Debt

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Debt

Debt

Loan and Security Agreement

On April 29, 2022, the Company entered into a Loan Agreement with Hercules Capital, Inc. (“Hercules”) (as amended, the “Loan Agreement”). The Loan Agreement provided the Company with a term loan facility of up to $50.0 million, subject to certain terms and conditions. The Company borrowed the initial tranche of $20.0 million on April 29, 2022. On October 17, 2022, the Company borrowed an additional $20.0 million.

The Loan Agreement included a minimum liquidity financial covenant whereby the Company was required to maintain at least $60.0 million of cash in deposit accounts that are subject to an account control agreement in favor of Hercules.

On February 10, 2023, the Company, entered into the Third Amendment, which amended the Loan Agreement to (i) increase the existing debt baskets for (a) purchase money debt and capital leases, and (b) letter of credit obligations, (ii) provide for increased flexibility to maintain cash in non-US accounts, and (iii) provide for increased flexibility to relocate certain equipment.

Advances under the Loan Agreement bore interest at the rate of interest equal to greater of either (i) (x) the prime rate as reported in The Wall Street Journal plus (y) 6.15%, and (ii) 9.40%, subject to compliance with financial covenants and other conditions. The Loan Agreement included covenants, limitations, and events of default customary for similar facilities.

In connection with the Loan Agreement, the Company paid the lender a cash facility and legal fees of $0.6 million and incurred debt issuance costs to third parties that were directly related to issuing debt in the amount of $0.3 million. The effective interest rate on this debt was 17.90% after giving effect to the debt discount, debt issuance costs and the end of term charge. Amortization expense included in the interest expense related to debt discount and debt issuance costs of the Loan Agreement was not material for the year ended December 31, 2023.

On October 25, 2023, the Loan Agreement was repaid with proceeds of the loans drawn under the Credit Agreement (as defined below) with UBS Bank USA and UBS Financial Services Inc. resulting in a loss on extinguishment of debt of $3.6 million and recorded it as interest expense in its consolidated statements of operations and comprehensive loss for the twelve months ended December 31, 2023.

Revolving Credit

On October 25, 2023, the Company entered into the Credit Line Account Application and Agreement for Organizations and Businesses (the “Credit Agreement”) and the Addendum to Credit Line Account Application and Agreement (the “Addendum”; and the Credit Agreement as amended, modified, and/or supplemented by the Addendum, the “UBS Agreement”) by and among the Company, UBS Bank USA (the “Bank”), and UBS Financial Services Inc. The facility under the UBS Agreement matures and terminates on August 2, 2025 (the “Maturity Date”).

The UBS Agreement provides the Company with a revolving credit line of up to $45.0 million, subject to certain terms and conditions. The Company borrowed $44.0 million on October 25, 2023, and all of the proceeds were used to prepay and terminate the Company’s Loan Agreement on October 25, 2023. The Company recognized constructive financing cash outflows and financing cash inflows on the statement of cash flows of $44.0 million, even though no funds were actually paid or received.

Pursuant to the terms of the UBS Agreement, the Company has agreed to maintain minimum liquidity, that can be comprised of unencumbered cash and cash equivalents, U.S. treasuries and other assets acceptable to the Bank, of $52.0 million in an account maintained with the Bank or its affiliates at all times. As of March 31, 2024, the Company is in compliance with this minimum liquidity requirement within the loan agreement.

Loans under the UBS Agreement bear interest at a rate equal to (x) for variable rate loans, the sum of (i) the applicable SOFR average plus 0.110%, plus (ii) 1.20%, and (y) for fixed rate loans, the sum of either (1) CME Term Rate or (2) the U.S. Treasury Rate, as applicable and as defined in the UBS Agreement, as determined based on the duration of the advance, plus the applicable liquidity premium with a range of 0.15% to 0.50%, as set forth in the UBS Agreement. Interest payments are due (x) for variable rate loans, on the last day of each calendar month, and on each date that any portion of the principal amount is due, including on the Maturity Date, and (y) for fixed rate loans, on the last day of the applicable interest period, and on each date that any portion of the principal amount is due, including on the Maturity Date. The Company may repay any variable rate loans at any time in whole or in part, without penalty. The Company may repay any fixed rate loans in whole, but not in part, subject to certain breakage costs.

The Company has agreed to pay an unused line fee in an amount equal to (i) the commitment amount of $45.0 million less the average daily balance of the sum of the principal amount of the obligations outstanding during the preceding calendar quarter, multiplied by (ii) 0.50% per annum, and such unused line fee is payable quarterly in arrears on the last day of each calendar quarter.

The UBS Agreement also contains affirmative and negative covenants customary for a credit line of this type, including requirements for maintenance of the collateral accounts and certain limitations on withdrawal of cash from such collateral accounts. The UBS Agreement also provides for customary events of default, including, among others, non-payment, failure to maintain an amount equal to the greater of (x) the outstanding loans and (y) the collateral value as determined by the Bank, in the securities accounts maintained with the Bank, bankruptcy, or breach of a covenant, representation and warranty.

As of March 31, 2024, the Company was in compliance with the covenants set forth in the UBS Agreement.