HALF-YEAR STATEMENT ON THE IMPLEMENTATION OF THE LIQUIDITY CONTRACT
AS OF JUNE 30, 2026

Bernin (Grenoble), France, July 17, 2026 – Soitec (Euronext Paris) announces that, under the liquidity contract entrusted to BNP Paribas on July 3, 2023, on the settlement date of June 30, 2026, the following resources appeared on the liquidity account:

24,442 Soitec shares, and
€6,360,766

During the 1^st semester of 2026, a total of:

227,346 shares were bought for €17,357,497 (i.e. 2,144 transactions).
288,875 shares were sold for €23,291,509 (i.e. 2,402 transactions).

It is hereby recalled that:

1. At the time of the previous half-yearly balance sheet, on the settlement date of December 31, 2025, the following resources appeared on the liquidity account:

86,001 Soitec shares, and
€429,465

2. 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).

3. 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 1^st semester of 2026 are given in the appendix to this press release.

*****

Agenda

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

Q1’ FY’27 revenue will be published on July 28, 2026, after market close.

*****

About Soitec

Soitec (Euronext - Tech Leaders - SBF 120), 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 around 600 million euros in fiscal year 2025-2026. 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 nearly 2000 employees, representing 50 different nationalities, working at its sites in Europe, the United States and Asia. Nearly 4,800 patents have been registered by Soitec.

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

For more information soitec.com 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 01/01/2026 to 06/30/2026 prepared in accordance with the provisions of article 2-3 of AMF Decision no. 2021-01 of June 22, 2021

Client	Date	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.	02/01/2026					1,400		4	33,722.50
SOITEC S.A.	05/01/2026	1,750	14	44,886.45		2,100		10	54,320.07
SOITEC S.A.	06/01/2026	1,050	4	27,107.54		700		4	18,235.00
SOITEC S.A.	07/01/2026	1,000	6	26,210.00		1,000		5	26,345.00
SOITEC S.A.	08/01/2026	2,100	15	56,992.53		1,750		9	48,191.50
SOITEC S.A.	09/01/2026	700	5	18,305.00		1,050		5	27,807.47
SOITEC S.A.	12/01/2026	1,350	10	36,272.48		1,350		4	36,401.54
SOITEC S.A.	13/01/2026	1,050	4	28,087.50		2,100		13	57,053.43
SOITEC S.A.	14/01/2026	1,050	3	29,207.54
SOITEC S.A.	15/01/2026	1,150	16	33,787.00		1,400		18	41,212.50
SOITEC S.A.	16/01/2026	1,500	10	42,684.00		1,050		7	30,013.73
SOITEC S.A.	19/01/2026	2,500	12	68,566.25		2,000		19	55,363.60
SOITEC S.A.	20/01/2026	1,100	7	29,900.75		1,100		6	30,012.51
SOITEC S.A.	21/01/2026	1,050	6	28,864.50		1,050		11	29,137.50
SOITEC S.A.	22/01/2026	1,050	6	30,331.04		1,050		6	30,421.97
SOITEC S.A.	23/01/2026	1,050	6	29,197.04		1,050		4	29,277.47
SOITEC S.A.	26/01/2026	1,750	8	47,551.00		1,750		9	47,817.00
SOITEC S.A.	27/01/2026	1,050	5	28,962.47		1,400		5	38,853.50
SOITEC S.A.	28/01/2026	2,100	9	58,985.43		1,750		11	49,402.50
SOITEC S.A.	29/01/2026	2,850	10	77,474.97		1,750		6	47,792.50
SOITEC S.A.	30/01/2026	1,500	5	39,675.00		1,050		3	28,090.97
SOITEC S.A.	02/02/2026	1,750	10	44,614.50		1,400		8	36,022.00
SOITEC S.A.	03/02/2026	1,800	7	45,417.96
SOITEC S.A.	04/02/2026					3,100		15	85,109.88
SOITEC S.A.	05/02/2026					1,050		12	32,458.97
SOITEC S.A.	06/02/2026	1,050	9	32,074.04		1,400		10	43,242.50
SOITEC S.A.	09/02/2026	1,450	4	46,537.46		1,800		14	58,327.56
SOITEC S.A.	10/02/2026	1,050	6	34,545.00		2,100		15	70,332.57
SOITEC S.A.	11/02/2026	1,600	10	58,700.00		3,750		31	137,589.00
SOITEC S.A.	12/02/2026	2,100	20	79,911.93		1,050		5	40,320.00
SOITEC S.A.	13/02/2026	900	12	32,393.52		1,050		11	38,552.54
SOITEC S.A.	16/02/2026	1,850	19	68,104.98		1,850		9	68,361.94
SOITEC S.A.	17/02/2026	1,850	14	67,495.03		2,200		13	80,716.02
SOITEC S.A.	18/02/2026	1,050	6	39,130.04		1,400		14	52,731.00
SOITEC S.A.	19/02/2026	1,400	14	51,390.50		1,050		3	38,535.00
SOITEC S.A.	20/02/2026	2,350	28	85,649.98		2,350		16	86,124.45
SOITEC S.A.	23/02/2026	1,750	14	64,879.50		3,150		25	118,135.40
SOITEC S.A.	24/02/2026	1,050	7	41,614.97		1,400		11	55,982.50
SOITEC S.A.	25/02/2026	2,450	14	99,099.07		2,800		18	113,662.64
SOITEC S.A.	26/02/2026	1,750	21	73,924.55		1,750		25	74,095.00
SOITEC S.A.	27/02/2026	2,100	32	87,013.50		1,750		16	73,181.50
SOITEC S.A.	02/03/2026	3,000	21	120,340.50		3,350		32	137,879.64
SOITEC S.A.	03/03/2026	1,750	21	73,855.08		1,550		17	65,723.57
SOITEC S.A.	04/03/2026	2,000	21	84,066.20		2,000		20	84,945.60
SOITEC S.A.	05/03/2026	2,100	12	89,069.40		1,750		13	74,735.50
SOITEC S.A.	06/03/2026	1,750	19	72,173.85		1,750		24	73,822.00
SOITEC S.A.	09/03/2026	1,862	11	74,551.87		1,862		14	75,000.24
SOITEC S.A.	10/03/2026					1,750		19	76,454.00
SOITEC S.A.	11/03/2026	1,886	21	87,501.16		2,886		28	134,844.02
SOITEC S.A.	12/03/2026	3,450	31	183,646.95		4,550		40	245,724.12
SOITEC S.A.	13/03/2026	2,700	28	153,218.52		3,350		35	193,639.05
SOITEC S.A.	16/03/2026	300	2	19,095.99		2,900		30	179,846.11
SOITEC S.A.	17/03/2026	6,650	56	399,593.18		3,200		29	195,141.12
SOITEC S.A.	18/03/2026	2,100	18	131,271.00		2,100		18	132,699.00
SOITEC S.A.	19/03/2026	4,600	50	269,553.10		3,700		36	217,328.01
SOITEC S.A.	20/03/2026	5,200	50	287,043.12		3,800		38	210,773.84
SOITEC S.A.	23/03/2026	3,850	37	197,470.35		4,200		39	218,211.00
SOITEC S.A.	24/03/2026	2,500	29	124,841.75		2,450		13	124,068.25
SOITEC S.A.	25/03/2026					2,600		19	139,950.98
SOITEC S.A.	26/03/2026	3,750	36	206,993.25		3,600		29	200,315.88
SOITEC S.A.	27/03/2026	2,550	25	134,126.94		2,550		14	134,719.56
SOITEC S.A.	30/03/2026	2,350	25	122,795.96		1,400		13	74,263.98
SOITEC S.A.	31/03/2026	1,692	16	85,543.12		2,292		12	117,646.07
SOITEC S.A.	01/04/2026	2,250	19	122,379.98		2,250		18	123,896.93
SOITEC S.A.	02/04/2026	2,100	19	106,470.00
SOITEC S.A.	07/04/2026	1,050	15	51,838.50		1,050		10	53,298.00
SOITEC S.A.	08/04/2026	900	4	48,232.98		1,400		13	76,559.00
SOITEC S.A.	09/04/2026	1,400	19	74,487.00		1,650		8	87,700.97
SOITEC S.A.	10/04/2026					17,451		89	1,064,032.84
SOITEC S.A.	13/04/2026	2,500	30	157,904.00		2,250		20	145,152.00
SOITEC S.A.	14/04/2026					3,500		31	239,456.00
SOITEC S.A.	15/04/2026	3,505	26	264,051.98		4,250		37	322,824.90
SOITEC S.A.	16/04/2026	5,000	49	405,093.50		6,000		51	489,723.60
SOITEC S.A.	17/04/2026	2,500	25	243,520.00		6,000		38	562,390.80
SOITEC S.A.	20/04/2026	3,850	34	398,650.18		3,850		25	402,557.93
SOITEC S.A.	21/04/2026	4,636	52	459,773.45		4,636		50	471,424.64
SOITEC S.A.	22/04/2026	6,625	55	700,387.71		10,625		79	1,129,578.81
SOITEC S.A.	23/04/2026	3,500	33	376,897.50		2,500		27	274,740.00
SOITEC S.A.	24/04/2026	4,500	52	481,757.40		5,500		46	593,569.90
SOITEC S.A.	27/04/2026	3,650	37	397,537.56		3,650		50	399,762.60
SOITEC S.A.	28/04/2026	4,750	42	483,409.40		3,800		44	395,117.16
SOITEC S.A.	29/04/2026	200	2	21,720.00		3,500		30	364,208.95
SOITEC S.A.	30/04/2026	3,500	15	443,574.95		16,250		148	2,063,709.38
SOITEC S.A.	04/05/2026					4,655		26	665,907.53
SOITEC S.A.	05/05/2026	4,750	83	662,799.80		4,750		27	677,749.95
SOITEC S.A.	06/05/2026	3,000	10	420,000.00		3,000		19	424,500.00
SOITEC S.A.	07/05/2026					2,800		46	432,652.64
SOITEC S.A.	08/05/2026					2,500		25	407,360.00
SOITEC S.A.	15/05/2026	2,450	31	338,799.97		2,450		19	344,364.90
SOITEC S.A.	18/05/2026	468	9	65,478.72		468		3	65,754.00
SOITEC S.A.	19/05/2026	1,400	16	194,967.50		1,400		15	196,700.00
SOITEC S.A.	28/05/2026					2,200		33	411,180.00
SOITEC S.A.	29/05/2026					700		4	140,140.00
SOITEC S.A.	08/06/2026	3,400	33	469,429.84		4,200		57	609,927.36
SOITEC S.A.	10/06/2026	7,058	74	951,725.42
SOITEC S.A.	11/06/2026	3,400	34	438,030.50		4,100		42	531,467.42
SOITEC S.A.	12/06/2026	1,354	17	175,454.98		2,400		32	316,192.56
SOITEC S.A.	15/06/2026	3,000	36	408,203.10		2,700		12	371,400.12
SOITEC S.A.	16/06/2026	4,500	37	603,824.85		4,000		51	541,016.00
SOITEC S.A.	17/06/2026	2,250	29	282,207.60		2,250		28	285,434.10
SOITEC S.A.	18/06/2026	5,250	62	631,834.88		4,750		35	578,164.78
SOITEC S.A.	19/06/2026	2,500	20	298,133.75		2,875		33	343,451.24
SOITEC S.A.	22/06/2026	1,500	23	186,567.45		4,000		45	502,930.00
SOITEC S.A.	23/06/2026	3,750	39	459,147.38		725		11	88,137.53
SOITEC S.A.	24/06/2026	4,000	56	459,585.20		2,100		20	245,349.93
SOITEC S.A.	25/06/2026	1,700	43	190,574.93		3,500		22	405,557.60
SOITEC S.A.	26/06/2026	780	17	86,708.00		1,700		10	192,517.52
SOITEC S.A.	30/06/2026	380	10	44,041.01		700		11	83,265.00
TOTAL		227,346	2,144	17,357,497		288,875		2,402	23,291,509
Purchases:	227,346	(2,144 transactions)	17,357,497€	Sales:		288,875		(2,402 transactions)	23,291,509€

Attachment

Soitec - PR Interim report as of June 30, 2026 liquidity contract

SOITEC - HALF-YEAR STATEMENT ON THE IMPLEMENTATION OF THE LIQUIDITY CONTRACT AS OF JUNE 30, 2026