10. Per Share Data

The Company incurred losses for the three and six months ended June 30, 2017 and 2016 and as a result, the equity instruments listed below are excluded from the calculation of diluted earnings (loss) per share as the effect of the exercise, conversion or vesting of such instruments is anti-dilutive. The weighted average number of equity instruments excluded consists of:



	Three months ended June 30,				Six months ended June 30,
	2017	2016			2017	2016
Stock Options	1,541,472	1,764,374			1,625,254	1,825,181
Stock-Settled Stock Appreciation Rights	360,031	360,031			360,031	360,173
Restricted Stock Units	1,332,817	587,115	(1	)	1,320,211	611,895
Warrants	2,690,950	—			2,690,950	—

The appreciation of each stock-settled stock appreciation right was capped at a determined maximum value. As a result, the weighted average number shown in the table above for stock-settled stock appreciation rights reflects the weighted average maximum number of shares that could be issued.

(1) Included 363,337 restricted stock units that had vested but had not converted into common stock.