9. NOTES PAYABLE

D&O Financing

In November 2019, the Company entered into a loan agreement with a financing company for $963,514 to finance one of the Company’s insurance policies. The terms of the loan stipulate equal monthly payments of principal and interest payments of $109,413 over a nine-month period. Interest accrued on this loan at an annual rate of 5.25%. This loan was fully repaid in July 2020.

In November 2020, the Company entered into a loan agreement with a financing company for $909,375 to finance one of the Company’s insurance policies. The terms of the loan stipulate equal monthly payments of principal and interest payments of $103,112 over a nine-month period. Interest accrues on this loan at an annual rate of 4.89%. Prepaid expenses as of September 30, 2021 and December 31, 2020, included approximately $101,042 and $1,010,000, respectively, related to the underlying insurance policy being financed. This loan was fully repaid in July 2021.

Loan and Security Agreement with K2 HealthVentures LLC

On July 28, 2020, the Company, with its subsidiary, Corbus Pharmaceuticals, Inc., as borrower, entered into a $50,000,000 secured Loan and Security Agreement with K2 HealthVentures LLC (“K2HV”), an unrelated third party (the “Loan Agreement”) and received the first $20,000,000 tranche upon signing. The second tranche of $20,000,000 and the third tranche of $10,000,000 will be made available at the Company’s option subject to the achievement of certain clinical and regulatory milestones. The loan matures on August 1, 2024 and the Company is obligated to make interest only payments for the first 24 months and then interest and equal principal payments for the next 24 months. Interest accrues at a variable annual rate equal to the greater of (i) 8.5% and (ii) the rate of interest noted in The Wall Street Journal, Money Rates section, as the “Prime Rate” plus 5.25%, in each case, subject to a step-down of 25 basis points upon the funding of the second tranche. The interest rate used at September 30, 2021 was 8.5%.

K2HV may elect to convert up to $5,000,000 of the outstanding loan into common stock at a conversion price of $9.40 per share.

In connection with the Loan Agreement, on July 28, 2020, the Company issued to the Lenders (as defined in the Loan Agreement) a warrant to purchase up to 86,206 common shares (the “K2 Warrant”) at an exercise price of $6.96 (the “Warrant Price”). The K2 Warrant may be exercised either for cash or on a cashless “net exercise” basis and expires on July 28, 2030. The total proceeds attributed to the K2 Warrant was approximately $472,000 based on the relative fair value of the K2 Warrant as compared to the sum of the fair values of the K2 Warrant, prepayment feature, default feature, and debt. Total proceeds attributed to the prepayment and default features was approximately $546,000. The Company also incurred approximately $1,244,000 of debt issuance costs and is required to make a final payment equal to approximately $1,190,000. See Note 14 for more detail on assumptions used in the valuation of the K2 Warrant and see Note 15 for more information on the assumptions used in valuation of the default and prepayment features.

The total principal amount of the loan under the Loan Agreement outstanding at September 30, 2021, including the $1,190,000 final payment discussed above, is $21,190,000.

Upon the occurrence of an Event of Default (as defined in the Loan Agreement), and during the continuance of an Event of Default, the applicable rate of interest, described above, will be increased by 5.00% per annum. The secured term loan maturity date is August 1, 2024, and the Loan Agreement includes both financial and non-financial covenants. The Company was in compliance with these covenants as of September 30, 2021. The obligations under the Loan Agreement are secured on a senior basis by a lien on substantially all of the assets of the Company and its subsidiaries. The subsidiaries of the Company are guarantors of the obligations of the Company under the Loan Agreement.

The total debt discount related to Lenders of approximately $2,262,000 is being charged to interest expense using the effective interest method over the term of the debt. At September 30, 2021 and December 31, 2020, the fair value of our outstanding debt, which is considered level 3 in the fair value hierarchy, is estimated to be approximately $18,551,000 and $18,029,000, respectively. Interest expense for the three months ended September 30, 2021 was approximately $686,000 and was $2,016,000 for the nine months ended September 30, 2021. Interest expense was approximately $460,000 for the three and nine months ended September 30, 2020.