Form of Performance Stock Units Award

THIS PERFORMANCE STOCK UNIT AWARD AGREEMENT (this “Agreement”) is effective as of the date shown as the Date of Grant on the attached Notice of Award (the “Grant Date”) by and between Belden Inc., a Delaware corporation (the “Company”) and the individual shown as the Grantee on the attached Notice of Award (the “Grantee”).

WHEREAS, the Grantee is an executive or management employee of the Company, a subsidiary or an affiliate, and has been selected by the Compensation Committee (the “Committee”) of the Board of Directors of the Company (the “Board”) to receive a grant of the number of Performance Stock Units reflected on the attached Notice of Award (the “PSUs”) representing, subject to certain restrictions, a certain number of shares (the “Shares”) of the Company’s common stock, $0.01 par value per share (the “Common Stock”), such number to be based on the attainment of performance objectives and vesting conditions as provided below, and to enter into a Performance Stock Unit Agreement in the form hereof;

NOW THEREFORE, the Company and the Grantee hereby agree as follows:

1.GRANT OF PSUs. The Company hereby grants to the Grantee on the Grant Date the PSUs. Each PSU represents the right to receive between zero (0) and two (2) Shares depending on the attainment of Company performance objectives in accordance with Section 2 below. The Grantee shall have no direct or secured claim in any specific assets of the Company or the Shares to be issued to the Grantee under Section 6 hereof and will have the status of a general unsecured creditor of the Company. The PSUs are granted under the Company’s 2021 Long Term Incentive Plan (the “Plan”) and shall be subject to the terms and conditions of the Plan and this Agreement. Capitalized terms used in this Agreement without further definition shall have the same meanings given to such terms in the Plan.

2.PERFORMANCE OBJECTIVES; VESTING.

(a)Award Period; Performance Objectives. As described in detail below, the PSUs will be measured 50% based on relative total shareholder return (“TSR”) and 50% based on consolidated free cash flow (“FCF”). The award period (“Award Period”) during which performance shall be measured is the Grant Date through December 31, 2023 for the TSR-based PSUs and January 1, 2021 through December 31, 2023 for the FCF-based PSUs. The Committee has established a threshold, target and maximum for such Award Period for each of the TSR and FCF. The Company’s actual performance relative to the thresholds, targets and maximums will result in a conversion factor (the “Conversion Factor”). After the Award Period, the Committee shall apply the Conversion Factor to determine the number (if any) of Shares to be awarded for each PSU based on Company performance during the Award Period, which determination shall be final, conclusive and binding (the Shares that are so awarded are the “Shares”). In the event that the application of the Conversion Factor results in a fractional amount of a Share, the result will be rounded to the nearest whole number of Shares. The right of the Grantee to receive the Shares will vest and become nonforfeitable (“Vest”) on the later of (i) the Committee’s approval of the Conversion Factor and (ii) the third anniversary of the Grant Date.

(b)Death or Disability During Award Period. If, prior to the Performance Determination Date and while employed by the Company or one of its subsidiaries or affiliates, the Grantee dies or becomes disabled (and leaves the Company or one of its subsidiaries or affiliates) in accordance with any Company disability policy then in effect, then the Grantee (or, as the case may be, the person entitled by will or the applicable laws of descent and distribution) shall, after the Award Period, be entitled to receive a prorated portion of the Shares that would otherwise (but for such death or disability) be awarded to the Grantee after the Award Period pursuant to Section 2(a) above, such prorated portion being a fraction whose numerator shall be the number of days of the Grantee’s employment by the Company or one of its subsidiaries or affiliates during the Award Period prior to such death or disability and the denominator of which shall be one thousand ninety-six (1,096).

(c)Retirement During Award Period. If, prior to the Performance Determination Date and while employed by the Company or one of its subsidiaries or affiliates, the Grantee retires from employment with the Company or one of its subsidiaries or affiliates at a time that the Grantee has attained either (A) 55 years of age and 10 years of consecutive employment with the Company or (B) 65 years of age, then the right to receive any Shares resulting from the unvested PSUs shall immediately Vest in full. Notwithstanding the preceding sentence, the PSUs must be outstanding for a minimum holding period prior to the retirement date in order for the accelerated vesting to occur. For a grant vesting 100% in three years, this holding period shall be one year for the entire grant. For a grant vesting 100% in five years, this holding period shall be three years for the entire grant. Delivery of the resulting Shares, if any, shall be made according to the schedule indicated in Section 2(a).

(d)Other Employment Termination During Award Period. Except as otherwise described in this Section 2, if the Grantee’s employment with the Company or one of its subsidiaries or affiliates is otherwise terminated during the Award Period, any and all PSUs shall be forfeited, cancelled and terminated upon such termination. For purposes of this Agreement, the applicable termination date shall be Grantee’s final day actively performing his or her job duties, without regard to any severance or garden leave arrangement.

(e)Change in Control During Award Period. Immediately preceding the occurrence of a Change in Control of the Company (as defined in Section 10(d) below), any and all unvested PSUs shall be converted to restricted stock units (the “RSUs”) based on a Conversion Factor of 1.00. The RSUs shall then Vest according to the Vesting Schedule described on the attached Notice of Award. If the Grantee’s employment is terminated by the Company or one of its subsidiaries or affiliates without Cause (as defined in Section 10(e) below) (other than for death or disability) or by Grantee for Good Reason (as defined in Section 10(f) below), in either case, within two years following the Change in Control, any and all unvested RSUs shall immediately Vest in full. All vested RSUs shall be paid to the Grantee as provided in Section 5 hereof.

3.NATURE OF GRANT. In accepting the grant, the Grantee acknowledges, understands and agrees that:

(a)the Plan is established voluntarily by the Company, it is discretionary in nature and it may be modified, amended, suspended or terminated by the Company at any time, to the extent permitted by the Plan;

(b)the grant of the PSUs is voluntary and occasional and does not create any contractual or other right to receive future grants of PSUs, or benefits in lieu of PSUs, even if PSUs have been granted in the past;

(c)all decisions with respect to future PSUs or other grants, if any, will be at the sole discretion of the Committee;

(d)Nothing in this Agreement, the PSU grant or the Grantee’s participation in the Plan shall create a right to employment or confer upon the Grantee any right to continue in the employ of the Company, the Grantee’s employer (the “Employer”), or any subsidiary or affiliate for any period of specific duration or interfere with or otherwise restrict in any way the rights of the Company, the Employer or any subsidiary or affiliate, as applicable, or the rights of the Grantee, which rights are expressly reserved by each, to terminate the Grantee’s employment relationship (if any) at any time and for any reason, with or without cause;

(e)the Grantee is voluntarily participating in the Plan;

(f)the PSUs and the Shares are not intended to replace any pension rights or compensation;

(g)subject to Article 21.13 of the Plan, the PSUs and the Shares, and the income and value of same, are not part of normal or expected compensation for any purpose, including, without limitation, calculating any severance, resignation, termination, redundancy, dismissal, end-of-service payments, bonuses, long-service awards, pension or retirement or welfare benefits or similar payments;

(h)the future value of the underlying Shares is unknown, indeterminable and cannot be predicted with certainty;

(i)no claim or entitlement to compensation or damages shall arise from forfeiture of the PSUs or RSUs resulting from the termination of the Grantee’s employment relationship (for any reason whatsoever, whether or not later found to be invalid or in breach of employment laws in the jurisdiction where the Grantee is employed or the terms of the Grantee’s employment agreement, if any), and in consideration of the grant of the PSUs to which the Grantee is otherwise not entitled, the Grantee irrevocably agrees never to institute any such claim against the Company, any subsidiary or affiliate or the Employer, waives the Grantee’s ability, if any, to bring any such claim, and releases the Company, any subsidiary and affiliate and the Employer from any such claim; if, notwithstanding the foregoing, any such claim is allowed by a court of competent jurisdiction, then, by participating in the Plan, the Grantee shall be deemed irrevocably to have agreed not to pursue such claim and agree to execute any and all documents necessary to request dismissal or withdrawal of such claim;

(j)for purposes of the PSUs, the Grantee’s employment relationship will be considered terminated as described in Section 2(d) (regardless of the reason for such termination and whether or not later found to be invalid or in breach of employment laws in the jurisdiction where the Grantee is employed or the terms of the Grantee’s employment agreement, if any). The Board shall have the exclusive discretion to determine when the Grantee is no longer an Employee for purposes of the awarding of Shares (including whether the Grantee may still be considered to be an Employee while on an approved leave of absence); and

(k)the Grantee acknowledges and agrees that neither the Company, the Employer nor any subsidiary or affiliate shall be liable for any foreign exchange rate fluctuation between the Grantee’s local currency and the United States Dollar that may affect the value of the PSUs or of any amounts due to the Grantee pursuant to the settlement of the PSUs, or the subsequent sale of any Shares acquired upon the settlement of the PSUs.

4.NO TRANSFER OR ASSIGNMENT OF PSUs OR RSUs; RESTRICTIONS ON SALE. Except as otherwise provided in this Agreement, the PSUs, the RSUs and the rights and privileges conferred thereby shall not be sold, pledged or otherwise transferred (whether by operation of law or otherwise) and shall not be subject to sale under execution, attachment, levy or similar process until the Shares are delivered to the Grantee or his designated representative. The Grantee agrees not to sell any Shares at any time when applicable laws or Company policies prohibit a sale. This restriction shall apply as long as the Grantee is an employee of the Company or one of its subsidiaries or affiliates.

5.DELIVERY OF SHARES. As of the date on which the PSUs or RSUs Vest, the Company shall issue to the Grantee a stock certificate (or register the Shares in book-entry form) representing a number of Shares equal to the number of PSUs multiplied by the Conversion Factor (rounded to the nearest integer) or the number of RSUs then vested.

(a)Generally. The Grantee acknowledges that, regardless of any action taken by the Company or, if different, the Employer, the ultimate liability for all income tax, social insurance, payroll tax, fringe benefits tax, payment on account or other tax-related items related to the Grantee’s participation in the Plan and legally applicable to the Grantee (“Tax-Related Items”) is and remains the Grantee’s responsibility and may exceed the amount actually withheld by Company or the Employer. The Grantee further acknowledges that the Company and/or the Employer (a) make no representations or undertakings regarding the treatment of any Tax-Related Items in connection with any aspect of the PSUs, including, but not limited to, the grant of the PSUs, the grant, vesting or settlement of the PSUs, the subsequent sale of Shares acquired pursuant to such settlement and the receipt of any dividends; and (b) do not commit to and are under no obligation to structure the terms of the grant or any aspect of the PSUs to reduce or eliminate the Grantee’s liability for Tax-Related Items or achieve any particular tax result. Prior to any relevant taxable or tax withholding event, as applicable, the Grantee agrees to make adequate arrangements satisfactory to the Company and/or the Employer to satisfy all Tax-Related Items.

(b)Multiple Jurisdiction. If the Grantee is subject to Tax-Related Items in more than one jurisdiction between the Grant Date and the date of any relevant taxable or tax withholding event, as applicable, the Grantee acknowledges that the Company and/or the Employer (or former employer, as applicable) may be required to withhold or account for Tax-Related Items in more than one jurisdiction.

(c)Tax Withholding. The Grantee authorizes the Company and/or the Employer, or their respective agents, at their discretion, to satisfy the obligations with regard to all Tax-Related Items by one or a combination of the following:

(i)withholding from the Grantee’s wages or other cash compensation paid to the Grantee by the Company and/or the Employer;

(ii)withholding from proceeds of the sale of Shares acquired upon settlement of the PSUs either through a voluntary sale or through a mandatory sale arranged by the Company (on the Grantee’s behalf pursuant to this authorization without further consent); or

(iii)withholding in Shares to be issued upon settlement of the PSUs.

Depending on the withholding method, the Company may withhold or account for Tax-Related Items by considering applicable minimum statutory withholding rates or other applicable withholding rates, including maximum applicable rates, in which case the Grantee will receive a refund of any over-withheld amount in cash and will have no entitlement to the Common Stock equivalent. If the obligation for Tax-Related Items is satisfied by withholding in Shares, for tax purposes, the Grantee is deemed to have been issued the full number of Shares subject to the vested PSUs, notwithstanding that a number of the Shares are held back solely for the purpose of paying the Tax-Related Items. Further, the Grantee agrees to pay to the Company or the Employer any amount of Tax-Related Items that the Company or the Employer may be required to withhold or account for as a result of the Grantee’s participation in the Plan that cannot be satisfied by the means previously described. The Company may refuse to issue or deliver the Shares or the proceeds of the sale of Shares, if the Grantee fails to comply with the Grantee’s obligations in connection with the Tax-Related Items.

7.LEGALITY OF INITIAL ISSUANCE. No Shares shall be issued unless and until the Company has determined that:

(a)It and the Grantee, at the Company’s expense, have taken any actions required to register or qualify the Shares under the U.S. Securities Act of 1933, as amended or any local, state, federal or foreign securities law or rulings or regulations of the U.S. Securities and Exchange Commission (“SEC”) or of any other governmental regulatory body, that the Company shall, in its absolute discretion, deem necessary or advisable;

(b)Any applicable listing requirement of any stock exchange or other securities market on which the Common Stock is listed has been satisfied; and

(c)Any other applicable provision of local, state, federal or foreign laws and regulations have been satisfied, including but not limited to exchange control laws.

The Grantee understands that the Company is under no obligation to register or qualify the Shares with the SEC or any state or foreign securities commission or to seek approval or clearance from any governmental authority for the issuance or sale of the Shares. Further, the Grantee agrees that the Company shall have unilateral authority to amend the Plan and the Agreement without the Grantee’s consent to the extent necessary to comply with securities or other laws applicable to issuance of Shares.

8.DATA PRIVACY. The Grantee hereby explicitly and unambiguously consents to the collection, use and transfer, in electronic or other form, of the Grantee’s personal data as described in this Agreement and any other PSU grant materials by and among, as applicable, the Employer, the Company and any subsidiary and affiliate for the exclusive purpose of implementing, administering and managing the Grantee’s participation in the Plan.

9.NO ADVICE REGARDING GRANT. The Company is not providing any tax, legal or financial advice, nor is the Company making any recommendations regarding the Grantee’s participation in the Plan, or the Grantee’s acquisition or sale of the underlying Shares. The Grantee is hereby advised to consult with the Grantee’s own personal tax, legal and financial advisors regarding the Grantee’s participation in the Plan before taking any action related to the Plan.

10.MISCELLANEOUS PROVISIONS.

(a)Rights as a Stockholder. Neither the Grantee nor the Grantee’s representative shall have any rights as a stockholder with respect to any Shares underlying the PSUs until the date that the Company is obligated to deliver such Shares to the Grantee or the Grantee’s representative.

(b)No Dividend Equivalents. No dividends or dividend equivalents shall accrue on the PSUs.

(c)Anti-Dilution. In the event that any change in the outstanding Common Stock of the Company (including an exchange of Common Stock for stock or other securities of another corporation) occurs by reason of a Common Stock dividend or split, recapitalization, merger, consolidation, combination, exchange of Shares or other similar corporate changes, other than for consideration received by the Company therefor, the number of PSUs awarded hereunder and the number of resulting Shares, shall be appropriately adjusted by the Committee whose determination shall be conclusive, final and binding; provided, however that fractional Shares shall be rounded to the nearest whole share. In the event of any other change in the Common Stock, the Committee shall in its sole discretion determine whether such change equitably requires a change in the number or type of Shares subject to RSUs and any adjustment made by the Committee shall be conclusive, final and binding.

(d)Change in Control. A “Change in Control” of the Company shall be deemed to have occurred if any of the events set forth in any one of the following subparagraphs shall occur:

(i)The acquisition by any individual, entity or group (within the meaning of Section 13(d)(3) or 14(d)(2) of the U.S. Securities Exchange Act of 1934, as amended (the “Exchange Act”)) of beneficial ownership (within the meaning of Rule 13d-3 promulgated under the Exchange Act) of more than 50% of either (y) the then-outstanding shares of Common Stock of the Company (the “Outstanding Company Common Stock”) or (z) the combined voting power of the then-outstanding voting securities of the Company entitled to vote generally in the election of directors (the “Outstanding Company Voting Securities”); provided, however, that for purposes of this subsection (i), the following acquisitions shall not constitute a Change of Control: (1) any acquisition directly from the Company, (2) any acquisition by the Company, (3) any acquisition by any employee benefit plan (or related trust) sponsored or maintained by the Company or any corporation controlled by the Company, or (4) any acquisition by any corporation pursuant to a transaction which complies with clauses (1) and (2) of subsection (iii) of this definition;

(ii)Individuals who, as of the date hereof, constitute the Board (the “Incumbent Board”) cease for any reason to constitute at least a majority of the Board; provided, however, that any individual becoming a director subsequent to the date hereof whose election, or nomination for election by the Company’s stockholders, was approved by a vote of at least a majority of the directors then comprising the Incumbent Board shall be considered as though such individual were a member of the Incumbent Board;

(iii)Consummation of a reorganization, merger or consolidation or sale or other disposition of all or substantially all of the assets of the Company (a “Business Combination”), in each case, unless, following such Business Combination, (1) all or substantially all of the individuals and entities who were the beneficial owners, respectively, of the Outstanding Company Common Stock and Outstanding Company Voting Securities immediately prior to such Business Combination beneficially own, directly or indirectly, more than 50% of, respectively, the then-outstanding shares of common stock and the combined voting power of the then-outstanding voting securities entitled to vote generally in the election of directors, as the case may be, of the corporation resulting from such Business Combination (including, without limitation, a corporation which as a result of such transaction owns the Company or all or substantially all of the Company’s assets either directly or through one or more subsidiaries) in

substantially the same proportions as their ownership, immediately prior to such Business Combination, of the Outstanding Company Common Stock and Outstanding Company Voting Securities, as the case may be, and (2) at least a majority of the members of the board of directors of the corporation resulting from such Business Combination were members of the Incumbent Board at the time of the execution of the initial agreement, or of the action of the Board, providing for such Business Combination; or

(iv)Approval by the stockholders of the Company of a complete liquidation or dissolution of the Company.

(v)For purposes of clarification, the sale by the Company of a subsidiary or affiliate that employs Grantee shall not constitute a Change in Control if none of the events set forth in Sections 10(d)(i)-(iv) have occurred.

(e)Cause. “Cause” shall mean:

(i)Grantee’s willful and continued failure to perform substantially his duties owed to the Company or its affiliates after a written demand for substantial performance is delivered to him specifically identifying the nature of such unacceptable performance, which is not cured by Grantee within a reasonable period, not to exceed thirty (30) days;

(ii)Grantee is convicted of (or pleads guilty or no contest to) a felony or any crime involving moral turpitude; or

(iii)Grantee has engaged in conduct that constitutes gross misconduct in the performance of his employment duties.

An act or omission by Grantee shall not be “willful” if conducted in good faith and with Grantee’s reasonable belief that such conduct is in the best interests of the Company.

(i)Grantee’s base salary or annual target cash incentive opportunity is materially reduced;

(ii)Grantee’s duties or responsibilities are negatively and materially changed in a manner inconsistent with Grantee’s position (including status, offices, titles, and reporting responsibilities) or authority; or

(iii)The Company requires Grantee’s principal office to be relocated more than 50 miles from its location as of the date immediately preceding the Change in Control.

Prior to any termination by Grantee for “Good Reason,” Grantee shall provide the Company not less than thirty (30) nor more than ninety (90) days’ notice, with specificity, of the grounds constituting Good Reason and an opportunity within such notice period for the Company to cure such grounds. The notice shall be given within ninety (90) days following the initial existence of grounds constituting Good Reason for such notice and subsequent termination, if not so cured above, to be effective.

(g)Incorporation of Plan. The provisions of the Plan are incorporated by reference into these terms and conditions.

(h)Inconsistency. To the extent any terms and conditions herein conflict with the terms and conditions of the Plan, the terms and conditions of the Plan shall control.

(i)Notices. Any notice required by the terms of this Agreement shall be given in writing and shall be deemed effective upon personal delivery, upon deposit with the United States Postal Service, by registered or certified mail, with postage and fees prepaid or upon deposit with a reputable overnight courier. Notice shall be addressed to the Company at its principal executive office and to the Grantee at the address that he most recently provided to the Company.

(j)Entire Agreement; Amendments. This Agreement constitutes the entire contract between the parties hereto with regard to the subject matter hereof. This Agreement supersedes any other agreements, representations or understandings (whether oral or written and whether express or implied) which relate to the subject matter hereof. The Committee shall have authority, subject to the express provisions of the Plan, to interpret this Agreement and the Plan, to establish, amend and rescind any rules and regulations relating to the Plan, to modify the terms and provisions of this Agreement, to impose other requirements on Grantee where necessary or advisable for legal or administrative reasons, to require Grantee to sign additional agreements or undertakings to impose additional requirements and to make all other determinations in the judgment of the Committee necessary or desirable for the administration of the Plan. The Committee may correct any defect or supply any omission or reconcile any inconsistency in the Plan or in this Agreement in the manner and to the extent it shall deem necessary or desirable to carry it into effect. All action by the Committee under the provisions of this paragraph shall be final, conclusive and binding for all purposes.

(k)Governing Law; Venue. This Agreement shall be governed by, and construed in accordance with, the laws of the State of Delaware, as such laws are applied to contracts entered into and performed in such State, without giving effect to the choice of law provisions thereof. For purposes of litigating any dispute that arises under the grant or this Agreement, the parties hereby submit to and consent to the jurisdiction of the State of Missouri, agree that such litigation shall be conducted in the courts of the St. Louis County, or the federal courts for the United States for the Eastern District of Missouri, where this grant is made and/or to be performed.

(l)Successors.

(i)    This Agreement is personal to the Grantee and, except as otherwise provided in Section 5 above, shall not be assignable by the Grantee otherwise than by will or the laws of descent and distribution, without the written consent of the Company. This Agreement shall inure to the benefit of and be enforceable by the Grantee’s legal representatives.

(ii)    This Agreement shall inure to the benefit of and be binding upon the Company and its successors. It shall not be assignable except in connection with the sale or other disposition of all or substantially all the assets or business of the Company.

(m)Severability. If any provision of this Agreement for any reason should be found by any court of competent jurisdiction to be invalid, illegal or

unenforceable, in whole or in part, such declaration shall not affect the validity, legality or enforceability of any remaining provision or portion hereof, which remaining provision or portion hereof shall remain in full force and effect as if this Agreement had been adopted with the invalid, illegal or unenforceable provision or portion hereof eliminated.

(n)Headings. The headings, captions and arrangements utilized in this Agreement shall not be construed to limit or modify the terms or meaning of this Agreement.

(o)Counterparts. This Agreement may be executed simultaneously in one or more counterparts, each of which shall be deemed an original, but all of which shall constitute but one and the same instrument.

(p)Language. If the Grantee has received this Agreement or any other document related to the Plan translated into a language other than English and if the meaning of the translated version is different than the English version, the English version will control.

(q)Electronic Delivery and Acceptance. The Company may, in its sole discretion, decide to deliver any documents related to current or future participation in the Plan by electronic means. The Grantee hereby consents to receive such documents by electronic delivery and agree to participate in the Plan through an on-line or electronic system established and maintained by the Company or a third party designated by the Company.

(r)Insider Trading Restrictions/Market Abuse Laws. The Grantee acknowledges that, depending on the Grantee’s country of residence, the Grantee may be subject to insider trading restrictions and/or market abuse laws, which may affect the Grantee’s ability to acquire or sell Shares or rights to Shares (e.g., PSUs) under the Plan during such times as the Grantee is considered to have “inside information” regarding the Company (as defined by the laws in the Grantee’s country). Any restrictions under these laws or regulations are separate from and in addition to any restrictions that may be imposed under any applicable Company insider trading policy. The Grantee is responsible for complying with any applicable restrictions and are advised to speak with a personal legal advisor on this matter.

(s)Waiver. The Grantee acknowledges that a waiver by the Company of breach of any provision of this Agreement shall not operate or be construed as a waiver of any other provision of this Agreement, or of any subsequent breach by the Grantee or any other participant.

By accepting this grant, the Grantee hereby acknowledges receipt of this Agreement and accepts the PSUs granted hereunder, and further agrees to the terms and conditions hereinabove set forth.

1.    Participant Name: #ParticipantName#

2.    Number of Shares: #QuantityGranted#

3.    Option Price: N/A

4.    The Date of Grant: #GrantDate#

5.    The Expiration Date of the Option: N/A