AFFO in the fourth quarter of 2021 was $310.8 million, an 11.0% increase over the prior year period. AFFO per share in the fourth quarter of 2021 was $2.81, a 12.9% increase over the prior year period, or 13.3% on a constant currency basis.
Investing Activities
During the fourth quarter of 2021, SBA acquired 59 communication sites for total cash consideration of $38.4 million. SBA also built 88 towers during the fourth quarter of 2021. As of December 31, 2021, SBA owned or operated 34,177 communication sites, 17,356 of which are located in the United States and its territories and 16,821 of which are located internationally. In addition, the Company spent $13.6 million to purchase land and easements and to extend lease terms. Total cash capital expenditures for the fourth quarter of 2021 were $113.2 million, consisting of $11.1 million of non-discretionary cash capital expenditures (tower maintenance and general corporate) and $102.1 million of discretionary cash capital expenditures (new tower builds, tower augmentations, acquisitions, and purchasing land and easements).
On January 4, 2022, the Company closed on 1,445 sites under the previously announced deal with Airtel Tanzania for $176.1 million. Additionally, subsequent to the fourth quarter of 2021, the Company purchased or is under contract to purchase 371 communication sites for an aggregate consideration of $137.1 million in cash. The Company anticipates that these acquisitions will be consummated by the end of the third quarter of 2022.
Financing Activities and Liquidity
SBA ended the fourth quarter of 2021 with $12.4 billion of total debt, $9.4 billion of total secured debt, $433.6 million of cash and cash equivalents, short-term restricted cash, and short-term investments, and $12.0 billion of Net Debt. SBA’s Net Debt and Net Secured Debt to Annualized Adjusted EBITDA Leverage Ratios were 7.3x and 5.5x, respectively.
During the fourth quarter, the Company, through an existing trust, issued $1.79 billion of Tower Securities that have a blended interest rate of 2.217% and a weighted average life through the anticipated repayment date of 7.8 years. In addition, the Company repaid, at par, the entire aggregate principal amount of the 2013-2C Tower Securities, which had an anticipated repayment date of April 11, 2023 and redeemed the entire aggregate $1.1 billon principal amount of the 2016 4.875% Senior Notes, as well as paid all premiums and costs associated with such redemption.
As of the date of this press release, the Company had $560.0 million outstanding under the $1.5 billion Revolving Credit Facility.
During the fourth quarter of 2021, the Company repurchased 0.8 million shares of its Class A common stock for $263.6 million at an average price per share of $335.26 under its $1.0 billion stock repurchase plan. Subsequent to December 31, 2021, the Company repurchased 1.0 million shares of its Class A common stock for $350.0 million, at an average price per share of $334.40. After these repurchases, the Company had $586.4 million of authorization remaining under the plan. Since January 1, 2021, the Company has repurchased 2.9 million shares of its Class A common stock for $932.5 million at an average price per share of $318.59. Shares repurchased were retired.
In the fourth quarter of 2021, the Company declared and paid a cash dividend of $63.1 million.
Outlook
The Company is providing its initial full year 2022 Outlook for anticipated results. The Outlook provided is based on a number of assumptions that the Company believes are reasonable at the time of this press release. Information regarding potential risks that could cause the actual results to differ from these forward-looking statements is set forth below and in the Company’s filings with the Securities and Exchange Commission.
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