I've just emailed the interim CEO asking about any debt...

I've just emailed the interim CEO asking about any debt covenants related to the Oxford LLC loan. From the 4C:

In August 2017, the Company borrowed $15,000,000 under a loan and security agreement with Oxford Finance LLC, or Oxford, which matures in August 2022. Interest is paid monthly on the principal amount at a variable rate equal to the greater of (a) the thirty day LIBOR rate, or (b) 0.99%, plus 7.26% per annum. The loan is secured by substantially all of our assets, excluding intellectual property, which is subject to a negative pledge in favor of Oxford. Under the terms of the agreement, interest-only payments are due monthly through September 2019, with principal payments commencing in October 2019, due in 35 equal monthly installments. If we are in compliance with certain financial milestones, the interest-only payments can be extended by twelve months through September 2020, in which case the principal payments would commence in October 2020, due in 23 equal monthly installments. A final fee of $1,200,000 is due at maturity (or acceleration or prepayment). Subject to a prepayment fee equal to between 0.5% to 2.0% of the principal amount of the prepaid amount, we can prepay the entire loan amount by providing a written five-day notice prior to such prepayment and paying all outstanding principal, interest, final payment fees and prepayment fees plus any default fees and all other sums that shall have become due and payable. In connection with the loan and security agreement, we granted warrants to Oxford for the purchase of 277,778 shares of common stock at $1.62 per share.