EXECUTION VERSION Published CUSIP Numbers: Deal: 71404HAL9 Revolver: 71404HAM7 CREDIT AGREEMENT Dated as of

Dated as of August 24, 2021

PERKINELMER HEALTH SCIENCES, INC.,

PERKINELMER LIFE SCIENCES INTERNATIONAL HOLDINGS,

PERKINELMER GLOBAL HOLDINGS S. R.L,

PERKINELMER HEALTH SCIENCES B.V.

CERTAIN OTHER SUBSIDIARIES OF

BANK OF AMERICA, N.A.,

Administrative Agent, the Swing Line Lender and an L/C Issuer,

GOLDMAN SACHS BANK USA,

as Syndication Agent,

FARGO BANK, NATIONAL ASSOCIATION,

as Co-Documentation Agents,

The Other Lenders Party Hereto

The Other L/C Issuers Party

GOLDMAN SACHS BANK USA,

BANK OF AMERICA, N.A.,

FARGO BANK, NATIONAL ASSOCIATION,

as Joint Lead Arrangers and Joint Bookrunners

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This CREDIT AGREEMENT (as amended, amended and restated, modified, extended, restated, replaced or supplemented from time to time, and

including all schedules, exhibits and annexes hereto, this Agreement ) is entered into as of August 24, 2021 among PERKINELMER, INC., a Massachusetts corporation (the Company ), PERKINELMER HEALTH SCIENCES,

INC., a Delaware corporation ( Health Sciences ), PERKINELMER LIFE SCIENCES INTERNATIONAL HOLDINGS, a company incorporated and registered under the laws of England and Wales with registered number 04418157 (the UK

Borrower ), PERKINELMER GLOBAL HOLDINGS S. R.L., a private limited liability company (soci t responsabilit limit e) incorporated under the laws of Luxembourg, having its registered

office at 68-70 Boulevard de la P trusse, L-2320 Luxembourg-city, Luxembourg, registered with the Luxembourg Trade and Companies Register (registre de commerce

et des soci t s, Luxembourg) under number B217121 (the Luxembourg Borrower ), PERKINELMER HEALTH SCIENCES B.V., a private company with limited liability incorporated under the laws of the Netherlands (besloten

vennootschap met beperkte aansprakelijkheid) having its official seat (statutaire zetel) in Groningen, and its office at Groningen, Rigaweg 22 (9723TH), registered with the Dutch Trade Register of the Chamber of Commerce under number

02027119 (the Dutch Borrower ), certain other Subsidiaries of the Company from time to time party hereto pursuant to Section 2.14 (each, a Designated Borrower and collectively, the

Designated Borrowers ; the Designated Borrowers, together with the Company, Health Sciences, the UK Borrower, the Luxembourg Borrower and the Dutch Borrower, each a Borrower and collectively, the

Borrowers ), the Lenders, BANK OF AMERICA, N.A., as the Administrative Agent, the Swing Line Lender and an L/C Issuer, and the other L/C Issuers party hereto.

WHEREAS, the Borrowers have requested that the Lenders, the Swing Line Lender and the L/C Issuers make loans and other financial

accommodations to the Company and its Subsidiaries as set forth herein; and

WHEREAS, the Lenders, the Swing Line Lender and the L/C

Issuers have agreed to make such loans and other financial accommodations to the Company and its Subsidiaries, on the terms and subject to the conditions set forth herein.

In consideration of the mutual covenants and agreements herein contained, the parties hereto hereby covenant and agree as follows:

AND ACCOUNTING TERMS

Section 1.01 Defined Terms. As used in this Agreement, the following terms

shall have the meanings set forth below:

Acquisition means the acquisition by the Company or one or more of the

Company s wholly-owned subsidiaries of all of the outstanding equity interests of BioLegend, Inc. pursuant to the Acquisition Agreement.

Acquisition Agreement means that certain Agreement and Plan of Merger (including the exhibits, schedules and all related

documents thereto) dated as of July 25, 2021 among, the Company, Burton Acquisition I, Inc., Burton Acquisition II, Inc., the Target and Gene Lay, solely in his capacity as the stockholder representative, as amended, supplemented or otherwise

modified from time to time.

Additional Commitment Lender has the meaning specified in

Adjustment has the meaning specified in

Administrative Agent means Bank of America (or any of its designated branch

offices or affiliates) in its capacity as administrative agent under any of the Loan Documents, or any successor administrative agent.

Administrative Agent s Office means, with respect to any currency, the Administrative Agent s

address and, as appropriate, account as set forth on Schedule 11.02 with respect to such currency, or such other address or account with respect to such currency as the Administrative Agent may from time to time notify the Company and the

Administrative Questionnaire means an administrative questionnaire in a form supplied by the Administrative

Affected Financial Institution means (a) any EEA Financial Institution or (b) any UK Financial

Affiliate means, with respect to a specified Person, another Person that directly, or

indirectly through one or more intermediaries, Controls or is Controlled by or is under common Control with the Person specified.

Aggregate Commitments means the Commitments of all the Lenders. The Aggregate Commitments in effect on the Closing Date

equal ONE BILLION FIVE HUNDRED MILLION DOLLARS ($1,500,000,000).

Agreement has the meaning specified in the

introductory paragraph hereto.

Agreed Currency means Dollars or any Alternative Currency, as applicable.

Agreement Currency has the meaning specified in Section 11.18.

Alternative Currency means each of Euros, Yen, and Sterling, together with each other currency (other than Dollars) that is

approved in accordance with Section 1.05.

Alternative Currency Daily Rate means, for any

day, with respect to any Credit Extension:

(a) denominated in Sterling, the rate per annum equal to

SONIA determined pursuant to the definition thereof plus the SONIA Adjustment; and

in any other Alternative Currency (to the extent such Loans denominated in such currency will bear interest at a daily rate), the daily rate per annum as designated with respect to such Alternative Currency at the time such Alternative Currency is

approved by the Administrative Agent and the relevant Lenders pursuant to Section 1.05(a) plus the adjustment (if any) determined by the Administrative Agent and the relevant Lenders pursuant to

Section 1.05(a) in their reasonable discretion;

provided, that, if any Alternative Currency Daily Rate shall be less than

zero, such rate shall be deemed zero for purposes of this Agreement. Any change in an Alternative Currency Daily Rate shall be effective from and including the date of such change without further notice.

Alternative Currency Daily Rate Loan means a Committed Loan that bears interest at a rate based on the definition of

Alternative Currency Daily Rate. All Alternative Currency Daily Rate Loans must be denominated in an Alternative Currency.

Alternative Currency Equivalent means, at any time, with respect to any amount denominated in Dollars, the equivalent

amount thereof in the applicable Alternative Currency as determined by the Administrative Agent or the applicable L/C Issuer, as the case may be, at such time on the basis of the Spot Rate (determined in respect of the most recent Revaluation Date)

for the purchase of such Alternative Currency with Dollars.

Alternative Currency Loan means an Alternative Currency

Daily Rate Loan or an Alternative Currency Term Rate Loan, as applicable.

Alternative Currency Term Rate means, for

any Interest Period, with respect to any Credit Extension:

(a) denominated in Euros, the rate per

annum equal to the Euro Interbank Offered Rate ( EURIBOR ), as published on the applicable Reuters screen page (or such other commercially available source providing such quotations as may be designated by the Administrative Agent

from time to time) on the day that is two TARGET Days preceding the first day of such Interest Period with a term equivalent to such Interest Period;

(b) denominated in Yen, the rate per annum equal to the Tokyo Interbank Offer Rate

( TIBOR ), as published on the applicable Reuters screen page (or such other commercially available source providing such quotations as may be designated by the Administrative Agent from time to time) on the Rate Determination Date

with a term equivalent to such Interest Period; and

(c) denominated in any other Alternative

Currency (to the extent such Loans denominated in such currency will bear interest at a term rate), the term rate per annum as designated with respect to such Alternative Currency at the time such Alternative Currency is approved by the

Administrative Agent and the relevant Lenders pursuant to Section 1.05(a) plus the adjustment (if any) determined by the Administrative Agent and the relevant Lenders pursuant to Section 1.05(a) in

their reasonable discretion;

provided, that, if any Alternative Currency Term Rate shall be less than zero, such rate shall

be deemed zero for purposes of this Agreement.

Alternative Currency Term Rate Loan means a Committed Loan that bears

interest at a rate based on the definition of Alternative Currency Term Rate. All Alternative Currency Term Rate Loans must be denominated in an Alternative Currency.