Key facts
- This page summarizes Brian Lieser's Form 4 filing for BELDEN INC. (BDC).
- 10 reported transactions and 3 derivative rows are listed below.
- Accepted by SEC: 08 Dec 2025, 16:49.
Brian Lieser - 04 Dec 2025 Form 4 Insider Report for BELDEN INC. (BDC)
- Reporting relationship
- EVP, Solutions
- Issuer ticker
- BDC
- Reported as of
- 04 Dec 2025
- Net transaction value
- -$281,607
- SEC form
- 4
- Accepted by SEC
- 08 Dec 2025, 16:49:17 UTC
- Prior SEC filing
- 04 Dec 2025
- Next SEC filing
- 12 Jan 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Brian E. Anderson, attorney-in-fact for Brian Lieser
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Brian Lieser filed Form 4 for BELDEN INC. (BDC) on 08 Dec 2025.
Change
- Previous filing in this sequence was filed on 04 Dec 2025.
- Current net transaction value: -$281,607.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001967061
Primary reporting owner
Lieser Brian
- Relationship
- EVP, Solutions
- Address
- C/O BELDEN INC., 1 N. BRENTWOOD BLVD., 15TH FLOOR, ST. LOUIS
- Signature
- /s/ Brian E. Anderson, attorney-in-fact for Brian Lieser
- Signature date
- 08 Dec 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
BDC
transaction
Common Stock
Options Exercise
- Transaction value
- $135,336
- Shares
- +2,516
- Change %
- +8.7%
- Price
- $53.79
- Shares after
- 31,590
- Date
- 04 Dec 2025
- Ownership
- Direct
- Footnotes
- F1
BDC
transaction
Common Stock
Disposed to Issuer
- Transaction value
- $212,303
- Shares
- -1,759
- Change %
- -5.6%
- Price
- $120.70
- Shares after
- 29,831
- Date
- 04 Dec 2025
- Ownership
- Direct
- Footnotes
- F3
BDC
transaction
Common Stock
Options Exercise
- Transaction value
- $90,641
- Shares
- +1,210
- Change %
- +4.1%
- Price
- $74.91
- Shares after
- 31,041
- Date
- 04 Dec 2025
- Ownership
- Direct
- Footnotes
- F1
BDC
transaction
Common Stock
Disposed to Issuer
- Transaction value
- $115,988
- Shares
- -961
- Change %
- -3.1%
- Price
- $120.70
- Shares after
- 30,080
- Date
- 04 Dec 2025
- Ownership
- Direct
- Footnotes
- F4
BDC
transaction
Common Stock
Options Exercise
- Transaction value
- $89,094
- Shares
- +1,225
- Change %
- +4.1%
- Price
- $72.73
- Shares after
- 31,305
- Date
- 04 Dec 2025
- Ownership
- Direct
- Footnotes
- F1
BDC
transaction
Common Stock
Disposed to Issuer
- Transaction value
- $115,988
- Shares
- -961
- Change %
- -3.1%
- Price
- $120.70
- Shares after
- 30,344
- Date
- 04 Dec 2025
- Ownership
- Direct
- Footnotes
- F5
BDC
transaction
Common Stock
Sale
- Transaction value
- $152,400
- Shares
- -1,270
- Change %
- -4.2%
- Price
- $120.00
- Shares after
- 29,074
- Date
- 05 Dec 2025
- Ownership
- Direct
- Footnotes
- F6
BDC
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 505
- Date
- 04 Dec 2025
- Ownership
- By 401(k) Plan
- Footnotes
- F2
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
BDC
transaction
Derivative
Stock Appreciation Rights
Options Exercise
- Transaction value
- $0
- Shares
- -1,210
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 04 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,210
- Exercise price
- $74.91
- Footnotes
- F1, F7
BDC
transaction
Derivative
Stock Appreciation Rights
Options Exercise
- Transaction value
- $0
- Shares
- -1,225
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 04 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,225
- Exercise price
- $72.73
- Footnotes
- F1, F7
BDC
transaction
Derivative
Stock Appreciation Rights
Options Exercise
- Transaction value
- $0
- Shares
- -2,516
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 04 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 2,516
- Exercise price
- $53.79
- Footnotes
- F1, F7
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Rule 10b5-1 trading plan
These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.
Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).
Explanation of responses 7 footnotes
Footnote F1
The exercise reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Lieser on August 11, 2025.
Footnote 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.
Footnote F3
This represents the difference between the number of SARs exercised (2,516) and the number of shares issued as a result of the exercise (757). The number of shares to be issued under a SAR exercise is determined by multiplying the number of SARs being exercised by the difference between the FMV on the date of exercise ($120.695) and the exercise price ($53.79). Additional shares were then withheld to satisfy the Company's tax withholding obligations.
Footnote F4
This represents the difference between the number of SARs exercised (1,210) and the number of shares issued as a result of the exercise (249). The number of shares to be issued under a SAR exercise is determined by multiplying the number of SARs being exercised by the difference between the FMV on the date of exercise ($120.695) and the exercise price ($74.91). Additional shares were then withheld to satisfy the Company's tax withholding obligations.
Footnote F5
This represents the difference between the number of SARs exercised (1,225) and the number of shares issued as a result of the exercise (264). The number of shares to be issued under a SAR exercise is determined by multiplying the number of SARs being exercised by the difference between the FMV on the date of exercise ($120.695) and the exercise price ($72.73). Additional shares were then withheld to satisfy the Company's tax withholding obligations.
Footnote F6
The sale reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Lieser on August 11, 2025.
Footnote F7
The original grant of stock appreciation rights became exercisable in equal portions on the first three anniversaries of the grant date.