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Share-based Compensation

3 Months Ended

Mar. 31, 2023

Share-based Compensation

Share-based compensation

Note 8 — Share-based Compensation

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Restricted share awards are issued to employees and to members of our board of directors that are subject to specified restrictions and a risk of forfeiture. The restrictions typically lapse over one to four years and may entitle holders to dividends and voting rights. Other types of share-based compensation include performance share awards, performance share units, and restricted share units (collectively with restricted share awards, “restricted shares”), as well as options to purchase common stock.

​

Share-based compensation expense was recognized in the following line items in the Consolidated Statements of Operations for the three months ended March 31, 2023 and 2022:

​

​	​	​	​	​	​	​	​	​
​	​	Three months ended March 31,					​	​
​		2023			2022
​	​	(in thousands)						​
Cost of sales		$	1,451		$	938
Research and development	​	​	2,089	​	​	1,257	​	​
Selling, general, and administrative	​	​	3,487	​	​	2,286	​	​
Total	​	$	7,027	​	$	4,481	​	​

​

For the three months ended March 31, 2023, equity activity related to stock options was as follows:

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​	​	​	​	​	​
​	​	​	​	Weighted
​	​	Number of	​	Average
​		Shares		Exercise Price
​	​	(in thousands)	​	​	​
Balance - December 31, 2022	​	177	​	$	30.94
Expired	​	(1)	​	​	30.47
Balance - March 31, 2023	​	176	​	​	30.94

​

For the three months ended March 31, 2023, equity activity related to non-vested restricted shares and performance shares was as follows:

​

​	​	​	​	​	​
​		​		Weighted
​	​	​	​	Average
​	​	Number of	​	Grant Date
​	​	Shares	​	Fair Value
​	​	(in thousands)	​	​	​
Balance - December 31, 2022	​	2,496	​	$	23.83
Granted	​	1,022	​	​	22.90
Performance award adjustments	​	183	​	​	10.59
Vested	​	(1,012)	​	​	16.22
Forfeited	​	(14)	​	​	22.46
Balance - March 31, 2023	​	2,675	​	​	25.46

​

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- Definition

The entire disclosure for share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-URI https://asc.fasb.org/topic&trid=2228938

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 2
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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