[Form 4] ADTRAN Holdings, Inc. Insider Trading Activity

Rhea-AI Filing Summary

ADTRAN Holdings, Inc. (ADTN) reported an insider purchase of its common stock by a reporting person who is both a Director and the Chairman & CEO. On 11/24/2025, this individual acquired 40,928 shares of ADTRAN common stock in an open-market transaction coded as a purchase. The weighted average purchase price reported was $7.33 per share, with individual trades executed between $7.32 and $7.33.

Following this transaction, the reporting person beneficially owns 982,095.51 shares of ADTRAN common stock in direct form. The filing notes that detailed information on the number of shares purchased at each separate price within the stated range is available upon request.

Insider Trade Summary

Net Buyer: 40,928 shares

Net Buy 1 txn

Insider STANTON THOMAS R

Role Chairman & CEO

Bought 40,928 shs ($300K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	40,928	$7.33	$300K

Holdings After Transaction: Common Stock — 982,095.51 shares (Direct)

Footnotes (1)

1. F1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $7.32 to $7.33, inclusive. The reporting person undertakes to provide to ADTRAN Holdings, Inc. (the Issuer), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote (1) to this Form 4.

FAQ

What insider transaction did ADTRAN (ADTN) report in this Form 4?

The filing reports that a person who is both a Director and the Chairman & CEO of ADTRAN Holdings, Inc. purchased common stock of the company.

How many ADTRAN (ADTN) shares were purchased in the reported transaction?

The insider purchased 40,928 shares of ADTRAN Holdings, Inc. common stock in the reported transaction.

What was the purchase price for the ADTRAN (ADTN) insider share buy?

The reported price is a weighted average of $7.33 per share, with individual trades executed at prices ranging from $7.32 to $7.33, inclusive.

When did the ADTRAN (ADTN) insider transaction take place?

The transaction date shown in the Form 4 is 11/24/2025.

How many ADTRAN (ADTN) shares does the insider own after this transaction?

After the reported purchase, the insider beneficially owns 982,095.51 shares of ADTRAN Holdings, Inc. common stock directly.

What does the weighted average price disclosure in the ADTRAN (ADTN) Form 4 mean?

It means the $7.33 price reflects an average of multiple trades executed between $7.32 and $7.33; the insider offers to provide the exact share counts at each price upon request.

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 11/25/2025 - 12:10 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

STANTON THOMAS R

(Last) (First) (Middle)

C/O ADTRAN HOLDINGS, INC.

901 EXPLORER BOULEVARD

(Street)

HUNTSVILLE AL 35806-2807

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ADTRAN Holdings, Inc. [ ADTN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chairman & CEO

3. Date of Earliest Transaction (Month/Day/Year)
11/24/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/24/2025		P		40,928	A	$7.33(1)	982,095.51	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $7.32 to $7.33, inclusive. The reporting person undertakes to provide to ADTRAN Holdings, Inc. (the Issuer), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote (1) to this Form 4.

	/s/ Dan Ragsdale, by power of attorney	11/25/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.