0001104659-26-093347 Sample Contracts

ASSET PURCHASE AGREEMENT By and Between XRN Alexandria i llc, a delaware limited liability company, as “PURCHASER”, and SILVERSTONE ALEXANDRIA II OWNER, LLC A DELAWARE LIMITED LIABILITY COMPANY, AS “SELLER” Dated: May 1, 2026
Asset Purchase Agreement • August 10th, 2026 • Chiron Real Estate Inc. • Real estate investment trusts • Virginia

THIS ASSET PURCHASE AGREEMENT (this “Agreement”), dated as of this 1st day of May, 2026 (the “Effective Date”), is made and entered into by and between XRN ALEXANDRIA I LLC, a Delaware limited liability company (“Purchaser”), and SILVERSTONE ALEXANDRIA II OWNER, LLC, a Delaware limited liability company (“Seller”).

FIRST AMENDMENT TO ASSET PURCHASE AGREEMENT
Asset Purchase Agreement • August 10th, 2026 • Chiron Real Estate Inc. • Real estate investment trusts • Maryland

THISFIRSTAMENDMENTTOASSETPURCHASEAGREEMENT(this “Amendment”) is entered into as of June 22, 2026 (the “Amendment Effective Date”) by and between SILVERSTONE BETHESDA OWNER, LLC, a Delaware limited liability company (“Seller”) and XRN BETHESDA, LLC, a Delaware limited liability company (“Purchaser”) (each a “Party” and, collectively, the “Parties”).

PSA SIDE LETTER AGREEMENT
Psa Side Letter Agreement • August 10th, 2026 • Chiron Real Estate Inc. • Real estate investment trusts

This PSA SIDE LETTER AGREEMENT (this “Side Letter Agreement”) is made as of May 1, 2026, by and between SSL INVESTMENT PARTNERS, L.P., a Delaware limited partnership (“SSL”) and XRN ALEXANDRIA II LLC, a Delaware limited liability company (“Purchaser”). SSL and Purchaser are each a “Party” and are collectively the “Parties”.

FIRST AMENDMENT TO PURCHASE AND SALE Agreement
Purchase and Sale Agreement • August 10th, 2026 • Chiron Real Estate Inc. • Real estate investment trusts • Virginia

THIS FIRST AMENDMENT TO PURCHASE AND SALE Agreement (this “Amendment”) is entered into as of May 29, 2026 (the “Amendment Effective Date”) by and between SILVERSTONE ALEXANDRIA, LP, a Delaware limited partnership (“PropCo Seller”), SILVERSTONE ALEXANDRIA OWNER, LLC, a Delaware limited liability company (“OpCo Seller” and collectively with PropCo Seller, “Seller”) and XRN ALEXANDRIA II LLC, a Delaware limited liability company (“Purchaser”) (each a “Party” and, collectively, the “Parties”).

Contract
Purchase and Sale Agreement • August 10th, 2026 • Chiron Real Estate Inc. • Real estate investment trusts

Certain schedules and exhibits to this agreement have been omitted pursuant to Item 601(a)(5) of Regulation S-K because they do not contain information material to an investment or voting decision and such information is not otherwise disclosed in this agreement or the related filing. Certain personally identifiable or other private information has also been omitted from the filed version of this agreement. The registrant agrees to furnish supplementally a copy of any omitted schedule or exhibit to the Securities and Exchange Commission upon request.

FIRST AMENDMENT TO ASSET PURCHASE Agreement
Asset Purchase Agreement • August 10th, 2026 • Chiron Real Estate Inc. • Real estate investment trusts • Virginia

THIS FIRST AMENDMENT TO ASSET PURCHASE Agreement (this “Amendment”) is entered into as of May 29, 2026 (the “Amendment Effective Date”) by and between SILVERSTONE ALEXANDRIA II OWNER, LLC, a Delaware limited liability company (“Seller”) and XRN ALEXANDRIA I LLC, a Delaware limited liability company (“Purchaser”) (each a “Party” and, collectively, the “Parties”).