settle the PRSUs in the Fiscal 2021 LTIP. For the three and six months ended October 29, 2022, the Company recorded $116,000 and $192,000 of compensation expense related to the Fiscal 2021 LTIP, respectively.
At each reporting period, the Company reassesses the probability of achieving the performance targets for the PRSUs. The estimation of whether the performance targets will be achieved requires judgment, and, to the extent actual results or updated estimates differ from the Company’s current estimates, the cumulative effect on current and prior periods of those changes will be recorded in the period estimates are revised. No compensation cost is ultimately recognized for awards for which employees do not render the requisite service and are forfeited.
14. Income Taxes
For the three and six months ended October 28, 2023, the Company recorded a provision for income taxes of $1,137,000 and $2,451,000, respectively, yielding an effective tax rate of 5.6% for both periods. For the three and six months ended October 29, 2022, the Company recorded a benefit from income taxes of $(10,457,000) and $(7,851,000) yielding an effective tax rate of 66.1% and 37.2%, respectively. The variance from statutory rates for the three and six months ended October 28, 2023 was primarily due to foreign derived intangible income deductions and to federal R&D credits. Historically, the Company calculated the provision for income taxes during interim reporting periods by applying an estimate of the annual effective tax rate (“AETR”) for the full fiscal year to the pretax income or loss for the interim reporting period. For the three and six months ended October 29, 2022, the Company calculated the provision for income taxes using a discrete effective tax rate (“ETR”) method. The Company determined that due to the fact small changes in the Company’s estimated pretax income or loss would result in significant changes in the estimated AETR, the historical method would not provide a reliable estimate for the three and six months ended October 29, 2022. The variance from statutory rates for the three and six months ended October 29, 2022 was primarily due to a combination of federal R&D credits and the foreign-derived intangible income deduction.
15. Share Repurchase Plan and Issuances
The Company’s share repurchase program announced September 2015 was terminated by the Company’s Board of Directors in September 2022. There were no repurchases of the Company’s common stock during the six months ended October 29, 2022.
On September 8, 2022 the Company filed an S-3 shelf registration statement to offer and sell shares of the Company’s common stock, including a prospectus supplement in relation to an Open Market Sale AgreementSM, also dated September 8, 2022, with Jefferies LLC relating to the proposed offer and sale of shares of our common stock having an aggregate offering price of up to $200,000,000 from time to time through Jefferies LLC as the sales agent. During the three and six months ended October 28, 2023, the Company sold 807,370 shares for total gross proceeds of $91,313,000, total proceeds received of $88,574,000, net of commission expense and $88,437,000 net of equity issuance costs. During the three and six months ended October 29, 2022, the Company sold 125,441 of its shares for total gross proceeds of $12,700,000, total proceeds received of $12,347,000, net of commission expense and $11,778,000 net of equity issuance costs. As of October 28, 2023, the Company has completed the Open Market Sale AgreementSM and sold 1,917,100 of its shares for total gross proceeds of $200,000,000, total proceeds received of $193,999,000, net of commission expense and $193,086,000 net of equity issuance costs.
16. Business Acquisitions
Tomahawk Acquisition
On September 15, 2023, the Company closed its acquisition of Tomahawk Robotics, Inc., a leader in AI-enabled robotic control systems. Pursuant to the merger agreement, the Company paid a total purchase price of $134,467,000 consisting of 985,999 in restricted common stock of the Company valued at $109,820,000 and $27,205,000 cash-on-hand, net of $3,048,000 cash acquired, plus a $490,000 holdback for 100% of Tomahawk equity. The fair value of the shares issued was the closing price on September 15, 2023, the close of the Tomahawk purchase agreement. Tomahawk is incorporated into AeroVironment’s UMS segment. The acquisition will enable deeper integration of both companies’ technology, leading to enhanced interoperability and interconnectivity of unmanned systems through a singular platform