Stockholders' Equity (Tables)

12 Months Ended

Feb. 28, 2021

Number of shares of common stock issued and treasury stock, and associated share activity

The number of shares of common stock issued and treasury stock, and associated share activity, are as follows:


	Common Stock			Treasury Stock
	Class A	Class B	Class 1	Class A	Class B
Balance at February 28, 2018	258,718,356	28,335,387	1,970	90,743,239	5,005,800
Retirement of treasury shares (1)	(74,000,000)	—	—	(74,000,000)	—
Share repurchases	—	—	—	2,352,145	—
Conversion of shares	12,968	(12,968)	—	—	—
Exercise of stock options	1,008,854	—	1,147,654	—	—
Employee stock purchases	—	—	—	(76,844)	—
Grant of restricted stock awards	—	—	—	(3,914)	—
Vesting of restricted stock units (2)	—	—	—	(24,308)	—
Vesting of performance share units (2)	—	—	—	(62,352)	—

Balance at February 28, 2019	185,740,178	28,322,419	1,149,624	18,927,966	5,005,800

Share repurchases	—	—	—	265,593	—
Conversion of shares	350,567	(22,213)	(328,354)	—	—
Exercise of stock options (3)	—	—	870,957	(747,527)	—
Employee stock purchases	—	—	—	(69,324)	—

Vesting of restricted stock units (2)	—	—	—	(91,311)	—
Vesting of performance share units (2)	—	—	—	(29,015)	—
Cancellation of restricted shares	—	—	—	444	—
Balance at February 29, 2020	186,090,745	28,300,206	1,692,227	18,256,826	5,005,800


Conversion of shares	1,113,535	(29,918)	(1,083,617)	—	—
Exercise of stock options (3)	—	—	4,326	(1,020,853)	—
Employee stock purchases	—	—	—	(67,801)	—

Vesting of restricted stock units (2)	—	—	—	(80,287)	—
Vesting of performance share units (2)	—	—	—	(17,335)	—

Balance at February 28, 2021	187,204,280	28,270,288	612,936	17,070,550	5,005,800

(1)Shares of our Class A Treasury Stock were retired to authorized and unissued shares of our Class A Common Stock.

(2)Net of the following shares withheld to satisfy tax withholding requirements:


	For the Years Ended
	February 28, 2021	February 29, 2020	February 28, 2019
Restricted Stock Units	37,933	49,900	15,409
Performance Share Units	9,433	17,439	44,016

(3)Includes use of Class A Treasury Stock associated with stock option exercises beginning March 1, 2019.

Summary of share repurchase activity

A summary of share repurchase activity is as follows:


			Class A Common Shares Repurchased
	Repurchase Authorization		For the Year Ended February 28, 2021			For the Year Ended February 29, 2020			For the Year Ended February 28, 2019
	Date	Amount Authorized	Dollar Value		Number of Shares	Dollar Value		Number of Shares	Dollar Value		Number of Shares
(in millions, except share data)
2018 Authorization (1)	Jan 2018	$3,000.0	$	—	—	$	50.0	265,593	$	504.3	2,352,145
2021 Authorization (2)	Jan 2021	$2,000.0	—		—	—		—	—		—
			$	—	—	$	50.0	265,593	$	504.3	2,352,145

(1)As of February 28, 2021, $1,954.1 million remains available for future share repurchase under the 2018 Authorization. The Board of Directors did not specify a date upon which the 2018 Authorization would expire.

(2)As of February 28, 2021, no shares have been repurchased under the 2021 Authorization. The Board of Directors did not specify a date upon which the 2021 Authorization would expire.