Net Loss Per Share

We compute basic Net loss per share by dividing Net loss by the weighted average number of common shares outstanding during the period. To determine diluted share count, we apply the treasury stock method to determine the dilutive effect of outstanding stock option shares, restricted stock units ("RSUs"), and Employee Stock Purchase Plan ("ESPP") shares. Our application of the treasury stock method includes, as assumed proceeds, the average unamortized stock-based compensation expense for the period. When we are in a net loss position, we do not include dilutive securities as their inclusion would reduce the net loss per share.

A summary of basic and diluted Net loss per share is presented in the following table:



	Year Ended
(in thousands, except per share data)	December 29, 2018			December 30, 2017			December 31, 2016
Net loss	$	(26,322	)	$	(70,562	)	$	(54,099	)

Shares used in basic and diluted net loss per share	126,564			122,677			119,994

Basic and diluted net loss per share	$	(0.21	)	$	(0.58	)	$	(0.45	)

The computation of diluted Net loss per share excludes the effects of stock options, RSUs, and ESPP shares that are antidilutive, aggregating approximately the following number of shares:



	Year Ended
(in thousands)	December 29, 2018	December 30, 2017	December 31, 2016
Stock options, RSUs, and ESPP shares excluded as they are antidilutive	7,567	6,622	8,978

Stock options, RSUs, and ESPP shares are considered antidilutive when the aggregate of exercise price and unrecognized stock-based compensation expense are greater than the average market price for our common stock during the period or when we are in a net loss position, as the effects would reduce the loss per share. Stock options, RSUs, and ESPP shares that are antidilutive at December 29, 2018 could become dilutive in the future.