ABB Ltd

Transaction in Own Shares • Dec 11, 2025

ZURICH, SWITZERLAND, DECEMBER 11, 2025

ABB share buybacks

December 4, 2025 – December 10, 2025

During the period December 4, 2025, to December 10, 2025, ABB repurchased a total of 248'191 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-Dec-25	33'189	57.9680	1'923'899.75
05-Dec-25	62'000	58.7725	3'643'897.98
08-Dec-25	36'002	59.0440	2'125'700.29
09-Dec-25	61'000	58.9285	3'594'638.68
10-Dec-25	56'000	58.8304	3'294'499.99

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 December 10, 2025, 19'689'592 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	4-Dec-25	14:48:59	1'000	58	SE
4-Dec-25	09:04:09	316	57.7	SE	4-Dec-25	15:00:22	1'000	58.02	SE
4-Dec-25	09:04:09	184	57.7	SE	4-Dec-25	15:14:42	1'000	58	SE
4-Dec-25	09:04:09	500	57.7	SE	4-Dec-25	15:25:28	1'000	57.96	SE
4-Dec-25	09:04:09	500	57.7	SE	4-Dec-25	15:25:28	1'000	57.96	SE
4-Dec-25	09:04:09	500	57.7	SE	5-Dec-25	09:05:09	1'000	58.38	SE
4-Dec-25	09:04:57	500	57.62	SE	5-Dec-25	09:05:14	100	58.38	SE
4-Dec-25	09:06:01	500	57.86	SE	5-Dec-25	09:06:04	1'000	58.34	SE
4-Dec-25	09:09:01	500	57.84	SE	5-Dec-25	09:09:45	500	58.36	SE
4-Dec-25	09:11:01	500	58.04	SE	5-Dec-25	09:14:58	1'000	58.52	SE
4-Dec-25	09:16:53	500	58.06	SE	5-Dec-25	09:15:54	500	58.54	SE
4-Dec-25	09:24:43	500	58.18	SE	5-Dec-25	09:23:45	500	58.66	SE
4-Dec-25	09:25:38	500	58.22	SE	5-Dec-25	09:34:17	500	58.82	SE
4-Dec-25	09:25:38	500	58.22	SE	5-Dec-25	09:36:11	1'000	58.82	SE
4-Dec-25	09:25:38	500	58.22	SE	5-Dec-25	09:46:50	1'000	58.84	SE
4-Dec-25	09:25:38	500	58.22	SE	5-Dec-25	09:59:45	1'000	58.82	SE
4-Dec-25	09:53:19	500	58.06	SE	5-Dec-25	10:07:57	1'000	58.88	SE
4-Dec-25	10:03:06	500	57.98	SE	5-Dec-25	10:12:26	500	58.82	SE
4-Dec-25	10:07:24	500	58	SE	5-Dec-25	10:18:10	1'000	58.84	SE
4-Dec-25	10:12:24	167	57.96	SE	5-Dec-25	10:28:15	1'000	58.86	SE
4-Dec-25	10:13:51	333	57.96	SE	5-Dec-25	10:36:42	1'000	58.88	SE
4-Dec-25	10:18:13	500	57.96	SE	5-Dec-25	10:47:01	1'000	58.92	SE
4-Dec-25	10:21:07	1'000	58	SE	5-Dec-25	10:55:36	1'000	58.92	SE
4-Dec-25	10:27:07	500	58.08	SE	5-Dec-25	11:05:57	1'000	58.82	SE
4-Dec-25	10:37:55	500	57.84	SE	5-Dec-25	11:15:34	1'000	58.82	SE
4-Dec-25	10:48:50	500	57.9	SE	5-Dec-25	11:28:04	1'000	58.78	SE
4-Dec-25	10:51:53	500	57.9	SE	5-Dec-25	11:36:48	1'000	58.78	SE
4-Dec-25	11:01:34	500	57.96	SE	5-Dec-25	11:48:36	1'000	58.82	SE
4-Dec-25	11:01:50	500	57.94	SE	5-Dec-25	11:56:37	1'000	58.82	SE
4-Dec-25	11:09:44	1'500	57.92	SE	5-Dec-25	12:02:52	1'000	58.84	SE
4-Dec-25	11:34:38	500	57.92	SE	5-Dec-25	12:22:06	1'000	58.78	SE
4-Dec-25	11:40:54	500	57.84	SE	5-Dec-25	12:38:32	1'000	58.8	SE
4-Dec-25	11:48:16	141	57.92	SE	5-Dec-25	12:51:35	1'000	58.76	SE
4-Dec-25	11:49:56	1'000	57.92	SE	5-Dec-25	13:12:43	1'000	58.8	SE
4-Dec-25	12:01:06	500	57.88	SE	5-Dec-25	13:24:58	1'000	58.76	SE
4-Dec-25	12:10:30	500	57.92	SE	5-Dec-25	13:24:58	1'000	58.76	SE
4-Dec-25	12:15:08	500	57.92	SE	5-Dec-25	13:50:04	1'000	58.78	SE
4-Dec-25	12:23:10	500	57.9	SE	5-Dec-25	14:03:34	1'000	58.82	SE
4-Dec-25	12:33:03	48	57.98	SE	5-Dec-25	14:03:34	1'000	58.82	SE
4-Dec-25	12:33:19	4	57.98	SE	5-Dec-25	14:29:48	1'000	58.88	SE
4-Dec-25	12:35:20	496	57.98	SE	5-Dec-25	14:35:07	1'000	58.82	SE
4-Dec-25	12:42:16	1'000	57.96	SE	5-Dec-25	14:42:27	1'000	58.82	SE
4-Dec-25	13:02:20	1'000	58	SE	5-Dec-25	14:52:03	1'000	58.74	SE
4-Dec-25	13:20:19	1'000	58	SE	5-Dec-25	15:02:13	500	58.82	SE
4-Dec-25	13:37:29	1'000	58	SE	5-Dec-25	15:05:42	500	58.84	SE
4-Dec-25	13:46:08	1'000	58.02	SE	5-Dec-25	15:11:50	500	58.88	SE
4-Dec-25	14:11:11	1'000	58	SE	5-Dec-25	15:11:50	150	58.88	SE
4-Dec-25	14:21:47	1'000	58.02	SE	5-Dec-25	15:11:50	350	58.88	SE
4-Dec-25	14:23:32	1'000	58.08	SE	5-Dec-25	15:11:50	500	58.88	SE
4-Dec-25	14:45:38	500	58.04	SE	5-Dec-25	15:11:50	500	58.88	SE

ABB SHARE BUYBACKS 2/4

5-Dec-25	15:30:00	500	58.92	SE	8-Dec-25	09:56:04	1'000	58.82	SE
5-Dec-25	15:31:21	500	58.86	SE	8-Dec-25	10:15:58	1'000	58.78	SE
5-Dec-25	15:39:43	3	58.78	SE	8-Dec-25	10:31:29	1'000	58.84	SE
5-Dec-25	15:39:43	497	58.78	SE	8-Dec-25	10:37:17	1'000	58.88	SE
5-Dec-25	15:39:43	1'000	58.78	SE	8-Dec-25	10:43:10	500	58.86	SE
5-Dec-25	15:39:50	500	58.78	SE	8-Dec-25	10:49:57	500	58.9	SE
5-Dec-25	15:39:59	500	58.78	SE	8-Dec-25	10:55:32	500	58.94	SE
5-Dec-25	15:40:35	1'000	58.78	SE	8-Dec-25	11:02:05	400	58.98	SE
5-Dec-25	15:40:35	500	58.78	SE	8-Dec-25	11:02:05	100	58.98	SE
5-Dec-25	15:59:00	500	58.78	SE	8-Dec-25	11:06:32	500	58.96	SE
5-Dec-25	16:01:14	500	58.78	SE	8-Dec-25	11:13:14	500	59.08	SE
5-Dec-25	16:01:15	325	58.78	SE	8-Dec-25	11:17:03	500	59.1	SE
5-Dec-25	16:01:15	175	58.78	SE	8-Dec-25	11:18:24	1'000	59.14	SE
5-Dec-25	16:01:15	500	58.78	SE	8-Dec-25	11:31:53	500	59.16	SE
5-Dec-25	16:01:15	1'000	58.78	SE	8-Dec-25	11:39:28	500	59.14	SE
5-Dec-25	16:01:16	500	58.78	SE	8-Dec-25	11:42:06	500	59.12	SE
5-Dec-25	16:01:16	1'000	58.78	SE	8-Dec-25	11:45:44	500	59.14	SE
5-Dec-25	16:02:20	500	58.76	SE	8-Dec-25	11:57:34	1'000	59.14	SE
5-Dec-25	16:04:15	1'500	58.78	SE	8-Dec-25	12:07:28	500	59.1	SE
5-Dec-25	16:10:07	130	58.78	SE	8-Dec-25	12:14:14	500	59.14	SE
5-Dec-25	16:10:16	370	58.78	SE	8-Dec-25	12:22:01	500	59.12	SE
5-Dec-25	16:12:30	500	58.78	SE	8-Dec-25	12:22:55	500	59.1	SE
5-Dec-25	16:13:10	500	58.78	SE	8-Dec-25	12:38:25	500	59.2	SE
5-Dec-25	16:17:09	500	58.78	SE	8-Dec-25	12:40:48	1'000	59.2	SE
5-Dec-25	16:35:32	201	58.78	SE	8-Dec-25	13:06:23	1'000	59.18	SE
5-Dec-25	16:35:32	299	58.78	SE	8-Dec-25	13:20:57	1'000	59.14	SE
5-Dec-25	16:35:32	500	58.78	SE	8-Dec-25	13:36:26	1'000	59.18	SE
5-Dec-25	16:35:32	500	58.78	SE	8-Dec-25	13:58:42	1'000	59.24	SE
5-Dec-25	16:35:32	377	58.78	SE	8-Dec-25	14:09:04	2'000	59.26	SE
5-Dec-25	16:35:32	123	58.78	SE	8-Dec-25	14:30:20	1'000	59.32	SE
5-Dec-25	16:35:32	1'000	58.78	SE	8-Dec-25	14:42:06	1'000	59.28	SE
5-Dec-25	16:35:32	500	58.78	SE	8-Dec-25	14:46:34	2'000	59.28	SE
5-Dec-25	16:35:32	500	58.78	SE	8-Dec-25	15:06:42	2'000	59.26	SE
5-Dec-25	16:35:32	1'000	58.78	SE	8-Dec-25	15:26:55	1'000	59.2	SE
5-Dec-25	16:35:33	1'000	58.78	SE	8-Dec-25	15:26:55	500	59.2	SE
5-Dec-25	16:38:46	500	58.78	SE	9-Dec-25	09:02:53	500	59.46	SE
5-Dec-25	16:38:57	500	58.78	SE	9-Dec-25	09:02:53	500	59.46	SE
5-Dec-25	16:41:12	208	58.76	SE	9-Dec-25	09:02:58	500	59.46	SE
5-Dec-25	16:41:12	292	58.76	SE	9-Dec-25	09:05:07	500	59.46	SE
5-Dec-25	16:43:35	500	58.7	SE	9-Dec-25	09:05:25	500	59.56	SE
5-Dec-25	16:43:35	1'000	58.7	SE	9-Dec-25	09:06:12	500	59.56	SE
5-Dec-25	16:49:13	500	58.58	SE	9-Dec-25	09:09:01	41	59.38	SE
5-Dec-25	16:49:13	500	58.58	SE	9-Dec-25	09:11:31	500	59.5	SE
5-Dec-25	16:49:14	500	58.58	SE	9-Dec-25	09:20:19	335	59.52	SE
5-Dec-25	16:54:49	400	58.6	SE	9-Dec-25	09:20:19	165	59.52	SE
8-Dec-25	09:06:08	1'000	58.68	SE	9-Dec-25	09:24:52	500	59.56	SE
8-Dec-25	09:06:08	1'000	58.68	SE	9-Dec-25	09:25:00	500	59.54	SE
8-Dec-25	09:06:31	500	58.68	SE	9-Dec-25	09:31:15	500	59.44	SE
8-Dec-25	09:11:25	2	58.58	SE	9-Dec-25	09:35:49	500	59.46	SE
8-Dec-25	09:12:03	2	58.58	SE	9-Dec-25	09:42:40	1'000	59.38	SE
8-Dec-25	09:12:10	110	58.58	SE	9-Dec-25	09:42:40	1'000	59.38	SE
8-Dec-25	09:12:32	500	58.6	SE	9-Dec-25	10:03:52	1'000	59.46	SE
8-Dec-25	09:19:31	1'000	58.7	SE	9-Dec-25	10:11:19	1'000	59.46	SE
8-Dec-25	09:28:48	500	58.76	SE	9-Dec-25	10:20:31	1'000	59.38	SE
8-Dec-25	09:30:01	500	58.8	SE	9-Dec-25	10:20:31	1'000	59.38	SE
8-Dec-25	09:34:51	500	58.82	SE	9-Dec-25	10:32:42	2'000	59.34	SE
8-Dec-25	09:40:43	388	58.82	SE	9-Dec-25	11:01:44	1'000	59.34	SE
8-Dec-25	09:49:20	1'000	58.84	SE	9-Dec-25	11:12:35	1'000	59.34	SE
8-Dec-25	09:56:04	500	58.82	SE	9-Dec-25	11:24:22	1'000	59.34	SE

ABB SHARE BUYBACKS 3/4

9-Dec-25	11:33:19	1'000	59.32	SE	10-Dec-25	12:35:25	1'000	58.82	SE
9-Dec-25	11:33:19	1'000	59.32	SE	10-Dec-25	12:53:37	1'000	58.9	SE
9-Dec-25	11:55:18	2'000	59.18	SE	10-Dec-25	13:07:51	1'000	58.92	SE
9-Dec-25	12:18:58	1'000	58.88	SE	10-Dec-25	13:25:33	1'000	58.84	SE
9-Dec-25	12:24:16	2'000	58.76	SE	10-Dec-25	13:25:33	1'000	58.84	SE
9-Dec-25	12:42:54	2'000	58.74	SE	10-Dec-25	13:59:17	1'000	58.82	SE
9-Dec-25	13:17:44	2'000	58.72	SE	10-Dec-25	14:15:24	1'000	58.8	SE
9-Dec-25	13:50:52	2'000	58.56	SE	10-Dec-25	14:15:24	1'000	58.78	SE
9-Dec-25	14:32:06	1'000	58.7	SE	10-Dec-25	14:32:31	1'000	58.82	SE
9-Dec-25	14:38:07	1'000	58.64	SE	10-Dec-25	14:43:33	1'000	58.88	SE
9-Dec-25	14:48:25	1'000	58.68	SE	10-Dec-25	14:46:17	1'000	58.84	SE
9-Dec-25	14:57:37	1'000	58.7	SE	10-Dec-25	15:00:53	1'000	58.84	SE
9-Dec-25	15:09:01	1'000	58.62	SE	10-Dec-25	15:15:32	1'000	58.84	SE
9-Dec-25	15:19:24	1'000	58.56	SE	10-Dec-25	15:28:00	1'000	58.88	SE
9-Dec-25	15:26:42	1'000	58.64	SE	10-Dec-25	15:33:59	1'000	58.86	SE
9-Dec-25	15:29:58	1'000	58.64	SE	10-Dec-25	15:34:07	1'000	58.86	SE
9-Dec-25	15:35:27	1'000	58.62	SE	10-Dec-25	16:02:34	1'000	58.86	SE
9-Dec-25	15:38:15	1'000	58.64	SE	10-Dec-25	16:02:34	1'000	58.86	SE
9-Dec-25	15:38:15	1'000	58.64	SE	10-Dec-25	16:03:39	1'000	58.86	SE
9-Dec-25	15:45:24	1'000	58.7	SE	10-Dec-25	16:03:40	1'000	58.86	SE
9-Dec-25	15:46:02	1'000	58.7	SE	10-Dec-25	16:03:41	1'000	58.86	SE
9-Dec-25	15:51:15	1'000	58.76	SE	10-Dec-25	16:03:48	1'000	58.86	SE
9-Dec-25	15:54:21	1'000	58.68	SE	10-Dec-25	16:03:49	1'000	58.86	SE
9-Dec-25	15:59:04	1'000	58.76	SE	10-Dec-25	16:07:29	1'000	58.84	SE
9-Dec-25	16:02:01	1'000	58.74	SE	10-Dec-25	16:09:21	1'000	58.82	SE
9-Dec-25	16:03:44	1'000	58.74	SE	10-Dec-25	16:09:21	1'000	58.82	SE
9-Dec-25	16:09:05	1'000	58.7	SE	10-Dec-25	16:17:54	1'000	58.72	SE
9-Dec-25	16:11:43	1'000	58.68	SE	10-Dec-25	16:20:58	1'000	58.58	SE
9-Dec-25	16:15:33	1'000	58.64	SE	10-Dec-25	16:25:31	1'000	58.6	SE
9-Dec-25	16:15:33	1'000	58.64	SE	10-Dec-25	16:32:31	1'000	58.68	SE
9-Dec-25	16:21:45	1'000	58.56	SE	10-Dec-25	16:32:31	1'000	58.7	SE
9-Dec-25	16:28:21	1'000	58.6	SE	10-Dec-25	16:32:32	1'000	58.68	SE
9-Dec-25	16:31:44	1'000	58.64	SE	10-Dec-25	16:45:10	1'000	58.6	SE
9-Dec-25	16:35:40	1'000	58.74	SE	10-Dec-25	16:46:47	1'000	58.58	SE
9-Dec-25	16:37:10	1'000	58.76	SE	10-Dec-25	16:54:26	1'000	58.66	SE
9-Dec-25	16:37:11	1'000	58.76	SE
9-Dec-25	16:44:38	1'000	58.78	SE
9-Dec-25	16:49:02	1'000	58.7	SE
9-Dec-25	16:53:18	959	58.68	SE
10-Dec-25	09:03:28	1'000	58.8	SE
10-Dec-25	09:04:46	1'000	58.74	SE
10-Dec-25	09:10:38	2'000	58.92	SE
10-Dec-25	09:23:00	500	59.16	SE
10-Dec-25	09:31:00	1'000	59.18	SE
10-Dec-25	09:41:33	1'000	59.06	SE
10-Dec-25	09:50:00	1'000	59.02	SE
10-Dec-25	09:54:41	1'500	59	SE
10-Dec-25	10:15:14	1'000	58.84	SE
10-Dec-25	10:18:34	1'000	58.84	SE
10-Dec-25	10:28:00	1'000	58.82	SE
10-Dec-25	10:28:00	1'000	58.82	SE
10-Dec-25	10:58:53	1'000	58.84	SE
10-Dec-25	11:00:07	1'000	58.82	SE
10-Dec-25	11:00:07	1'000	58.82	SE
10-Dec-25	11:29:40	1'000	58.82	SE
10-Dec-25	11:42:15	1'000	58.88	SE
10-Dec-25	11:42:15	1'000	58.88	SE

ABB SHARE BUYBACKS 4/4

10-Dec-25 12:05:55 1'000 58.78 SE 10-Dec-25 12:05:55 1'000 58.78 SE