Under the terms of the Indenture, we may, at our option, at any time and from time to time, on or after June 30, 2021, in the case of the June 2024 Notes, November 7, 2021, in the case of the December 2024 Notes, September 4, 2022, in the case of the 2025 Notes, December 20, 2023, in the case of the 2026 Notes, and March 9, 2024, in the case of the 2027 Notes, redeem such notes, in whole or in part, at a redemption price equal to 100% of the outstanding principal amount thereof plus accrued and unpaid interest to, but excluding, the date fixed for redemption. On and after any redemption date, interest will cease to accrue on the redeemed notes.
Our secured indebtedness includes the Churchill Facility, the Wells Fargo Loan and the NHB Mortgage (each as described below).
On July 21, 2021, we consummated a $200 million facility (the “Churchill Facility”) with Churchill MRA Funding I LLC (“Churchill”). Under the terms of the Churchill Facility, we have the right, but not the obligation, to sell mortgage loans to Churchill, and Churchill has the right, but not the obligation, to purchase those loans. In addition, we have the right and, in some instances the obligation, to repurchase those loans from Churchill. The amount that Churchill will pay for each mortgage loan it purchases will vary based on the attributes of the loan and various other circumstances but generally will not exceed 70% of the unpaid principal balance purchased. The repurchase price is calculated by applying an interest factor, as defined, to the purchase price of the mortgage loan. We also granted Churchill a first priority security interest on the mortgage loans sold to Churchill to secure our repurchase obligation. The cost of capital under the Churchill Facility is equal to the sum of (a) the greater of (i) 0.25% and (ii) the 30-day LIBOR plus (b) 3% - 4%, depending on the aggregate principal amount of the mortgage loans held by Churchill at that time. Our obligations under the Churchill Facility are secured by a lien on the mortgage loans sold to Churchill. (After the 30-day LIBOR is phased out a new benchmark rate, determined by Churchill, will be used instead.) The Churchill Facility is also subject to various terms and conditions, including representations and warranties, covenants and agreements typically found in these types of financing arrangements, including a covenant that prohibits us from (A) (i) paying any dividend or make any distribution in excess of 90% of our taxable income, (ii) incurring any indebtedness or (iii) purchasing any shares of our capital stock, unless, in any case, we have an asset coverage ratio of at least 150%; and (B) have unencumbered cash and cash equivalents in an amount equal to or greater than 2.50% of the amount of our repurchase obligations. Churchill has the right to terminate the Churchill Facility at any time upon 180 days prior notice to us. At such time, we have an additional 180 days after termination to repurchase all the mortgage loans held by Churchill. We believe the Churchill Facility gives us the ability to raise capital as needed at a relatively low rate. It also gives us the flexibility to seek other sources of funding. At March 31, 2022, the amount outstanding under the Churchill Facility was approximately $26.9 million, which amount was accruing interest of an effective rate of 4.70% per annum.
In 2020, we established a margin loan account with Wells Fargo that allows us to borrow against our investment securities portfolio (the “Wells Fargo Loan”). The Wells Fargo Loan is secured by our portfolio of short-term securities, had a balance of approximately $23.3 million at March 31, 2022. The outstanding balance on this loan bears interest at a rate equal to 1.75% below the prime rate. The interest rate at March 31, 2022 was 1.75%.
In 2021, we obtained a new adjustable-rate mortgage loan from New Haven Bank for up to a maximum principal amount of $1.4 million (the “NHB Mortgage”) of which $750,000 is outstanding as of December 31, 2021. The purpose of the NHB Mortgage is to fund the cost of our acquisition and renovation of the property located at 568 East Main Street, Branford, Connecticut, which, once renovated, will become our new corporate headquarters. The balance of the NHB Mortgage will be funded when those renovations are completed. The NHB Mortgage accrues interest at an initial rate of 3.75% per annum for the first 72 months and is due and payable in full on December 1, 2037. During the first 12 months, from December 1, 2021 to November 30, 2022, only interest will be due and payable. Beginning on December 1, 2022 and through December 1, 2037 (the “Amortization Period”), principal and interest will be due and payable on a monthly basis. All payments under the NHB Mortgage are amortized based on a 20-year amortization schedule. The interest rate will be adjusted on each fifth anniversary of the commencement of the Amortization Period to the then published 5-year Federal Home Loan Bank of Boston Classic Advance Rate, plus 2.60%. The NHB Mortgage is a non-recourse loan, secured by a first mortgage lien on 698 Main Street, Branford, Connecticut, our current corporate headquarters, and 568 East Main Street, Branford, Connecticut. Once the NHB Mortgage is fully funded, the mortgage lien on 698 Main Street will be released.
In addition to the foregoing, in June 2021 and July 2021, we raised aggregate net proceeds of approximately $45.5 million (after deducting underwriting discounts and commissions and offering expenses) from the sale of 1,903,000 shares of our Series A Preferred Stock in a firm commitment underwritten public offering at a public offering price of $25.00 per share, equal to the liquidation preference. The Series A Preferred Stock is listed on the NYSE American and began trading under the symbol “SACHPRA” on July 6, 2021.