SINTX Technologies, Inc. Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2021

A summary of the Company’s outstanding stock option activity for the six months ended June 30, 2021 and 2020 is as follows:

Summary of Stock Option Activity

			June 30 , 2021
			Weighted- Average		Weighted- Average Remaining Contractual Life		Intrinsic
	Options		Exercise Price		(Years)		Value
As of December 31, 2020		465,393	$	5.53		9.3	$	-
Granted		368,500		1.93		10.0		-
Exercised		-		-		-		-
Forfeited		-		-		-		-
Expired		-		-		-		-
As of June 30, 2021		833,893	$	3.98		9.2	$	743,089
Exercisable at June 30, 2021		376	$	6,977.42		3.8	$	-
Vested and expected to vest at June 30, 2021		833,893	$	3.98		9.2	$	743,089

			June 30, 2020
			Weighted- Average		Weighted- Average Remaining Contractual Life		Intrinsic
	Options		Exercise Price		(Years)		Value
As of December 31, 2019		377	$	7,446.69		5.3	$	-
Granted		-		-		-		-
Exercised		-		-		-		-
Forfeited		-		-		-		-
Expired		-		-		-		-
As of June 30, 2020		377	$	7,446.69		4.8	$	-
Exercisable and vested at December 31, 2020		377	$	7,446.69		4.8	$	-

	June 30 , 2021
Weighted-average risk-free interest rate		0.73%-0.85	%
Weighted-average expected life (in years)		5.3-5.9
Expected dividend yield		-	%
Weighted-average expected volatility		138%-139	%

Unrecognized stock-based compensation as of June 30, 2021, is as follows (in thousands):