Stock-Based Compensation (Tables)

9 Months Ended

Sep. 28, 2013

Summary of Stock Option Plans Activity

A summary of activity under Nucor’s stock option plans for the first nine months of 2013 is as follows (in thousands, except year and per share amounts):

	Shares		Weighted - Average Exercise Price		Weighted - Average Remaining Contractual Life		Aggregate Intrinsic Value
Number of shares under option:
Outstanding at beginning of year		1,543	$	39.03
Granted		546	$	44.51
Exercised		—		—
Canceled		—		—
Outstanding at September 28, 2013		2,089	$	40.47		8.4 years	$	17,409
Options exercisable at September 28, 2013		242	$	41.43		6.7 years	$	1,783

Summary of Nucor's Restricted Stock Unit Activity

A summary of Nucor’s RSU activity for the first nine months of 2013 is as follows (shares in thousands):

	Shares			Grant Date Fair Value
Restricted stock units:
Unvested at beginning of year		1,106		$	40.80
Granted		789		$	44.51
Vested		(753	)	$	42.17
Canceled		(11	)	$	39.08
Unvested at September 28, 2013		1,131		$	42.49
Shares reserved for future grants (stock options and RSUs)		10,499

Summary of Nucor's Restricted Stock Awards and Units Under AIP and LTIP

A summary of Nucor’s restricted stock activity under the AIP and LTIP for the first nine months of 2013 is as follows (shares in thousands):

	Shares			Grant Date Fair Value
Restricted stock awards and units:
Unvested at beginning of year		72		$	43.72
Granted		122		$	47.36
Vested		(121	)	$	46.32
Canceled		—			—
Unvested at September 28, 2013		73		$	45.49
Shares reserved for future grants		1,238