The Company has entered into various research, development, license and supply agreements with Serum Institute and Pharmsynthez, each a related party whose relationship, ownership, and nature of transactions is disclosed within other sections of these footnotes. Please refer to Note 4, Significant Strategic Collaborations, and Note 7, Other Assets, for details on arrangements with collaboration partners that are also related parties.

During the fourth quarter of 2019, the Company entered into a loan agreement with Pharmsynthez (the “Pharmsynthez Loan”), pursuant to which the Company advanced Pharmsynthez an aggregate principal amount of up to $500,000 to be used for the development of a specific product under the Company’s Co-Development Agreement with Pharmsynthez. The Pharmsynthez Loan had a term of 15-months and accrued interest at a rate of 10% per annum. The Pharmsynthez Loan is guaranteed by all of the operating subsidiaries of Pharmsynthez, including SynBio and AS Kevelt (“Kevelt”), and is secured by all of the common and preferred stock of the Company owned by Pharmsynthez and SynBio. The Company recognized approximately $9,000 and $48,000 of interest income related to this loan during the twelve-months ended December 31, 2022 and 2021, respectively.  

Effective January 23, 2021, the Company entered into a First Amendment to Loan Agreement and Other Loan Documents with Pharmsynthez, Kevelt and SynBio (the “Pharmsynthez Loan Extension”) to modify the repayment terms and maturity of the Pharmsynthez Loan to January 2022. The terms of the Pharmsynthez Loan Extension called for two (2) equal monthly principal payments of $25,000 in each of January 23, 2021 and February 28, 2021 and the payment of all outstanding accrued interest in six (6) equal monthly installments from January 31, 2021 through June 30, 2021. In addition, the Pharmsynthez Loan Extension required monthly interest payments and the repayment of the remaining principal amount in six (6) equal monthly installments from August 2021 through January 2022.

Effective August 31, 2021, the Company entered into a Second Amendment to Loan Agreement and Other Loan Documents with Pharmsynthez, Kevelt and SynBio (the “Second Pharmsynthez Loan Extension”) to modify the repayment terms and maturity of the Pharmsynthez Loan to July 2022. The terms of the Second Pharmsynthez Loan Extension called for an upfront fee of $12,500 and two (2) equal monthly principal payments of $25,000 on September 30, 2021 and October 31, 2021. In addition, the Second Pharmsynthez Loan Extension required monthly interest payments and the repayment of the remaining principal amount in six (6) equal monthly installments from February 2022 through July 2022. All other terms of the Pharmsynthez Loan, as amended, remained in effect. All required payments under the Second Pharmsynthez Loan Extension had been made through January 31, 2022. In February 2022, the Company received a request from Pharmsynthez to further extend the principal repayments and the maturity of the loan.

The Company entered into a Third Amendment to Loan Agreement and Other Loan Documents with Pharmsynthez, Kevelt and SynBio dated October 31, 2022 (the “Third Pharmsynthez Loan Extension”) primarily to modify the repayment terms and maturity of the Pharmsynthez Loan to May 31, 2023. The terms of the Third Pharmsynthez Loan Extension require certain payments of principal, interest and fees at the signing of the Third Pharmsynthez Loan Extension. In addition, the Third Pharmsynthez Loan Extension requires the repayment of the remaining principal amount, plus interest, in seven (7) monthly installments from November 30, 2022 through May 31, 2023 as well as certain other terms and conditions. All other terms of the Pharmsynthez Loan, as amended, remained in effect. While Pharmsynthez has made certain payments in accordance with the Third Pharmsynthez Loan Extension, all principal and interest payments required to date under the Third Pharmsynthez Loan Extension have not been made. As a result, the Company has classified the loan receivable as long-term as of December 31, 2022 and 2021. The Company assessed the collectability of the loan and determined that the U.S.-based collateral held by the Company, consisting of all of the common and preferred stock of the Company owned by Pharmsynthez and SynBio, was adequate to support the repayment of the outstanding principal balance. As of December 31, 2022 and 2021, approximately $0.4 million was included in other assets on the consolidated balance sheet.

In April 2022, the Company entered into certain agreements with CLS as described in Note 5. One of the Company’s directors, Roger Kornberg, is a member of the scientific advisory board of CLS. However, Mr. Kornberg does not own any equity of CLS and is not receiving any economic benefit as a result of the transactions contemplated by such agreements. Mr. Adam Logal, one of our directors, is Senior Vice President, Chief Financial Officer, Chief Accounting Officer and Treasurer of OPKO.