Changes in the common stock account in millions were as follows:

The number of common shares the company is authorized to issue is 1,200 million. The number of authorized preferred shares, none of which has been issued, is nine million.

The Board of Directors at its meeting in May 2008 authorized the repurchase of up to $5,000 million of additional common stock (58.5 million shares based on the October 31, 2012 closing common stock price of $85.44 per share). At October 31, 2012, this repurchase program had $2,489 million (29.1 million shares at the same price) remaining to be repurchased. Repurchases of the company’s common stock under this plan will be made from time to time, at the company’s discretion, in the open market.

A reconciliation of basic and diluted net income per share attributable to Deere & Company follows in millions, except per share amounts:

All stock options outstanding were included in the computation during 2012, 2011 and 2010, except 1.8 million options in 2012, none in 2011 and 1.9 million options in 2010 that had an antidilutive effect under the treasury stock method.