During the three months ended July 29, 2017, the Company also granted awards under the Restated 2006 Plan to key employees (“Fiscal 2018 LTIP”). Awards under the Fiscal 2018 LTIP consist of: (i) time-based restricted stock awards, which vest in equal tranches in July 2018, July 2019 and July 2020, and (ii) PRSUs, which vest based on the Company’s achievement of revenue and operating income targets for the three-year period ending April 30, 2020. During the three months ended August 1, 2020, the Company issued a total of 16,228 fully-vested shares of common stock to settle the PRSUs in the Fiscal 2018 LTIP. For the three and nine months ended January 30, 2021, the Company recorded 0 compensation expense. For the three and nine months ended January 25, 2020, the Company recorded $201,000 and $162,000 of compensation expense related to the Fiscal 2018 LTIP, respectively.
At January 30, 2021 and April 30, 2020, the Company recorded cumulative stock-based compensation expense from the Fiscal 2021 LTIP, Fiscal 2020 LTIP and Fiscal 2019 LTIP of $2,780,000 and $1,607,000, 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 nine months ended January 30, 2021, the Company recorded a (benefit from) and provision for income taxes of $(924,000) and $2,774,000, respectively, yielding effective tax rates of 157.9% and 10.7%, respectively. For the three and nine months ended January 25, 2020, the Company recorded a (benefit from) and provision for income taxes of $(38,000) and $3,203,000, respectively, yielding effective tax rates of (28.4)% and 10.6%, respectively. The variance from statutory rates for the three and nine months ended January 30, 2021 was primarily due to federal R&D credits, foreign derived intangible income deductions and the recording of discrete excess tax benefits resulting from the vesting of restricted stock awards and exercises of stock options. The variance from statutory rates for the three and nine months ended January 25, 2020 was primarily due to federal R&D credits, foreign derived intangible income deductions and the recording of discrete excess tax benefits resulting from the vesting of restricted stock awards and exercises of stock options.
15. Share Repurchase
In September 2015, the Company’s Board of Directors authorized a program to repurchase up to $25,000,000 of the Company’s common stock with no specified termination date for the program. NaN shares were repurchased under the program during the three and nine months ended January 30, 2021 or January 25, 2020. As of January 30, 2021 and April 30, 2020, approximately $21,200,000 remained authorized for future repurchases under this program.
16. Related Party Transactions
Related party transactions are defined as transactions between the Company and entities either controlled by the Company or that the Company can significantly influence. Although SoftBank has a controlling interest in HAPSMobile, the Company determined that it has the ability to exercise significant influence over HAPSMobile. As such, HAPSMobile and SoftBank are considered related parties of the Company. Concurrent with the formation of HAPSMobile, the Company executed a Design and Development Agreement (the “DDA”) with HAPSMobile. Under the DDA and related efforts, the Company will use its best efforts, up to a maximum net value of $181,320,000, to design and build prototype solar powered high altitude aircraft and ground control stations for HAPSMobile and conduct low altitude and high altitude flight tests of the prototype aircraft.
The Company recorded revenue under the DDA and preliminary design agreements between the Company and SoftBank of $7,480,000 and $35,318,000 for the three and nine months ended January 30, 2021, respectively. The Company recorded revenue under the DDA and preliminary design agreements between the Company and SoftBank of $11,762,000 and $37,491,000 for the three and nine months ended January 25, 2020, respectively. At January 30, 2021 and April 30, 2020, the Company had unbilled related party receivables from HAPSMobile of $6,834,000 and $15,779,000 recorded in unbilled receivables and retentions on the consolidated balance sheets, respectively. Refer to Note 6—Equity Method Investments for further details.