ABB Ltd

Transaction in Own Shares • Oct 9, 2025

ZURICH, SWITZERLAND, OCTOBER 9, 2025

ABB share buybacks

October 2, 2025 – October 8, 2025

During the period October 2, 2025, to October 8, 2025, ABB repurchased a total of 245'606 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)
02-Oct-25	58'734	58.3427	3'426'697.56
03-Oct-25	52'000	58.8369	3'059'517.92
06-Oct-25	50'343	58.9103	2'965'720.13
07-Oct-25	35'007	58.8732	2'060'973.38
08-Oct-25	49'522	58.9531	2'919'473.14

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 8, 2025, 17'368'281 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	03-Oct-25	09:56:41	1'000	58.96	SE
02-Oct-25	09:07:20	2'000	58.32	SE	03-Oct-25	10:14:51	1'000	59.06	SE
02-Oct-25	09:17:49	2'000	58.38	SE	03-Oct-25	10:17:37	2'000	59.08	SE
02-Oct-25	09:31:07	2'000	58.34	SE	03-Oct-25	10:46:17	100	58.98	SE
02-Oct-25	09:47:00	2'000	58.16	SE	03-Oct-25	10:48:09	98	59	SE
02-Oct-25	10:14:09	2'000	58.06	SE	03-Oct-25	10:48:27	1'902	59	SE
02-Oct-25	10:27:26	2'000	58.14	SE	03-Oct-25	11:10:35	2'000	58.92	SE
02-Oct-25	10:52:06	2'000	58.22	SE	03-Oct-25	11:35:50	2'000	58.86	SE
02-Oct-25	11:17:35	2'000	58.48	SE	03-Oct-25	12:00:02	433	58.96	SE
02-Oct-25	11:29:59	2'000	58.24	SE	03-Oct-25	12:06:36	1'567	58.96	SE
02-Oct-25	11:59:42	2'000	58.2	SE	03-Oct-25	12:33:27	899	58.94	SE
02-Oct-25	12:04:05	2'000	58.3	SE	03-Oct-25	12:47:20	1'251	58.9	SE
02-Oct-25	12:23:29	2'000	58.38	SE	03-Oct-25	13:11:10	1'000	58.82	SE
02-Oct-25	12:57:59	1'000	58.42	SE	03-Oct-25	13:31:13	930	58.86	SE
02-Oct-25	13:04:39	2'000	58.4	SE	03-Oct-25	13:45:31	835	58.82	SE
02-Oct-25	13:34:04	1'503	58.44	SE	03-Oct-25	13:49:00	1'000	58.82	SE
02-Oct-25	13:52:06	1'000	58.56	SE	03-Oct-25	14:14:38	951	58.86	SE
02-Oct-25	13:52:06	1'000	58.56	SE	03-Oct-25	14:29:30	1'000	58.84	SE
02-Oct-25	14:16:35	1'000	58.56	SE	03-Oct-25	14:29:30	1'000	58.84	SE
02-Oct-25	14:32:00	1'000	58.56	SE	03-Oct-25	14:46:12	1'246	58.76	SE
02-Oct-25	14:34:40	1'000	58.52	SE	03-Oct-25	14:59:42	1'000	58.84	SE
02-Oct-25	14:41:04	1'000	58.5	SE	03-Oct-25	15:11:12	1'000	58.88	SE
02-Oct-25	14:50:03	1'000	58.46	SE	03-Oct-25	15:25:05	784	58.82	SE
02-Oct-25	14:50:04	1'000	58.46	SE	03-Oct-25	15:33:27	2'000	58.9	SE
02-Oct-25	15:00:04	1'000	58.46	SE	03-Oct-25	15:37:40	1'000	58.88	SE
02-Oct-25	15:18:10	1'000	58.52	SE	03-Oct-25	15:42:35	1'126	58.82	SE
02-Oct-25	16:01:34	326	58.34	SE	03-Oct-25	15:48:13	2'000	58.82	SE
02-Oct-25	16:01:34	674	58.34	SE	03-Oct-25	15:54:41	503	58.82	SE
02-Oct-25	16:01:34	1'000	58.34	SE	03-Oct-25	15:54:56	1'000	58.82	SE
02-Oct-25	16:01:34	326	58.34	SE	03-Oct-25	16:01:29	688	58.74	SE
02-Oct-25	16:01:35	1'000	58.34	SE	03-Oct-25	16:03:35	1'540	58.74	SE
02-Oct-25	16:02:26	1'000	58.34	SE	03-Oct-25	16:09:30	549	58.76	SE
02-Oct-25	16:02:26	1'000	58.34	SE	03-Oct-25	16:11:30	1'000	58.78	SE
02-Oct-25	16:02:27	1'000	58.34	SE	03-Oct-25	16:15:38	939	58.74	SE
02-Oct-25	16:02:27	1'000	58.34	SE	03-Oct-25	16:19:44	1'246	58.7	SE
02-Oct-25	16:02:28	1'000	58.34	SE	03-Oct-25	16:28:12	2'000	58.68	SE
02-Oct-25	16:02:36	1'000	58.34	SE	03-Oct-25	16:35:09	1'349	58.7	SE
02-Oct-25	16:02:36	1'000	58.34	SE	03-Oct-25	16:43:21	785	58.56	SE
02-Oct-25	16:02:48	1'000	58.34	SE	03-Oct-25	16:45:30	776	58.58	SE
02-Oct-25	16:09:22	2'000	58.3	SE	03-Oct-25	16:49:38	804	58.64	SE
02-Oct-25	16:12:47	1'905	58.28	SE	03-Oct-25	16:53:03	699	58.6	SE
02-Oct-25	16:20:40	1'000	58.32	SE	06-Oct-25	09:08:11	1'193	58.74	SE
02-Oct-25	16:20:40	1'000	58.32	SE	06-Oct-25	09:08:53	439	58.72	SE
02-Oct-25	16:37:10	1'000	58.34	SE	06-Oct-25	09:09:09	1'000	58.74	SE
02-Oct-25	16:37:10	1'000	58.34	SE	06-Oct-25	09:13:10	2'000	58.76	SE
02-Oct-25	16:37:11	1'000	58.34	SE	06-Oct-25	09:32:01	2'000	59	SE
03-Oct-25	09:03:43	2'000	58.8	SE	06-Oct-25	09:59:36	829	58.68	SE
03-Oct-25	09:05:13	2'000	58.8	SE	06-Oct-25	09:59:36	1'000	58.68	SE
03-Oct-25	09:31:15	2'000	58.88	SE	06-Oct-25	10:16:14	1'000	58.74	SE
03-Oct-25	09:44:41	1'000	58.88	SE	06-Oct-25	10:21:38	1'000	58.7	SE

ABB SHARE BUYBACKS 2/4

06-Oct-25	10:21:38	1'000	58.7	SE	07-Oct-25	12:41:23	1'000	59.06	SE
06-Oct-25	10:47:59	1'000	58.82	SE	07-Oct-25	12:57:24	1'000	59	SE
06-Oct-25	10:58:14	1'000	58.82	SE	07-Oct-25	13:07:26	1'000	59	SE
06-Oct-25	11:06:36	2'000	58.9	SE	07-Oct-25	13:30:26	1'000	58.96	SE
06-Oct-25	11:29:32	2'000	58.9	SE	07-Oct-25	13:45:50	1'000	58.92	SE
06-Oct-25	11:49:15	2'000	58.96	SE	07-Oct-25	14:03:43	1'000	58.96	SE
06-Oct-25	12:17:27	1'000	59.02	SE	07-Oct-25	14:13:26	1'000	58.88	SE
06-Oct-25	12:20:23	1'000	59	SE	07-Oct-25	14:25:19	1'164	58.92	SE
06-Oct-25	12:45:00	1'160	58.9	SE	07-Oct-25	14:37:29	1'000	58.88	SE
06-Oct-25	13:07:34	1'000	59.06	SE	07-Oct-25	14:45:57	2'000	58.88	SE
06-Oct-25	13:07:34	907	59.06	SE	07-Oct-25	14:55:52	836	58.94	SE
06-Oct-25	13:07:35	93	59.06	SE	07-Oct-25	15:07:35	2'000	58.98	SE
06-Oct-25	13:17:33	2'000	59.06	SE	07-Oct-25	16:58:20	152	58.86	SE
06-Oct-25	14:09:18	691	59.06	SE	08-Oct-25	09:08:30	1'000	59.46	SE
06-Oct-25	14:14:27	1'309	59.06	SE	08-Oct-25	09:08:30	1'000	59.46	SE
06-Oct-25	14:32:04	421	58.98	SE	08-Oct-25	09:10:23	500	59.2	SE
06-Oct-25	14:34:45	1	58.96	SE	08-Oct-25	09:10:23	500	59.2	SE
06-Oct-25	14:34:52	186	58.96	SE	08-Oct-25	09:10:23	1'000	59.2	SE
06-Oct-25	14:34:52	2	58.96	SE	08-Oct-25	09:31:08	1'000	59.1	SE
06-Oct-25	14:36:47	1'960	58.94	SE	08-Oct-25	09:34:45	1'000	59.18	SE
06-Oct-25	14:56:13	118	59	SE	08-Oct-25	09:37:39	500	59.24	SE
06-Oct-25	14:56:26	882	59	SE	08-Oct-25	09:54:20	1'000	59.24	SE
06-Oct-25	14:56:26	1'000	59	SE	08-Oct-25	10:01:01	534	59.4	SE
06-Oct-25	15:00:53	1'000	59.02	SE	08-Oct-25	10:07:12	1'000	59.34	SE
06-Oct-25	15:25:00	11	59.04	SE	08-Oct-25	10:14:42	1'000	59.42	SE
06-Oct-25	15:25:05	871	59.06	SE	08-Oct-25	10:18:35	2'000	59.42	SE
06-Oct-25	15:59:00	1'000	58.92	SE	08-Oct-25	10:37:19	211	59.46	SE
06-Oct-25	15:59:00	1'000	58.92	SE	08-Oct-25	10:46:25	1'000	59.5	SE
06-Oct-25	15:59:00	1'000	58.92	SE	08-Oct-25	10:56:42	20	59.46	SE
06-Oct-25	15:59:31	50	58.92	SE	08-Oct-25	10:56:42	480	59.46	SE
06-Oct-25	16:01:20	171	58.92	SE	08-Oct-25	10:56:42	500	59.46	SE
06-Oct-25	16:01:20	768	58.92	SE	08-Oct-25	10:56:42	500	59.46	SE
06-Oct-25	16:01:20	2'000	58.92	SE	08-Oct-25	10:56:42	500	59.46	SE
06-Oct-25	16:01:20	1'000	58.92	SE	08-Oct-25	11:29:14	1'000	59.26	SE
06-Oct-25	16:01:20	1'000	58.92	SE	08-Oct-25	11:30:44	1'000	59.28	SE
06-Oct-25	16:01:24	1'061	58.92	SE	08-Oct-25	11:35:41	1'000	59.24	SE
06-Oct-25	16:03:07	1'504	58.92	SE	08-Oct-25	11:49:21	776	59.28	SE
06-Oct-25	16:03:07	496	58.92	SE	08-Oct-25	11:57:18	1'000	59.32	SE
06-Oct-25	16:09:24	2'000	58.92	SE	08-Oct-25	12:01:27	771	59.32	SE
06-Oct-25	16:16:05	2'000	58.9	SE	08-Oct-25	12:13:42	771	59.3	SE
06-Oct-25	16:24:13	220	58.92	SE	08-Oct-25	12:22:38	528	59.22	SE
07-Oct-25	09:09:11	1'000	58.78	SE	08-Oct-25	12:23:44	1'000	59.16	SE
07-Oct-25	09:09:11	1'000	58.78	SE	08-Oct-25	12:49:51	650	59.12	SE
07-Oct-25	09:11:48	1'000	58.84	SE	08-Oct-25	13:00:00	1'000	59.2	SE
07-Oct-25	09:26:09	1'000	58.7	SE	08-Oct-25	13:10:44	1'000	59.06	SE
07-Oct-25	09:34:42	603	58.8	SE	08-Oct-25	13:17:11	1'000	58.92	SE
07-Oct-25	09:40:14	873	58.68	SE	08-Oct-25	13:38:57	1'000	58.78	SE
07-Oct-25	09:40:14	1'000	58.68	SE	08-Oct-25	13:55:55	1'000	58.82	SE
07-Oct-25	10:00:03	569	58.78	SE	08-Oct-25	14:08:33	973	58.86	SE
07-Oct-25	10:03:59	1'442	58.76	SE	08-Oct-25	14:22:06	1'000	59	SE
07-Oct-25	10:18:43	656	58.68	SE	08-Oct-25	14:30:25	1'000	59	SE
07-Oct-25	10:18:43	1'000	58.68	SE	08-Oct-25	14:31:07	487	59	SE
07-Oct-25	10:28:13	1'000	58.64	SE	08-Oct-25	14:31:07	560	59	SE
07-Oct-25	10:45:33	712	58.84	SE	08-Oct-25	14:31:07	953	58.96	SE
07-Oct-25	10:45:33	1'000	58.84	SE	08-Oct-25	14:47:33	705	57.92	SE
07-Oct-25	10:54:19	2'000	58.86	SE	08-Oct-25	14:49:57	1'000	57.94	SE
07-Oct-25	11:17:06	2'000	58.9	SE	08-Oct-25	14:56:34	511	58.2	SE
07-Oct-25	11:46:39	2'000	58.96	SE	08-Oct-25	15:11:47	1'000	58.5	SE
07-Oct-25	12:09:24	2'000	59.08	SE	08-Oct-25	15:18:24	25	58.46	SE

ABB SHARE BUYBACKS 3/4

08-Oct-25	15:18:24	975	58.46	SE
08-Oct-25	15:18:24	1'000	58.46	SE
08-Oct-25	15:23:23	975	58.46	SE
08-Oct-25	15:30:24	1'000	58.56	SE
08-Oct-25	15:30:24	894	58.56	SE
08-Oct-25	15:38:03	1'000	58.34	SE
08-Oct-25	15:42:09	285	58.32	SE
08-Oct-25	15:42:09	715	58.32	SE
08-Oct-25	15:42:09	1'000	58.32	SE
08-Oct-25	15:50:35	1'000	58.28	SE
08-Oct-25	15:50:35	723	58.28	SE
08-Oct-25	15:58:03	1'000	58.6	SE
08-Oct-25	16:01:26	1'000	58.68	SE
08-Oct-25	16:04:47	1'000	58.78	SE

ABB SHARE BUYBACKS 4/4