Liquidity contract half-year report

On 30 June 2021 and according to Wavestone's agreement with Portzamparc the following means were dedicated to implement the liquidity contract:

• 19,234 Wavestone shares;
• € 588,588.75 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 31/12/2018), the means were the following:

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

Trading summary for the first half:

Purchases	46,149 shares	€ 1,647,491.58	512 transactions
Sales	51,006 shares	€ 1,818,984.82	542 transactions

About Wavestone

In a world where knowing how to drive transformation is the key to success, Wavestone's mission is to inform and guide large companies and organizations in their most critical transformations, with the ambition of a positive outcome for all stakeholders. That's what we call "The Positive Way.”

Wavestone draws on some 3,000 employees across 8 countries. It is a leading independent player in the European consulting market.

Wavestone is listed on Euronext Paris.

Wavestone Pascal IMBERT Chief Executive Officer Tel. : +33 (0)1 49 03 20 00 Benjamin CLEMENT Financial communication Tel.: +33 (0)1 49 03 20 00

Actus Financial news Mathieu OMNES Analyst & investor relations Tel. : +33 (0)1 53 67 36 92 Nicolas BOUCHEZ Press relations Tel.: +33 (0)1 53 67 36 74

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 1^st half of 2021

PURCHASES					SALES
Date	Number of transactions	Number of shares	Traded capital		Date	Number of transactions	Number of shares	Traded capital
01/04/2021	8	705	20,402.49		01/04/2021	3	425	12,398.74
01/05/2021	3	143	4,177.44		01/05/2021	9	860	25,233
01/06/2021	2	101	2,974.55		01/06/2021	3	201	5,969.56
01/07/2021	2	157	4,625.8		01/08/2021	2	101	3,029.8
01/08/2021	1	1	29.8		01/11/2021	10	901	27,390.04
01/11/2021	1	1	30		01/13/2021	6	600	18,715.02
01/13/2021	4	360	10,959.01		01/14/2021	3	240	7,561.01
01/14/2021	6	600	18,750		01/15/2021	5	410	12,681.01
01/15/2021	2	160	4,922		01/18/2021	1	100	3,090
01/18/2021	6	600	18,270		01/19/2021	2	200	6,070
01/19/2021	2	200	6,050		01/20/2021	2	109	3,303.6
01/20/2021	3	393	11,868.6		01/22/2021	1	24	723.6
01/21/2021	1	100	3,015		01/26/2021	2	164	4,844.4
01/22/2021	2	200	6,020		01/27/2021	5	500	14,825
01/25/2021	6	530	15,812.97		01/28/2021	4	400	11,950
01/26/2021	2	200	5,880		01/29/2021	6	600	18,199.98
01/27/2021	1	10	294		02/01/2021	7	1,127	33,903.88
01/28/2021	4	400	11,870		02/02/2021	12	1,200	37,595.04
01/29/2021	4	387	11,682.41		02/03/2021	6	600	19,785
02/01/2021	6	539	16,154.42		02/05/2021	2	101	3,302.8
02/04/2021	8	800	26,380		02/08/2021	1	100	3,290
02/05/2021	9	899	29,108.09		02/09/2021	10	1,000	32,460
02/08/2021	6	600	19,440		02/10/2021	1	100	3,295
02/09/2021	1	33	1,064.25		02/11/2021	6	538	17,926.81
02/10/2021	1	100	3,285		02/12/2021	6	600	20,250
02/11/2021	1	50	1,650		02/15/2021	8	800	27,240
02/12/2021	2	200	6,670		02/16/2021	3	159	5,473.19
02/15/2021	1	10	344.5		02/17/2021	1	16	540.8
02/16/2021	7	700	23,775.01		02/18/2021	6	463	15,766.68
02/17/2021	6	501	16,903.39		02/19/2021	2	109	3,706.9
02/18/2021	2	101	3,413.9		02/22/2021	3	261	8,846.7
02/19/2021	4	316	10,710.79		02/23/2021	2	85	2,851.95
02/22/2021	4	400	13,480		02/24/2021	11	1,100	37,294.95
02/23/2021	5	401	13,433.74		02/25/2021	6	478	16,454.48
02/24/2021	3	300	9,995.01		02/26/2021	2	120	4,036
02/25/2021	7	700	23,884.98		03/01/2021	6	600	20,400
02/26/2021	5	500	16,715		03/02/2021	7	601	20,524.09
03/01/2021	2	200	6,780		03/03/2021	8	715	24,578.48
03/02/2021	7	573	19,380.52		03/04/2021	2	500	17,425
03/04/2021	9	900	31,235.04		03/05/2021	6	532	18,240.58
03/05/2021	4	400	13,640		03/09/2021	8	701	24,144.12
03/08/2021	1	45	1,530		03/12/2021	1	100	3,520
03/09/2021	1	1	34.1		03/15/2021	1	100	3,510
03/10/2021	2	200	6,970		03/16/2021	5	500	17,570
03/11/2021	1	100	3,490		03/17/2021	5	500	17,825
03/12/2021	3	106	3,700		03/18/2021	4	301	10,685.71
03/15/2021	5	500	17,470		03/19/2021	4	388	13,849.82
03/17/2021	5	412	14,595.59		03/22/2021	8	800	29,045.04
03/18/2021	6	600	21,180		03/23/2021	2	102	3,758.7
03/19/2021	2	50	1,770		03/24/2021	8	701	25,035.58
03/22/2021	4	313	11,311.04		03/25/2021	1	1	36
03/23/2021	9	820	29,688.02		03/26/2021	2	101	3,656.2
03/24/2021	4	301	10,655.61		03/29/2021	2	200	7,140
03/25/2021	5	580	20,820.03		03/30/2021	2	270	9,504
03/26/2021	9	900	32,159.97		03/31/2021	7	641	22,540.32
03/29/2021	5	550	19,475.01		04/01/2021	8	800	27,850
03/30/2021	6	528	18,418.8		04/06/2021	8	675	23,817.78
03/31/2021	7	700	24,399.97		04/07/2021	11	1,097	38,972.02
04/01/2021	3	300	10,370.01		04/08/2021	4	303	10,969.21
04/06/2021	4	328	11,434.41		04/09/2021	5	402	14,491.82
04/07/2021	5	440	15,400		04/12/2021	3	262	9,409.6
04/08/2021	9	756	27,095.19		04/13/2021	7	700	25,399.99
04/09/2021	4	290	10,411.99		04/14/2021	10	1,000	37,260
04/12/2021	5	500	17,840		04/16/2021	2	63	2,343.6
04/13/2021	1	73	2,613.4		04/19/2021	3	300	11,040
04/14/2021	1	56	2,055.2		04/20/2021	2	200	7,190
04/15/2021	8	800	30,070		04/21/2021	9	950	33,305.01
04/16/2021	6	529	19,458.52		04/22/2021	6	588	21,104.38
04/19/2021	5	500	18,100		04/23/2021	1	95	3,429.5
04/20/2021	7	620	21,970.01		04/26/2021	5	500	17,960
04/21/2021	7	700	24,150		04/27/2021	3	220	7,933.99
04/23/2021	6	521	18,752.3		04/28/2021	11	1,050	40,925.01
04/26/2021	3	104	3,733.3		04/29/2021	9	900	34,885.98
04/27/2021	4	279	10,009.4		05/04/2021	5	500	19,060
04/28/2021	9	1,162	44,449.41		05/05/2021	3	300	11,349.99
04/29/2021	5	500	19,240		05/06/2021	1	100	3,800
04/30/2021	10	950	36,314.99		05/07/2021	1	100	3,800
05/03/2021	4	302	11,435.59		05/10/2021	8	701	26,427.28
05/04/2021	8	800	30,200		05/11/2021	1	100	3,750
05/07/2021	6	600	22,470		05/12/2021	4	326	11,839.02
05/10/2021	2	101	3,757.3		05/14/2021	12	1,036	38,295.74
05/11/2021	11	1,100	40,420.05		05/17/2021	3	300	11,340
05/13/2021	3	164	5,921.79		05/18/2021	7	409	15,544.29
05/14/2021	1	1	36.2		05/20/2021	4	400	15,180
05/18/2021	2	87	3,274.9		05/21/2021	6	600	23,010
05/19/2021	4	315	11,935.51		05/25/2021	2	200	7,590
05/20/2021	2	106	3,996.2		05/26/2021	4	400	15,300
05/21/2021	3	218	8,314		05/27/2021	7	750	28,239.98
05/24/2021	6	600	22,720.02		05/28/2021	3	300	11,370
05/25/2021	4	244	9,263.09		05/31/2021	6	600	22,669.98
05/26/2021	8	848	32,163.96		06/01/2021	7	700	26,670
05/27/2021	6	533	19,907.71		06/02/2021	12	1,323	50,173.98
05/28/2021	5	479	18,052.5		06/03/2021	8	800	30,470
05/31/2021	2	156	5,875.6		06/04/2021	7	700	27,050.03
06/01/2021	8	701	26,517.78		06/07/2021	7	700	27,940.01
06/02/2021	7	695	26,123.03		06/08/2021	6	600	23,929.98
06/03/2021	3	300	11,349.99		06/09/2021	2	160	6,502
06/07/2021	1	100	3,958.3		06/10/2021	1	100	4,070
06/09/2021	3	300	12,060		06/11/2021	6	600	24,510
06/10/2021	1	100	4,050		06/14/2021	1	1	40.6
06/14/2021	11	1,100	44,509.96		06/15/2021	6	600	24,480
06/15/2021	1	100	4,050		06/16/2021	1	10	403
06/16/2021	10	832	33,648.83		06/18/2021	6	570	22,375.98
06/17/2021	12	920	36,422.98		06/21/2021	5	500	19,770
06/18/2021	2	200	7,740		06/22/2021	8	800	31,440
06/21/2021	13	1,201	46,868.9		06/23/2021	9	812	32,564.77
06/22/2021	1	100	3,900		06/24/2021	7	610	24,732.02
06/23/2021	5	261	10,403.41		06/25/2021	1	100	4,060
06/25/2021	7	700	28,140		06/28/2021	1	100	3,980
06/28/2021	6	600	23,850		06/29/2021	8	800	32,090
06/29/2021	1	100	3,970		06/30/2021	1	47	1,884.7
06/30/2021	6	600	23,970

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