ABB Ltd

Transaction in Own Shares • Sep 18, 2025

ZURICH, SWITZERLAND, SEPTEMBER 18, 2025

ABB share buybacks

September 11, 2025 – September 17, 2025

During the period September 11, 2025, to September 17, 2025, ABB repurchased a total of 287'053 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)
11-Sep-25	39'053	56.6245	2'211'355.39
12-Sep-25	80'000	56.8272	4'546'174.88
15-Sep-25	60'000	56.6845	3'401'072.28
16-Sep-25	56'000	56.5199	3'165'115.74
17-Sep-25	52'000	55.6000	2'891'200.05

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 17, 2025, is 16'661'910 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	12-Sep-25	09:21:14	1'000	57	SE
11-Sep-25	09:04:01	1'000	56.54	SE	12-Sep-25	09:33:18	1'000	56.82	SE
11-Sep-25	09:04:01	1'000	56.54	SE	12-Sep-25	09:34:35	1'000	56.82	SE
11-Sep-25	09:05:04	921	56.5	SE	12-Sep-25	09:46:08	1'000	56.74	SE
11-Sep-25	09:15:35	1'000	56.54	SE	12-Sep-25	09:55:02	692	56.76	SE
11-Sep-25	09:18:54	650	56.48	SE	12-Sep-25	09:56:20	1'000	56.74	SE
11-Sep-25	09:30:04	1'000	56.46	SE	12-Sep-25	10:05:00	1'000	56.7	SE
11-Sep-25	09:36:49	31	56.46	SE	12-Sep-25	10:10:36	2'000	56.72	SE
11-Sep-25	09:37:13	1'969	56.52	SE	12-Sep-25	10:27:50	775	56.7	SE
11-Sep-25	09:51:40	1'000	56.54	SE	12-Sep-25	10:27:50	1'000	56.7	SE
11-Sep-25	10:03:46	1'000	56.56	SE	12-Sep-25	10:41:36	1'000	56.68	SE
11-Sep-25	10:06:01	1'000	56.54	SE	12-Sep-25	10:41:36	1'000	56.68	SE
11-Sep-25	10:11:06	1'000	56.56	SE	12-Sep-25	10:55:33	699	56.7	SE
11-Sep-25	10:26:38	1'000	56.56	SE	12-Sep-25	11:05:11	687	56.74	SE
11-Sep-25	10:38:40	1'000	56.48	SE	12-Sep-25	11:05:11	1'000	56.74	SE
11-Sep-25	10:49:15	1'000	56.52	SE	12-Sep-25	11:16:16	1'372	56.76	SE
11-Sep-25	10:57:35	1'000	56.5	SE	12-Sep-25	11:19:03	2'000	56.78	SE
11-Sep-25	11:01:06	1'000	56.52	SE	12-Sep-25	11:41:51	1'939	56.84	SE
11-Sep-25	11:19:15	1'000	56.52	SE	12-Sep-25	11:58:29	989	56.88	SE
11-Sep-25	11:22:47	277	56.52	SE	12-Sep-25	11:58:29	1'011	56.88	SE
11-Sep-25	11:30:00	1'000	56.56	SE	12-Sep-25	12:00:08	11	56.88	SE
11-Sep-25	11:42:13	1'000	56.54	SE	12-Sep-25	12:15:01	1'000	56.9	SE
11-Sep-25	11:51:07	194	56.5	SE	12-Sep-25	12:28:01	996	56.88	SE
11-Sep-25	11:52:29	1'000	56.5	SE	12-Sep-25	12:37:50	1'000	56.88	SE
11-Sep-25	12:00:19	1'000	56.52	SE	12-Sep-25	12:53:28	634	56.9	SE
11-Sep-25	12:12:11	1'000	56.68	SE	12-Sep-25	12:59:50	1'000	56.92	SE
11-Sep-25	12:25:11	1'000	56.7	SE	12-Sep-25	13:09:33	1'000	56.92	SE
11-Sep-25	12:41:42	2'000	56.74	SE	12-Sep-25	13:21:58	1'000	56.9	SE
11-Sep-25	13:03:58	1'000	56.72	SE	12-Sep-25	13:33:27	1'000	56.88	SE
11-Sep-25	13:26:39	88	56.8	SE	12-Sep-25	13:33:27	1'000	56.88	SE
11-Sep-25	13:26:59	814	56.8	SE	12-Sep-25	13:55:31	1'000	56.74	SE
11-Sep-25	13:40:43	1'000	56.74	SE	12-Sep-25	13:55:31	1'000	56.74	SE
11-Sep-25	13:51:50	40	56.68	SE	12-Sep-25	14:21:51	1'000	56.78	SE
11-Sep-25	13:52:23	69	56.68	SE	12-Sep-25	14:21:51	1'000	56.78	SE
11-Sep-25	13:52:59	1'000	56.7	SE	12-Sep-25	14:35:25	1'000	56.78	SE
11-Sep-25	13:52:59	1'000	56.7	SE	12-Sep-25	14:36:57	1'000	56.78	SE
11-Sep-25	14:15:34	1'000	56.74	SE	12-Sep-25	14:48:32	1'000	56.82	SE
11-Sep-25	14:29:29	1'000	56.82	SE	12-Sep-25	14:49:49	1'000	56.84	SE
11-Sep-25	14:30:06	1'000	56.8	SE	12-Sep-25	14:58:59	912	56.82	SE
11-Sep-25	14:40:52	1'000	56.68	SE	12-Sep-25	14:59:00	88	56.82	SE
11-Sep-25	14:51:36	1'000	56.76	SE	12-Sep-25	14:59:00	1'000	56.82	SE
11-Sep-25	14:56:21	708	56.8	SE	12-Sep-25	15:13:22	718	56.86	SE
11-Sep-25	14:56:21	292	56.8	SE	12-Sep-25	15:16:00	2'000	56.88	SE
11-Sep-25	15:05:43	1'000	56.88	SE	12-Sep-25	16:05:29	44	56.84	SE
11-Sep-25	15:12:26	1'000	56.84	SE	12-Sep-25	16:12:40	38	56.84	SE
12-Sep-25	09:03:40	1'000	57	SE	12-Sep-25	16:32:56	918	56.84	SE
12-Sep-25	09:03:40	1'000	57	SE	12-Sep-25	16:32:56	1'000	56.84	SE
12-Sep-25	09:04:16	1'000	57.04	SE	12-Sep-25	16:35:10	1'000	56.84	SE
12-Sep-25	09:08:58	1'000	56.86	SE	12-Sep-25	16:35:10	1'000	56.84	SE
12-Sep-25	09:14:57	1'000	56.98	SE	12-Sep-25	16:35:10	13	56.84	SE

12 -Sep -25	16:35:10	1'000	56.84	SE	15 -Sep -25	14:15:55	1'186	56.76	SE
12 -Sep -25	16:35:13	1'000	56.84	SE	15 -Sep -25	14:34:51	1'101	56.8	SE
12 -Sep -25	16:35:13	1'000	56.84	SE	15 -Sep -25	14:43:43	1'000	56.78	SE
12 -Sep -25	16:35:16	1'000	56.84	SE	15 -Sep -25	14:44:38	1'000	56.78	SE
12 -Sep -25	16:35:16	1'000	56.84	SE	15 -Sep -25	14:47:04	899	56.8	SE
12 -Sep -25	16:38:21	636	56.84	SE	15 -Sep -25	15:03:34	2'000	56.7	SE
12 -Sep -25	16:38:21	364	56.84	SE	15 -Sep -25	15:08:38	1'000	56.7	SE
12 -Sep -25	16:38:21	1'000	56.84	SE	15 -Sep -25	15:09:01	1'000	56.7	SE
12 -Sep -25	16:38:21	1'000	56.84	SE	15 -Sep -25	15:15:51	2'000	56.64	SE
12 -Sep -25	16:38:21	1'000	56.84	SE	15 -Sep -25	15:30:07	2'000	56.62	SE
12 -Sep -25	16:38:22	1'000	56.84	SE	15 -Sep -25	15:37:33	806	56.52	SE
12 -Sep -25	16:38:22	162	56.84	SE	15 -Sep -25	15:41:31	2'000	56.5	SE
12 -Sep -25	16:38:22	838	56.84	SE	15 -Sep -25	15:50:10	1'024	56.52	SE
12 -Sep -25	16:38:22	1'000	56.84	SE	15 -Sep -25	15:52:12	1'455	56.52	SE
12 -Sep -25	16:38:23	1'000	56.84	SE	15 -Sep -25	16:01:40	1'000	56.52	SE
12 -Sep -25	16:38:23	1'000	56.84	SE	15 -Sep -25	16:05:11	1'000	56.52	SE
12 -Sep -25	16:38:24	280	56.84	SE	15 -Sep -25	16:08:36	2'000	56.54	SE
12 -Sep -25	16:38:24	720	56.84	SE	15 -Sep -25	16:14:07	2'000	56.56	SE
12 -Sep -25	16:38:26	240	56.84	SE	15 -Sep -25	16:36:22	1'847	56.7	SE
12 -Sep -25	16:38:30	584	56.84	SE	15 -Sep -25	16:36:22	153	56.7	SE
12 -Sep -25	16:38:30	1'000	56.84	SE	15 -Sep -25	16:36:29	155	56.7	SE
12 -Sep -25	16:38:30	176	56.84	SE	15 -Sep -25	16:36:39	300	56.7	SE
12 -Sep -25	16:38:31	416	56.84	SE	15 -Sep -25	16:37:10	500	56.7	SE
12 -Sep -25	16:38:31	408	56.84	SE	15 -Sep -25	16:46:57	101	56.7	SE
12 -Sep -25	16:38:31	240	56.84	SE	15 -Sep -25	16:47:45	841	56.7	SE
12 -Sep -25	16:38:31	352	56.84	SE	15 -Sep -25	16:47:45	1'058	56.7	SE
12 -Sep -25	16:38:31	584	56.84	SE	15 -Sep -25	16:49:46	229	56.68	SE
12 -Sep -25	16:38:31	416	56.84	SE	15 -Sep -25	16:49:46	1'000	56.68	SE
12 -Sep -25	16:38:31	1'000	56.84	SE	15 -Sep -25	16:54:45	143	56.68	SE
12 -Sep -25	16:38:32	1'000	56.84	SE	16 -Sep -25	09:05:53	2'000	56.68	SE
12 -Sep -25	16:38:32	584	56.84	SE	16 -Sep -25	09:06:35	1'000	56.68	SE
12 -Sep -25	16:38:45	1'000	56.82	SE	16 -Sep -25	09:09:20	2'000	56.66	SE
12 -Sep -25	16:41:46	1'000	56.82	SE	16 -Sep -25	09:32:51	2'000	56.9	SE
12 -Sep -25	16:45:22	1'000	56.76	SE	16 -Sep -25	09:50:21	2'000	56.94	SE
12 -Sep -25	16:49:04	1'000	56.78	SE	16 -Sep -25	10:19:52	2'000	56.92	SE
12 -Sep -25	16:51:51	18	56.76	SE	16 -Sep -25	10:38:31	2'000	56.82	SE
12 -Sep -25	16:52:57	420	56.76	SE	16 -Sep -25	10:52:29	1'000	56.84	SE
12 -Sep -25	16:54:56	50	56.76	SE	16 -Sep -25	11:14:44	1'000	56.84	SE
12 -Sep -25	16:55:58	976	56.78	SE	16 -Sep -25	11:14:44	1'000	56.84	SE
15 -Sep -25	09:05:16	2'000	56.84	SE	16 -Sep -25	11:33:02	1'000	56.74	SE
15 -Sep -25	09:05:22	2'000	56.82	SE	16 -Sep -25	11:33:02	1'000	56.74	SE
15 -Sep -25	09:20:21	2'000	56.78	SE	16 -Sep -25	12:02:16	1'785	56.68	SE
15 -Sep -25	09:44:26	2'000	56.68	SE	16 -Sep -25	12:18:56	1'000	56.7	SE
15 -Sep -25	10:00:37	1'000	56.68	SE	16 -Sep -25	12:34:41	588	56.72	SE
15 -Sep -25	10:00:37	1'000	56.68	SE	16 -Sep -25	12:46:02	1'000	56.86	SE
15 -Sep -25	10:19:20	1'000	56.7	SE	16 -Sep -25	13:02:35	1'000	56.7	SE
15 -Sep -25	10:26:16	2'000	56.64	SE	16 -Sep -25	13:18:05	1'238	56.72	SE
15 -Sep -25	10:49:24	2'000	56.74	SE	16 -Sep -25	13:37:42	1'000	56.74	SE
15 -Sep -25	11:11:37	2'000	56.66	SE	16 -Sep -25	13:57:33	1'134	56.74	SE
15 -Sep -25	11:26:25	2'000	56.66	SE	16 -Sep -25	14:10:17	1'882	56.72	SE
15 -Sep -25	11:56:59	1'000	56.64	SE	16 -Sep -25	14:31:25	1'000	56.74	SE
15 -Sep -25	12:07:06	1'000	56.7	SE	16 -Sep -25	14:38:35	558	56.78	SE
15 -Sep -25	12:07:06	1'000	56.7	SE	16 -Sep -25	14:38:35	1'442	56.78	SE
15 -Sep -25	12:25:36	1'000	56.7	SE	16 -Sep -25	14:58:00	1'887	56.62	SE
15 -Sep -25	12:53:42	388	56.78	SE	16 -Sep -25	15:18:18	989	56.58	SE
15 -Sep -25	13:00:41	1'000	56.78	SE	16 -Sep -25	15:26:56	1'000	56.5	SE
15 -Sep -25	13:15:49	2'000	56.78	SE	16 -Sep -25	15:26:56	1'000	56.5	SE
15 -Sep -25	13:46:03	2'000	56.82	SE	16 -Sep -25	15:29:28	2'000	56.46	SE
15 -Sep -25	14:13:12	814	56.76	SE	16 -Sep -25	15:34:56	2'000	56.38	SE

15:43:23	1'000	56.28	SE
15:47:56	1'000	56.24	SE
15:47:56	1'000	56.24	SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
09:37:48	1'000	55.78	SE
09:47:27	1'000	55.78	SE
09:47:27	1'000	55.78	SE
10:09:11	1'000	55.78	SE
10:09:12	1'000	55.78	SE
10:24:08	1'000	55.78	SE
10:42:05	1'000	55.7	SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
			SE
14:49:59	901	55.58	SE
14:56:42	611	55.58	SE
15:07:05	611	55.54	SE
15:10:02	1'000	55.5	SE
15:19:41	1'000	55.52	SE
15:30:07	611	55.54	SE
15:36:20	1'352	55.52	SE
15:38:10	765	55.48	SE
			SE
			SE
			SE
			SE
	15:57:50 15:57:50 16:06:56 16:09:46 16:15:36 16:20:17 16:26:03 16:30:54 16:30:54 16:40:28 16:42:40 16:49:53 16:53:05 09:06:43 09:06:55 09:12:25 09:16:37 09:26:10 10:42:05 11:06:32 11:16:50 11:16:50 11:16:50 11:40:45 11:50:56 11:50:56 12:19:27 12:19:27 12:46:56 13:06:24 13:06:24 13:36:37 13:49:30 13:55:40 13:55:40 14:29:37 14:37:29 15:41:31 15:49:49 15:56:29 15:56:29	755 1'245 893 1'331 1'000 1'265 1'000 1'000 1'000 893 1'000 670 445 979 1'021 543 600 1'095 1'000 1'000 457 543 1'000 782 789 1'211 674 1'000 1'000 766 1'000 728 592 1'000 1'000 1'000 1'000 1'956 1'000 1'000 1'000	56.1 56.1 55.96 55.9 55.96 55.98 55.9 55.92 55.92 55.92 55.92 55.86 55.84 55.78 55.78 55.8 55.84 55.9 55.7 55.74 55.7 55.7 55.7 55.72 55.68 55.68 55.64 55.64 55.6 55.52 55.52 55.48 55.62 55.6 55.6 55.64 55.56 55.52 55.56 55.6 55.6

17 -Sep -25	16:02:43	1'000	55.56	SE
17 -Sep -25	16:02:43	1'000	55.56	SE
17 -Sep -25	16:11:16	1'000	55.6	SE
17 -Sep -25	16:11:16	765	55.6	SE
17 -Sep -25	16:17:20	882	55.6	SE
17 -Sep -25	16:17:20	1'118	55.6	SE
17 -Sep -25	16:25:30	2'000	55.46	SE
17 -Sep -25	16:34:42	765	55.3	SE
17 -Sep -25	16:36:46	2'000	55.26	SE
17 -Sep -25	16:50:25	1'883	55.22	SE