EARNINGS PER SHARE

12 Months Ended

Sep. 30, 2021

Basic EPS (and diluted EPS in periods when a loss exists) was calculated by dividing income available to common shareholders by the weighted average number of shares of common stock outstanding during the period. Diluted EPS was calculated by dividing income available to common shareholders by the weighted average number of shares of common stock outstanding plus additional common shares that could be issued in connection with stock based compensation. In August 2020, Griffon Corporation completed the Public Offering of 8,700,000 shares of our common stock at a price of $21.50 per share. Total proceeds, net of fees, were $178,165.

The following table is a reconciliation of the share amounts (in thousands) used in computing basic and diluted EPS for 2021, 2020 and 2019:


	2021	2020	2019
Common shares outstanding	56,613	56,130	46,806
Unallocated ESOP shares	(1,852)	(2,058)	(2,259)
Non-vested restricted stock	(3,601)	(3,556)	(3,420)
Impact of weighted average shares	(330)	(7,928)	(193)
Weighted average shares outstanding - basic	50,830	42,588	40,934
Incremental shares from stock based compensation	2,539	2,427	1,954

Weighted average shares outstanding - diluted	53,369	45,015	42,888

Anti-dilutive shares were not material. Shares of the ESOP that have been allocated to employee accounts are treated as outstanding in determining earnings per share.