On April 6, 2021, the Company, the guarantors with respect to the 2024 Notes, and the trustee with respect to the 2024 Notes executed and delivered a supplemental indenture to the 2024 Notes (Supplemental Indenture), which became effective on April 6, 2021. The Supplemental Indenture became operative on April 13, 2021, upon the Company’s acceptance of the 2024 Notes for purchase and payment therefore at the early settlement date of the April 2021 tender offer.
With respect to the Supplemental Indenture, each of the following sections in the indenture relating to the 2024 Notes were deleted: (i) Section 4.03, “SEC Reports”; (ii) Section 4.04, “Compliance Certificate”; (iii) Section 4.05, “Taxes”; (iv) Section 4.06, “Stay, Extension and Usury Laws”; (v) Section 4.07, “Limitation on Restricted Payments”; (vi) Section 4.08, “Limitation on Restrictions on Distributions from Restricted Subsidiaries”; (vii) Section 4.09, “Limitations on Indebtedness”; (viii) Section 4.10, “Limitation on Sales of Assets and Subsidiary Stock”; (ix) Section 4.11, “Limitation on Transactions with Affiliates”; (x) Section 4.12, “Limitation on Liens”; (xi) Section 4.14, “Change of Control”; (xii) Section 4.18, “Future Subsidiary Guarantors”; (xiii) Section 4.19, “Suspension of Covenants”; (xiv) Section 4.20, “Additional Interest Notice”; and (xv) Section 6.01(a), “Events of Default” (subsections (3) through (7) thereof (inclusive)). Certain modifications to Section 3.01, “Notices to Trustee”; Section 3.02(a) “Selection of Notes to Be Redeemed”; Section 3.03(a) “Notice of Redemption”; Section 4.15 “Corporate Existence”; Section 5.01, “Merger and Consolidation”; and Section 5.02, “Successor Corporation” were also made.
On June 25, 2021, the Company redeemed its remaining 2024 Notes. The redemption price of the 2024 Notes was 115.108% of the remaining outstanding aggregate principal amount, amounting to $217.5 million, plus accrued and unpaid interest. The amounts paid were funded using the proceeds from the additional draw down from the Term A Facility described above and cash on hand. The redemption of the 2024 Notes in the third quarter of fiscal 2021 resulted in a $117.5 million prepayment premium, which was included interest expense.
2027 Senior Notes
On February 21, 2017, the Company completed a private placement offering of $1,000,000,000 aggregate principal amount of its unsecured 5.125% Senior Notes due 2027 (the 2027 Senior Notes). On June 30, 2017, the Company completed an exchange offer to exchange the unregistered 2027 Senior Notes for registered notes, as well as related guarantees.
As of June 30, 2021, the estimated fair value of the 2027 Senior Notes was approximately $1,109.5 million. The fair value of the 2027 Senior Notes as of June 30, 2021 was derived by taking the mid-point of the trading prices from an observable market input (Level 2) in the secondary bond market and multiplying it by the outstanding balance of the 2027 Senior Notes. Interest is payable on the 2027 Senior Notes at a rate of 5.125% per annum. Interest on the 2027 Senior Notes is payable semi-annually on March 15 and September 15 of each year, commencing on September 15, 2017. The 2027 Senior Notes will mature on March 15, 2027.
At any time and from time to time prior to December 15, 2026, the Company may redeem all or part of the 2027 Senior Notes, at a redemption price equal to 100% of their principal amount, plus a “make whole” premium as of the redemption date, and accrued and unpaid interest to the redemption date.
The indenture pursuant to which the 2027 Senior Notes were issued contains customary events of default, including, among other things, payment default, exchange default, failure to provide notices thereunder and provisions related to bankruptcy events. The indenture also contains customary negative covenants.
The Company was in compliance with the covenants relating to the 2027 Senior Notes as of June 30, 2021.
URS Senior Notes
In connection with the 2014 acquisition of the URS Corporation (URS), the Company assumed the URS 5.00% Senior Notes due 2022 (2022 URS Senior Notes).
The remaining $248.5 million principal amount of the 2022 URS Senior Notes were fully redeemed on August 31, 2020 using proceeds from a $248.5 million secured delayed draw term loan facility under the Credit Agreement, at a