ADTRAN Holdings Inc.

Last updated September 27, 2026

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Organization details

Legal name: ADTRAN Holdings Inc.
Former names: Adtran Inc
Ownership: Public
Status: Active
Sector (GICS): Information Technology
SIC code: 3661 — Telephone & Telegraph Apparatus
Headquarters city: Huntsville
Headquarters state / province: Alabama
Headquarters country: United States
Fiscal year end: December
Ticker symbol: ADTN
Primary stock exchange: Nasdaq

Identifiers

SEC CIK: 0000926282
EIN: 87-2164282
Wikidata ID: Q4651203

Board of directors

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Anne DelSanto · Director
Since 2026
Balan Nair · Director
Since 2023
Brian Protiva · Director
Since 2023
Christian Terlinde · Director
Since 2026
Gregory James McCray · Director
Since 2023
H. Fenwick Huss · Director
Since 2023
Hourigan Rice Jacqueline · Director
Since 2023
Johanna Hey · Director
Since 2023
Kathryn A. Walker · Director
Since 2023
Nikos Theodosopoulos · Director
Since 2023
Thomas R. Stanton · Director · Chairman & CEO
Since 2023

Chief executives

Thomas R. Stanton · Chairman & CEO

Dates unknown

Director election results

Annual meeting of May 13, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

4 of this board's directors also sit on 7 other boards. 2 are in the same sector.

Shared director Other board Same sector

Advanced Energy Industries Inc. Same sector
via Anne DelSanto
Arista Networks Inc. Same sector
via Nikos Theodosopoulos
Belden Inc
via Gregory James McCray
Charter Communications Inc.
via Balan Nair
DigitalBridge Group Inc.
via Gregory James McCray
Hercules Capital Inc.
via Nikos Theodosopoulos
Liberty Latin America Ltd.
via Balan Nair

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months: $1,346,763; 7 purchases by 3 insiders
Sold, last 12 months: $2,505,449; 5 sales by 3 insiders

Date	Insider	Transaction	Shares	Price	Value
Nov 9, 2026	Thomas R. Stanton Director, Officer (Chairman & CEO)	Open-market purchase	+40,000	$4.30	$171,920
Nov 6, 2026	Santo Timothy P Officer (SVP of Finance; CFO)	Open-market purchase	+17,820	$4.16	$74,188
Nov 6, 2026	Thomas R. Stanton Director, Officer (Chairman & CEO)	Open-market purchase	+150,000	$4.01	$600,900
Nov 3, 2026	Wilson James Denson Jr Officer (Chief Revenue Officer)	Shares withheld for tax	−4,512	$5.43	$24,499
Nov 3, 2026	Thomas R. Stanton Director, Officer (Chairman & CEO)	Shares withheld for tax	−91,439	$5.43	$496,512
Nov 3, 2026	Wilson James Denson Jr Officer (Chief Revenue Officer)	Option exercise	+17,800	—	—
Nov 3, 2026	Thomas R. Stanton Director, Officer (Chairman & CEO)	Option exercise	+225,775	—	—
Oct 27, 2026	Christian Terlinde Director	Grant or award	+8,721	—	—
Aug 10, 2026	Glingener Christoph Officer (Chief Technology Officer)	Grant or award	+27,924	—	—
Aug 6, 2026	Santo Timothy P Officer (SVP of Finance; CFO)	Open-market purchase	+6,579	$7.60	$50,000
Jul 24, 2026	Glingener Christoph Officer (Chief Technology Officer)	Grant or award	+9,384	—	—
Jul 1, 2026	Anne DelSanto Director	Grant or award	+4,399	—	—
May 20, 2026	Wilson James Denson Jr Officer (Chief Revenue Officer)	Open-market sale	−9,332	$14.72	$137,367
May 20, 2026	Wilson James Denson Jr Officer (Chief Revenue Officer)	Gift	−10,469	—	—
May 8, 2026	Glingener Christoph Officer (Chief Technology Officer)	Option exercise	+22,277	$12.17	$271,111

Peers

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Questions about ADTRAN Holdings Inc.

Who is the CEO of ADTRAN Holdings Inc.?

Thomas R. Stanton is ADTRAN Holdings Inc.'s Chairman & CEO.

How many directors are on ADTRAN Holdings Inc.'s board?

ADTRAN Holdings Inc.'s board has 11 directors: Anne DelSanto, Balan Nair, Brian Protiva, Christian Terlinde, Gregory James McCray, H. Fenwick Huss, Hourigan Rice Jacqueline, Johanna Hey, Kathryn A. Walker, Nikos Theodosopoulos and 1 other.

Are ADTRAN Holdings Inc. insiders buying or selling shares?

Over the last 12 months, ADTRAN Holdings Inc. insiders bought $1.3 million of shares in 7 purchases and sold $2.5 million of shares in 5 sales on the open market, as reported to the SEC on Forms 4 and 5.

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