ABB Ltd

Transaction in Own Shares • Sep 11, 2025

ZURICH, SWITZERLAND, SEPTEMBER 11, 2025

ABB share buybacks

September 4, 2025 – September 10, 2025

During the period September 4, 2025, to September 10, 2025, ABB repurchased a total of 301'979 shares as part of its share buyback program announced on February 7, 2025.

The buyback program is being carried out in accordance with the Swiss Ordinance on Financial Market Infrastructures and Market Conduct in Securities and Derivatives Trading (FMIO), the Market Abuse Regulation (EU) No 596/2014 ("MAR") and the Commission Delegated Regulation (EU) No 2016/1052 (the "Safe Harbour Regulation").

Date	Aggregated daily volume (number of shares)	Daily weighted average share price (CHF)	Daily buyback amount (CHF)
04-Sep-25	55'256	54.7962	3'027'817.06
05-Sep-25	106'000	55.3905	5'871'388.12
08-Sep-25	37'622	55.4829	2'087'377.51
09-Sep-25	64'000	55.8301	3'573'124.61
10-Sep-25	39'101	56.5376	2'210'678.57

All share purchases above have been carried out on a separate trading line on the SIX Swiss Exchange by a bank, on behalf of ABB. A full breakdown of the transactions pursuant to article 5.3 of MAR and article 2.3 of the Safe Harbour Regulation is attached to this announcement. The bank makes its trading decisions concerning the timing of share repurchases independently of ABB, within some defined parameters.

The total number of ABB Ltd shares which have been bought back within the current share buyback program from February 10, 2025, to and including September 10, 2025, is 16'374'857 shares.

Additional information is available on ABB's investor relations website site at https://global.abb/group/en/investors/investor-and-shareholder-resources/share-buybacks/2025

ABB is a global technology leader in electrification and automation, enabling a more sustainable and resource-efficient future. By connecting its engineering and digitalization expertise, ABB helps industries run at high performance, while becoming more efficient, productive and sustainable so they outperform. At ABB, we call this 'Engineered to Outrun'. The company has over 140 years of history and around 110,000 employees worldwide. ABB's shares are listed on the SIX Swiss Exchange (ABBN) and Nasdaq Stockholm (ABB). www.abb.com

— For more information please contact:

Media Relations Phone: +41 43 317 71 11 Email: media.relations@ch.abb.com

Investor Relations Phone: +41 43 317 71 11 Email: investor.relations@ch.abb.com ABB Ltd Affolternstrasse 44 8050 Zurich Switzerland

Appendix

Detailed individual transaction information:

All share purchases below were completed on a separate trading line on the SIX Swiss Exchange (Bloomberg ticker for SIX Exchange: SE)

Date	Time (CET)	Volume	Price	Exchange	05-Sep-25	09:03:57	1'000	55.34	SE
04-Sep-25	09:04:49	1'076	54.3	SE	05-Sep-25	09:04:18	1'000	55.34	SE
04-Sep-25	09:04:56	1'500	54.28	SE	05-Sep-25	09:14:09	1'000	55.18	SE
04-Sep-25	09:06:01	1'500	54.34	SE	05-Sep-25	09:14:29	1'000	55.18	SE
04-Sep-25	09:12:55	1'500	54.34	SE	05-Sep-25	09:22:41	247	55.18	SE
04-Sep-25	09:29:12	1'246	54.46	SE	05-Sep-25	09:22:41	1'000	55.18	SE
04-Sep-25	09:29:12	754	54.46	SE	05-Sep-25	09:26:05	1'753	55.22	SE
04-Sep-25	09:32:53	254	54.46	SE	05-Sep-25	09:34:06	1'000	55.3	SE
04-Sep-25	09:44:05	785	54.7	SE	05-Sep-25	09:43:31	1'000	55.46	SE
04-Sep-25	09:47:24	1'500	54.7	SE	05-Sep-25	09:48:00	1'000	55.46	SE
04-Sep-25	09:57:32	659	54.94	SE	05-Sep-25	09:53:19	1'000	55.44	SE
04-Sep-25	10:00:48	1'341	54.88	SE	05-Sep-25	09:53:52	1'000	55.46	SE
04-Sep-25	10:00:48	659	54.88	SE	05-Sep-25	10:02:58	2'000	55.48	SE
04-Sep-25	10:12:51	659	54.76	SE	05-Sep-25	10:13:07	174	55.4	SE
04-Sep-25	10:13:34	659	54.76	SE	05-Sep-25	10:15:40	493	55.44	SE
04-Sep-25	10:20:32	1'500	54.7	SE	05-Sep-25	10:17:41	1'000	55.46	SE
04-Sep-25	10:31:32	1'500	54.64	SE	05-Sep-25	10:23:20	1'000	55.42	SE
04-Sep-25	10:36:28	1'500	54.64	SE	05-Sep-25	10:28:51	1'000	55.5	SE
04-Sep-25	10:50:13	304	54.72	SE	05-Sep-25	10:35:03	264	55.46	SE
04-Sep-25	10:51:28	1'500	54.78	SE	05-Sep-25	10:36:30	1'000	55.44	SE
04-Sep-25	10:52:19	1'500	54.8	SE	05-Sep-25	10:36:30	1'000	55.44	SE
04-Sep-25	11:02:58	1'500	54.72	SE	05-Sep-25	10:48:21	1'000	55.42	SE
04-Sep-25	11:13:23	1'500	54.82	SE	05-Sep-25	10:50:00	1'000	55.44	SE
04-Sep-25	11:35:37	840	54.72	SE	05-Sep-25	10:56:33	1'000	55.46	SE
04-Sep-25	11:38:48	1'000	54.78	SE	05-Sep-25	11:00:03	2'000	55.5	SE
04-Sep-25	11:48:27	1'163	54.72	SE	05-Sep-25	11:16:25	1'000	55.4	SE
04-Sep-25	11:57:11	1'500	54.68	SE	05-Sep-25	11:19:16	798	55.44	SE
04-Sep-25	12:07:45	1'500	54.78	SE	05-Sep-25	11:27:40	1'000	55.34	SE
04-Sep-25	12:20:45	1'500	54.82	SE	05-Sep-25	11:37:30	1'000	55.42	SE
04-Sep-25	12:37:52	1'500	54.92	SE	05-Sep-25	11:38:50	202	55.44	SE
04-Sep-25	12:53:39	1'500	55	SE	05-Sep-25	11:40:06	1'000	55.44	SE
04-Sep-25	13:09:07	500	55.02	SE	05-Sep-25	11:49:20	1'000	55.48	SE
04-Sep-25	13:09:07	1'500	55.02	SE	05-Sep-25	11:52:27	1'000	55.48	SE
04-Sep-25	13:30:43	1'000	55.16	SE	05-Sep-25	12:00:02	1'000	55.48	SE
04-Sep-25	13:40:03	1'500	55.14	SE	05-Sep-25	12:04:35	434	55.44	SE
04-Sep-25	13:55:42	332	55.02	SE	05-Sep-25	12:04:35	566	55.44	SE
04-Sep-25	13:58:10	1'000	55.04	SE	05-Sep-25	12:11:16	1'000	55.44	SE
04-Sep-25	14:07:14	475	55.06	SE	05-Sep-25	12:20:22	1'000	55.42	SE
04-Sep-25	14:07:14	1'500	55.06	SE	05-Sep-25	12:29:38	1'000	55.38	SE
04-Sep-25	14:17:00	1'500	55.02	SE	05-Sep-25	12:38:15	1'000	55.4	SE
04-Sep-25	14:32:39	1'500	54.96	SE	05-Sep-25	12:47:46	965	55.4	SE
04-Sep-25	14:40:55	1'010	54.9	SE	05-Sep-25	12:47:46	35	55.4	SE
04-Sep-25	14:45:11	1'500	54.92	SE	05-Sep-25	12:55:43	1'000	55.38	SE
04-Sep-25	14:56:13	1'109	54.98	SE	05-Sep-25	13:06:33	1'000	55.38	SE
04-Sep-25	15:02:35	931	54.96	SE	05-Sep-25	13:13:50	1'000	55.4	SE
04-Sep-25	15:08:38	1'500	54.96	SE	05-Sep-25	13:29:05	2'000	55.5	SE
04-Sep-25	15:19:46	1'500	54.92	SE	05-Sep-25	13:39:37	210	55.48	SE
04-Sep-25	15:19:52	1'500	54.92	SE	05-Sep-25	13:41:16	1'000	55.46	SE
05-Sep-25	09:02:58	1'000	55.4	SE	05-Sep-25	13:55:26	790	55.48	SE
05-Sep-25	09:02:58	1'000	55.4	SE	05-Sep-25	13:59:20	1'000	55.48	SE

05 -Sep -25	14:03:47	617	55.48	SE	05 -Sep -25	16:40:00	1'000	55.1	SE
05 -Sep -25	14:08:30	1'000	55.46	SE	05 -Sep -25	16:43:27	743	55.08	SE
05 -Sep -25	14:09:49	1'000	55.46	SE	05 -Sep -25	16:45:19	1'000	55.06	SE
05 -Sep -25	14:24:31	1'000	55.38	SE	05 -Sep -25	16:46:50	438	55	SE
05 -Sep -25	14:30:09	1'000	55.42	SE	05 -Sep -25	16:46:58	562	55	SE
05 -Sep -25	14:33:54	1'000	55.38	SE	05 -Sep -25	16:50:48	1'000	55.04	SE
05 -Sep -25	14:39:32	1'000	55.38	SE	05 -Sep -25	16:52:22	1'000	55.08	SE
05 -Sep -25	14:41:17	1'000	55.34	SE	05 -Sep -25	16:54:19	147	55.1	SE
05 -Sep -25	14:47:53	186	55.46	SE	05 -Sep -25	16:55:20	73	55.14	SE
05 -Sep -25	14:47:55	1'000	55.46	SE	05 -Sep -25	16:55:24	927	55.14	SE
05 -Sep -25	14:53:18	1'000	55.48	SE	05 -Sep -25	16:58:36	434	55.08	SE
05 -Sep -25	14:58:21	1'000	55.54	SE	08 -Sep -25	09:03:25	1'000	55.42	SE
05 -Sep -25	15:04:37	1'000	55.56	SE	08 -Sep -25	09:03:25	1'000	55.42	SE
05 -Sep -25	15:10:07	1'000	55.58	SE	08 -Sep -25	09:04:28	1'000	55.38	SE
05 -Sep -25	15:15:11	660	55.62	SE	08 -Sep -25	09:09:21	1'000	55.36	SE
05 -Sep -25	15:17:38	340	55.62	SE	08 -Sep -25	09:24:13	423	55.44	SE
05 -Sep -25	15:21:28	1'000	55.68	SE	08 -Sep -25	09:24:13	455	55.44	SE
05 -Sep -25	15:21:28	1'000	55.68	SE	08 -Sep -25	09:24:41	1'000	55.5	SE
05 -Sep -25	15:30:31	1'000	55.68	SE	08 -Sep -25	09:34:12	1'000	55.68	SE
05 -Sep -25	15:30:31	1'000	55.68	SE	08 -Sep -25	09:45:26	1'000	55.62	SE
05 -Sep -25	15:55:15	200	55.46	SE	08 -Sep -25	09:59:18	1'000	55.5	SE
05 -Sep -25	15:55:45	552	55.46	SE	08 -Sep -25	10:02:58	1'000	55.5	SE
05 -Sep -25	15:55:45	248	55.46	SE	08 -Sep -25	10:02:58	1'000	55.5	SE
05 -Sep -25	15:55:48	1'000	55.46	SE	08 -Sep -25	10:25:14	1'000	55.42	SE
05 -Sep -25	15:55:48	1'000	55.46	SE	08 -Sep -25	10:35:45	1'000	55.38	SE
05 -Sep -25	15:55:48	766	55.46	SE	08 -Sep -25	10:46:39	1'000	55.34	SE
05 -Sep -25	15:55:48	234	55.46	SE	08 -Sep -25	10:46:39	1'000	55.34	SE
05 -Sep -25	15:55:49	1'000	55.46	SE	08 -Sep -25	11:05:44	1'000	55.32	SE
05 -Sep -25	15:55:49	65	55.46	SE	08 -Sep -25	11:16:04	723	55.32	SE
05 -Sep -25	15:55:49	935	55.46	SE	08 -Sep -25	11:16:04	1'000	55.32	SE
05 -Sep -25	15:55:49	1'000	55.46	SE	08 -Sep -25	11:32:35	879	55.36	SE
05 -Sep -25	15:55:50	760	55.46	SE	08 -Sep -25	11:41:57	1'000	55.42	SE
05 -Sep -25	15:55:50	240	55.46	SE	08 -Sep -25	11:56:01	919	55.4	SE
05 -Sep -25	15:55:50	1'000	55.46	SE	08 -Sep -25	12:04:05	1'000	55.44	SE
05 -Sep -25	15:55:50	1'000	55.46	SE	08 -Sep -25	12:15:20	1'000	55.42	SE
05 -Sep -25	15:56:11	1'000	55.46	SE	08 -Sep -25	12:28:17	509	55.48	SE
05 -Sep -25	16:00:28	1'000	55.46	SE	08 -Sep -25	12:33:57	2'000	55.5	SE
05 -Sep -25	16:00:30	1'000	55.46	SE	08 -Sep -25	13:02:00	1'189	55.46	SE
05 -Sep -25	16:02:50	1'000	55.36	SE	08 -Sep -25	13:25:37	1'000	55.46	SE
05 -Sep -25	16:04:51	353	55.4	SE	08 -Sep -25	13:31:25	1'000	55.46	SE
05 -Sep -25	16:05:42	1'000	55.42	SE	08 -Sep -25	13:56:46	1'000	55.52	SE
05 -Sep -25	16:07:14	963	55.4	SE	08 -Sep -25	14:09:12	1'000	55.5	SE
05 -Sep -25	16:08:23	37	55.4	SE	08 -Sep -25	14:18:50	1'000	55.52	SE
05 -Sep -25	16:09:04	1'000	55.42	SE	08 -Sep -25	14:31:48	374	55.62	SE
05 -Sep -25	16:10:41	1'000	55.46	SE	08 -Sep -25	14:31:48	585	55.62	SE
05 -Sep -25	16:12:24	1'000	55.46	SE	08 -Sep -25	14:36:32	1'000	55.66	SE
05 -Sep -25	16:12:24	1'000	55.46	SE	08 -Sep -25	14:44:25	1'000	55.68	SE
05 -Sep -25	16:16:50	1'000	55.44	SE	08 -Sep -25	14:55:31	548	55.7	SE
05 -Sep -25	16:18:29	1'000	55.38	SE	08 -Sep -25	15:03:06	254	55.62	SE
05 -Sep -25	16:20:50	974	55.36	SE	08 -Sep -25	15:03:06	312	55.62	SE
05 -Sep -25	16:22:56	1'000	55.3	SE	08 -Sep -25	15:04:05	1'000	55.62	SE
05 -Sep -25	16:23:40	615	55.24	SE	08 -Sep -25	15:13:36	452	55.72	SE
05 -Sep -25	16:26:22	1'000	55.14	SE	08 -Sep -25	15:18:45	1'000	55.72	SE
05 -Sep -25	16:28:43	541	55.14	SE	09 -Sep -25	09:02:38	1'000	55.96	SE
05 -Sep -25	16:29:14	459	55.14	SE	09 -Sep -25	09:02:38	575	55.96	SE
05 -Sep -25	16:30:50	1'000	55.16	SE	09 -Sep -25	09:02:38	425	55.96	SE
05 -Sep -25	16:30:51	1'000	55.16	SE	09 -Sep -25	09:03:17	1'000	55.86	SE
05 -Sep -25	16:33:40	2'000	55.1	SE	09 -Sep -25	09:08:54	1'000	55.66	SE
05 -Sep -25	16:39:06	1'000	55.12	SE	09 -Sep -25	09:17:03	1'000	55.92	SE

09 -Sep -25	09:29:58	714	56.02	SE	09 -Sep -25	16:27:12	1'000	55.82	SE
09 -Sep -25	09:29:58	286	56.02	SE	09 -Sep -25	16:27:14	1'000	55.82	SE
09 -Sep -25	09:30:15	437	55.9	SE	09 -Sep -25	16:30:52	1'000	55.82	SE
09 -Sep -25	09:39:32	1'000	55.84	SE	09 -Sep -25	16:34:58	616	55.74	SE
09 -Sep -25	09:50:45	421	55.78	SE	09 -Sep -25	16:37:05	384	55.74	SE
09 -Sep -25	09:55:54	430	55.74	SE	09 -Sep -25	16:38:25	1'000	55.74	SE
09 -Sep -25	09:55:54	570	55.74	SE	09 -Sep -25	16:42:53	1'000	55.7	SE
09 -Sep -25	10:04:06	897	55.8	SE	09 -Sep -25	16:48:30	1'000	55.68	SE
09 -Sep -25	10:04:06	103	55.8	SE	09 -Sep -25	16:52:42	1'000	55.68	SE
09 -Sep -25	10:05:20	1'000	55.76	SE	09 -Sep -25	16:56:05	260	55.72	SE
09 -Sep -25	10:22:44	1'000	55.78	SE	10 -Sep -25	09:07:21	1'000	56.9	SE
09 -Sep -25	10:30:07	274	55.74	SE	10 -Sep -25	09:07:21	1'000	56.9	SE
09 -Sep -25	10:30:07	1'726	55.74	SE	10 -Sep -25	09:09:40	1'000	56.84	SE
09 -Sep -25	10:48:06	1'000	55.64	SE	10 -Sep -25	09:21:45	1'000	56.7	SE
09 -Sep -25	10:58:48	500	55.74	SE	10 -Sep -25	09:25:07	1'000	56.62	SE
09 -Sep -25	10:58:48	1'000	55.74	SE	10 -Sep -25	09:34:48	1'000	56.52	SE
09 -Sep -25	11:13:47	875	55.86	SE	10 -Sep -25	09:42:42	1'000	56.36	SE
09 -Sep -25	11:21:12	863	55.84	SE	10 -Sep -25	09:53:15	1'000	56.42	SE
09 -Sep -25	11:32:04	1'000	55.82	SE	10 -Sep -25	10:05:56	1'000	56.44	SE
09 -Sep -25	11:32:04	991	55.82	SE	10 -Sep -25	10:14:37	1'000	56.46	SE
09 -Sep -25	11:51:56	1'577	55.86	SE	10 -Sep -25	10:27:05	1'000	56.44	SE
09 -Sep -25	12:05:59	2'000	56.04	SE	10 -Sep -25	10:30:37	1'000	56.38	SE
09 -Sep -25	12:34:15	1'000	56.02	SE	10 -Sep -25	10:33:33	91	56.32	SE
09 -Sep -25	12:34:15	1'000	56.02	SE	10 -Sep -25	10:35:45	909	56.32	SE
09 -Sep -25	13:02:13	1'000	55.94	SE	10 -Sep -25	10:45:48	374	56.3	SE
09 -Sep -25	13:17:35	1'000	55.84	SE	10 -Sep -25	10:45:48	1'000	56.3	SE
09 -Sep -25	13:21:56	1'000	55.84	SE	10 -Sep -25	11:11:36	1'000	56.32	SE
09 -Sep -25	13:48:46	60	55.8	SE	10 -Sep -25	11:21:15	1'000	56.28	SE
09 -Sep -25	13:50:10	1'000	55.78	SE	10 -Sep -25	11:25:06	1'000	56.26	SE
09 -Sep -25	13:59:23	940	55.8	SE	10 -Sep -25	11:43:35	1'000	56.42	SE
09 -Sep -25	14:11:45	438	55.82	SE	10 -Sep -25	11:43:35	1'000	56.42	SE
09 -Sep -25	14:11:45	562	55.82	SE	10 -Sep -25	12:05:29	1'000	56.46	SE
09 -Sep -25	14:23:00	1'000	55.86	SE	10 -Sep -25	12:05:29	727	56.46	SE
09 -Sep -25	14:34:00	1'000	55.86	SE	10 -Sep -25	12:26:54	1'000	56.52	SE
09 -Sep -25	14:39:40	856	55.84	SE	10 -Sep -25	12:36:33	2'000	56.58	SE
09 -Sep -25	14:45:29	220	55.82	SE	10 -Sep -25	12:51:32	2'000	56.62	SE
09 -Sep -25	14:50:11	382	55.98	SE	10 -Sep -25	13:40:26	1'000	56.6	SE
09 -Sep -25	14:50:25	618	55.98	SE	10 -Sep -25	13:59:53	1'000	56.54	SE
09 -Sep -25	14:57:36	1'000	55.96	SE	10 -Sep -25	14:13:25	1'000	56.52	SE
09 -Sep -25	15:08:35	1'000	55.88	SE	10 -Sep -25	14:15:55	1'000	56.52	SE
09 -Sep -25	15:08:35	1'000	55.88	SE	10 -Sep -25	14:23:00	1'000	56.54	SE
09 -Sep -25	15:23:27	1'000	55.84	SE	10 -Sep -25	14:40:55	203	56.68	SE
09 -Sep -25	15:31:08	1'000	55.82	SE	10 -Sep -25	14:42:21	797	56.7	SE
09 -Sep -25	15:31:08	1'000	55.82	SE	10 -Sep -25	14:45:22	1'000	56.7	SE
09 -Sep -25	15:31:19	1'000	55.82	SE	10 -Sep -25	14:58:05	1'000	56.74	SE
09 -Sep -25	15:35:03	1'000	55.78	SE	10 -Sep -25	15:09:08	1'000	56.64	SE
09 -Sep -25	15:40:48	1'000	55.74	SE	10 -Sep -25	15:18:50	1'000	56.72	SE
09 -Sep -25	15:45:25	1'000	55.78	SE	10 -Sep -25	15:30:01	1'000	56.56	SE
09 -Sep -25	15:46:23	1'000	55.78	SE	10 -Sep -25	15:30:01	1'000	56.56	SE
09 -Sep -25	15:54:17	607	55.82	SE	10 -Sep -25	15:30:10	1'000	56.56	SE
09 -Sep -25	15:54:17	1'000	55.82	SE
09 -Sep -25	15:54:17	393	55.82	SE
09 -Sep -25	16:00:57	1'000	55.82	SE
09 -Sep -25	16:03:19	1'000	55.82	SE
09 -Sep -25	16:19:15	1'000	55.82	SE
09 -Sep -25	16:19:15	1'000	55.82	SE
09 -Sep -25	16:19:15	1'000	55.82	SE
09 -Sep -25 09 -Sep -25	16:19:48 16:19:50	1'000 1'000	55.82 55.82	SE SE