile & AI dashboard →

13F Pro Quality Score

49.4/100

Rank #1,660 of 2,962 stocks

View Technology peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Nov 14, 2026.

Revenue Growth

38.8/100

Profitability

42.3/100

Balance Sheet

28.1/100

Earnings Quality

84.5/100

Free Cash Flow

42.3/100

Institutional Flow

83.3/100

Revenue Scale

52.2/100

Dilution Risk

59.0/100

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Why ADTN Scores 49/100

exact factor attribution · 2026-09-11

ADTN's composite is driven by earnings quality and institutional flow, held back by revenue growth and capital efficiency. Bars show each factor's exact push vs. a median company, using the same weights the ranking engine applies.

Earnings quality

+3.5 pts

85th pct

Institutional flow

+1.7 pts

83th pct

Shareholder dilution

+0.5 pts

59th pct

Scale

+0.3 pts

52th pct

Earnings growth

+0.3 pts

56th pct

Profitability

-1.2 pts

42th pct

Free cash flow

-1.2 pts

42th pct

Capital efficiency

-2.2 pts

28th pct

Revenue growth

-2.2 pts

39th pct

Latest change (2026-08-04): 42 → 48 · ↑ Revenue growth 23→50

Factor percentiles are cross-sectional ranks across the ~2,800-stock scored universe, computed from SEC EDGAR filings. Not investment advice.

ADTN Stock Analysis & AI Quality Score

Data updated 2026-09-11

AI stock analysis and institutional research for ADTRAN Holdings, Inc. (ADTN), a Technology sector company. 13F Pro's AI-powered ranking engine scores ADTN at 49.4/100 on a 32-signal composite quality model, placing it at rank #1,660 of 2,962 stocks — the bottom half of the AI-ranked universe. ADTN scores in the top quartile across earnings quality (84.5), institutional flow (83.3). Areas of concern include balance sheet strength (28.1) and revenue growth (38.8), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q2 2026), ADTRAN Holdings, Inc. reports quarterly revenue of $281.1M, net income of $-10.9M, an operating margin of -3.6%. Top institutional holders of ADTN by reported 13-F value include BlackRock, VANGUARD PORTFOLIO MANAGEMENT, VANGUARD CAPITAL MANAGEMENT, based on the most recent SEC filings. ADTN trades on the Nasdaq exchange and files with the SEC under CIK 926282. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate ADTN daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for ADTRAN Holdings, Inc. directly from SEC EDGAR. ADTRAN Holdings, Inc.'s 13F Pro composite quality score has ranged between 34 and 54 since 2024, currently 49.4 — an improving long-term trajectory across 55 quarterly and live scoring snapshots.

✦

Fun facts about ADTRAN Holdings, Inc.

Quirks, history, and lore behind ADTN — the kind of stuff that makes a stock memorable.

1
The Basics
U.S. technology company · small-cap · listed on Nasdaq · headquartered in Huntsville, Alabama — yes, Alabama.
2
The Numbers
Annual revenue in the range of roughly $1 billion, serving telecom carriers worldwide who are desperate to modernize their aging networks.
3
The History
Founded in 1926 and later reinvented for the digital age, it has spent decades supplying the backbone equipment that keeps phone and broadband networks humming.
4
The Secret
Its sweet spot is open, disaggregated networking — the movement to break apart proprietary telecom gear so carriers aren't locked into one vendor forever.
5
The Lore
It merged with German networking firm ADVA Optical Networking in 2022, doubling its scale and giving it a much stronger foothold in European fiber and optical transport markets.
6
The Giveaway
A Huntsville, Alabama telecom-equipment maker whose ticker is four letters and whose name is basically a portmanteau of two networking companies that became one.

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Revenue

Q2 2026

$281.1M

Net Income

Q2 2026

$-10.9M

Free Cash Flow

Q2 2026

$17.0M

Operating Margin

Q2 2026

-3.6%

ROIC

Q2 2026

-31.1%

Period

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro

Revenue

+17.5% YoY

$1.08BFY 2025

FY22 $1.03BFY23 $1.15BFY24 $922.7MFY25 $1.08B

Net Income

+90.1% YoY

$-45.7MFY 2025

FY22 $-2.0MFY23 $-268.9MFY24 $-459.9MFY25 $-45.7M

Operating Income

+96.4% YoY

$-15.6MFY 2025

FY22 $-72.8MFY23 $-223.7MFY24 $-427.6MFY25 $-15.6M

EPS (Diluted)

+91.0% YoY

$-0.52FY 2025

FY22 $-0.03FY23 $-3.43FY24 $-5.79FY25 $-0.52

Total Assets

+2.8% YoY

$1.20BFY 2025

FY22 $1.94BFY23 $1.68BFY24 $1.17BFY25 $1.20B

Op. Cash Flow

+25.3% YoY

$129.8MFY 2025

FY22 $-44.2MFY23 $-43.0MFY24 $103.6MFY25 $129.8M

Free Cash Flow

+41.9% YoY

$98.0MFY 2025

FY22 $-61.3MFY23 $-79.4MFY24 $69.1MFY25 $98.0M

Metric	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020
Revenue	$1.08B +17.5%	$922.7M -19.7%	$1.15B +12.0%	$1.03B +82.2%	$563.0M +11.2%	$506.5M
Net Income	$-45.7M +90.1%	$-459.9M -71.1%	$-268.9M -13098.4%	$-2.0M +76.4%	$-8.6M -463.1%	$2.4M
Operating Income	$-15.6M +96.4%	$-427.6M -91.2%	$-223.7M -207.1%	$-72.8M -395.4%	$-14.7M -50.4%	$-9.8M
EPS (Diluted)	$-0.52 +91.0%	$-5.79 -68.8%	$-3.43 -11333.3%	$-0.03 +83.3%	$-0.18 -460.0%	$0.05
Total Assets	$1.20B +2.8%	$1.17B -30.2%	$1.68B -13.7%	$1.94B +241.6%	$569.0M +8.2%	$525.7M
Operating Cash Flow	$129.8M +25.3%	$103.6M +340.8%	$-43.0M +2.7%	$-44.2M -1570.3%	$3.0M +118.2%	$-16.5M
Free Cash Flow	$98.0M +41.9%	$69.1M +187.0%	$-79.4M -29.4%	$-61.3M -2203.6%	$-2.7M +88.4%	$-22.9M

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Available Research

13F Pro tracks comprehensive data for ADTRAN Holdings, Inc. including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of ADTN

BlackRock, Inc.
$108.9M7,836,196 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$71.4M5,135,649 sh
VANGUARD CAPITAL MANAGEMENT LLC
$48.8M3,510,271 sh
STATE STREET CORP
$42.9M3,082,794 sh
ROYCE & ASSOCIATES LP
$41.3M2,972,917 sh
UBS Group AG
$40.9M2,940,724 sh
TWO SIGMA INVESTMENTS, LP
$40.3M2,896,353 sh
MILLENNIUM MANAGEMENT LLC
$37.8M2,722,820 sh
DnB Asset Management AS
$36.4M2,619,389 sh
JPMORGAN CHASE & CO
$36.1M2,623,057 sh

Fund	Value	Shares
BlackRock, Inc.	$108.9M	7,836,196
VANGUARD PORTFOLIO MANAGEMENT LLC	$71.4M	5,135,649
VANGUARD CAPITAL MANAGEMENT LLC	$48.8M	3,510,271
STATE STREET CORP	$42.9M	3,082,794
ROYCE & ASSOCIATES LP	$41.3M	2,972,917
UBS Group AG	$40.9M	2,940,724
TWO SIGMA INVESTMENTS, LP	$40.3M	2,896,353
MILLENNIUM MANAGEMENT LLC	$37.8M	2,722,820
DnB Asset Management AS	$36.4M	2,619,389
JPMORGAN CHASE & CO	$36.1M	2,623,057

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Is ADTN a good stock to buy?

13F Pro's AI-powered analysis of ADTRAN Holdings, Inc. (ADTN) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Technology sector (listed on Nasdaq). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for ADTN are available on the ADTN stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing. ADTN is classified as a small company.

Which hedge funds own ADTN?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling ADTN. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of ADTRAN Holdings, Inc.'s investment landscape.