HALF-YEAR STATEMENT ON THE IMPLEMENTATION OF THE LIQUIDITY CONTRACT AS OF DECEMBER 31, 2025

HALF-YEAR STATEMENT ON THE IMPLEMENTATION OF THE LIQUIDITY CONTRACT
AS OF DECEMBER 31, 2025

Bernin (Grenoble), France, January 14, 2026 – Soitec (Euronext Paris) announces that, under the liquidity contract entrusted to BNP Paribas on July 3, 2023, on the settlement date of December 31, 2025, the following resources appeared on the liquidity account:

86,001 Soitec shares, and
€429,465

During the 2^nd semester of 2025, a total of:

142,784 shares were bought for €5,270,345 (i.e. 1,399 transactions).
129,708 shares were sold for €4,807,774 (i.e. 1,178 transactions).

We remind you that:

At the time of the previous half-yearly balance sheet, on the settlement date of June 30, 2025, the following resources appeared on the liquidity account:

72,325 Soitec shares, and
€904,901

During the 1^st semester of 2025, a total of:

231,383 shares were bought for €14,129,177 (i.e. 2,855 transactions);
208,969 shares were sold for €12,889,302 (i.e. 2,792 transactions).

On July 3, 2023, the day before the start of trading, the following resources appeared on the liquidity account: €8,000,000.

Aggregate data for each trading day in the 2^nd semester of 2025 are given in the appendix to this press release.

*****

Agenda

Q3’ FY’26 revenue will be published on February 3, 2026, after market close.

FY’26 annual results will be published on May 27, 2026, after market close.

Soitec’s Annual General Meeting will be held on July 29, 2026.

*****

About Soitec

Soitec (Euronext – Tech Leaders), a world leader in innovative semiconductor materials, has been developing cutting-edge products delivering both technological performance and energy efficiency for over 30 years. From its global headquarters in France, Soitec is expanding internationally with its unique solutions, and generated sales of 0.9 billion Euros in fiscal year 2024-2025. Soitec occupies a key position in the semiconductor value chain, serving three main strategic markets: Mobile Communications, Automotive and Industrial, and Edge and Cloud AI. The company relies on the talent and diversity of more than 2,200 employees, representing 50 different nationalities, working at its sites in Europe, the United States and Asia. Nearly 4,300 patents have been registered by Soitec.

Soitec, SmartSiC™, and Smart Cut™ are registered trademarks of Soitec.

For more information, visit our website and follow us on LinkedIn and X : @Soitec_Official

*****

Media Relations: media@soitec.com

Investor Relations: investors@soitec.com

Daily report on SOITEC S.A.’s liquidity contract for the period 07/01/2025 to 12/31/2025
prepared in accordance with the provisions of article 2-3 of AMF Decision no. 2021-01 of June 22, 2021

Client		Date (day/month/year)		Purchases					Sales
				Number of shares		Number of transactions		Traded volume in EUR	Number of shares		Number of transactions		Traded volume in EUR
SOITEC S.A.	01/07/2025		1,700		14		78,782.93			1,700		25		79,014.47
SOITEC S.A.	02/07/2025									2,100		41		101,010.00
SOITEC S.A.	03/07/2025		1,000		13		49,417.50
SOITEC S.A.	04/07/2025		1,050		18		50,287.97			132		1		6,369.00
SOITEC S.A.	07/07/2025		1,000		16		47,164.50			1,000		14		47,317.50
SOITEC S.A.	08/07/2025		350		3		16,310.00			1,400		18		66,080.00
SOITEC S.A.	09/07/2025		1,400		14		66,941.00			1,050		7		50,550.05
SOITEC S.A.	10/07/2025		1,000		7		47,803.00			1,000		12		47,989.50
SOITEC S.A.	11/07/2025		1,050		16		50,102.54			1,000		5		47,750.00
SOITEC S.A.	14/07/2025		1,500		7		69,268.95			1,500		19		69,363.00
SOITEC S.A.	15/07/2025		1,286		10		58,153.56			1,286		14		58,326.27
SOITEC S.A.	16/07/2025		2,750		29		123,049.58			2,250		17		101,425.05
SOITEC S.A.	17/07/2025		1,400		14		64,211.00			1,750		42		80,881.50
SOITEC S.A.	18/07/2025		741		9		34,685.77			41		1		1,951.19
SOITEC S.A.	21/07/2025		700		9		32,287.50			700		4		32,385.50
SOITEC S.A.	22/07/2025		1,750		23		78,655.50			350		3		15,785.00
SOITEC S.A.	23/07/2025		2,600		19		110,490.38			1,400		15		62,160.00
SOITEC S.A.	24/07/2025		1,350		8		55,462.05			1,350		10		56,838.51
SOITEC S.A.	25/07/2025		1,400		11		57,613.50			1,050		8		43,389.47
SOITEC S.A.	28/07/2025		500		8		20,775.50			1,000		10		41,950.00
SOITEC S.A.	29/07/2025		2,450		26		100,379.93			1,750		16		72,607.50
SOITEC S.A.	30/07/2025		1,050		14		42,241.50			1,050		12		42,577.50
SOITEC S.A.	31/07/2025		1,400		16		55,020.00			350		2		13,982.50
SOITEC S.A.	01/08/2025		1,050		8		39,504.47			350		1		13,209.00
SOITEC S.A.	04/08/2025		1,050		9		38,699.54			350		1		13,016.50
SOITEC S.A.	05/08/2025		1,050		4		38,464.97			1,050		8		38,594.54
SOITEC S.A.	06/08/2025		1,050		6		38,325.00			700		3		25,637.50
SOITEC S.A.	07/08/2025									1,050		9		38,902.50
SOITEC S.A.	08/08/2025		350		4		13,142.50			350		3		13,317.50
SOITEC S.A.	11/08/2025		1,500		11		57,004.95			1,500		10		57,171.00
SOITEC S.A.	12/08/2025		700		9		26,372.50			1,050		8		39,777.47
SOITEC S.A.	13/08/2025		700		9		26,757.50			610		6		23,423.02
SOITEC S.A.	14/08/2025		730		10		27,632.84			350		4		13,391.00
SOITEC S.A.	15/08/2025		350		9		13,083.00			350		4		13,156.50
SOITEC S.A.	18/08/2025		800		8		29,645.04			800		3		29,697.52
SOITEC S.A.	19/08/2025		1,400		25		52,545.50			1,400		14		52,710.00
SOITEC S.A.	20/08/2025		1,400		13		51,758.00			1,400		14		51,870.00
SOITEC S.A.	21/08/2025		350		6		12,862.50			350		2		12,880.00
SOITEC S.A.	22/08/2025									1,050		10		39,462.47
SOITEC S.A.	25/08/2025									1,050		21		41,089.97
SOITEC S.A.	26/08/2025		1,050		10		40,400.54
SOITEC S.A.	27/08/2025		700		15		26,145.00			350		3		13,226.50
SOITEC S.A.	28/08/2025									350		4		12,988.50
SOITEC S.A.	29/08/2025		1,050		13		38,059.04
SOITEC S.A.	01/09/2025		1,050		11		36,473.54			1,050		11		36,960.00
SOITEC S.A.	02/09/2025		1,050		11		36,053.54
SOITEC S.A.	03/09/2025		700		6		23,579.50			700		14		23,926.00
SOITEC S.A.	04/09/2025		350		1		11,287.50
SOITEC S.A.	05/09/2025									1,050		21		34,709.54
SOITEC S.A.	08/09/2025		1,050		15		34,352.54			700		8		23,187.50
SOITEC S.A.	09/09/2025		700		13		22,620.50			350		3		11,511.50
SOITEC S.A.	10/09/2025		700		8		22,053.50			700		12		22,263.50
SOITEC S.A.	11/09/2025		700		11		21,805.00			700		8		22,008.00
SOITEC S.A.	12/09/2025		700		11		21,854.00			700		11		21,994.00
SOITEC S.A.	15/09/2025		1,000		7		31,454.50			1,000		7		31,534.50
SOITEC S.A.	16/09/2025		700		9		22,109.50			1,050		9		33,582.47
SOITEC S.A.	17/09/2025		1,050		12		33,883.50			1,400		12		45,587.50
SOITEC S.A.	18/09/2025									2,100		13		72,411.57
SOITEC S.A.	19/09/2025		1,400		22		50,109.50			350		3		12,792.50
SOITEC S.A.	22/09/2025		700		5		24,780.00			1,400		17		50,435.00
SOITEC S.A.	23/09/2025		1,450		20		55,012.57			1,450		11		55,042.44
SOITEC S.A.	24/09/2025		700		13		26,950.00			700		8		26,971.00
SOITEC S.A.	25/09/2025		1,400		10		53,749.50			1,400		16		53,945.22
SOITEC S.A.	26/09/2025		2,500		22		95,370.00			2,300		17		88,112.54
SOITEC S.A.	29/09/2025		1,946		18		75,470.36			1,596		16		62,279.59
SOITEC S.A.	30/09/2025		1,450		13		55,544.57			1,500		7		57,504.00
SOITEC S.A.	01/10/2025									1,400		11		56,248.50
SOITEC S.A.	02/10/2025									1,400		16		58,835.00
SOITEC S.A.	03/10/2025		700		3		30,555.00			1,050		11		46,297.97
SOITEC S.A.	06/10/2025		1,750		25		77,599.73			650		5		29,089.97
SOITEC S.A.	07/10/2025		1,750		12		76,473.43			500		9		21,919.00
SOITEC S.A.	08/10/2025		700		9		30,103.50			1,350		12		58,608.50
SOITEC S.A.	09/10/2025		1,250		6		56,675.00			1,400		18		63,511.00
SOITEC S.A.	10/10/2025		1,750		24		77,595.00
SOITEC S.A.	13/10/2025		1,000		9		43,539.00			1,300		11		56,950.01
SOITEC S.A.	14/10/2025		4,350		39		177,052.83
SOITEC S.A.	15/10/2025		450		7		16,983.00			1,600		15		61,102.56
SOITEC S.A.	16/10/2025		1,875		20		73,361.25			1,175		7		46,203.70
SOITEC S.A.	17/10/2025		1,400		18		53,392.50			700		4		26,775.00
SOITEC S.A.	20/10/2025		850		15		32,627.51			1,050		11		40,372.50
SOITEC S.A.	21/10/2025		1,500		20		60,246.00			2,450		23		98,584.57
SOITEC S.A.	22/10/2025		855		9		35,255.75			505		3		20,962.40
SOITEC S.A.	23/10/2025		1,050		14		43,714.97			1,050		10		43,945.97
SOITEC S.A.	24/10/2025		700		1		30,450.00			700		10		30,572.50
SOITEC S.A.	27/10/2025		1,600		13		68,590.08			1,150		5		49,595.02
SOITEC S.A.	28/10/2025		2,450		24		100,996.11			1,400		14		58,681.00
SOITEC S.A.	29/10/2025									1,400		15		56,588.00
SOITEC S.A.	30/10/2025		1,050		11		43,540.04			1,050		7		43,872.47
SOITEC S.A.	31/10/2025		700		12		29,004.50			350		4		14,560.00
SOITEC S.A.	03/11/2025		2,000		15		80,115.60			1,400		15		56,434.00
SOITEC S.A.	04/11/2025		1,350		19		52,785.54			1,000		4		39,400.00
SOITEC S.A.	05/11/2025		1,750		33		66,493.00			2,450		17		94,115.04
SOITEC S.A.	06/11/2025		2,100		23		81,305.07			1,050		8		41,205.47
SOITEC S.A.	07/11/2025		1,750		23		65,415.00			1,750		11		65,544.50
SOITEC S.A.	10/11/2025									700		11		26,656.00
SOITEC S.A.	11/11/2025		700		11		25,896.50			700		9		25,994.50
SOITEC S.A.	12/11/2025		700		11		25,728.50			4,113		44		159,595.09
SOITEC S.A.	13/11/2025		1,400		25		54,985.00			700		10		28,150.50
SOITEC S.A.	14/11/2025		1,050		22		39,193.04			1,050		12		39,564.00
SOITEC S.A.	17/11/2025		2,450		14		92,176.11			1,750		12		66,346.00
SOITEC S.A.	18/11/2025		1,750		28		61,967.50
SOITEC S.A.	19/11/2025		1,050		12		36,277.50			1,050		10		36,435.00
SOITEC S.A.	20/11/2025		5,750		40		166,393.50			2,600		23		74,926.02
SOITEC S.A.	21/11/2025		1,050		9		24,346.04			1,050		10		24,423.00
SOITEC S.A.	24/11/2025		1,400		6		32,336.50			1,750		8		41,045.73
SOITEC S.A.	25/11/2025		1,200		4		28,702.56			1,200		8		29,037.96
SOITEC S.A.	26/11/2025		1,400		9		35,441.00			1,750		7		44,765.00
SOITEC S.A.	27/11/2025		700		3		18,861.50			1,050		3		28,507.50
SOITEC S.A.	28/11/2025		1,400		5		38,080.00			700		2		19,040.00
SOITEC S.A.	01/12/2025		1,050		3		27,370.04			1,050		4		27,552.00
SOITEC S.A.	02/12/2025		1,400		5		35,843.50			700		11		18,249.00
SOITEC S.A.	03/12/2025		750		5		19,387.50			1,050		10		27,212.54
SOITEC S.A.	04/12/2025		1,588		6		41,841.42			1,750		10		46,249.00
SOITEC S.A.	05/12/2025		700		2		18,550.00			1,400		5		37,271.50
SOITEC S.A.	08/12/2025		1,050		6		27,832.04			700		2		18,630.50
SOITEC S.A.	09/12/2025		350		1		9,173.50			109		1		2,888.50
SOITEC S.A.	10/12/2025		700		3		18,028.50			241		1		6,297.33
SOITEC S.A.	11/12/2025		463		3		11,753.07			700		4		18,039.00
SOITEC S.A.	12/12/2025		350		2		9,100.00			700		2		18,410.00
SOITEC S.A.	15/12/2025		1,000		4		25,646.50			700		3		17,979.50
SOITEC S.A.	16/12/2025		1,700		14		42,473.48			1,350		10		33,921.05
SOITEC S.A.	17/12/2025		1,050		4		25,749.47			700		3		17,223.50
SOITEC S.A.	18/12/2025		2,800		11		66,580.64			2,800		10		66,787.00
SOITEC S.A.	19/12/2025		700		6		16,467.50
SOITEC S.A.	22/12/2025		350		2		8,095.50			350		1		8,235.50
SOITEC S.A.	23/12/2025		350		1		8,018.50			350		1		8,106.00
SOITEC S.A.	24/12/2025		350		2		8,043.00
SOITEC S.A.	29/12/2025		700		2		16,086.00			700		2		16,107.00
SOITEC S.A.	30/12/2025									350		1		8,106.00
SOITEC S.A.	31/12/2025		700		3		16,030.00			700		4		16,065.00
TOTAL			142,784		1,399		5,270,345			129,708		1,178		4,807,774
Purchases:	142,784		(1,399 transactions)		5,270,345€		Sales:			129,708		(1,178 transactions)		4,807,774€