How many institutional investors hold ADTN?

4 tracked institutional investors disclosed a position in ADTN (ADTRAN HOLDINGS INC) in their most recent 13F filing.

Who is the largest institutional holder of ADTN?

Izzy Englander, Millennium Management, holds the largest disclosed position in ADTN, valued at $38M.

Where does this ADTN ownership data come from?

SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.

ADTN — ADTRAN HOLDINGS INC

Name: ADTRAN HOLDINGS INC (ADTN) — Institutional Ownership
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Public company

For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

Why are billionaires buying ADTN?

Built from public SEC filings and public economic data. Not a recommendation.

Confidence

Institutional Conviction

Net distribution · 2 buying vs 2 selling last quarter

Macro Tailwind

Macro conditions are mixed for this sector

Why? — Evidence & Confidence ▾

Of 4 tracked investors who changed their ADTN position last quarter, 2 bought and 2 sold (50% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 55/100 in a Squeeze regime).

Supporting evidence

+2 tracked investors added or increased positions last quarter (Izzy Englander, Steve Cohen)
+4 tracked investors reported holding ADTN at their latest filing
+Macro Health is 55/100 in a Squeeze regime — historically acceptable for this sectorsource

Contradicting evidence — always shown

−2 tracked investors reduced or exited last quarter (2 reduced, 0 sold out)
−13F data is disclosed up to 45 days after quarter end — positions may have changed since

Know the limits

· 13F disclosure lag (up to 45 days)
· Tracked investors are a sample, not the whole market
· Sector regime fit is a historical average, not a guarantee

Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 8/20/2026.

About ADTRAN HOLDINGS INC (ADTN)

ADTRAN HOLDINGS INC (ADTN) appears in the most recent 13F filings of 4 tracked institutional investors. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $38M. Across recent filings, tracked investors recorded 5 new positions, 13 increased, 11 reduced, and 1 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in ADTN

/100

Institutional Accumulation

Added / Increased18

Reduced11

Exited1

BearishBullish

Crowded Trade Score™

How many top investors track ADTN

/100

Emerging Interest

4investors

A small number of top investors own this.

UndiscoveredCrowded

151015+

ADTN Ownership Composition

How ADTRAN HOLDINGS INC is held across tracked investor types, based on reported 13F positions.

Dominant Type

Multi-Strategy / Quant

87% of tracked value

Institutions

tracked investors

Total Reported

$59.3M

combined 13F value

Multi-Strategy / Quant87.3%
Macro12.7%

Multi-Strategy / Quant(3)

87.3%

Macro(1)

12.7%

Tracked investors currently reporting ADTN

Investor	Firm	Shares	Market value	% of portfolio	As of
Izzy Englander	Millennium Management	2.7M	$37.8M	0.01%	Jun 30, 2026
Ken Griffin	Citadel Advisors	236.7K	$3.3M	0.00%	Jun 30, 2026
Steve Cohen	Point72 Asset Management	764.8K	$10.6M	0.01%	Jun 30, 2026
Paul Tudor Jones	Tudor Investment Corp	541.5K	$7.5M	0.01%	Jun 30, 2026

Izzy EnglanderJun 30, 2026
Millennium Management
Shares
2.7M
Value
$37.8M
% Portfolio
0.01%
Ken GriffinJun 30, 2026
Citadel Advisors
Shares
236.7K
Value
$3.3M
% Portfolio
0.00%
Steve CohenJun 30, 2026
Point72 Asset Management
Shares
764.8K
Value
$10.6M
% Portfolio
0.01%
Paul Tudor JonesJun 30, 2026
Tudor Investment Corp
Shares
541.5K
Value
$7.5M
% Portfolio
0.01%

Recent activity

Investor	Action	Δ %	Current value	Filing date
Izzy Englander	Reduced	-24.87%	$6.9M	Nov 14, 2024
Izzy Englander	Reduced	-8.56%	$8.9M	Feb 14, 2025
Izzy Englander	Reduced	-88.61%	$1.1M	May 15, 2025
Izzy Englander	Increased	70.24%	$1.9M	Aug 14, 2025
Izzy Englander	Increased	371.16%	$23.4M	Feb 17, 2026
Izzy Englander	Reduced	-29.63%	$23.9M	May 15, 2026
Izzy Englander	Increased	43.58%	$37.8M	Aug 14, 2026
Ken Griffin	Reduced	-40.83%	$6.5M	Nov 14, 2024
Ken Griffin	Reduced	-14.84%	$3.4M	May 15, 2025
Ken Griffin	Increased	20.63%	$4.2M	Aug 14, 2025
Ken Griffin	Increased	193.86%	$13M	Nov 14, 2025
Ken Griffin	Reduced	-89.61%	$1.2M	Feb 17, 2026
Ken Griffin	Reduced	-42.85%	$3.3M	Aug 14, 2026
Steve Cohen	New	—	$114.2K	Nov 14, 2024
Steve Cohen	Sold	-100.00%	$0	Feb 14, 2025
Steve Cohen	New	—	$242.4K	Jul 21, 2025
Steve Cohen	Increased	57.64%	$393.1K	Aug 14, 2025
Steve Cohen	Increased	175.42%	$1.1M	Nov 14, 2025
Steve Cohen	Increased	249.12%	$3.7M	Feb 17, 2026
Steve Cohen	Increased	34.03%	$7.1M	May 15, 2026
Steve Cohen	Increased	35.41%	$10.6M	Aug 14, 2026
Paul Tudor Jones	New	—	$1.6M	Nov 14, 2024
Paul Tudor Jones	Increased	0.60%	$2.3M	Feb 14, 2025
Paul Tudor Jones	Increased	72.06%	$4.2M	May 15, 2025
Paul Tudor Jones	Reduced	-64.96%	$1.5M	Aug 14, 2025
Paul Tudor Jones	Increased	434.25%	$8.4M	Dec 9, 2025
Paul Tudor Jones	Reduced	-30.88%	$8.2M	May 15, 2026
Paul Tudor Jones	Reduced	-17.33%	$7.5M	Aug 14, 2026
Ken Griffin	New	—	$9.7M	Aug 14, 2024
Izzy Englander	New	—	$94.5K	May 15, 2024

Izzy Englander
Reduced
$6.9M(-24.87%)Nov 14, 2024
Izzy Englander
Reduced
$8.9M(-8.56%)Feb 14, 2025
Izzy Englander
Reduced
$1.1M(-88.61%)May 15, 2025
Izzy Englander
Increased
$1.9M(70.24%)Aug 14, 2025
Izzy Englander
Increased
$23.4M(371.16%)Feb 17, 2026
Izzy Englander
Reduced
$23.9M(-29.63%)May 15, 2026
Izzy Englander
Increased
$37.8M(43.58%)Aug 14, 2026
Ken Griffin
Reduced
$6.5M(-40.83%)Nov 14, 2024
Ken Griffin
Reduced
$3.4M(-14.84%)May 15, 2025
Ken Griffin
Increased
$4.2M(20.63%)Aug 14, 2025
Ken Griffin
Increased
$13M(193.86%)Nov 14, 2025
Ken Griffin
Reduced
$1.2M(-89.61%)Feb 17, 2026
Ken Griffin
Reduced
$3.3M(-42.85%)Aug 14, 2026
Steve Cohen
New
$114.2KNov 14, 2024
Steve Cohen
Sold
$0(-100.00%)Feb 14, 2025
Steve Cohen
New
$242.4KJul 21, 2025
Steve Cohen
Increased
$393.1K(57.64%)Aug 14, 2025
Steve Cohen
Increased
$1.1M(175.42%)Nov 14, 2025
Steve Cohen
Increased
$3.7M(249.12%)Feb 17, 2026
Steve Cohen
Increased
$7.1M(34.03%)May 15, 2026
Steve Cohen
Increased
$10.6M(35.41%)Aug 14, 2026
Paul Tudor Jones
New
$1.6MNov 14, 2024
Paul Tudor Jones
Increased
$2.3M(0.60%)Feb 14, 2025
Paul Tudor Jones
Increased
$4.2M(72.06%)May 15, 2025
Paul Tudor Jones
Reduced
$1.5M(-64.96%)Aug 14, 2025
Paul Tudor Jones
Increased
$8.4M(434.25%)Dec 9, 2025
Paul Tudor Jones
Reduced
$8.2M(-30.88%)May 15, 2026
Paul Tudor Jones
Reduced
$7.5M(-17.33%)Aug 14, 2026
Ken Griffin
New
$9.7MAug 14, 2024
Izzy Englander
New
$94.5KMay 15, 2024

Frequently asked questions

How many institutional investors hold ADTN?: 4 tracked institutional investors disclosed a position in ADTN (ADTRAN HOLDINGS INC) in their most recent 13F filing.
Who is the largest institutional holder of ADTN?: Izzy Englander, Millennium Management, holds the largest disclosed position in ADTN, valued at $38M.
Did institutional ownership of ADTN increase or decrease?: Across recent 13F filings, tracked investors recorded 5 new positions, 13 increased, 11 reduced, and 1 fully exited ADTN.
Where does this ADTN ownership data come from?: SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.