Wavestone

Transaction in Own Shares • Jan 6, 2022

Press release Paris, January 6, 2022, 6 pm

Liquidity contract yearly report

On 31 December 2021 and according to Wavestone's agreement with Portzamparc the following means were dedicated to implement the liquidity contract:

• \ 16,765 Wavestone shares
• \ € 706,506.95 in cash

Note that at the launch of the contract (on the launch date of the contract, in accordance with AMF decision n°2018-01 of July 2, 2018 – position on December 31, 2018) the means were the following:

• \ 36,611 Wavestone shares
• \ € 88,633.74 in cash

During the second half of 2020, it has been negotiated a total of:

PURCHASES	56,507 shares		618 transactions
SALES	58,976 shares	€ 2,769,357.42	638 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 9 countries. It is a leading independent player in the European consulting market.

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

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

Details¹ 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 2nd half of 2021

PURCHASES				SALES
Date	Number of transactions	Number of shares	Traded capital	Date	Number of transactions	Number of shares	Traded capital
07/01/2021	3	161	6,422.81	07/01/2021	6	600	24,160.02
07/02/2021	4	292	11,836.8	07/02/2021	14	1,400	57,779.96
07/05/2021	6	600	25,459.98	07/05/2021	2	172	7,386.01
07/06/2021	2	124	5,292.39	07/06/2021	6	600	25,920
07/07/2021	1	100	4,330	07/07/2021	5	500	21,850
07/08/2021	15	1,410	60,347.01	07/08/2021	1	100	4,370
07/09/2021	3	300	12,450	07/09/2021	5	468	19,649.59
07/12/2021	6	600	24,750	07/12/2021	1	100	4,180
07/13/2021	2	200	8,130	07/13/2021	1	87	3,558.3
07/14/2021	1	50	2,035	07/14/2021	8	800	33,000
07/15/2021	6	600	24,630	07/15/2021	1	100	4,150
07/16/2021	6	600	24,120	07/19/2021	6	600	24,450
07/19/2021	6	600	24,030	07/20/2021	5	500	20,200
07/20/2021	2	200	7,990	07/21/2021	6	600	24,859.98
07/21/2021	5	462	18,903.42	07/22/2021	3	201	8,411.81
07/22/2021	7	601	24,851.77	07/23/2021	9	801	33,110.78
07/23/2021	1	1	40.8	07/26/2021	8	800	33,880
07/26/2021	3	500	20,990	07/28/2021	7	605	25,231.53
07/27/2021	14	1,304	54,805.16	07/29/2021	6	600	25,309.98
07/28/2021	1	3	123.6	07/30/2021	4	452	19,043.98
07/29/2021	4	400	16,700	08/02/2021	5	401	16,892.21
07/30/2021	7	601	25,132.02	08/03/2021	1	100	4,230
08/02/2021	2	200	8,370	08/04/2021	11	1,100	46,049.96
08/03/2021	11	1,092	45,322.37	08/05/2021	7	700	30,789.99
08/05/2021	8	681	29,635.21	08/06/2021	2	134	5,832.4
08/06/2021	6	470	20,261.98	08/09/2021	6	600	26,040
08/10/2021	1	1	43.7	08/10/2021	1	100	4,390

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

08/11/2021	2	200	8,730	08/11/2021	3	300	13,160.01
08/12/2021	2	200	8,770	08/12/2021	1	100	4,390
08/13/2021	1	100	4,390	08/17/2021	8	705	30,731.51
08/16/2021	6	600	26,126.82	08/18/2021	5	500	22,250
08/18/2021	2	145	6,404.51	08/19/2021	1	100	4,420
08/19/2021	6	600	26,220	08/20/2021	4	400	17,500
08/20/2021	2	96	4,185.2	08/23/2021	3	300	13,170
08/24/2021	2	200	8,770	08/24/2021	1	100	4,400
08/26/2021	5	500	22,600	08/25/2021	8	800	35,620
08/30/2021	2	36	1,673.9	08/26/2021	3	50	2,274.5
08/31/2021	6	520	24,259.98	08/27/2021	8	800	36,700
09/01/2021	8	819	38,032.23	08/30/2021	4	400	18,700
09/02/2021	3	300	13,740	08/31/2021	7	627	29,376.33
09/03/2021	3	300	13,820.01	09/01/2021	2	169	7,933
09/06/2021	4	400	18,433	09/02/2021	6	518	23,873.38
09/07/2021	15	1,065	48,160.05	09/03/2021	2	200	9,250
09/09/2021	7	700	31,580.01	09/08/2021	14	1,306	58,343.59
09/10/2021	1	1	45/1	09/09/2021	2	200	9,110
09/13/2021	4	414	19,149.61	09/10/2021	8	701	31,995.11
09/15/2021	2	200	9,290	09/13/2021	4	310	14,431.71
09/16/2021	2	115	5,346.01	09/14/2021	3	225	10,447.49
09/17/2021	7	700	32,449.97	09/15/2021	4	400	18,660
09/20/2021	13	1,050	47,630	09/16/2021	2	200	9,350
09/21/2021	1	100	4,430	09/21/2021	10	800	35,940
09/22/2021	1	1	46.1	09/22/2021	10	901	41,926.14
09/23/2021	2	51	2,396.9	09/23/2021	9	900	43,000.02
09/24/2021	7	603	29,133.7	09/24/2021	3	159	7,748.8
09/27/2021	8	800	38,260	09/29/2021	4	400	18,500
09/28/2021	8	724	34,012.8	09/30/2021	11	1,100	50,310.04
09/29/2021	9	900	41,049.99	10/01/2021	8	627	28,634.02
10/01/2021	5	401	18,165.38	10/04/2021	6	625	28,650
10/04/2021	4	400	18,210	10/05/2021	10	900	41,560.02
10/06/2021	11	1,100	50,909.98	10/06/2021	2	110	5,149
10/07/2021	3	300	13,710	10/07/2021	6	600	27,550.02
10/08/2021	12	1,000	45,105	10/08/2021	5	388	17,602.01

10/11/2021	2	101	4,645.5		10/11/2021	7	601	27,735.49
10/12/2021	8	701	32,066.4		10/12/2021	1	1	46.4
10/13/2021	2	101	4,555.1		10/13/2021	9	801	36,565.09
10/14/2021	7	508	23,874.43		10/14/2021	3	201	9,547.5
10/18/2021	11	1,100	53,690.01		10/15/2021	11	1,100	52,859.95
10/20/2021	6	600	30,139.98		10/18/2021	1	52	2,553.2
10/21/2021	15	1,350	66,940.02		10/19/2021	12	1,148	56,529.24
10/25/2021	11	1,100	53,930.03		10/20/2021	7	700	35,759.99
10/26/2021	3	300	14,330.01		10/21/2021	5	425	21,390
10/27/2021	10	1,000	47,840		10/22/2021	9	900	44,319.96
10/29/2021	12	1,200	57,450		10/26/2021	11	1,100	53,240
11/01/2021	6	600	28,320		10/27/2021	2	103	5,026.4
11/02/2021	4	301	13,966.7		10/28/2021	8	800	38,390
11/03/2021	3	201	9,597.79		11/01/2021	3	300	14,400
11/04/2021	9	900	43,859.97		11/02/2021	7	601	28,216.71
11/05/2021	4	354	17,016.6		11/03/2021	13	1 201	58,467.8
11/08/2021	4	400	19,260		11/04/2021	4	367	17,999.29
11/09/2021	6	600	28,560		11/05/2021	6	518	25,041.21
11/10/2021	3	300	14,340		11/08/2021	6	600	28,990.02
11/11/2021	5	302	14,405.4		11/09/2021	6	528	25,299.6
11/12/2021	1	15	726		11/10/2021	8	800	38,490
11/15/2021	7	700	34,590.01		11/11/2021	7	601	29,007.69
11/17/2021	5	500	24,790		11/12/2021	9	900	44,070.03
11/18/2021	4	400	20,280		11/16/2021	7	700	34,079.99
11/19/2021	12	1 200	60,420		11/17/2021	9	900	45,240.03
11/22/2021	6	600	30,220.02		11/18/2021	1	100	5,140
11/23/2021	12	1,000	49 260		11/19/2021	5	450	23,059.98
11/24/2021	7	700	33,799.99		11/22/2021	4	650	33,050.03
11/26/2021	10	836	41,438.18		11/24/2021	8	800	38,990
11/29/2021	7	557	27,646.81		11/25/2021	8	700	34,800.01
11/30/2021	4	341	17,066.4		11/26/2021	3	300	15,020.01
12/01/2021	4	400	20,280		11/29/2021	9	850	42,489.97
12/02/2021	4	400	20,200		11/30/2021	6	600	30,540
12/03/2021	9	900	45,839.97		12/01/2021	1	60	3,084
12/06/2021	5	500	24,800		12/02/2021	2	100	5,140

12/08/2021	5	446	24,034.81	12/03/2021	5	400	20,770
12/09/2021	6	533	28,655.63	12/06/2021	2	200	10,100
12/10/2021	6	504	27,213.58	12/07/2021	21	1,250	65,430
12/13/2021	4	400	21,880	12/08/2021	4	263	14,236.61
12/14/2021	9	900	48 420	12/09/2021	5	500	27,080
12/15/2021	6	600	31,260	12/10/2021	5	510	27,661.99
12/16/2021	6	569	29,774.18	12/13/2021	5	500	27,600
12/17/2021	9	900	45,939.96	12/14/2021	2	200	10,960
12/20/2021	5	401	20,050	12/15/2021	6	500	26,370
12/21/2021	5	401	20,251.78	12/16/2021	6	500	26,510
12/22/2021	7	744	37,208.11	12/17/2021	2	200	10,320
12/23/2021	1	1	51.4	12/20/2021	1	1	50
12/24/2021	4	601	31,011.78	12/21/2021	4	301	15,591.8
12/27/2021	6	600	30,900	12/22/2021	2	101	5,151
12/29/2021	1	1	52.8	12/23/2021	5	901	46,611.43
12/31/2021	1	44	2,349.6	12/24/2021	3	211	11,015.8

12/27/2021	2	188	9,756
12/28/2021	4	400	20,780
12/29/2021	5	450	23,859.99
12/30/2021	4	400	21,320
12/31/2021	3	300	16,220.01