Assystem

Capital/Financing Update • Jan 7, 2025

HALF-YEAR LIQUIDITY CONTRACT STATEMENT

Paris, January 7th, 2025

Under the liquidity contract entered into between ASSYSTEM S.A. (ISIN: FR0000074148 - ASY) and Kepler Chevreux, the following resources appeared on the liquidity account on December 31st, 2024:

• 7,976 shares
• € 918,245.93
• Number of executions on buy side on semester: 2,588
• Number of executions on sell side on semester: 2,565
• Traded volume on buy side on semester: 84,788 shares for € 3,802,873.09
• Traded volume on sell side on semester: 80,214 shares for € 3,622,741.33

As a reminder:

• the following resources appeared on the last half year statement on June 30th, 2024 on the liquidity account:
• 3,402 shares
• € 1,085,569.80
• Number of executions on buy side on semester: 2,712
• Number of executions on sell side on semester: 2,880
• Traded volume on buy side on semester: 76,210 shares for € 4,059,854.68
• Traded volume on sell side on semester: 73,779 shares for € 3,978,361.69
• the following resources appeared on the liquidity account when the activity started:
• 22,970 shares
• € 923,444.41

The liquidity agreement complies with AMF Decision n° 2021-01 dated on June 22nd , 2021, introducing liquidity agreements on equity securities as permitted market practice.

ABOUT ASSYSTEM

Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition. With more than 55 years of experience in highly regulated sectors with stringent safety and security constraints, the Group provides engineering and project management services as well as digital solutions and services to optimise the performance of complex infrastructure assets throughout their life cycle.

In its 12 countries of operation, Assystem's 7,500 experts are supporting energy transition. To achieve an affordable low carbon energy supply, Assystem is committed to the development of low carbon electricity (nuclear, renewables and electricity grids) and clean hydrogen. The Group is also helping drive the use of low carbon electricity in industrial sectors such as transportation.

Assystem forms part of the Euronext Tech Leaders, CAC Small, CAC Mid & Small, CAC Industrials, CAC All-Tradable and CAC All-Share indices.

To find out more visit www.assystem.com

CONTACT Malène Korvin CFO Tél : +33 (0)1 41 25 29 00

		Buy Side			Sell Side
	Number of executions	Number of shares	Traded volume in EUR	Number of executions	Number of shares	Traded volume in EUR
Total	2 588	84 788	3 802 873,09	2 565	80 214	3 622 741,33
07/01/2024	-	-	-	73	2 265	125 118,60
07/02/2024	31	976	53 884,96	34	1 050	58 075,50
07/03/2024	-	-	-	33	1 015	56 951,65
07/04/2024	30	649	36 519,23	4	30	1 716,90
07/05/2024	-	-	-	24	380	21 413,00
07/08/2024	11	301	17 087,77	14	240	13 756,80
07/09/2024	7	189	10 703,07	23	400	22 868,00
07/10/2024 07/11/2024	38 12	1 600 400	81 904,00 20 436,00	- -	- -	- -
07/12/2024	2	44	2 279,20	7	300	15 606,00
07/15/2024	10	388	20 094,52	20	550	28 572,50
07/16/2024	22	568	29 445,12	31	850	44 166,00
07/17/2024	35	1 200	61 476,00	10	400	20 676,00
07/18/2024	12	350	17 731,00	21	850	43 316,00
07/19/2024	19	568	28 718,08	16	388	19 737,56
07/22/2024	20	350	17 755,50	25	812	41 355,16
07/23/2024	20	600	30 636,00	19	750	38 362,50
07/24/2024	16	300	15 204,00	12	300	15 291,00
07/25/2024	42	1 332	66 213,72	5	107	5 339,30
07/26/2024	11	400	19 636,00	-	-	-
07/29/2024 07/30/2024	27 -	800 -	38 856,00 -	10 34	270 1 200	13 227,30 59 208,00
07/31/2024	15	700	34 496,00	12	500	24 820,00
08/01/2024	19	700	34 181,00	9	350	17 244,50
08/02/2024	17	653	31 344,00	5	102	4 937,82
08/05/2024	45	1 224	56 340,72	4	200	9 286,00
08/06/2024	4	150	6 915,00	29	1 150	53 636,00
08/07/2024	13	300	14 109,00	21	850	40 383,50
08/08/2024	15	400	18 884,00	8	250	11 840,00
08/09/2024	4	150	7 170,00	20	800	38 344,00
08/12/2024	-	-	-	62	1 648	81 394,72
08/13/2024	38	880	43 296,00	5	96	4 751,04
08/14/2024	1	7	341,95	21	614	30 435,98
08/15/2024	13	430	21 366,70	11	420	20 966,40
08/16/2024	6	100	4 995,00	19	520	26 260,00
08/19/2024 08/20/2024	13 19	491 592	24 952,62 29 813,12	13 10	211 224	10 779,99 11 329,92
08/21/2024	5	148	7 454,76	29	836	42 602,56
08/22/2024	-	-	-	17	390	20 283,90
08/23/2024	36	1 496	77 283,36	-	-	-
08/26/2024	3	102	5 268,30	22	790	40 898,30
08/27/2024	24	848	43 578,72	14	463	23 895,43
08/28/2024	15	270	13 840,20	18	507	26 080,08
08/29/2024	10	334	17 070,74	10	265	13 594,50
08/30/2024	10	250	12 832,50	18	435	22 389,45
09/02/2024	20	550	27 934,50	10	304	15 488,80
09/03/2024	42	960	48 192,00	18	646	32 493,80
09/04/2024	40	1 100	54 615,00	14	520	25 963,60
09/05/2024	26	550	27 082,00	18	700	34 538,00
09/06/2024 09/09/2024	26 -	702 -	34 671,78 -	30 30	781 771	38 792,27 38 449,77
09/10/2024	17	700	34 888,00	38	850	42 491,50
09/11/2024	27	999	49 430,52	11	400	19 884,00
09/12/2024	78	3 150	147 987,00	6	300	14 379,00
09/13/2024	35	1 460	66 503,00	29	851	39 069,41
09/16/2024	39	1 490	66 394,40	8	200	8 966,00
09/17/2024	40	1 550	66 789,50	11	170	7 507,20
09/18/2024	21	850	35 844,50	7	320	13 529,60
09/19/2024	5	250	10 645,00	37	1 142	48 809,08
09/20/2024	7	160	6 904,00	31	1 198	52 544,28
09/23/2024	12	310	13 686,50	27	900	40 248,00
09/24/2024	-	-	-	37	1 100	50 446,00
09/25/2024	9	318	14 752,02	35	1 200	55 800,00
09/26/2024 09/27/2024	14 -	450 -	21 168,00 -	42 37	1 341 1 194	63 482,94 57 371,70
09/30/2024	15	350	17 031,00	34	950	46 445,50
10/01/2024	33	1 210	58 890,70	22	650	31 824,00
10/02/2024	34	1 001	47 917,87	16	650	31 265,00
10/03/2024	17	701	33 486,77	17	800	38 392,00
10/04/2024	23	1 148	54 667,76	3	150	7 189,50
10/07/2024	11	447	21 563,28	25	900	43 461,00
10/08/2024	45	2 102	101 106,20	12	450	21 744,00
10/09/2024	-	-	-	22	685	33 256,75
10/10/2024	31	1 039	51 025,29	27	966	47 517,54
10/11/2024	30	1 100	53 570,00	2	50	2 465,00

10/14/2024	28	1 002	48 436,68	17	650	31 570,50
10/15/2024	10	500	24 470,00	21	600	29 418,00
10/16/2024	12	650	31 960,50	23	834	41 174,58
10/17/2024	23	1 100	54 307,00	19	550	27 252,50
10/18/2024	27	1 298	63 407,30	2	100	4 945,00
10/21/2024	48	1 450	69 078,00	16	686	32 866,26
10/22/2024	14	450	21 294,00	20	648	30 754,08
10/23/2024	42	1 050	49 402,50	9	266	12 682,88
10/24/2024	35	782	36 237,88	9	300	14 031,00
10/25/2024	52	4 050	167 143,50	-	-	-
10/28/2024	41	1 375	52 470,00	32	950	36 432,50
10/29/2024	17	650	24 498,50	40	1 400	53 592,00
10/30/2024	32	750	29 002,50	17	513	19 981,35
10/31/2024	18	551	21 059,22	23	575	22 120,25
11/01/2024	2	49	1 866,90	34	879	34 316,16
11/04/2024	22	582	23 105,40	23	558	22 336,74
11/05/2024	38	1 018	39 345,70	22	650	25 285,00
11/06/2024	43	1 350	51 016,50	29	1 050	40 005,00
11/07/2024	1	50	1 877,50	30	1 150	44 010,50
11/08/2024	35	675	26 163,00	7	250	9 810,00
11/11/2024	5	200	7 670,00	11	325	12 538,50
11/12/2024	30	900	34 245,00	15	700	26 817,00
11/13/2024	36	750	28 177,50	21	650	24 570,00
11/14/2024	30	651	24 373,44	32	941	35 372,19
11/15/2024	33	1 099	40 377,26	11	400	14 944,00
11/18/2024	19	800	28 808,00	28	769	27 968,53
11/19/2024	31	900	31 536,00	14	551	19 417,24
11/20/2024	26	863	30 135,96	30	667	23 485,07
11/21/2024	13	337	11 724,23	11	436	15 225,12
11/22/2024	5	160	5 566,40	17	682	24 040,50
11/25/2024	38	1 378	48 863,88	39	1 199	42 672,41
11/26/2024	9	272	9 568,96	30	1 171	42 331,65
11/27/2024	23	900	33 246,00	34	1 159	43 126,39
11/28/2024	15	550	20 498,50	19	800	29 984,00
11/29/2024	10	300	11 286,00	16	600	22 758,00
12/02/2024	59	1 925	70 628,25	6	200	7 416,00
12/03/2024	34	790	27 776,40	11	400	14 136,00
12/04/2024	14	450	16 128,00	24	700	25 340,00
12/05/2024	7	200	7 106,00	26	983	35 309,36
12/06/2024	15	650	23 894,00	19	755	28 002,95
12/09/2024	24	557	20 731,54	39	1 350	50 976,00
12/10/2024	9	402	15 215,70	10	283	10 759,66
12/11/2024	-	-	-	35	393	15 240,54
12/12/2024	12	350	13 734,00	18	549	21 625,11
12/13/2024	6	200	8 250,00	59	1 975	81 824,25
12/16/2024	67	1 908	75 480,48	5	151	5 990,17
12/17/2024	48	942	36 954,66	22	640	25 196,80
12/18/2024	5	150	5 887,50	41	1 009	40 491,17
12/19/2024	4	135	5 414,85	-	-	-
12/23/2024	18	415	16 421,55	-	-	-
12/24/2024	-	-	-	6	250	10 435,00
12/30/2024	16	385	16 170,00	28	548	23 098,20
12/31/2024	-	-	-	47	1 452	64 338,12