Tradegate Exchange

Siemens Energy AG

Information
letzte Umsätze
kaufen
verkaufen

1909

4276

63,50

Datum	Uhrzeit	Stückzahl	Auftragsstückzahl	Kurs
17.04.2025	09:20:58,642	700		65,44
			14	65,44
			686	65,44
			700	65,44
17.04.2025	09:20:53,823	500		65,46
			500	65,46
			500	65,46
17.04.2025	09:20:53,394	30		65,42
			30	65,42
			30	65,42
17.04.2025	09:20:53,317	150		65,42
			150	65,42
			150	65,42
17.04.2025	09:20:53,200	500		65,42
			500	65,42
			500	65,42
17.04.2025	09:20:53,054	500		65,42
			500	65,42
			500	65,42
17.04.2025	09:20:52,004	500		65,44
			500	65,44
			500	65,44
17.04.2025	09:20:51,940	70		65,44
			70	65,44
			70	65,44
17.04.2025	09:20:49,337	290		65,50
			40	65,50
			28	65,50
			10	65,50
			100	65,50
			84	65,50
			27	65,50
			1	65,50
			290	65,50
17.04.2025	09:20:49,283	300		65,48
			300	65,48
			300	65,48
17.04.2025	09:20:46,630	13		65,48
			4	65,48
			9	65,48
			13	65,48
17.04.2025	09:20:44,257	286		65,46
			286	65,46
			286	65,46
17.04.2025	09:20:42,219	350		65,44
			100	65,44
			1	65,44
			8	65,44
			350	65,44
			32	65,44
			209	65,44
17.04.2025	09:20:33,001	500		65,44
			500	65,44
			500	65,44
17.04.2025	09:20:28,343	1		65,38
			1	65,38
			1	65,38
17.04.2025	09:20:27,437	10		65,40
			10	65,40
			10	65,40
17.04.2025	09:20:26,854	300		65,40
			300	65,40
			300	65,40
17.04.2025	09:20:22,082	250		65,44
			250	65,44
			250	65,44
17.04.2025	09:20:20,501	6		65,38
			6	65,38
			6	65,38
17.04.2025	09:20:19,996	129		65,44
			129	65,44
			129	65,44
17.04.2025	09:20:19,879	150		65,40
			150	65,40
			150	65,40
17.04.2025	09:20:18,821	73		65,36
			73	65,36
			73	65,36
17.04.2025	09:20:17,813	500		65,36
			500	65,36
			1	65,36
			499	65,36
17.04.2025	09:20:08,169	500		65,44
			500	65,44
			500	65,44
17.04.2025	09:20:08,125	500		65,44
			500	65,44
			500	65,44
17.04.2025	09:20:05,996	20		65,38
			20	65,38
			20	65,38
17.04.2025	09:19:59,973	150		65,38
			150	65,38
			150	65,38
17.04.2025	09:19:54,696	400		65,38
			400	65,38
			400	65,38
17.04.2025	09:19:54,240	100		65,38
			100	65,38
			100	65,38
17.04.2025	09:19:53,710	150		65,38
			150	65,38
			150	65,38
17.04.2025	09:19:53,075	150		65,38
			150	65,38
			150	65,38
17.04.2025	09:19:43,738	40		65,42
			40	65,42
			40	65,42
17.04.2025	09:19:42,525	500		65,42
			500	65,42
			500	65,42
17.04.2025	09:19:42,337	60		65,42
			60	65,42
			60	65,42
17.04.2025	09:19:41,706	50		65,40
			50	65,40
			50	65,40
17.04.2025	09:19:38,674	500		65,42
			500	65,42
			400	65,42
			100	65,42
17.04.2025	09:19:38,496	18		65,40
			18	65,40
			18	65,40
17.04.2025	09:19:38,094	40		65,38
			40	65,38
			40	65,38
17.04.2025	09:19:32,432	1		65,38
			1	65,38
			1	65,38
17.04.2025	09:19:30,414	30		65,30
			30	65,30
			30	65,30
17.04.2025	09:19:30,314	1		65,38
			1	65,38
			1	65,38
17.04.2025	09:19:27,959	150		65,30
			150	65,30
			115	65,30
			35	65,30
17.04.2025	09:19:22,584	15		65,24
			15	65,24
			15	65,24
17.04.2025	09:19:18,143	70		65,20
			70	65,20
			70	65,20
17.04.2025	09:19:17,820	31		65,24
			31	65,24
			31	65,24
17.04.2025	09:19:14,059	26		65,22
			26	65,22
			26	65,22
17.04.2025	09:19:10,803	32		65,18
			32	65,18
			32	65,18
17.04.2025	09:19:10,740	42		65,18
			42	65,18
			42	65,18
17.04.2025	09:19:10,395	81		65,16
			81	65,16
			81	65,16
17.04.2025	09:19:01,911	50		65,26
			50	65,26
			50	65,26
17.04.2025	09:18:54,054	80		65,16
			80	65,16
			80	65,16
17.04.2025	09:18:51,300	80		65,06
			80	65,06
			80	65,06
17.04.2025	09:18:51,228	50		65,06
			50	65,06
			50	65,06
17.04.2025	09:18:50,427	225		65,08
			225	65,08
			100	65,08
			125	65,08
17.04.2025	09:18:46,165	100		65,18
			100	65,18
			100	65,18
17.04.2025	09:18:45,393	55		65,20
			55	65,20
			55	65,20
17.04.2025	09:18:44,749	200		65,32
			100	65,32
			100	65,32
			1	65,32
			199	65,32
17.04.2025	09:18:30,158	500		65,32
			500	65,32
			500	65,32
17.04.2025	09:18:27,445	500		65,32
			500	65,32
			500	65,32
17.04.2025	09:18:27,393	1 000		65,30
			1 000	65,30
			1 000	65,30
17.04.2025	09:18:25,210	300		65,32
			300	65,32
			300	65,32
17.04.2025	09:18:23,397	3 850		65,32
			268	65,32
			1 000	65,32
			16	65,32
			5	65,32
			1 350	65,32
			5	65,32
			250	65,32
			177	65,32
			50	65,32
			1 000	65,32
			80	65,32
			240	65,32
			1 000	65,32
			20	65,32
			1 000	65,32
			180	65,32
			59	65,32
			850	65,32
			50	65,32
			100	65,32
17.04.2025	09:18:15,696	2 830		65,04
			2 830	65,04
			2 446	65,04
			384	65,04
17.04.2025	09:18:14,561	500		65,04
			100	65,04
			50	65,04
			169	65,04
			170	65,04
			3	65,04
			8	65,04
			500	65,04
17.04.2025	09:18:11,641	9 250		65,04
			21	65,04
			200	65,04
			15	65,04
			200	65,04
			50	65,04
			30	65,04
			50	65,04
			75	65,04
			50	65,04
			500	65,04
			3	65,04
			50	65,04
			80	65,04
			30	65,04
			365	65,04
			90	65,04
			27	65,04
			181	65,04
			15	65,04
			75	65,04
			3	65,04
			100	65,04
			886	65,04
			10	65,04
			10	65,04
			3	65,04
			5	65,04
			30	65,04
			50	65,04
			25	65,04
			50	65,04
			5	65,04
			53	65,04
			15	65,04
			1 000	65,04
			100	65,04
			30	65,04
			10	65,04
			75	65,04
			50	65,04
			24	65,04
			62	65,04
			100	65,04
			250	65,04
			88	65,04
			250	65,04
			116	65,04
			25	65,04
			190	65,04
			15	65,04
			3 000	65,04
			42	65,04
			35	65,04
			50	65,04
			100	65,04
			550	65,04
			12	65,04
			35	65,04
			1	65,04
			45	65,04
			100	65,04
			30	65,04
			1 250	65,04
			200	65,04
			14	65,04
			500	65,04
			40	65,04
			50	65,04
			135	65,04
			600	65,04
			54	65,04
			3 000	65,04
			10	65,04
			20	65,04
			180	65,04
			45	65,04
			203	65,04
			10	65,04
			25	65,04
			155	65,04
			20	65,04
			50	65,04
			2 000	65,04
			2	65,04
			200	65,04
17.04.2025	09:18:08,531	12 000		65,00
			57	65,00
			6	65,00
			30	65,00
			100	65,00
			100	65,00
			87	65,00
			100	65,00
			346	65,00
			150	65,00
			50	65,00
			35	65,00
			500	65,00
			1 000	65,00
			70	65,00
			1 000	65,00
			2	65,00
			50	65,00
			40	65,00
			15	65,00
			37	65,00
			1 307	65,00
			10	65,00
			50	65,00
			200	65,00
			100	65,00
			100	65,00
			40	65,00
			3 000	65,00
			50	65,00
			530	65,00
			100	65,00
			48	65,00
			30	65,00
			100	65,00
			63	65,00
			1	65,00
			71	65,00
			1 000	65,00
			46	65,00
			40	65,00
			100	65,00
			5	65,00
			2 000	65,00
			58	65,00
			600	65,00
			34	65,00
			100	65,00
			1	65,00
			35	65,00
			70	65,00
			600	65,00
			10	65,00
			85	65,00
			5	65,00
			25	65,00
			10	65,00
			50	65,00
			20	65,00
			20	65,00
			1 000	65,00
			11	65,00
			500	65,00
			50	65,00
			3	65,00
			10	65,00
			19	65,00
			25	65,00
			50	65,00
			35	65,00
			174	65,00
			1 000	65,00
			100	65,00
			20	65,00
			210	65,00
			52	65,00
			7	65,00
			100	65,00
			10	65,00
			40	65,00
			1 500	65,00
			200	65,00
			150	65,00
			10	65,00
			60	65,00
			2 000	65,00
			70	65,00
			40	65,00
			500	65,00
			10	65,00
			20	65,00
			100	65,00
			4	65,00
			1 431	65,00
17.04.2025	09:18:05,464	2 250		65,00
			30	65,00
			50	65,00
			1 000	65,00
			5	65,00
			250	65,00
			100	65,00
			212	65,00
			1 000	65,00
			481	65,00
			150	65,00
			1 000	65,00
			30	65,00
			150	65,00
			42	65,00
17.04.2025	09:18:03,569	1 500		65,00
			88	65,00
			1 500	65,00
			477	65,00
			300	65,00
			18	65,00
			5	65,00
			200	65,00
			200	65,00
			45	65,00
			100	65,00
			67	65,00
17.04.2025	09:18:00,693	490		64,96
			250	64,96
			490	64,96
			100	64,96
			140	64,96
17.04.2025	09:18:00,630	140		64,92
			140	64,92
			40	64,92
			100	64,92
17.04.2025	09:17:57,980	500		64,92
			500	64,92
			500	64,92
17.04.2025	09:17:56,478	15		64,90
			15	64,90
			15	64,90
17.04.2025	09:17:49,815	7		64,94
			7	64,94
			7	64,94
17.04.2025	09:17:49,432	100		64,94
			100	64,94
			100	64,94
17.04.2025	09:17:47,663	70		64,92
			70	64,92
			70	64,92
17.04.2025	09:17:47,558	416		64,94
			1	64,94
			3	64,94
			14	64,94
			2	64,94
			400	64,94
			100	64,94
			20	64,94
			200	64,94
			51	64,94
			8	64,94
			33	64,94
17.04.2025	09:17:26,342	7 186		64,90
			6	64,90
			600	64,90
			20	64,90
			125	64,90
			70	64,90
			686	64,90
			26	64,90
			200	64,90
			85	64,90
			61	64,90
			50	64,90
			100	64,90
			500	64,90
			100	64,90
			85	64,90
			500	64,90
			920	64,90
			1 000	64,90
			403	64,90
			80	64,90
			2 000	64,90
			1 500	64,90
			2 225	64,90
			780	64,90
			1 500	64,90
			50	64,90
			700	64,90
17.04.2025	09:17:16,627	500		64,76
			97	64,76
			500	64,76
			403	64,76
17.04.2025	09:17:16,490	1 674		64,76
			308	64,76
			866	64,76
			1 674	64,76
			500	64,76
17.04.2025	09:17:16,360	500		64,76
			500	64,76
			500	64,76
17.04.2025	09:17:16,083	1 762		64,76
			866	64,76
			10	64,76
			500	64,76
			1 729	64,76
			386	64,76
			33	64,76
17.04.2025	09:17:12,869	500		64,76
			75	64,76
			53	64,76
			500	64,76
			372	64,76
17.04.2025	09:17:11,106	46		64,74
			46	64,74
			46	64,74
17.04.2025	09:17:09,535	2		64,70
			2	64,70
			2	64,70
17.04.2025	09:17:04,439	70		64,74
			70	64,74
			70	64,74
17.04.2025	09:17:02,934	50		64,74
			50	64,74
			50	64,74
17.04.2025	09:17:02,393	205		64,70
			205	64,70
			205	64,70
17.04.2025	09:16:57,055	16		64,74
			16	64,74
			16	64,74
17.04.2025	09:16:48,434	54		64,60
			4	64,60
			54	64,60
			50	64,60
17.04.2025	09:16:48,368	50		64,54
			25	64,54
			50	64,54
			25	64,54
17.04.2025	09:16:46,045	1 049		64,54
			40	64,54
			1 049	64,54
			9	64,54
			1 000	64,54
17.04.2025	09:16:35,876	170		64,58
			170	64,58
			170	64,58
17.04.2025	09:16:22,474	1		64,50
			1	64,50
			1	64,50
17.04.2025	09:16:22,406	300		64,54
			300	64,54
			300	64,54
17.04.2025	09:16:20,988	200		64,50
			100	64,50
			200	64,50
			100	64,50
17.04.2025	09:16:20,909	45		64,40
			20	64,40
			25	64,40
			45	64,40
17.04.2025	09:16:20,855	14		64,36
			14	64,36
			14	64,36
17.04.2025	09:16:20,758	200		64,30
			200	64,30
			200	64,30
17.04.2025	09:16:18,770	1 994		64,30
			218	64,30
			866	64,30
			40	64,30
			870	64,30
			1 524	64,30
			450	64,30
			20	64,30
17.04.2025	09:16:06,012	500		64,44
			24	64,44
			476	64,44
			500	64,44
17.04.2025	09:15:57,110	500		64,44
			500	64,44
			500	64,44
17.04.2025	09:15:54,933	313		64,42
			16	64,42
			77	64,42
			15	64,42
			100	64,42
			313	64,42
			30	64,42
			75	64,42
17.04.2025	09:15:32,547	500		64,44
			500	64,44
			500	64,44
17.04.2025	09:15:26,338	208		64,50
			8	64,50
			208	64,50
			200	64,50
17.04.2025	09:15:21,230	300		64,50
			300	64,50
			300	64,50
17.04.2025	09:15:21,146	500		64,50
			500	64,50
			500	64,50
17.04.2025	09:15:19,972	200		64,50
			200	64,50
			200	64,50
17.04.2025	09:15:18,233	100		64,52
			100	64,52
			100	64,52
17.04.2025	09:15:15,414	10		64,56
			10	64,56
			10	64,56
17.04.2025	09:15:11,429	100		64,50
			100	64,50
			100	64,50
17.04.2025	09:15:03,390	500		64,50
			500	64,50
			500	64,50
17.04.2025	09:15:02,582	4		64,48
			4	64,48
			4	64,48
17.04.2025	09:15:00,579	500		64,42
			500	64,42
			500	64,42
17.04.2025	09:14:58,569	500		64,48
			500	64,48
			500	64,48
17.04.2025	09:14:45,591	20		64,50
			20	64,50
			20	64,50
17.04.2025	09:14:45,005	230		64,46
			230	64,46
			230	64,46
17.04.2025	09:14:44,957	500		64,46
			500	64,46
			500	64,46
17.04.2025	09:14:38,955	300		64,66
			300	64,66
			300	64,66
17.04.2025	09:14:38,790	3		64,66
			3	64,66
			3	64,66
17.04.2025	09:14:37,907	16		64,66
			16	64,66
			16	64,66
17.04.2025	09:14:33,482	330		64,66
			330	64,66
			330	64,66
17.04.2025	09:14:32,613	160		64,70
			160	64,70
			160	64,70
17.04.2025	09:14:29,397	5		64,74
			5	64,74
			5	64,74
17.04.2025	09:14:28,307	840		64,70
			840	64,70
			300	64,70
			500	64,70
			40	64,70
17.04.2025	09:14:26,883	500		64,62
			500	64,62
			500	64,62
17.04.2025	09:14:26,614	10		64,64
			10	64,64
			10	64,64
17.04.2025	09:14:25,590	60		64,62
			60	64,62
			60	64,62
17.04.2025	09:14:24,514	500		64,64
			500	64,64
			500	64,64
17.04.2025	09:14:24,307	1 303		64,60
			35	64,60
			15	64,60
			1 303	64,60
			490	64,60
			55	64,60
			4	64,60
			158	64,60
			250	64,60
			26	64,60
			230	64,60
			40	64,60
17.04.2025	09:14:21,917	3 960		64,54
			15	64,54
			150	64,54
			350	64,54
			210	64,54
			70	64,54
			50	64,54
			30	64,54
			3 960	64,54
			50	64,54
			150	64,54
			3	64,54
			20	64,54
			150	64,54
			155	64,54
			65	64,54
			40	64,54
			100	64,54
			20	64,54
			30	64,54
			50	64,54
			8	64,54
			182	64,54
			12	64,54
			1 000	64,54
			100	64,54
			20	64,54
			30	64,54
			700	64,54
			200	64,54
17.04.2025	09:14:10,696	30		64,44
			30	64,44
			30	64,44
17.04.2025	09:14:04,457	1 000		64,46
			845	64,46
			155	64,46
			1 000	64,46
17.04.2025	09:13:58,064	30		64,46
			30	64,46
			27	64,46
			3	64,46
17.04.2025	09:13:53,947	45		64,40
			30	64,40
			45	64,40
			15	64,40
17.04.2025	09:13:53,872	20		64,36
			20	64,36
			20	64,36
17.04.2025	09:13:53,784	300		64,34
			300	64,34
			300	64,34
17.04.2025	09:13:48,587	235		64,34
			210	64,34
			235	64,34
			25	64,34
17.04.2025	09:13:48,508	125		64,30
			125	64,30
			125	64,30
17.04.2025	09:13:48,432	120		64,26
			120	64,26
			120	64,26
17.04.2025	09:13:48,356	10		64,20
			10	64,20
			10	64,20
17.04.2025	09:13:48,264	107		64,12
			10	64,12
			97	64,12
			107	64,12
17.04.2025	09:13:48,143	200		64,26
			100	64,26
			100	64,26
			200	64,26
17.04.2025	09:13:48,056	1 500		64,34
			55	64,34
			500	64,34
			1 000	64,34
			50	64,34
			250	64,34
			500	64,34
			100	64,34
			100	64,34
			30	64,34
			200	64,34
			15	64,34
			200	64,34
17.04.2025	09:13:44,994	13 563		64,04
			31	64,04
			16	64,04
			12	64,04
			20	64,04
			83	64,04
			25	64,04
			200	64,04
			100	64,04
			4	64,04
			35	64,04
			1	64,04
			16	64,04
			27	64,04
			570	64,04
			100	64,04
			40	64,04
			2 000	64,04
			100	64,04
			200	64,04
			350	64,04
			100	64,04
			1 000	64,04
			922	64,04
			79	64,04
			1 600	64,04
			96	64,04
			100	64,04
			60	64,04
			1 000	64,04
			50	64,04
			30	64,04
			20	64,04
			50	64,04
			50	64,04
			300	64,04
			450	64,04
			120	64,04
			50	64,04
			47	64,04
			25	64,04
			100	64,04
			200	64,04
			100	64,04
			30	64,04
			995	64,04
			5 000	64,04
			80	64,04
			3 000	64,04
			100	64,04
			465	64,04
			200	64,04
			5	64,04
			100	64,04
			25	64,04
			2 000	64,04
			50	64,04
			200	64,04
			100	64,04
			30	64,04
			80	64,04
			16	64,04
			50	64,04
			78	64,04
			100	64,04
			200	64,04
			70	64,04
			3 443	64,04
			200	64,04
			30	64,04
17.04.2025	09:13:35,376	500		64,00
			400	64,00
			10	64,00
			54	64,00
			500	64,00
			6	64,00
			20	64,00
			10	64,00
17.04.2025	09:13:29,201	150		63,90
			150	63,90
			150	63,90
17.04.2025	09:13:19,464	8 000		63,90
			8 000	63,90
			20	63,90
			7 976	63,90
			2	63,90
			2	63,90
17.04.2025	09:13:09,677	200		63,94
			200	63,94
			200	63,94
17.04.2025	09:13:09,610	507		63,94
			500	63,94
			407	63,94
			7	63,94
			100	63,94
17.04.2025	09:13:02,765	500		64,00
			130	64,00
			40	64,00
			80	64,00
			2	64,00
			5	64,00
			100	64,00
			112	64,00
			500	64,00
			1	64,00
			30	64,00
17.04.2025	09:13:02,670	900		63,98
			866	63,98
			34	63,98
			900	63,98
17.04.2025	09:13:01,112	500		63,98
			400	63,98
			100	63,98
			500	63,98
17.04.2025	09:13:00,676	110		63,94
			110	63,94
			110	63,94
17.04.2025	09:12:59,654	25		63,96
			25	63,96
			25	63,96
17.04.2025	09:12:57,280	200		63,96
			200	63,96
			200	63,96
17.04.2025	09:12:57,059	1		63,96
			1	63,96
			1	63,96
17.04.2025	09:12:54,565	815		63,96
			12	63,96
			40	63,96
			815	63,96
			113	63,96
			650	63,96
17.04.2025	09:12:48,324	500		63,94
			500	63,94
			500	63,94
17.04.2025	09:12:45,710	125		63,94
			125	63,94
			125	63,94
17.04.2025	09:12:44,820	36		63,92
			36	63,92
			36	63,92
17.04.2025	09:12:41,922	1		63,92
			1	63,92
			1	63,92
17.04.2025	09:12:41,576	16		63,92
			16	63,92
			16	63,92
17.04.2025	09:12:41,459	261		63,90
			161	63,90
			261	63,90
			100	63,90
17.04.2025	09:12:41,235	500		63,90
			50	63,90
			500	63,90
			39	63,90
			350	63,90
			61	63,90
17.04.2025	09:12:40,998	350		63,88
			50	63,88
			350	63,88
			300	63,88
17.04.2025	09:12:37,448	500		63,90
			400	63,90
			100	63,90
			500	63,90
17.04.2025	09:12:37,327	45		63,88
			45	63,88
			45	63,88
17.04.2025	09:12:35,637	500		63,86
			400	63,86
			500	63,86
			100	63,86
17.04.2025	09:12:35,068	1		63,84
			1	63,84
			1	63,84
17.04.2025	09:12:34,712	51		63,88
			50	63,88
			20	63,88
			31	63,88
			1	63,88
17.04.2025	09:12:25,405	100		63,84
			100	63,84
			100	63,84
17.04.2025	09:12:23,207	1		63,84
			1	63,84
			1	63,84
17.04.2025	09:12:20,448	1		63,80
			1	63,80
			1	63,80
17.04.2025	09:12:19,147	30		63,84
			30	63,84
			30	63,84
17.04.2025	09:12:16,079	500		63,80
			500	63,80
			500	63,80
17.04.2025	09:12:13,779	31		63,76
			31	63,76
			31	63,76
17.04.2025	09:12:07,779	200		63,78
			200	63,78
			200	63,78
17.04.2025	09:12:05,813	33		63,74
			33	63,74
			33	63,74
17.04.2025	09:12:02,678	50		63,72
			50	63,72
			50	63,72
17.04.2025	09:11:58,517	5		63,80
			5	63,80
			5	63,80
17.04.2025	09:11:50,350	500		63,82
			500	63,82
			500	63,82
17.04.2025	09:11:49,637	75		63,82
			75	63,82
			75	63,82

Copyright © 2025 Tradegate Exchange GmbH
Bitte beachten Sie das Regelwerk

DAX®, MDAX®, TecDAX® und SDAX® sind eingetragene Markenzeichen der ISS STOXX Index GmbH
EURO STOXX®-Werte bezeichnet Werte der Marke „EURO STOXX“ der STOXX Limited und/oder ihrer Lizenzgeber
TRADEGATE® ist eine eingetragene Marke der Tradegate AG

Kurse in EUR; Fremdwährungsanleihen in der jeweiligen Währung
Zeitangaben in CEST (UTC+2)

Kurssuche

Kurslisten Aktien

Publikationen

Handelszeit
0:00 bis 0:00 Uhr

Finanz-Nachrichten

Titel des Tages

Nvidia Corp.

Bid: 89,07 / Ask: 89,16
Stückzahl: 838 057
-2,76%

Link zum App Store für die tradegate App

Top 5 Umsatz

Realtime Quotes
Letzte Aktualisierung:
17.04.2025 @ 22:00:00

Kontakt	Regelwerk/Bekanntmachungen	Handelskalender
Impressum	Nutzungsbedingungen	Datenschutzerklärung