Belden EVP sells 1,900 shares at $114.39

Belden’s EVP - Chief Comm. Officer reported a 1,900-share planned sale and now holds 31,144 shares directly plus retirement-plan shares.

Rhea-AI Filing Summary

BELDEN INC. (BDC) executive Brian Lieser, EVP - Chief Comm. Officer, reported selling 1,900 shares of common stock on September 15, 2026 at $114.39 per share in an open-market or private transaction. The sale was effected pursuant to a Rule 10b5-1 trading plan adopted on August 11, 2025.

After this transaction, he held 31,144 shares of Belden common stock directly and an additional 636.2114 shares indirectly through the Belden Retirement Savings Plan as of the filing date.

Insider Trade Summary 10b5-1

Net Seller: 1,900 shares

Net Sell 2 txns

Insider Lieser Brian

Role EVP - Chief Comm. Officer

Sold 1,900 shs ($217K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	1,900	$114.39	$217K
holding	Common Stock F2	--	--	--

Holdings After Transaction: Common Stock — 31,144 shares (Direct); Common Stock — 636.2114 shares (Indirect, By 401(k) Plan)

Footnotes (2)

1. F1. The sale reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Lieser on August 11, 2025.
2. F2. Represents the balance of shares of Belden Inc. common stock held in the Belden Retirement Savings Plan as of the date of this filing.

Key Figures

Shares sold: 1,900 shares Sale price per share: $114.39 per share Direct holdings after transaction: 31,144 shares +2 more

5 metrics

Shares sold 1,900 shares Common stock sale reported for September 15, 2026

Sale price per share $114.39 per share Price for the 1,900-share sale on September 15, 2026

Direct holdings after transaction 31,144 shares Direct ownership of Belden common stock following the sale

Indirect 401(k) holdings 636.2114 shares Shares held in the Belden Retirement Savings Plan as of the filing date

Rule 10b5-1 plan adoption date August 11, 2025 Adoption date of the trading plan used for the reported sale

Key Terms

Rule 10b5-1 trading plan, Belden Retirement Savings Plan, indirect ownership

3 terms

Rule 10b5-1 trading plan regulatory

"The sale reported was effected pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

Belden Retirement Savings Plan financial

"held in the Belden Retirement Savings Plan as of the date"

indirect ownership financial

"total shares following transaction listed as indirect ownership by 401(k) plan"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did BDC executive Brian Lieser report?

He reported a sale of 1,900 shares of Belden Inc. common stock on September 15, 2026 in an open-market or private transaction at $114.39 per share, according to the Form 4.

Was the BDC insider sale made under a Rule 10b5-1 trading plan?

Yes. The filing states the sale was effected pursuant to a Rule 10b5-1 trading plan adopted by Brian Lieser on August 11, 2025, indicating it was pre-arranged under that plan.

How many BDC shares does Brian Lieser hold directly after the transaction?

Following the reported sale, Brian Lieser held 31,144 shares of Belden Inc. common stock directly, as stated in the Form 4’s post-transaction holdings.

What indirect BDC holdings does Brian Lieser report?

He reports 636.2114 shares of Belden Inc. common stock held indirectly through the Belden Retirement Savings Plan, representing the plan balance as of the filing date.

What is Brian Lieser’s role at BDC in this Form 4?

In the Form 4, Brian Lieser is identified as an officer of Belden Inc., serving as EVP - Chief Comm. Officer at the time of the reported transactions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 09/16/2026 - 05:47 PM Accepted by SEC EDGAR 09/16/2026 - 05:47 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).

X

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^*

Lieser Brian

(Last) (First) (Middle)

C/O BELDEN INC.

1 N. BRENTWOOD BLVD., 15TH FLOOR

(Street)

ST. LOUIS MISSOURI 63105

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BELDEN INC. [ BDC ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP - Chief Comm. Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/15/2026

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

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

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

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	09/15/2026		S(1)		1,900	D	$114.39	31,144	D
Common Stock								636.2114(2)	I	By 401(k) Plan

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 sale reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Lieser on August 11, 2025.

2. Represents the balance of shares of Belden Inc. common stock held in the Belden Retirement Savings Plan as of the date of this filing.

	/s/ Brian E. Anderson, attorney-in-fact for Brian Lieser	09/16/2026
	** 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.
* Form 4: SEC 1474 (03-26)