ABB Ltd

Transaction in Own Shares • Oct 2, 2025

ZURICH, SWITZERLAND, OCTOBER 2, 2025

ABB share buybacks

September 25, 2025 – October 1, 2025

During the period September 25, 2025, to October 1, 2025, ABB repurchased a total of 238'201 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)
25-Sep-25	47'457	56.1827	2'666'260.45
26-Sep-25	53'000	56.7940	3'010'082.27
29-Sep-25	51'231	57.1767	2'929'217.67
30-Sep-25	49'513	57.1106	2'827'719.02
01-Oct-25	37'000	57.0049	2'109'180.01

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 October 1, 2025, 17'122'675 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	25-Sep-25	15:30:44	1'000	55.92	SE
25-Sep-25	09:08:06	500	56.28	SE	25-Sep-25	15:30:44	649	55.9	SE
25-Sep-25	09:08:06	500	56.28	SE	25-Sep-25	15:40:31	790	55.9	SE
25-Sep-25	09:08:06	500	56.28	SE	25-Sep-25	15:40:31	1'000	55.9	SE
25-Sep-25	09:08:06	500	56.28	SE	25-Sep-25	15:40:32	210	55.9	SE
25-Sep-25	09:10:17	1'000	56.28	SE	25-Sep-25	15:44:42	500	55.88	SE
25-Sep-25	09:15:52	500	56.16	SE	25-Sep-25	15:46:21	570	55.98	SE
25-Sep-25	09:16:23	500	56.16	SE	25-Sep-25	15:47:13	1'000	55.98	SE
25-Sep-25	09:28:50	500	56.52	SE	25-Sep-25	15:52:26	1'000	56.02	SE
25-Sep-25	09:32:11	500	56.44	SE	25-Sep-25	15:52:26	1'000	56.02	SE
25-Sep-25	09:41:23	1'500	56.6	SE	25-Sep-25	16:02:05	1'000	56.12	SE
25-Sep-25	09:52:28	500	56.58	SE	25-Sep-25	16:03:48	1'000	56.14	SE
25-Sep-25	10:06:57	500	56.62	SE	25-Sep-25	16:07:32	513	56.16	SE
25-Sep-25	10:21:26	1'000	56.56	SE	25-Sep-25	16:09:23	1'000	56.18	SE
25-Sep-25	10:22:30	1'000	56.56	SE	25-Sep-25	16:11:47	878	56.18	SE
25-Sep-25	10:31:22	1'000	56.5	SE	25-Sep-25	16:17:33	1'000	56.18	SE
25-Sep-25	10:40:54	340	56.38	SE	25-Sep-25	16:18:47	1'000	56.18	SE
25-Sep-25	10:40:54	160	56.38	SE	26-Sep-25	09:01:56	500	56.48	SE
25-Sep-25	10:48:42	500	56.28	SE	26-Sep-25	09:01:56	500	56.48	SE
25-Sep-25	10:49:13	500	56.26	SE	26-Sep-25	09:01:56	500	56.48	SE
25-Sep-25	10:49:55	361	56.24	SE	26-Sep-25	09:01:56	500	56.48	SE
25-Sep-25	11:03:04	500	56.22	SE	26-Sep-25	09:01:57	500	56.44	SE
25-Sep-25	11:07:55	1'000	56.24	SE	26-Sep-25	09:01:57	500	56.44	SE
25-Sep-25	11:18:45	500	56.22	SE	26-Sep-25	09:09:45	500	56.64	SE
25-Sep-25	11:26:33	500	56.28	SE	26-Sep-25	09:16:01	500	56.52	SE
25-Sep-25	11:26:45	1'000	56.28	SE	26-Sep-25	09:20:22	500	56.52	SE
25-Sep-25	11:41:41	500	56.3	SE	26-Sep-25	09:25:36	500	56.56	SE
25-Sep-25	11:45:10	1'000	56.24	SE	26-Sep-25	09:28:38	1'500	56.6	SE
25-Sep-25	11:45:10	500	56.24	SE	26-Sep-25	09:45:18	500	56.6	SE
25-Sep-25	11:45:10	500	56.24	SE	26-Sep-25	09:51:27	500	56.68	SE
25-Sep-25	12:12:00	500	56.24	SE	26-Sep-25	10:03:48	1'000	56.6	SE
25-Sep-25	12:14:05	1'000	56.24	SE	26-Sep-25	10:16:22	1'000	56.74	SE
25-Sep-25	12:35:34	1'000	56.34	SE	26-Sep-25	10:25:38	500	56.66	SE
25-Sep-25	12:55:27	500	56.34	SE	26-Sep-25	10:25:38	500	56.66	SE
25-Sep-25	13:03:42	1'000	56.34	SE	26-Sep-25	10:32:37	500	56.6	SE
25-Sep-25	13:19:03	500	56.24	SE	26-Sep-25	10:36:02	339	56.68	SE
25-Sep-25	13:29:48	500	56.18	SE	26-Sep-25	10:46:32	443	56.58	SE
25-Sep-25	13:39:36	500	56.06	SE	26-Sep-25	10:51:36	57	56.58	SE
25-Sep-25	13:45:12	500	56.04	SE	26-Sep-25	10:53:01	500	56.64	SE
25-Sep-25	13:51:47	1'000	56.06	SE	26-Sep-25	10:58:28	500	56.62	SE
25-Sep-25	14:06:47	500	56	SE	26-Sep-25	10:58:28	500	56.62	SE
25-Sep-25	14:14:37	500	55.94	SE	26-Sep-25	11:04:45	500	56.62	SE
25-Sep-25	14:19:55	1'000	56	SE	26-Sep-25	11:16:16	40	56.66	SE
25-Sep-25	14:33:00	1'000	56.02	SE	26-Sep-25	11:16:52	500	56.66	SE
25-Sep-25	14:33:00	1'000	56.02	SE	26-Sep-25	11:17:51	500	56.66	SE
25-Sep-25	14:49:03	500	55.98	SE	26-Sep-25	11:22:56	1'500	56.6	SE
25-Sep-25	14:55:25	1'023	55.94	SE	26-Sep-25	11:40:41	208	56.68	SE
25-Sep-25	14:57:05	1'000	55.94	SE	26-Sep-25	11:50:45	500	56.66	SE
25-Sep-25	15:19:44	677	55.94	SE	26-Sep-25	11:51:27	500	56.64	SE
25-Sep-25	15:23:27	786	56	SE	26-Sep-25	12:03:08	500	56.68	SE

26 -Sep -25	12:11:23	500	56.7	SE	26 -Sep -25	16:45:34	500	56.66	SE
26 -Sep -25	12:17:44	500	56.7	SE	26 -Sep -25	16:45:34	500	56.66	SE
26 -Sep -25	12:17:56	500	56.68	SE	26 -Sep -25	16:45:34	500	56.66	SE
26 -Sep -25	12:35:09	500	56.72	SE	26 -Sep -25	16:52:16	560	56.66	SE
26 -Sep -25	12:45:35	500	56.62	SE	29 -Sep -25	09:02:20	500	57.3	SE
26 -Sep -25	12:47:07	105	56.58	SE	29 -Sep -25	09:02:20	318	57.3	SE
26 -Sep -25	12:47:08	500	56.58	SE	29 -Sep -25	09:02:20	182	57.3	SE
26 -Sep -25	13:05:49	300	56.68	SE	29 -Sep -25	09:02:20	500	57.3	SE
26 -Sep -25	13:11:08	500	56.74	SE	29 -Sep -25	09:02:21	500	57.3	SE
26 -Sep -25	13:20:17	500	56.78	SE	29 -Sep -25	09:02:22	500	57.26	SE
26 -Sep -25	13:29:39	225	56.86	SE	29 -Sep -25	09:11:15	536	57.2	SE
26 -Sep -25	13:30:05	5	56.86	SE	29 -Sep -25	09:15:22	711	57.1	SE
26 -Sep -25	13:35:34	500	56.9	SE	29 -Sep -25	09:19:48	1'000	57.02	SE
26 -Sep -25	13:37:37	500	56.86	SE	29 -Sep -25	09:23:44	500	57.06	SE
26 -Sep -25	13:51:13	500	57.04	SE	29 -Sep -25	09:29:00	500	57.04	SE
26 -Sep -25	13:58:40	500	57.12	SE	29 -Sep -25	09:31:59	1'000	56.96	SE
26 -Sep -25	14:06:22	500	57.2	SE	29 -Sep -25	09:48:12	635	57.04	SE
26 -Sep -25	14:07:22	500	57.2	SE	29 -Sep -25	09:54:50	1'000	57.06	SE
26 -Sep -25	14:09:56	1'000	57.2	SE	29 -Sep -25	10:06:35	1'000	57	SE
26 -Sep -25	14:14:23	329	57.16	SE	29 -Sep -25	10:20:38	1'000	57.02	SE
26 -Sep -25	14:14:23	171	57.16	SE	29 -Sep -25	10:20:38	1'000	57	SE
26 -Sep -25	14:34:15	1'500	57.28	SE	29 -Sep -25	10:20:39	1'000	57.02	SE
26 -Sep -25	14:52:23	1'000	57.34	SE	29 -Sep -25	10:39:56	1'000	57.2	SE
26 -Sep -25	15:03:16	209	57.22	SE	29 -Sep -25	10:39:56	2'000	57.2	SE
26 -Sep -25	15:04:59	226	57.2	SE	29 -Sep -25	11:14:42	500	57.32	SE
26 -Sep -25	15:09:03	1'000	57.14	SE	29 -Sep -25	11:19:21	500	57.4	SE
26 -Sep -25	15:09:03	1'000	57.14	SE	29 -Sep -25	11:19:21	500	57.4	SE
26 -Sep -25	15:18:45	500	56.92	SE	29 -Sep -25	11:29:38	1'000	57.42	SE
26 -Sep -25	15:20:15	463	56.92	SE	29 -Sep -25	11:29:38	1'000	57.42	SE
26 -Sep -25	15:20:15	37	56.92	SE	29 -Sep -25	11:49:58	1'500	57.24	SE
26 -Sep -25	15:37:46	6	56.92	SE	29 -Sep -25	12:02:46	500	57.16	SE
26 -Sep -25	15:37:46	811	56.92	SE	29 -Sep -25	12:16:03	500	57.26	SE
26 -Sep -25	15:37:46	500	56.92	SE	29 -Sep -25	12:23:50	500	57.28	SE
26 -Sep -25	15:38:14	1'000	56.92	SE	29 -Sep -25	12:30:24	500	57.24	SE
26 -Sep -25	15:38:14	311	56.92	SE	29 -Sep -25	12:40:55	500	57.14	SE
26 -Sep -25	15:38:14	689	56.92	SE	29 -Sep -25	12:47:42	500	57.18	SE
26 -Sep -25	15:38:14	494	56.92	SE	29 -Sep -25	12:56:16	500	57.18	SE
26 -Sep -25	15:38:15	1'500	56.92	SE	29 -Sep -25	13:06:10	325	57.14	SE
26 -Sep -25	15:44:46	500	56.88	SE	29 -Sep -25	13:09:26	282	57.1	SE
26 -Sep -25	15:47:01	1'000	56.88	SE	29 -Sep -25	13:12:40	158	57.12	SE
26 -Sep -25	15:50:09	500	56.92	SE	29 -Sep -25	13:15:08	342	57.12	SE
26 -Sep -25	15:50:57	500	56.92	SE	29 -Sep -25	13:20:49	500	57.16	SE
26 -Sep -25	15:57:54	500	56.92	SE	29 -Sep -25	13:20:49	500	57.16	SE
26 -Sep -25	16:02:17	816	56.92	SE	29 -Sep -25	13:20:49	500	57.16	SE
26 -Sep -25	16:02:17	500	56.92	SE	29 -Sep -25	13:20:49	500	57.16	SE
26 -Sep -25	16:05:19	490	56.86	SE	29 -Sep -25	13:52:45	1'000	57.2	SE
26 -Sep -25	16:05:19	10	56.86	SE	29 -Sep -25	14:10:00	500	57.24	SE
26 -Sep -25	16:07:34	795	56.76	SE	29 -Sep -25	14:12:01	162	57.24	SE
26 -Sep -25	16:10:00	500	56.76	SE	29 -Sep -25	14:13:46	500	57.24	SE
26 -Sep -25	16:13:09	500	56.76	SE	29 -Sep -25	14:20:02	478	57.18	SE
26 -Sep -25	16:13:42	500	56.7	SE	29 -Sep -25	14:25:03	1'000	57.2	SE
26 -Sep -25	16:17:10	500	56.74	SE	29 -Sep -25	14:34:10	500	57.22	SE
26 -Sep -25	16:19:57	361	56.76	SE	29 -Sep -25	14:38:39	1'000	57.2	SE
26 -Sep -25	16:23:22	1'000	56.78	SE	29 -Sep -25	14:48:00	1'000	57.2	SE
26 -Sep -25	16:23:22	1'000	56.78	SE	29 -Sep -25	14:56:11	1'000	57.1	SE
26 -Sep -25	16:31:56	500	56.64	SE	29 -Sep -25	15:09:10	1'000	57.12	SE
26 -Sep -25	16:34:05	1'000	56.62	SE	29 -Sep -25	15:17:46	917	57.18	SE
26 -Sep -25	16:34:05	500	56.62	SE	29 -Sep -25	15:25:57	1'000	57.24	SE
26 -Sep -25	16:41:46	500	56.66	SE	29 -Sep -25	16:16:23	794	57.18	SE

29 -Sep -25	16:16:23	1'000	57.18	SE	01 -Oct -25	10:43:36	1'000	57.06	SE
29 -Sep -25	16:16:24	528	57.18	SE	01 -Oct -25	11:08:16	1'000	57.14	SE
29 -Sep -25	16:16:24	1'000	57.18	SE	01 -Oct -25	11:14:41	2'000	57.2	SE
29 -Sep -25	16:16:25	863	57.18	SE	01 -Oct -25	11:22:40	1'000	57.2	SE
29 -Sep -25	16:16:25	1'000	57.18	SE	01 -Oct -25	11:53:28	1'000	57.14	SE
29 -Sep -25	16:16:27	1'000	57.18	SE	01 -Oct -25	11:53:29	1'000	57.14	SE
29 -Sep -25	16:16:27	1'000	57.18	SE	01 -Oct -25	12:12:52	1'000	57.02	SE
29 -Sep -25	16:16:28	214	57.18	SE	01 -Oct -25	12:31:17	1'000	57.06	SE
29 -Sep -25	16:16:28	1'786	57.18	SE	01 -Oct -25	12:49:04	1'000	57.1	SE
29 -Sep -25	16:16:28	1'000	57.18	SE	01 -Oct -25	13:01:05	1'000	57.1	SE
29 -Sep -25	16:16:28	1'000	57.18	SE	01 -Oct -25	13:23:47	1'000	57.02	SE
29 -Sep -25	16:16:28	1'000	57.18	SE	01 -Oct -25	13:23:47	1'000	57.02	SE
29 -Sep -25	16:16:28	1'000	57.18	SE	01 -Oct -25	13:28:13	1'000	57.02	SE
29 -Sep -25	16:16:30	1'000	57.18	SE	01 -Oct -25	14:08:03	1'000	57.1	SE
30 -Sep -25	09:04:18	1'000	57	SE	01 -Oct -25	14:15:10	1'000	57.1	SE
30 -Sep -25	09:04:18	500	57	SE	01 -Oct -25	14:15:10	1'000	57.1	SE
30 -Sep -25	09:08:45	2'000	57.08	SE	01 -Oct -25	14:37:48	1'000	57.18	SE
30 -Sep -25	09:25:15	1'000	57.06	SE	01 -Oct -25	14:38:21	1'000	57.18	SE
30 -Sep -25	09:32:40	2'000	57.12	SE	01 -Oct -25	14:41:02	1'000	57.18	SE
30 -Sep -25	09:46:56	2'000	57.18	SE	01 -Oct -25	15:03:01	1'000	57.2	SE
30 -Sep -25	10:10:35	1'000	57.24	SE	01 -Oct -25	15:05:09	1'000	57.2	SE
30 -Sep -25	10:15:25	203	57.14	SE	01 -Oct -25	15:26:06	1'000	57.32	SE
30 -Sep -25	10:27:04	2'000	57.2	SE	01 -Oct -25	15:30:06	1'000	57.28	SE
30 -Sep -25	10:40:40	2'000	57.22	SE	01 -Oct -25	15:38:03	1'000	57.2	SE
30 -Sep -25	10:43:51	1'000	57.24	SE
30 -Sep -25	11:11:39	1'810	57.16	SE
30 -Sep -25	11:36:52	1'000	57.18	SE
30 -Sep -25	11:40:42	1'000	57.2	SE
30 -Sep -25	12:00:45	2'000	57.2	SE
30 -Sep -25	12:02:11	1'000	57.2	SE
30 -Sep -25	12:34:07	1'000	57.28	SE
30 -Sep -25	12:56:01	1'000	57.24	SE
30 -Sep -25	13:07:14	2'000	57.24	SE
30 -Sep -25	13:45:41	2'000	57.26	SE
30 -Sep -25	14:05:06	1'000	57.24	SE
30 -Sep -25	14:14:59	1'000	57.14	SE
30 -Sep -25	14:21:50	1'000	57.02	SE
30 -Sep -25	14:29:57	1'000	56.88	SE
30 -Sep -25	14:39:04	1'000	56.7	SE
30 -Sep -25	14:54:24	1'000	56.96	SE
30 -Sep -25	15:08:12	1'000	57.06	SE
30 -Sep -25	15:12:06	2'000	56.94	SE
30 -Sep -25	15:23:43	1'000	57	SE
30 -Sep -25	15:33:35	2'000	57.06	SE
30 -Sep -25	15:50:54	2'000	57.04	SE
30 -Sep -25	16:00:00	1'000	57.06	SE
30 -Sep -25	16:06:50	2'000	57.02	SE
30 -Sep -25	16:08:53	1'000	57.04	SE
30 -Sep -25	16:19:50	2'000	57.08	SE
30 -Sep -25	16:20:18	1'000	57.06	SE
30 -Sep -25	16:20:18	1'000	57.08	SE
01 -Oct -25	09:08:30	2'000	56.5	SE
01 -Oct -25	09:12:13	1'000	56.64	SE
01 -Oct -25	09:25:15	2'000	56.66	SE
01 -Oct -25	09:31:50	2'000	56.66	SE
01 -Oct -25	10:06:02	2'000	56.8	SE
01 -Oct -25	10:21:10	1'000	56.82	SE
01 -Oct -25	10:37:30	1'000	56.96	SE
01 -Oct -25	10:43:36	1'000	57.06	SE