ABB Ltd

Transaction in Own Shares • Dec 4, 2025

ZURICH, SWITZERLAND, DECEMBER 4, 2025

ABB share buybacks

November 27, 2025 – December 3, 2025

During the period November 27, 2025, to December 3, 2025, ABB repurchased a total of 297,661 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)
27-Nov-25	64'248	57.1769	3'673'501.21
28-Nov-25	78'708	57.7037	4'541'744.16
01-Dec-25	36'510	57.2675	2'090'835.11
02-Dec-25	58'695	57.6648	3'384'635.79
03-Dec-25	59'500	57.2022	3'403'530.01

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 December 3, 2025, 19,441,401 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	27-Nov-25	10:05:23	1,000	57.08	SE
27-Nov-25	15:26:50	2,000	57.32	SE	27-Nov-25	09:57:28	1,000	57.00	SE
27-Nov-25	15:14:52	1,000	57.24	SE	27-Nov-25	09:47:35	1,000	57.10	SE
27-Nov-25	15:14:52	1,000	57.24	SE	27-Nov-25	09:45:40	1,000	57.14	SE
27-Nov-25	15:09:20	1,000	57.24	SE	27-Nov-25	09:39:45	1,000	57.10	SE
27-Nov-25	15:00:05	1,000	57.24	SE	27-Nov-25	09:37:54	1,000	57.06	SE
27-Nov-25	15:00:05	1,000	57.24	SE	27-Nov-25	09:30:40	1,000	57.14	SE
27-Nov-25	14:52:47	1,000	57.26	SE	27-Nov-25	09:25:04	1,178	57.08	SE
27-Nov-25	14:45:40	2,000	57.28	SE	27-Nov-25	09:17:02	168	56.90	SE
27-Nov-25	14:36:46	1,000	57.30	SE	27-Nov-25	09:15:00	832	56.90	SE
27-Nov-25	14:35:37	1,000	57.32	SE	27-Nov-25	09:15:00	1,168	56.90	SE
27-Nov-25	14:26:32	1,000	57.30	SE	27-Nov-25	09:09:59	1,000	56.92	SE
27-Nov-25	14:26:32	1,000	57.28	SE	27-Nov-25	09:06:00	1,000	56.84	SE
27-Nov-25	14:19:07	650	57.22	SE	27-Nov-25	09:03:38	1,752	56.90	SE
27-Nov-25	14:11:05	1,000	57.30	SE	28-Nov-25	15:29:23	1,000	57.82	SE
27-Nov-25	14:06:08	1,000	57.22	SE	28-Nov-25	15:29:23	1,000	57.82	SE
27-Nov-25	13:57:11	1,000	57.26	SE	28-Nov-25	15:27:23	500	57.80	SE
27-Nov-25	13:51:01	1,000	57.24	SE	28-Nov-25	15:24:59	564	57.80	SE
27-Nov-25	13:34:25	1,000	57.30	SE	28-Nov-25	15:24:59	500	57.80	SE
27-Nov-25	13:34:25	1,000	57.30	SE	28-Nov-25	15:14:02	1,000	57.82	SE
27-Nov-25	13:22:32	1,000	57.20	SE	28-Nov-25	15:14:02	1,000	57.82	SE
27-Nov-25	13:13:17	1,000	57.18	SE	28-Nov-25	15:06:06	1,000	57.78	SE
27-Nov-25	13:06:54	1,000	57.18	SE	28-Nov-25	15:01:30	1,000	57.76	SE
27-Nov-25	12:44:24	1,000	57.28	SE	28-Nov-25	14:57:35	1,000	57.74	SE
27-Nov-25	12:44:24	1,000	57.28	SE	28-Nov-25	14:55:57	1,000	57.74	SE
27-Nov-25	12:36:26	1,000	57.20	SE	28-Nov-25	14:51:08	564	57.74	SE
27-Nov-25	12:27:19	1,000	57.20	SE	28-Nov-25	14:49:08	1,000	57.78	SE
27-Nov-25	12:19:59	1,000	57.24	SE	28-Nov-25	14:45:44	1,000	57.82	SE
27-Nov-25	12:14:57	500	57.24	SE	28-Nov-25	14:38:41	1,000	57.82	SE
27-Nov-25	12:04:59	1,000	57.28	SE	28-Nov-25	14:37:03	1,000	57.84	SE
27-Nov-25	11:51:32	1,000	57.30	SE	28-Nov-25	14:31:53	1,000	57.82	SE
27-Nov-25	11:51:32	1,000	57.30	SE	28-Nov-25	14:30:11	1,000	57.84	SE
27-Nov-25	11:51:32	1,000	57.28	SE	28-Nov-25	14:24:47	1,000	57.86	SE
27-Nov-25	11:38:32	1,000	57.20	SE	28-Nov-25	14:18:56	1,000	57.88	SE
27-Nov-25	11:36:47	1,000	57.20	SE	28-Nov-25	14:12:25	1,000	57.80	SE
27-Nov-25	11:32:33	1,000	57.24	SE	28-Nov-25	14:06:08	1,000	57.80	SE
27-Nov-25	11:23:50	1,000	57.22	SE	28-Nov-25	14:03:16	1,000	57.78	SE
27-Nov-25	11:13:15	1,000	57.18	SE	28-Nov-25	13:57:18	1,000	57.82	SE
27-Nov-25	11:12:34	1,000	57.18	SE	28-Nov-25	13:50:31	1,000	57.82	SE
27-Nov-25	11:04:30	1,000	57.14	SE	28-Nov-25	13:44:13	1,000	57.82	SE
27-Nov-25	10:59:04	1,000	57.16	SE	28-Nov-25	13:35:19	1,000	57.84	SE
27-Nov-25	10:56:25	1,000	57.18	SE	28-Nov-25	13:25:34	1,000	57.86	SE
27-Nov-25	10:46:07	1,000	57.14	SE	28-Nov-25	13:21:52	1,000	57.86	SE
27-Nov-25	10:43:18	1,000	57.14	SE	28-Nov-25	13:08:55	1,000	57.84	SE
27-Nov-25	10:36:52	1,000	57.18	SE	28-Nov-25	13:08:14	1,000	57.88	SE
27-Nov-25	10:29:33	1,000	57.10	SE	28-Nov-25	12:50:50	1,000	57.78	SE
27-Nov-25	10:18:41	1,000	57.10	SE	28-Nov-25	12:46:20	2,000	57.78	SE
27-Nov-25	10:18:41	1,000	57.10	SE	28-Nov-25	12:38:45	1,000	57.76	SE
27-Nov-25	10:12:14	1,000	57.10	SE	28-Nov-25	12:31:16	1,000	57.78	SE
27-Nov-25	10:07:14	1,000	57.06	SE	28-Nov-25	12:22:13	1,000	57.76	SE

ABB SHARE BUYBACKS 2/4

28-Nov-25	12:17:27	1,000	57.76	SE	01-Dec-25	12:13:37	1,000	57.06	SE
28-Nov-25	12:11:26	1,000	57.74	SE	01-Dec-25	12:00:12	500	57.02	SE
28-Nov-25	12:04:19	1,000	57.74	SE	01-Dec-25	12:00:12	500	57.02	SE
28-Nov-25	11:56:15	1,000	57.64	SE	01-Dec-25	12:00:12	500	57.02	SE
28-Nov-25	11:52:35	1,000	57.64	SE	01-Dec-25	11:48:47	500	57.08	SE
28-Nov-25	11:42:26	2,000	57.68	SE	01-Dec-25	11:35:48	1,000	57.00	SE
28-Nov-25	11:38:28	1,000	57.64	SE	01-Dec-25	11:25:05	1,000	57.18	SE
28-Nov-25	11:34:58	1,000	57.66	SE	01-Dec-25	11:06:05	1,000	57.18	SE
28-Nov-25	11:30:33	1,000	57.66	SE	01-Dec-25	11:06:05	1,000	57.18	SE
28-Nov-25	11:23:27	1,000	57.64	SE	01-Dec-25	10:53:47	1,000	57.14	SE
28-Nov-25	11:19:09	1,000	57.70	SE	01-Dec-25	10:49:53	449	57.20	SE
28-Nov-25	11:07:00	1,000	57.66	SE	01-Dec-25	10:33:54	1,000	57.38	SE
28-Nov-25	11:07:00	1,000	57.64	SE	01-Dec-25	10:30:47	61	57.38	SE
28-Nov-25	11:06:59	1,000	57.64	SE	01-Dec-25	10:19:22	500	57.50	SE
28-Nov-25	10:56:25	1,000	57.64	SE	01-Dec-25	10:19:22	500	57.50	SE
28-Nov-25	10:56:25	1,000	57.64	SE	01-Dec-25	10:19:22	1,000	57.50	SE
28-Nov-25	10:52:07	1,000	57.68	SE	01-Dec-25	10:13:43	1,000	57.46	SE
28-Nov-25	10:44:31	1,000	57.66	SE	01-Dec-25	10:02:02	1,000	57.42	SE
28-Nov-25	10:41:32	580	57.62	SE	01-Dec-25	09:42:38	1,000	57.42	SE
28-Nov-25	10:40:01	1,000	57.60	SE	01-Dec-25	09:32:42	500	57.42	SE
28-Nov-25	10:34:47	1,000	57.64	SE	01-Dec-25	09:32:42	500	57.42	SE
28-Nov-25	10:30:26	1,000	57.68	SE	01-Dec-25	09:32:41	500	57.42	SE
28-Nov-25	10:27:10	1,000	57.68	SE	01-Dec-25	09:32:41	500	57.42	SE
28-Nov-25	10:21:03	1,000	57.64	SE	01-Dec-25	09:27:45	803	57.26	SE
28-Nov-25	10:15:17	1,000	57.72	SE	01-Dec-25	09:27:45	500	57.24	SE
28-Nov-25	10:07:00	1,000	57.74	SE	01-Dec-25	09:23:29	500	57.24	SE
28-Nov-25	10:02:46	1,000	57.74	SE	01-Dec-25	09:19:11	500	57.22	SE
28-Nov-25	10:02:46	1,000	57.74	SE	01-Dec-25	09:17:39	197	57.22	SE
28-Nov-25	10:00:52	1,000	57.68	SE	01-Dec-25	09:04:46	500	57.30	SE
28-Nov-25	09:53:33	1,000	57.56	SE	01-Dec-25	09:04:45	500	57.30	SE
28-Nov-25	09:49:02	1,000	57.60	SE	01-Dec-25	09:04:45	500	57.30	SE
28-Nov-25	09:44:32	1,000	57.60	SE	01-Dec-25	09:04:45	500	57.30	SE
28-Nov-25	09:39:11	2,000	57.60	SE	02-Dec-25	16:37:06	1,000	57.64	SE
28-Nov-25	09:35:09	1,000	57.54	SE	02-Dec-25	16:36:01	1,000	57.64	SE
28-Nov-25	09:30:00	1,000	57.56	SE	02-Dec-25	16:36:00	1,000	57.64	SE
28-Nov-25	09:24:04	1,000	57.50	SE	02-Dec-25	16:35:28	444	57.62	SE
28-Nov-25	09:22:45	1,000	57.50	SE	02-Dec-25	16:35:25	500	57.62	SE
28-Nov-25	09:18:11	1,000	57.42	SE	02-Dec-25	16:35:12	500	57.62	SE
28-Nov-25	09:09:16	1,000	57.42	SE	02-Dec-25	16:34:57	500	57.64	SE
28-Nov-25	09:09:16	1,000	57.42	SE	02-Dec-25	16:34:02	1,000	57.64	SE
28-Nov-25	09:09:16	1,000	57.40	SE	02-Dec-25	16:34:00	1,000	57.64	SE
28-Nov-25	09:06:26	1,000	57.32	SE	02-Dec-25	16:34:00	1,000	57.64	SE
01-Dec-25	15:24:13	1,000	57.34	SE	02-Dec-25	16:34:00	500	57.64	SE
01-Dec-25	15:14:09	1,500	57.42	SE	02-Dec-25	16:34:00	500	57.64	SE
01-Dec-25	15:01:13	500	57.38	SE	02-Dec-25	16:12:09	500	57.64	SE
01-Dec-25	14:52:41	1,000	57.32	SE	02-Dec-25	16:11:11	1,000	57.64	SE
01-Dec-25	14:52:33	1,000	57.32	SE	02-Dec-25	16:11:10	1,000	57.64	SE
01-Dec-25	14:37:33	1,000	57.28	SE	02-Dec-25	16:11:10	1,000	57.64	SE
01-Dec-25	14:27:28	1,000	57.28	SE	02-Dec-25	15:50:12	1,000	57.64	SE
01-Dec-25	14:18:45	1,000	57.24	SE	02-Dec-25	15:49:01	1,000	57.64	SE
01-Dec-25	14:02:30	1,000	57.24	SE	02-Dec-25	15:49:00	1,000	57.64	SE
01-Dec-25	13:46:24	500	57.26	SE	02-Dec-25	15:46:27	1,000	57.64	SE
01-Dec-25	13:41:56	1,000	57.28	SE	02-Dec-25	15:46:07	1,000	57.64	SE
01-Dec-25	13:19:01	500	57.30	SE	02-Dec-25	15:46:06	1,000	57.64	SE
01-Dec-25	13:19:01	1,000	57.28	SE	02-Dec-25	15:46:06	1,000	57.64	SE
01-Dec-25	13:05:12	1,000	57.20	SE	02-Dec-25	15:31:00	1,000	57.60	SE
01-Dec-25	12:30:00	500	57.24	SE	02-Dec-25	15:31:00	1,000	57.62	SE
01-Dec-25	12:21:57	1,000	57.06	SE	02-Dec-25	15:19:12	1,000	57.52	SE
01-Dec-25	12:21:57	1,000	57.06	SE	02-Dec-25	15:08:11	1,000	57.46	SE

ABB SHARE BUYBACKS 3/4

02-Dec-25	14:54:01	1,000	57.52	SE	03-Dec-25	16:03:36	1,000	56.82	SE
02-Dec-25	14:54:01	1,000	57.52	SE	03-Dec-25	16:00:07	1,000	56.74	SE
02-Dec-25	14:50:45	500	57.52	SE	03-Dec-25	15:54:20	1,000	56.68	SE
02-Dec-25	14:47:56	251	57.50	SE	03-Dec-25	15:50:17	1,000	56.54	SE
02-Dec-25	14:43:41	500	57.54	SE	03-Dec-25	15:44:24	1,000	56.66	SE
02-Dec-25	14:13:01	1,000	57.52	SE	03-Dec-25	15:37:58	1,000	56.78	SE
02-Dec-25	14:04:46	500	57.54	SE	03-Dec-25	15:37:58	1,000	56.78	SE
02-Dec-25	14:04:46	500	57.54	SE	03-Dec-25	15:34:23	1,000	56.84	SE
02-Dec-25	14:04:46	1,000	57.54	SE	03-Dec-25	15:30:32	1,000	56.92	SE
02-Dec-25	14:04:46	1,000	57.52	SE	03-Dec-25	15:30:32	1,000	56.92	SE
02-Dec-25	13:44:05	1,000	57.56	SE	03-Dec-25	15:24:49	1,000	56.82	SE
02-Dec-25	13:18:31	500	57.74	SE	03-Dec-25	15:01:30	1,000	57.22	SE
02-Dec-25	13:18:31	500	57.74	SE	03-Dec-25	15:01:30	1,000	57.22	SE
02-Dec-25	13:18:31	1,000	57.74	SE	03-Dec-25	15:00:49	1,000	57.26	SE
02-Dec-25	12:40:14	1,000	57.84	SE	03-Dec-25	14:59:26	1,000	57.28	SE
02-Dec-25	12:40:14	1,000	57.84	SE	03-Dec-25	14:51:59	500	57.30	SE
02-Dec-25	12:25:33	1,000	57.88	SE	03-Dec-25	14:47:15	500	57.32	SE
02-Dec-25	12:06:43	1,000	57.88	SE	03-Dec-25	14:43:32	486	57.32	SE
02-Dec-25	12:06:42	1,000	57.88	SE	03-Dec-25	14:43:31	1	57.32	SE
02-Dec-25	11:57:19	1,000	57.88	SE	03-Dec-25	14:43:16	13	57.32	SE
02-Dec-25	11:38:53	1,000	57.88	SE	03-Dec-25	14:39:04	500	57.34	SE
02-Dec-25	11:29:28	1,000	57.82	SE	03-Dec-25	14:04:28	1,000	57.52	SE
02-Dec-25	11:20:21	1,000	57.84	SE	03-Dec-25	14:04:28	1,000	57.52	SE
02-Dec-25	11:11:06	1,000	57.88	SE	03-Dec-25	14:01:10	1,000	57.34	SE
02-Dec-25	11:00:43	1,000	57.84	SE	03-Dec-25	13:49:00	1,000	57.32	SE
02-Dec-25	10:52:38	1,000	57.84	SE	03-Dec-25	13:36:59	500	57.24	SE
02-Dec-25	10:47:24	500	57.84	SE	03-Dec-25	13:21:47	1,000	57.20	SE
02-Dec-25	10:30:33	1,000	57.88	SE	03-Dec-25	13:13:47	1,000	57.20	SE
02-Dec-25	10:30:33	1,000	57.88	SE	03-Dec-25	12:52:50	1,000	57.20	SE
02-Dec-25	10:07:47	1,000	57.78	SE	03-Dec-25	12:47:19	500	57.22	SE
02-Dec-25	10:07:47	1,000	57.78	SE	03-Dec-25	12:29:26	1,000	57.32	SE
02-Dec-25	09:57:49	1,000	57.70	SE	03-Dec-25	12:11:38	1,000	57.32	SE
02-Dec-25	09:49:39	1,000	57.68	SE	03-Dec-25	12:06:28	1,000	57.24	SE
02-Dec-25	09:38:04	1,000	57.56	SE	03-Dec-25	11:49:16	1,000	57.42	SE
02-Dec-25	09:29:16	1,500	57.56	SE	03-Dec-25	11:41:38	1,000	57.42	SE
02-Dec-25	09:24:20	500	57.50	SE	03-Dec-25	11:29:27	1,000	57.38	SE
02-Dec-25	09:22:20	500	57.52	SE	03-Dec-25	11:08:52	1,000	57.62	SE
02-Dec-25	09:17:02	500	57.46	SE	03-Dec-25	11:08:52	500	57.62	SE
02-Dec-25	09:10:43	500	57.38	SE	03-Dec-25	11:08:46	1,000	57.64	SE
02-Dec-25	09:08:26	500	57.40	SE	03-Dec-25	10:53:32	1,000	57.60	SE
02-Dec-25	09:08:16	500	57.40	SE	03-Dec-25	10:47:10	1,000	57.56	SE
02-Dec-25	09:05:57	500	57.42	SE	03-Dec-25	10:35:13	1,000	57.64	SE
02-Dec-25	09:04:28	124	57.38	SE	03-Dec-25	10:22:05	1,000	57.68	SE
02-Dec-25	09:04:28	376	57.38	SE	03-Dec-25	10:12:00	1,000	57.70	SE
03-Dec-25	16:48:30	500	57.08	SE	03-Dec-25	10:04:12	1,000	57.60	SE
03-Dec-25	16:48:29	500	57.08	SE	03-Dec-25	09:50:23	1,000	57.56	SE
03-Dec-25	16:48:29	500	57.08	SE	03-Dec-25	09:44:44	1,000	57.60	SE
03-Dec-25	16:48:29	500	57.06	SE	03-Dec-25	09:37:02	1,000	57.50	SE
03-Dec-25	16:48:07	500	57.04	SE	03-Dec-25	09:27:07	1,000	57.52	SE
03-Dec-25	16:39:12	1,000	57.00	SE	03-Dec-25	09:18:10	1,000	57.64	SE
03-Dec-25	16:35:39	1,000	57.06	SE	03-Dec-25	09:06:42	500	57.64	SE
03-Dec-25	16:31:47	1,000	56.78	SE	03-Dec-25	09:06:25	500	57.64	SE
03-Dec-25	16:28:45	1,000	56.78	SE	03-Dec-25	09:06:25	500	57.64	SE
03-Dec-25	16:20:15	1,000	56.78	SE	03-Dec-25	09:06:25	1,000	57.64	SE
03-Dec-25	16:20:14	1,000	56.78	SE
03-Dec-25	16:12:19	1,000	56.78	SE
03-Dec-25	16:12:19	1,000	56.78	SE
03-Dec-25	16:09:59	1,000	56.82	SE
03-Dec-25	16:07:26	1,000	56.78	SE

ABB SHARE BUYBACKS 4/4