Wavestone

Transaction in Own Shares • Jul 20, 2023

Press release Paris, July 20, 2023, 6 pm

Liquidity contract half-year report

On 30 June 2023 and according to Wavestone's agreement with Portzamparc – BNP PARIBAS Group, the following means were dedicated to implement the liquidity contract:

• ⁄ 17,700 Wavestone shares;
• ⁄ € 697,855.79 in cash.

Note that at the launch of the contract (on the date of entry into force of the contract, in accordance with AMF decision no 2018-01 of 2 July 2018 - position on 12/31/2018), the means were the following:

• ⁄ 36,611 Wavestone shares;
• ⁄ € 88,633.74 in cash.

Trading summary for the first half of 2023:

Purchases	50,575 shares	€ 2,332,570.74	542 transactions
Sales	51,074 shares	€ 2,371,475.04	559 transactions

About Wavestone

In a world where knowing how to drive transformation is key to success, Wavestone's mission is to inform and guide large organizations in their most critical transformations, with the aim of a positive outcome for all stakeholders. This is anchored in the firm's DNA and embodied in our overarching values, known as "The Positive Way."

Wavestone draws on more than 4,000 employees across Europe, Asia, and the United States, and is a leading global consultancy.

Wavestone is listed on Euronext Paris, and recognized as a Great Place to Work ® .

Wavestone Pascal Imbert CEO Tel.: +33 (0)1 49 03 20 00

Justine Brosset Financial Communication Tel.: +33 (0)1 49 03 20 00

Actus Mathieu Omnes Investor and Analyst Relations Tel.: +33 (0)1 53 67 36 92

Deborah Schwartz Press relations Tel.: +33 (0)1 53 67 36 35

Details ¹ of the transactions executed: purchases on the one hand and sales on the other hand; in an aggregated table for each trading day of the 1st half of 2023

PURCHASES					SALES
Date	Number of transactions	Number of shares	Traded capital in euros		Date	Number of transactions	Number of shares	Traded capital in euros
TOTAL	542	50,575	2,332,570.74		TOTAL	559	51,074	2,371,475.04
01/02/2023	12	1,200	51,804.96		01/02/2023	6	550	24,124.98
01/03/2023	2	104	4,400.4		01/03/2023	8	800	34,260
01/04/2023	5	401	16,972.57		01/04/2023	1	1	42.55
01/05/2023	8	800	33,405.04		01/06/2023	7	594	24,857.18
01/06/2023	2	200	8,300		01/09/2023	7	700	29,715
01/10/2023	5	486	21,036.61		01/10/2023	2	200	8,750
01/12/2023	3	300	13,149.99		01/11/2023	8	715	31,157.98
01/17/2023	6	600	27,810		01/12/2023	6	600	26,520
01/18/2023	1	1	46.55		01/13/2023	7	700	31,014.97
01/19/2023	7	700	32,300.03		01/16/2023	1	24	1,125.6
01/20/2023	3	300	13,680		01/17/2023	3	300	14,100
01/24/2023	3	300	13,989.99		01/18/2023	7	601	28,196.58
01/25/2023	10	1,000	45,730		01/19/2023	2	200	9,310
01/27/2023	3	250	11,620		01/20/2023	5	500	22,980
01/30/2023	4	400	18,560		01/23/2023	8	800	36,920
01/31/2023	1	100	4,610		01/24/2023	2	200	9,370
02/01/2023	4	400	19,180		01/25/2023	1	100	4,600
02/03/2023	8	850	41,474.99		01/26/2023	5	500	23,230
02/06/2023	7	800	38,720		01/30/2023	1	1	46.85
02/07/2023	2	136	6,615.39		01/31/2023	8	800	37,530
02/08/2023	2	200	9,770		02/01/2023	1	100	4,840
02/10/2023	5	493	24,444.22		02/02/2023	8	800	38,725.04
02/13/2023	5	500	24,640		02/03/2023	2	200	9,770
02/14/2023	5	401	19,689.58		02/07/2023	8	800	39,255.04
02/15/2023	2	300	14,760		02/08/2023	5	500	24,640
02/16/2023	2	200	9,840		02/09/2023	6	600	30,004.98

¹ Number of transactions and volume (number of shares and traded capital)

02/17/2023	4	400	19,590	02/10/2023	5	500	25,050
02/20/2023	6	600	29,539.98	02/13/2023	5	500	24,880
02/21/2023	7	601	29,669.21	02/14/2023	3	201	9,999.61
02/22/2023	4	301	14,749.09	02/15/2023	2	200	9,930
02/23/2023	1	1	49.45	02/16/2023	3	300	14,910
02/24/2023	9	801	39,535.04	02/17/2023	6	600	29,670
02/27/2023	5	452	22,140.18	02/20/2023	4	400	19,850
02/28/2023	7	700	33,915	02/21/2023	2	161	7,991.7
03/01/2023	3	201	9,859.19	02/22/2023	5	401	19,829.09
03/02/2023	5	356	17,484.58	02/23/2023	5	401	19,949.47
03/03/2023	1	50	2,525	02/24/2023	6	501	25,110.02
03/06/2023	7	700	35,539.98	02/27/2023	4	400	19,740
03/07/2023	8	728	36,373.21	02/28/2023	2	161	7,901.2
03/08/2023	1	100	4,940	03/01/2023	3	201	9,929.2
03/09/2023	12	1,200	56,600.04	03/02/2023	7	700	35,000
03/10/2023	6	600	26,779.98	03/03/2023	4	400	20,350
03/13/2023	7	700	30,880.01	03/06/2023	1	100	5,080
03/14/2023	1	100	4,370	03/07/2023	2	200	10,100
03/15/2023	8	750	33,384.98	03/08/2023	6	501	25,010.52
03/16/2023	5	600	26,389.98	03/10/2023	2	200	8,970
03/17/2023	10	955	41,918.29	03/13/2023	1	100	4,470
03/20/2023	7	700	29,554.98	03/14/2023	6	590	26,306.98
03/21/2023	3	201	8,643.14	03/15/2023	3	327	14,669.61
03/22/2023	1	100	4,380	03/16/2023	5	500	22,285
03/23/2023	6	505	22,311.51	03/17/2023	5	500	22,255
03/24/2023	5	500	22,130	03/20/2023	10	1,050	44,927.51
03/27/2023	1	100	4,400	03/21/2023	9	886	38,477.92
03/28/2023	7	601	26,594.49	03/22/2023	3	300	13,224.99
03/29/2023	3	300	13,260	03/23/2023	8	800	35,630
03/31/2023	6	600	26,820	03/27/2023	7	700	31,049.97
04/04/2023	4	400	18,170	03/28/2023	5	401	17,884.52
04/05/2023	2	200	9,080	03/29/2023	1	100	4,450
04/06/2023	14	1,400	63,729.96	03/30/2023	5	500	22,245
04/11/2023	9	900	40,380.03	03/31/2023	3	300	13,560
04/12/2023	3	287	12,797.16	04/03/2023	11	950	43,207.52

04/13/2023	4	400	17,785	04/04/2023	1	100	4,560
04/14/2023	4	305	13,602.51	04/05/2023	6	600	27,510
04/17/2023	6	501	22,294.4	04/06/2023	2	122	5,632.5
04/18/2023	5	359	15,874.26	04/12/2023	2	200	9,010
04/19/2023	8	701	30,739.13	04/13/2023	1	100	4,485
04/20/2023	4	301	13,359.4	04/14/2023	4	400	17,910
04/21/2023	12	1,101	48,094.43	04/17/2023	6	501	22,394.4
04/25/2023	6	560	24,517.02	04/18/2023	4	301	13,379.36
04/26/2023	5	401	17,468.84	04/19/2023	10	821	36,286.15
04/27/2023	8	800	35,150	04/20/2023	5	401	17,904.41
05/02/2023	6	501	23,176.01	04/21/2023	1	1	44.4
05/03/2023	5	500	22,975	04/24/2023	5	500	21,830
05/04/2023	11	1,001	45,705.96	04/25/2023	5	350	15,424.89
05/05/2023	6	501	22,484.98	04/26/2023	8	608	26,694.3
05/08/2023	5	442	20,343.58	04/27/2023	5	444	19,649.22
05/09/2023	2	200	9,150	04/28/2023	23	2,150	99,102.53
05/10/2023	6	600	27,720	05/02/2023	7	601	27,976.01
05/12/2023	2	200	9,330	05/03/2023	2	200	9,280
05/15/2023	3	300	14,135.01	05/04/2023	8	701	32,360.96
05/16/2023	14	1,400	64,980.02	05/05/2023	13	1,105	50,661.05
05/17/2023	4	301	13,780.95	05/08/2023	4	371	17,238.59
05/18/2023	1	1	45.85	05/09/2023	5	455	21,011.99
05/19/2023	3	106	4,902.1	05/11/2023	5	500	23,290
05/22/2023	6	600	27,705	05/12/2023	2	200	9,370
05/23/2023	5	459	20,886.8	05/15/2023	5	500	23,650
05/24/2023	6	482	21,661.8	05/16/2023	3	203	9,597.84
05/25/2023	5	500	22,295	05/17/2023	4	301	13,860.96
05/26/2023	2	200	8,790	05/18/2023	7	502	23,117.2
05/29/2023	2	200	8,890	05/19/2023	4	301	13,981.36
05/30/2023	5	421	18,662.64	05/22/2023	1	1	46.75
05/31/2023	2	200	8,720	05/23/2023	1	1	45.9
06/01/2023	5	500	22,145	05/24/2023	1	1	45.15
06/02/2023	3	300	13,785	05/25/2023	1	9	405
06/06/2023	2	200	9,410	05/26/2023	8	741	32,791.62
06/08/2023	4	400	19,390	05/29/2023	1	1	44.7

06/09/2023	4	400	19,310	05/30/2023	1	5	223.25
06/12/2023	2	200	9,640	05/31/2023	6	600	26,790
06/13/2023	2	200	9,740	06/01/2023	11	1,100	49,708.45
06/14/2023	7	700	34,129.97	06/02/2023	5	500	23,125
06/15/2023	3	300	14,385	06/05/2023	7	606	28,426.79
06/16/2023	3	300	14,430	06/06/2023	4	400	18,990
06/19/2023	7	615	29,511.51	06/07/2023	7	700	33,890.01
06/20/2023	3	201	9,497.35	06/08/2023	1	1	48.55
06/21/2023	2	200	9,660	06/09/2023	3	245	11,889.26
06/22/2023	5	500	24,220	06/12/2023	4	400	19,490
06/23/2023	3	201	9,678.15	06/13/2023	5	500	24,545
06/26/2023	4	400	19,170	06/14/2023	1	100	4,945
06/27/2023	8	800	39,355.04	06/15/2023	5	500	24,175
06/28/2023	1	1	48.6	06/16/2023	5	500	24,180
06/29/2023	4	400	19,780	06/19/2023	1	100	4,820
06/30/2023	2	101	5,024.65	06/20/2023	6	501	23,947.35

06/21/2023	5	500	24,360
06/22/2023	1	4	194.4
06/23/2023	4	301	14,568.16
06/26/2023	7	700	34,359.99
06/28/2023	7	700	34,419.98
06/29/2023	6	600	29,845.02
06/30/2023	3	300	14,960.01