Note 9 – Stock-Based Compensation and Other Employee Benefit Plans

The Company has stock-based compensation plans, under which shares of the Company’s common stock are reserved for issuance. Under all stock-based compensation plans in effect as of March 31, 2019, including employee stock purchase plans, there were approximately 4,178,000 shares available for future grant.

Non-cash stock-based compensation expense under all plans totaled $3.7 million and $3.2 million for the three month periods ended March 31, 2019 and 2018, respectively. Income tax benefits associated with stock-based compensation arrangements totaled $3.2 million and $0.8 million for the three month periods ended March 31, 2019 and 2018, respectively. Net tax benefits related to the vesting of share-based payment awards totaled $2.3 million for the three month period ended March 31, 2019, and were de minimis for the three month period ended March 31, 2018.

Restricted Shares

MasTec grants restricted stock awards and restricted stock units (together “restricted shares”) to eligible participants, which are valued based on the closing market share price of MasTec common stock (the “market price”) on the date of grant. During the restriction period, holders of restricted stock awards are entitled to vote the shares. Total unearned compensation related to restricted shares as of March 31, 2019 was approximately $31.4 million, which is expected to be recognized over a weighted average period of approximately 2.4 years. The intrinsic value of restricted shares that vested, which is based on the market price on the date of vesting, totaled $13.6 million and $0.1 million for the three month periods ended March 31, 2019 and 2018, respectively.



Activity, restricted shares: ^(a)	Restricted Shares		Per Share Weighted Average Grant Date Fair Value
Non-vested restricted shares, as of December 31, 2018	1,270,233		$	31.80
Granted	221,462		46.90
Vested	(326,346	)	13.34
Canceled/forfeited	(1,700	)	35.53
Non-vested restricted shares, as of March 31, 2019	1,163,649		$	39.84


(a)	Includes 5,100 and 18,700 restricted stock units as of March 31, 2019 and December 31, 2018, respectively.

Employee Stock Purchase Plans

The Company has certain employee stock purchase plans (collectively, “ESPPs”) under which shares of the Company's common stock are available for purchase by eligible employees. The following table provides details pertaining to the Company’s ESPPs for the periods indicated:



	For the Three Months Ended March 31,
	2019		2018
Cash proceeds (in millions)	$	1.2	$	1.0
Common shares issued	35,732		25,638
Weighted average price per share	$	34.48	$	39.99
Weighted average per share grant date fair value	$	8.76	$	9.79