Anderson Brian Edward

SEC source: 0001193125-26-348759 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · EVP - Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,796

F1 · shares: Represents a bona fide gift of 1,310 shares of stock from the Reporting Person to a donor advised fund.

SEC source: 0001193125-26-342275 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · EVP - Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,106

F1 · shares: On August 7, 2026, Mr. Anderson gifted 385 shares to a charitable organization.

SEC source: 0001193125-26-297343 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · EVP - Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,491

F1 · shares: Shares acquired through the Belden Inc. 2021 Employee Stock Purchase Plan (the "Plan"). The Plan is broadly available to employees of Belden Inc. and its subsidiaries. Pursuant to the terms of the Plan, the purchase price is 85% of the lesser of (i) the price at the beginning of the offering period (January 1, 2026) or (ii) the price at the end of the offering period (June 30, 2026). Employees elect their level of participation and the purchases are funded via payroll deductions through the offering period.

SEC source: 0001193125-26-101726 · ownership.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · EVP - Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,278

F3 · shares: Shares withheld for tax purposes related to portion of March 7, 2023 restricted stock unit grant that vested on March 7, 2026. The resulting shares were delivered on March 11, 2026.

SEC source: 0001193125-26-101726 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · EVP - Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,485

F1 · shares: On March 7, 2023, the Reporting Person received a grant of 5,479 performance stock units ("PSUs"). Following the three-year performance period, a conversion factor of 1.055 was approved by the Company's Compensation Committee and applied to the PSUs, resulting in an award of 5,781 shares, subject to tax withholding. The number in this cell reflects the after-tax number of shares delivered to the Reporting Person on March 11, 2026.

SEC source: 0001193125-26-085621 · ownership.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · EVP - Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,251

F3 · shares: Pursuant to the Company's Stretch Achievement Share Award program, certain PSUs granted in 2022 and 2023 were subject to enhancement based on company performance from 2022 through 2024 (the "Prior PSUs") and the achievement of an adjusted earnings per share ("EPS") goal in 2025. Based on the Company's 2025 EPS of $7.54, for each share received in 2025 from the vesting and distribution of the Prior PSUs awardees received a supplemental distribution of 0.54 shares, subject to tax withholding. The number in this cell reflects the after-tax number of shares delivered to the Reporting Person on March 2, 2026.

SEC source: 0001193125-26-085621 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · EVP - Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,410

F1 · shares: Shares withheld for tax purposes related to portion of February 26, 2025 restricted stock unit grant that vested on February 26, 2026. The resulting shares were delivered on March 2, 2026.

SEC source: 0001193125-26-072010 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,921

F1 · shares: Shares withheld for tax purposes related to portion of February 21, 2024 restricted stock unit grant that vested on February 21, 2026. The resulting shares were delivered on February 25, 2026.

SEC source: 0001193125-26-081921 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · EVP - Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,825

F1 · shares: Represents a grant of RSUs granted by the Company's Compensation Committee on February 25, 2026. 25% of the RSUs will vest on February 25, 2027, 25% of the RSUs will vest on February 25, 2028 and 50% of the RSUs will vest on February 25, 2029. Additional terms apply in the event of the holder's termination, death, disability or retirement.

SEC source: 0001193125-25-205155 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,534

SEC source: 0000950170-25-096882 · ownership.xml · derivative · entry 5

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,854 shares

Expires 2027-02-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The exercise reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on February 24, 2025. No sale of the resulting shares is contemplated by the trading plan.

F6 · derivative.exercise_date: The original grant of stock appreciation rights became exercisable in equal portions on the first three anniversaries of the grant date.

SEC source: 0000950170-25-096882 · ownership.xml · nonDerivative · entry 3

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,574

F4 · kind: The sale reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on February 24, 2025.

F5 · price: This price represents the average sale price for multiple transactions on this line. The prices of the transactions reported on this line ranged from $130.00 to $131.07. Upon request by the SEC staff, the Issuer or a security holder of the Issuer, the Reporting Person will undertake to provide full information regarding the number of shares and prices at which transactions were effected.

SEC source: 0000950170-25-096882 · ownership.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 46,732

F3 · shares: This represents the difference between the number of SARs exercised (6,854) and the number of shares issued as a result of the exercise (1,597). 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 ($128.58) and the exercise price ($74.91). Additional shares were then withheld to satisfy the Company's tax withholding obligations.

SEC source: 0000950170-25-096882 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 51,989

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The exercise reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on February 24, 2025. No sale of the resulting shares is contemplated by the trading plan.

SEC source: 0000950170-25-095747 · ownership.xml · derivative · entry 4

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,257 shares

Expires 2028-02-28

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The exercise reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on February 24, 2025. No sale of the resulting shares is contemplated by the trading plan.

SEC source: 0000950170-25-095747 · ownership.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 45,135

F3 · shares: This represents the difference between the number of SARs exercised (7,257) and the number of shares issued as a result of the exercise (1,656). 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 ($123.05) and the exercise price ($72.73). Additional shares were then withheld to satisfy the Company's tax withholding obligations.

SEC source: 0000950170-25-095747 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 50,736

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The exercise reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on February 24, 2025. No sale of the resulting shares is contemplated by the trading plan.

SEC source: 0000950170-25-095235 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,479

F1 · shares: Shares acquired through the Belden Inc. 2021 Employee Stock Purchase Plan (the "Plan"). The Plan is broadly available to employees of Belden Inc. and its subsidiaries. Pursuant to the terms of the Plan, the purchase price is 85% of the lesser of (i) the price at the beginning of the offering period (January 1, 2025) or (ii) the price at the end of the offering period (June 30, 2025). Employees elect their level of participation and the purchases are funded via payroll deductions through the offering period.

SEC source: 0000950170-25-030192 · ownership.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,260

F3 · shares: Represents a grant of RSUs granted by the Company's Compensation Committee on February 26, 2025. 25% of the RSUs will vest on February 26, 2026, 25% of the RSUs will vest on February 26, 2027 and 50% of the RSUs will vest on February 26, 2028. Additional terms apply in the event of the holder's termination, death, disability or retirement.

SEC source: 0000950170-25-030192 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,500

F1 · shares: On February 22, 2022, the Reporting Person received a grant of 4,862 performance stock units ("PSUs"). Following the three-year performance period, a conversion factor of 1.935 was approved by the Company's Compensation Committee on February 26, 2025 and applied to the PSUs, resulting in an award of 9,408 shares, subject to tax withholding. The number in this cell reflects the after-tax number of shares delivered to the Reporting Person.

SEC source: 0000950170-25-027118 · ownership.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,237

F3 · shares: Shares withheld for tax purposes related to February 22, 2022 restricted stock unit grant that vested on February 24, 2025.

SEC source: 0000950170-25-027118 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,308

F1 · shares: Shares withheld for tax purposes related to portion of February 21, 2024 restricted stock unit grant that vested on February 21, 2025.

SEC source: 0000950170-25-004693 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,926

F1 · shares: Shares acquired through the Belden Inc. 2021 Employee Stock Purchase Plan (the "Plan"). The Plan is broadly available to employees of Belden Inc. and its subsidiaries. Pursuant to the terms of the Plan, the purchase price is 85% of the lesser of (i) the price at the beginning of the offering period (July 1, 2024) or (ii) the price at the end of the offering period (December 31, 2024). Employees elect their level of participation and the purchases are funded via payroll deductions through the offering period.

SEC source: 0000950170-24-121234 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,753

F1 · shares: On November 4, 2024, Mr. Anderson gifted 225 shares to a charitible organization.

SEC source: 0000950170-24-109291 · ownership.xml · derivative · entry 4

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,448 shares

Expires 2029-02-28

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The exercise reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on May 9, 2024. No sale of the resulting shares is contemplated by the trading plan.

SEC source: 0000950170-24-109291 · ownership.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,978

F3 · shares: This represents the difference between the number of SARs exercised (10,448) and the number of shares issued as a result of the exercise (2,623). 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 ($113.465) and the exercise price ($61.79). Additional shares were then withheld to satisfy the Company's tax withholding obligations.

SEC source: 0000950170-24-109291 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,803

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The exercise reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on May 9, 2024. No sale of the resulting shares is contemplated by the trading plan.

SEC source: 0000950170-24-099810 · ownership.xml · derivative · entry 5

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,769 shares

Expires 2026-02-24

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: The exercise reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on May 9, 2024. No sale of the resulting shares is contemplated by the trading plan.

F4 · derivative.exercise_date: 2,257 SARs became exercisable on February 24, 2017, 2,256 SARs became exercisable on February 24, 2018 and 2,256 SARs became exercisable on February 24, 2019.

SEC source: 0000950170-24-099810 · ownership.xml · nonDerivative · entry 3

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,355

F3 · shares: This represents the difference between the number of SARs exercised (6,769) and the number of shares issued as a result of the exercise (1,830). 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 ($103.8175) and the exercise price ($52.89). Additional shares are then withheld to satisfy the Company's tax withholding obligations.

SEC source: 0000950170-24-099810 · ownership.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,294

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: The exercise reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on May 9, 2024. No sale of the resulting shares is contemplated by the trading plan.

SEC source: 0000950170-24-099810 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,525

F1 · kind: The sale reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on May 9, 2024.

SEC source: 0000950170-24-098725 · ownership.xml · derivative · entry 4

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,535 shares

Expires 2025-02-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The exercise reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on May 9, 2024. No sale of the resulting shares is contemplated by the trading plan.

F3 · derivative.exercise_date: 1,845 SARs became exercisable on February 25, 2016, 1,845 SARs became exercisable on February 25, 2017 and 1,845 SARs became exercisable on February 25, 2018.

SEC source: 0000950170-24-098725 · ownership.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,188

F2 · shares: This represents the difference between the number of SARs exercised (5,535) and the number of shares issued as a result of the exercise (359). 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 ($101.24) and the exercise price ($89.23). Additional shares are then withheld to satisfy the Company's tax withholding obligations.

SEC source: 0000950170-24-098725 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,364

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The exercise reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on May 9, 2024. No sale of the resulting shares is contemplated by the trading plan.

SEC source: 0000950170-24-097708 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,829

F1 · kind: The sale reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on May 9, 2024.

F2 · price: This price represents the average sale price for multiple transactions on this line. The prices of the transactions reported on this line ranged from $100.00 to $101.29. Upon request by the SEC staff, the Issuer or a security holder of the Issuer, the Reporting Person will undertake to provide full information regarding the number of shares and prices at which transactions were effected.

SEC source: 0000950170-24-097315 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,385

F1 · kind: The sale reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on May 9, 2024.

F2 · price: This price represents the average sale price for multiple transactions on this line. The prices of the transactions reported on this line ranged from $95.075 to $98.21. Upon request by the SEC staff, the Issuer or a security holder of the Issuer, the Reporting Person will undertake to provide full information regarding the number of shares and prices at which transactions were effected.

SEC source: 0000950170-24-095405 · ownership.xml · nonDerivative · entry 3

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,647

F1 · kind: The sale reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on May 9, 2024.

SEC source: 0000950170-24-095405 · ownership.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,687

F1 · kind: The sale reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on May 9, 2024.

SEC source: 0000950170-24-095405 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,787

F1 · kind: The sale reported was effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Anderson on May 9, 2024.

F2 · price: This price represents the average sale price for multiple transactions on this line. The prices of the transactions reported on this line ranged from $95.00 to $95.23. Upon request by the SEC staff, the Issuer or a security holder of the Issuer, the Reporting Person will undertake to provide full information regarding the number of shares and prices at which transactions were effected.

SEC source: 0000950170-24-082633 · ownership.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,858

F1 · shares: Shares acquired through the Belden Inc. 2021 Employee Stock Purchase Plan (the "Plan"). The Plan is broadly available to employees of Belden Inc. and its subsidiaries. Pursuant to the terms of the Plan, the purchase price is 85% of the lesser of (i) the price at the beginning of the offering period (January 1, 2024) or (ii) the price at the end of the offering period (June 30, 2024). Employees elect their level of participation and the purchases are funded via payroll deductions through the offering period.

SEC source: 0001209191-24-003876 · doc4.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,772

F2 · shares: Represents a grant of RSUs granted by the Company's Compensation Committee on February 21, 2024. The RSUs will vest on or about February 21, 2027. Additional terms apply in the event of the holder's termination, death, disability or retirement.

SEC source: 0001209191-24-003876 · doc4.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,510

F1 · shares: On February 16, 2021, the Reporting Person received a grant of 6,662 performance stock units ("PSUs"). Following the three-year performance period, a conversion factor of 1.95 was approved by the Company's Compensation Committee on February 21, 2024 and applied to the PSUs, resulting in an award of 12,958 shares, subject to tax withholding. The number in this cell reflects the after-tax number of shares delivered to the Reporting Person.

SEC source: 0001209191-24-003596 · doc4.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,352

F1 · shares: Shares withheld for tax purposes related to February 16, 2021 restricted stock unit grant that vested on February 16, 2024.

SEC source: 0001209191-23-057055 · doc4.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,843

F1 · shares: On November 29, 2023, Mr. Anderson gifted 40 shares to a charitable organization.

SEC source: 0001209191-23-042147 · doc4.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,883

F1 · shares: Shares acquired through the Belden Inc. 2021 Employee Stock Purchase Plan (the "Plan"). The Plan is broadly available to employees of Belden Inc. and its subsidiaries. Pursuant to the terms of the Plan, the purchase price is 85% of the lesser of (i) the price at the beginning of the offering period (January 1, 2023) or (ii) the price at the end of the offering period (June 30, 2023). Employees elect their level of participation and the purchases are funded via payroll deductions through the offering period. The resulting shares were delivered to participants on July 12, 2023.

SEC source: 0001209191-23-041472 · doc4.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,541

F2 · shares: Shares withheld for tax purposes related to portion of July 2, 2020 restricted stock unit grant that vested on July 3, 2023.

SEC source: 0001209191-23-041472 · doc4.xml · nonDerivative · entry 1

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,889

F1 · shares: Shares withheld for tax purposes related to portion of July 1, 2020 restricted stock unit grant that vested on July 3, 2023.

SEC source: 0001209191-23-031929 · doc4.xml · derivative · entry 5

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 434 shares

Expires 2024-03-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-031929 · doc4.xml · nonDerivative · entry 3

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,232

F2 · shares: Shares withheld for tax purposes related to May 23, 2019 restricted stock unit grant that vested on May 23, 2023.

SEC source: 0001209191-23-031929 · doc4.xml · nonDerivative · entry 2

Anderson Brian Edward · CIK 0001632666 · SVP, Legal, GC and Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,172

F1 · shares: This represents the difference between the number of SARs exercised (434) and the number of shares issued as a result of the exercise (35). 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 ($85.455) and the exercise price ($72.57). Additional shares are then withheld to satisfy the Company's tax withholding obligations.