Wavestone

Transaction in Own Shares • Jan 7, 2021

Press release Paris, January 7, 2021, 6 pm

Liquidity contract yearly report

On 31 December 2020 and according to Wavestone's agreement with Portzamparc the following means were dedicated to implement the liquidity contract:

• \ 24,091 Wavestone shares
• \ € 417,095.51 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	32,717 shares		408 transactions
SALES	32,299 shares	€ 813,454.41	396 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 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 2020

PURCHASES			SALES
Date	Number of transactions	Number of shares	Traded capital	Date	Number of transactions	Number of shares	Traded capital
07/01/2020	3	206	4,091.96	07/01/2020	1	86	1,728.6
07/06/2020	1	100	1,984	07/02/2020	2	200	3,950
07/07/2020	1	3	59.1	07/06/2020	1	100	2,000
07/08/2020	3	210	4,122.59	07/08/2020	1	1	19.7
07/10/2020	4	301	5,871.67	07/10/2020	1	1	19.68
07/13/2020	1	1	19.4	07/13/2020	4	301	5,883.41
07/14/2020	2	101	2,001.82	07/14/2020	2	101	2,009.82
07/15/2020	1	1	19.72	07/15/2020	4	301	6,009.71
07/16/2020	1	100	1,994	07/16/2020	2	200	4,010
07/17/2020	1	1	20	07/17/2020	1	1	20
07/20/2020	3	300	5,985.99	07/20/2020	2	200	4,006
07/21/2020	3	300	6,015.99	07/21/2020	1	100	2,025
07/22/2020	2	200	3,966	07/22/2020	1	100	2,000
07/23/2020	1	9	180	07/24/2020	3	201	4,034.87
07/24/2020	2	101	1,999.88	07/28/2020	2	101	2,020
07/27/2020	1	8	160	07/29/2020	6	501	10,215.09
07/28/2020	2	101	2,006	07/30/2020	3	194	4,037.86
07/29/2020	2	2	40.65	07/31/2020	2	101	2,100.7
07/30/2020	3	237	4,879.81	08/04/2020	2	4	81.5
07/31/2020	2	5	102.9	08/05/2020	2	101	2,035.3
08/03/2020	1	3	61.8	08/06/2020	3	125	2,540.05
08/04/2020	6	466	9,401.5	08/07/2020	2	72	1,439.92
08/05/2020	4	221	4,432.51	08/10/2020	3	201	4,004.14
08/06/2020	4	237	4,761.66	08/11/2020	4	347	7,004.09
08/07/2020	2	142	2,810.63	08/12/2020	2	101	2,045.1
08/11/2020	3	206	4,120.6	08/13/2020	3	201	4,065
08/12/2020	2	2	40.2	08/14/2020	2	85	1,725.35

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

08/13/2020	2	52	1,040	08/17/2020	1	79	1,591.85
08/14/2020	2	78	1,560.15	08/18/2020	2	101	2,050.3
08/17/2020	1	50	1,000	08/19/2020	2	150	3,015
08/18/2020	1	101	2,045.25	08/20/2020	2	68	1,366.68
08/19/2020	1	18	359.64	08/21/2020	1	1	20
08/20/2020	1	1	19.98	08/24/2020	3	193	3,901.4
08/21/2020	1	1	20	08/25/2020	2	200	4,045
08/24/2020	1	105	2,100	08/26/2020	3	51	1,032.75
08/25/2020	2	12	240.3	08/27/2020	2	121	2,441.3
08/26/2020	4	301	6,035.14	08/28/2020	3	209	4,256.35
08/27/2020	1	1	20	08/31/2020	2	200	4,105
08/28/2020	2	115	2,304.5	09/01/2020	1	100	2,060
09/01/2020	1	100	2,045	09/02/2020	8	700	14,949.98
09/03/2020	3	190	4,183	09/03/2020	5	450	10,020.02
09/04/2020	2	101	2,212.15	09/04/2020	9	725	16,336.35
09/07/2020	1	100	2,410	09/07/2020	6	600	14,440.02
09/08/2020	4	392	9,579.81	09/08/2020	1	100	2,455
09/09/2020	3	182	4,429.41	09/09/2020	1	100	2,455
09/10/2020	7	658	16,266.29	09/10/2020	5	400	10,008.72
09/11/2020	3	212	5,306.59	09/11/2020	6	550	13,907.41
09/14/2020	2	200	5,100	09/14/2020	2	200	5,145
09/15/2020	2	200	5,155	09/15/2020	3	218	5,657.99
09/16/2020	4	400	10,190	09/16/2020	5	500	13,040
09/17/2020	3	216	5,540.4	09/17/2020	2	200	5,180
09/18/2020	9	750	18,945	09/18/2020	2	200	5,085
09/21/2020	6	570	14,205.03	09/21/2020	1	100	2,535
09/23/2020	2	129	3,222.76	09/22/2020	3	206	5,135
09/24/2020	1	1	25	09/23/2020	4	309	7,778/15
09/25/2020	7	700	17,570	09/24/2020	1	1	25
09/28/2020	4	312	8,046.01	09/25/2020	7	657	16,853.36
09/29/2020	1	50	1,267.5	09/28/2020	2	161	4,196
09/30/2020	2	40	1,008.15	09/29/2020	1	4	102.6
10/01/2020	7	680	17,695.03	09/30/2020	4	301	7,720.35
10/02/2020	2	200	5,135	10/01/2020	9	850	22,454.96
10/05/2020	5	500	12,675	10/02/2020	1	100	2,590

10/06/2020	2	200	4,965	10/06/2020	1	100	2,490
10/07/2020	1	1	24.75	10/09/2020	3	15	370.5
10/08/2020	1	98	2,425.5	10/12/2020	2	187	4,650.65
10/09/2020	4	237	5,804.7	10/13/2020	3	300	7,455
10/12/2020	1	55	1,355.75	10/14/2020	1	57	1,410.75
10/13/2020	4	330	8,152.49	10/15/2020	4	202	5,016.61
10/14/2020	5	500	12,275	10/16/2020	4	213	5,386.05
10/15/2020	3	201	4,929.61	10/19/2020	2	200	5,145
10/16/2020	1	1	25.05	10/21/2020	1	100	2,530
10/20/2020	3	230	5,911.99	10/22/2020	3	300	7,500
10/21/2020	6	600	15,109.98	10/23/2020	1	1	25
10/22/2020	1	100	2,480	10/27/2020	2	200	4,855
10/23/2020	1	1	25	10/29/2020	2	101	2,323
10/26/2020	5	500	12,275	10/30/2020	2	200	4,585
10/27/2020	1	100	2,405	11/03/2020	5	385	8,948.13
10/28/2020	7	700	16,450	11/04/2020	7	601	14,408.61
10/29/2020	4	110	2,512.9	11/05/2020	6	501	12,259.17
10/30/2020	3	2,200	50,540	11/06/2020	4	328	8,208.4
11/02/2020	1	71	1,622.35	11/10/2020	4	400	10,110
11/03/2020	1	1	23	11/11/2020	1	1	25.5
11/04/2020	2	101	2,398.6	11/12/2020	4	321	8,184.44
11/05/2020	2	101	2,439.15	11/13/2020	11	954	24,625.22
11/06/2020	3	133	3,287.65	11/16/2020	5	213	5,459.04
11/09/2020	2	200	5,015	11/18/2020	2	132	3,352.69
11/10/2020	2	132	3,300	11/19/2020	6	477	12,206.24
11/11/2020	3	102	2,585.7	11/23/2020	2	200	5,120
11/12/2020	2	122	3,074.4	11/24/2020	1	1	25.6
11/13/2020	10	836	21,378.36	11/25/2020	3	300	7,560
11/16/2020	10	901	22,855.67	11/26/2020	4	312	7,896
11/17/2020	4	222	5,628.41	11/27/2020	2	51	1,290.2
11/18/2020	5	232	5,864.24	11/30/2020	2	200	5,060
11/19/2020	4	187	4,752.04	12/02/2020	15	1,500	38,760
11/20/2020	7	379	9,698.19	12/03/2020	16	1,544	41,150.07
11/23/2020	6	589	15,047.83	12/04/2020	6	587	16,199.91
11/24/2020	6	422	10,637.44	12/07/2020	6	600	16,669.98

11/25/2020	7	483	12,117.46	12/08/2020	8	800	22,050
11/26/2020	1	100	2,520	12/09/2020	13	1,260	35,752
11/27/2020	2	101	2,545.2	12/10/2020	7	604	17,988.99
11/30/2020	3	300	7,539.99	12/11/2020	3	300	8,915.01
12/01/2020	4	322	8,061.69	12/15/2020	8	800	22,960
12/02/2020	2	102	2,551.6	12/16/2020	8	800	23,210
12/04/2020	13	1,294	35,326.85	12/17/2020	4	400	11,700
12/07/2020	14	1,400	38,319.96	12/18/2020	4	400	11,580
12/08/2020	3	208	5,678.4	12/21/2020	6	600	17,350.02
12/09/2020	3	166	4,602.8	12/22/2020	5	500	14,585
12/10/2020	7	700	20,744.99	12/23/2020	2	200	5,880
12/11/2020	8	745	22,020.78	12/24/2020	4	301	8,879.29
12/14/2020	13	1,300	36,945.35	12/29/2020	4	217	6,392.91
12/15/2020	2	80	2,270	12/30/2020	2	101	2,999.6
12/16/2020	5	500	14,390	12/31/2020	1	100	2,962.4
12/17/2020	4	304	8,827.49
12/18/2020	8	735	21,153.81
12/22/2020	4	320	9,292
12/23/2020	3	111	3,246.69
12/24/2020	2	15	440.9
12/28/2020	3	300	8,769.99
12/29/2020	3	201	5,859.29
12/30/2020	6	501	14,679.6
12/31/2020	4	252	7,413.89

12/08/2020	8	800	22,050
12/09/2020	13	1,260	35,752
12/10/2020	7	604	17,988.99
12/11/2020	3	300	8,915.01
12/15/2020	8	800	22,960
12/16/2020	8	800	23,210
12/17/2020	4	400	11,700
12/18/2020	4	400	11,580
12/21/2020	6	600	17,350.02
12/22/2020	5	500	14,585
12/23/2020	$\overline{2}$	200	5,880
12/24/2020	4	301	8,879.29
12/29/2020	4	217	6,392.91
12/30/2020	$\overline{2}$	101	2,999.6
12/31/2020	1	100	2,962.4