ABB Ltd

Transaction in Own Shares • Oct 5, 2023

ZURICH, SWITZERLAND, OCTOBER 5, 2023

ABB share buybacks

September 28, 2023 – October 4, 2023

During the period September 28, 2023, to October 4, 2023, ABB repurchased a total of 465,500 shares as part of its share buyback program announced on March 31, 2023.

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)
Sep 28, 2023	63'000	32.6003	2'053'819.97
Sep 29, 2023	103'500	33.0470	3'420'360.05
Oct 2, 2023	101'500	33.1592	3'365'655.04
Oct 3, 2023	98'500	32.7637	3'227'225.04
Oct 4, 2023	99'000	32.7606	3'243'299.99

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 April 3, 2023, to and including October 4, 2023, is 11,322,500 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/2023

ABB is a technology leader in electrification and automation, enabling a more sustainable and resourceefficient future. The company's solutions connect engineering know-how and software to optimize how things are manufactured, moved, powered and operated. Building on more than 130 years of excellence, ABB's ~105,000 employees are committed to driving innovations that accelerate industrial transformation. 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	2023-09-28	14:51:01	1'500	32.61	SE
2023-09-28	09:21:30	1'500	32.64	SE	2023-09-29	09:10:56	1'500	32.95	SE
2023-09-28	09:29:42	2'000	32.52	SE	2023-09-29	09:17:55	1'500	33.00	SE
2023-09-28	09:40:04	1'500	32.56	SE	2023-09-29	09:27:17	1'500	33.01	SE
2023-09-28	09:48:16	1'500	32.61	SE	2023-09-29	09:36:05	1'500	33.06	SE
2023-09-28	09:55:55	1'500	32.58	SE	2023-09-29	09:42:05	1'500	32.97	SE
2023-09-28	10:04:20	1'500	32.62	SE	2023-09-29	09:50:23	1'500	32.91	SE
2023-09-28	10:12:59	1'500	32.57	SE	2023-09-29	09:59:38	1'500	32.84	SE
2023-09-28	10:20:19	1'500	32.58	SE	2023-09-29	10:08:04	1'500	32.94	SE
2023-09-28	10:28:27	1'500	32.48	SE	2023-09-29	10:16:00	1'500	33.00	SE
2023-09-28	10:36:54	1'500	32.46	SE	2023-09-29	10:24:08	1'500	32.98	SE
2023-09-28	10:42:36	1'500	32.51	SE	2023-09-29	10:33:03	1'500	32.95	SE
2023-09-28	10:55:10	1'500	32.59	SE	2023-09-29	10:39:45	1'500	32.97	SE
2023-09-28	11:00:33	1'500	32.57	SE	2023-09-29	10:51:40	1'500	32.99	SE
2023-09-28	11:07:20	1'500	32.48	SE	2023-09-29	10:57:35	1'500	32.95	SE
2023-09-28	11:16:28	1'500	32.45	SE	2023-09-29	11:05:09	1'500	33.00	SE
2023-09-28	11:24:46	1'500	32.52	SE	2023-09-29	11:13:26	1'500	33.09	SE
2023-09-28	11:32:29	1'500	32.50	SE	2023-09-29	11:22:40	1'500	33.11	SE
2023-09-28	11:41:08	1'500	32.51	SE	2023-09-29	11:28:26	1'500	33.17	SE
2023-09-28	11:49:14	1'500	32.56	SE	2023-09-29	11:38:32	1'500	33.10	SE
2023-09-28	11:56:35	2'000	32.59	SE	2023-09-29	11:45:30	1'500	33.09	SE
2023-09-28	12:09:10	2'000	32.61	SE	2023-09-29	11:54:24	1'500	33.13	SE
2023-09-28	12:18:44	1'500	32.63	SE	2023-09-29	12:03:02	1'500	33.11	SE
2023-09-28	12:25:14	1'500	32.61	SE	2023-09-29	12:10:51	1'500	33.14	SE
2023-09-28	12:34:56	1'500	32.63	SE	2023-09-29	12:19:04	1'500	33.21	SE
2023-09-28	12:42:00	1'500	32.68	SE	2023-09-29	12:27:35	1'500	33.22	SE
2023-09-28	12:49:24	1'500	32.66	SE	2023-09-29	12:38:07	1'500	33.16	SE
2023-09-28	13:02:34	1'500	32.67	SE	2023-09-29	12:43:09	1'500	33.16	SE
2023-09-28	13:08:33	1'500	32.65	SE	2023-09-29	12:51:20	1'500	33.17	SE
2023-09-28	13:15:35	1'500	32.69	SE	2023-09-29	13:00:06	1'500	33.14	SE
2023-09-28	13:24:06	1'500	32.71	SE	2023-09-29	13:08:05	1'500	33.16	SE
2023-09-28	13:30:05	1'500	32.67	SE	2023-09-29	13:15:39	1'500	33.13	SE
2023-09-28	13:39:40	1'500	32.61	SE	2023-09-29	13:23:53	1'500	33.20	SE
2023-09-28	13:47:46	1'500	32.62	SE	2023-09-29	13:30:23	1'500	33.18	SE
2023-09-28	13:54:10	1'500	32.64	SE	2023-09-29	13:40:26	1'500	33.16	SE
2023-09-28	14:02:32	1'500	32.61	SE	2023-09-29	13:48:21	1'500	33.21	SE
2023-09-28	14:13:00	1'500	32.65	SE	2023-09-29	14:00:02	1'500	33.15	SE
2023-09-28	14:18:06	1'500	32.66	SE	2023-09-29	14:04:57	1'500	33.13	SE
2023-09-28	14:30:32	1'500	32.70	SE	2023-09-29	14:13:36	1'500	33.14	SE
2023-09-28	14:35:24	1'500	32.72	SE	2023-09-29	14:20:07	1'500	33.13	SE
2023-09-28	14:42:10	1'500	32.71	SE	2023-09-29	14:30:45	1'500	33.17	SE

2023-09-29	14:37:15	1'500	33.13	SE	2023-10-02	12:25:32	1'500	33.19	SE
2023-09-29	14:45:15	1'500	33.12	SE	2023-10-02	12:28:21	1'500	33.18	SE
2023-09-29	14:53:33	1'500	33.09	SE	2023-10-02	12:29:48	1'500	33.17	SE
2023-09-29	15:26:15	1'500	33.04	SE	2023-10-02	12:30:12	1'500	33.16	SE
2023-09-29	15:26:17	1'500	33.05	SE	2023-10-02	12:38:53	1'500	33.15	SE
2023-09-29	15:26:17	1'500	33.05	SE	2023-10-02	12:49:01	1'500	33.22	SE
2023-09-29	15:26:18	1'500	33.05	SE	2023-10-02	12:53:53	1'500	33.20	SE
2023-09-29	15:26:18	1'500	33.05	SE	2023-10-02	13:25:16	1'500	33.27	SE
2023-09-29	15:26:19	1'500	33.05	SE	2023-10-02	13:25:39	1'500	33.26	SE
2023-09-29	15:26:19	1'500	33.05	SE	2023-10-02	13:26:00	1'500	33.25	SE
2023-09-29	15:30:51	1'500	33.05	SE	2023-10-02	13:32:26	1'500	33.27	SE
2023-09-29	15:34:49	1'500	33.00	SE	2023-10-02	13:40:51	1'500	33.27	SE
2023-09-29	15:40:20	1'500	33.01	SE	2023-10-02	13:44:23	1'500	33.21	SE
2023-09-29	15:46:12	1'500	33.04	SE	2023-10-02	13:53:20	1'500	33.20	SE
2023-09-29	15:48:43	1'500	33.01	SE	2023-10-02	14:05:16	1'500	33.16	SE
2023-09-29	15:52:36	1'500	33.02	SE	2023-10-02	14:07:58	1'500	33.16	SE
2023-09-29	15:58:50	1'500	33.03	SE	2023-10-02	14:16:30	1'500	33.16	SE
2023-09-29	16:01:35	1'500	33.01	SE	2023-10-02	14:31:50	1'500	33.19	SE
2023-09-29	16:05:21	1'500	33.02	SE	2023-10-02	14:34:03	1'500	33.18	SE
2023-09-29	16:10:20	1'500	33.00	SE	2023-10-02	14:45:30	1'500	33.19	SE
2023-09-29	16:15:08	1'500	33.01	SE	2023-10-02	14:55:04	1'500	33.07	SE
2023-09-29	16:18:44	1'500	32.91	SE	2023-10-02	15:04:22	1'500	33.10	SE
2023-09-29	16:23:55	1'500	32.93	SE	2023-10-02	15:09:53	1'500	33.05	SE
2023-09-29	16:28:10	1'500	32.87	SE	2023-10-02	15:17:49	1'500	33.11	SE
2023-09-29	16:31:53	1'500	32.89	SE	2023-10-02	15:20:06	1'500	33.09	SE
2023-09-29	16:36:18	1'500	32.88	SE	2023-10-02	15:45:21	1'500	33.13	SE
2023-09-29	16:41:04	1'500	32.85	SE	2023-10-02	15:46:01	1'500	33.12	SE
2023-09-29	16:45:15	1'500	32.86	SE	2023-10-02	15:47:01	1'500	33.11	SE
2023-09-29	16:50:06	1'500	32.89	SE	2023-10-02	15:47:07	1'500	33.10	SE
2023-10-02	09:14:42	1'500	33.15	SE	2023-10-02	15:51:22	1'500	33.09	SE
2023-10-02	09:26:27	1'500	33.24	SE	2023-10-02	15:52:11	1'500	33.08	SE
2023-10-02	09:28:36	1'500	33.25	SE	2023-10-02	15:52:44	1'500	33.07	SE
2023-10-02	09:40:23	1'500	33.23	SE	2023-10-02	15:53:07	1'500	33.06	SE
2023-10-02	09:44:56	1'500	33.22	SE	2023-10-02	16:00:02	1'500	33.14	SE
2023-10-02	09:53:58	2'000	33.19	SE	2023-10-02	16:21:51	1'500	33.11	SE
2023-10-02	10:05:20	1'500	33.22	SE	2023-10-02	16:22:03	1'500	33.11	SE
2023-10-02	10:21:21	2'000	33.17	SE	2023-10-02	16:22:12	1'500	33.10	SE
2023-10-02	10:23:14	1'500	33.23	SE	2023-10-02	16:27:20	1'500	33.13	SE
2023-10-02	10:32:28	1'500	33.26	SE	2023-10-02	16:27:41	1'500	33.12	SE
2023-10-02	10:40:51	1'500	33.29	SE	2023-10-02	16:29:57	1'500	33.11	SE
2023-10-02	10:49:35	1'500	33.32	SE	2023-10-02	16:30:07	1'500	33.10	SE
2023-10-02	10:57:46	1'500	33.25	SE	2023-10-02	16:31:57	1'500	33.08	SE
2023-10-02	11:05:44	1'500	33.13	SE	2023-10-02	16:37:36	1'500	33.06	SE
2023-10-02	11:31:58	1'500	33.20	SE	2023-10-02	16:41:19	1'500	33.05	SE
2023-10-02	11:44:08	1'500	33.18	SE	2023-10-02	16:46:09	1'500	33.09	SE
2023-10-02	11:45:26	1'500	33.16	SE	2023-10-02	16:53:03	1'500	33.05	SE
2023-10-02	11:47:32	1'500	33.15	SE	2023-10-02	16:53:25	1'500	33.04	SE
2023-10-02	11:48:17	1'500	33.14	SE	2023-10-03	10:32:28	2'000	33.05	SE
2023-10-02	12:19:01	1'500	33.16	SE	2023-10-03	10:44:09	2'000	33.00	SE

2023-10-03	10:58:00	1,500	32.95	SE	2023-10-03	16:15:15	2'000	32.76	SE
2023-10-03	10:59:54	1,500	32.94	SE	2023-10-03	16:15:18	2'000	32.76	SE
2023-10-03	11:05:19	1,500	32.90	SE	2023-10-03	16:15:19	1,500	32.77	SE
2023-10-03	11:13:45	1,500	32.87	SE	2023-10-03	16:15:34	1'500	32.76	SE
2023-10-03	11:18:45	1,500	32.90	SE	2023-10-03	16:17:44	1,500	32.72	SE
2023-10-03	11:27:38	1,500	32.83	SE	2023-10-03	16:20:06	1,500	32.72	SE
2023-10-03	11:33:07	1,500	32.78	SE	2023-10-03	16:23:02	1,500	32.74	SE
2023-10-03	11:40:34	1,500	32.78	SE	2023-10-03	16:26:06	1,500	32.76	SE
2023-10-03	11:47:50	1'500	32.64	SE	2023-10-03	16:29:27	1,500	32.77	SE
2023-10-03	11:55:22	1'500	32.78	SE	2023-10-03	16:31:44	1,500	32.75	SE
2023-10-03	12:04:09	2'000	32.78	SE	2023-10-03	16:34:40	1,500	32.77	SE
2023-10-03	12:11:35	1,500	32.75	SE	2023-10-03	16:37:32	1,500	32.77	SE
2023-10-03	12:17:34	1,500	32.76	SE	2023-10-04	09:11:37	1,500	32.46	SE
2023-10-03	12:28:00	1,500	32.84	SE	2023-10-04	09:20:00	1,500	32.63	SE
2023-10-03	12:34:12	1'500	32.89	SE	2023-10-04	09:27:48	1,500	32.59	SE
2023-10-03	12:38:38	1,500	32.87	SE	2023-10-04	09:36:51	1,500	32.56	SE
2023-10-03	12:44:35	1,500	32.76	SE	2023-10-04	09:45:35	1,500	32.74	SE
2023-10-03	12:55:47	1,500	32.77	SE	2023-10-04	09:52:55	1,500	32.70	SE
2023-10-03	13:00:01	1,500	32.77	SE	2023-10-04	10:01:46	1,500	32.72	SE
2023-10-03	13:07:58	1,500	32.79	SE	2023-10-04	10:09:59	1,500	32.71	SE
2023-10-03	13:16:23	1'500	32.75	SE	2023-10-04	10:17:45	1,500	32.71	SE
2023-10-03	13:21:19	1,500	32.76	SE	2023-10-04	10:33:37	1,500	32.76	SE
2023-10-03	13:27:41	1,500	32.74	SE	2023-10-04	10:36:02	1,500	32.75	SE
2023-10-03	13:35:40	1,500	32.70	SE	2023-10-04	10:44:29	1,500	32.80	SE
2023-10-03	13:41:35	1,500	32.68	SE	2023-10-04	10:56:49	1,500	32.79	SE
2023-10-03	13:49:23	1,500	32.65	SE	2023-10-04	11:02:06	1,500	32.74	SE
2023-10-03	13:55:28	1,500	32.63	SE	2023-10-04	11:10:04	1,500	32.76	SE
2023-10-03	14:01:41	1,500	32.62	SE	2023-10-04	11:18:46	1,500	32.83	SE
2023-10-03	14:10:01	1,500	32.59	SE	2023-10-04	11:27:16	1,500	32.81	SE
2023-10-03	14:17:05	1,500	32.61	SE	2023-10-04	11:36:41	1,500	32.84	SE
2023-10-03	14:23:48	1,500	32.61	SE	2023-10-04	11:44:35	1,500	32.86	SE
2023-10-03	14:32:30	2'000	32.67	SE	2023-10-04	11:54:12	1,500	32.89	SE
2023-10-03	14:40:17	1 500	32.70	SE	2023-10-04	12:03:26	1,500	32.86	SE
2023-10-03	14:47:09	1'500	32.64	SE	2023-10-04	12:10:06	1'500	32.88	SE
2023-10-03	14:55:20	1'500	32.64	SE	2023-10-04	12:19:28	1'500	32.90	SE
2023-10-03	15:00:42	1'500	32.67	SE	2023-10-04	12:28:00	1'500	32.94	SE
2023-10-03	15:08:44	1'500	32.76	SE	2023-10-04	12:37:26	1'500	32.87	SE
2023-10-03	15:15:59	1'500	32.70	SE	2023-10-04	12:45:14	1'500	32.88	SE
2023-10-03	15:22:15	1'500	32.72	SE	2023-10-04	12:55:34	1,500	32.85	SE
2023-10-03	15:28:50	1'500	32.79	SE	2023-10-04	13:02:25	1'500	32.85	SE
2023-10-03	16:14:46	1'500	32.77	SE	2023-10-04	13:10:32	1'500	32.84	SE
2023-10-03	16:14:57	1'500	32.77	SE	2023-10-04	13:19:14	1'500	32.91	SE
2023-10-03	16:14:57	1'500	32.77	SE	2023-10-04	13:31:14	1,500	32.89	SE
2023-10-03	16:14:58	1'500	32.77	SE	2023-10-04	13:36:45	1'500	32.89	SE
2023-10-03	16:15:03	1'500	32.77	SE	2023-10-04	13:44:39	1'500	32.89	SE
2023-10-03	16:15:07	1'500	32.76	SE	2023-10-04	13:55:00	1'500	32.88	SE
2023-10-03	16:15:08	1'500	32.76	SE	2023-10-04	14:03:34	1,500	32.92	SE
2023-10-03	16:15:13	2'000	32.76	SE	2023-10-04	14:09:31	1'500	32.87	SE
2023-10-03	16:15:14	2'000	32.76	SE	2023-10-04	14:19:06	1'500	32.86	SE

2023-10-04	14:28:33	1,500	32.86	SE
2023-10-04	14:37:08	1,500	32.91	SE
2023-10-04	14:46:26	1,500	32.94	SE
2023-10-04	14:54:15	1,500	32.92	SE
2023-10-04	15:35:03	1,500	32.77	SE
2023-10-04	15:35:04	1,500	32.77	SE
2023-10-04	15:35:05	1,500	32.77	SE
2023-10-04	15:35:06	1,500	32.77	SE
2023-10-04	15:35:06	1,500	32.77	SE
2023-10-04	15:35:46	1,500	32.76	SE
2023-10-04	15:35:46	1,500	32.76	SE
2023-10-04	15:45:16	1,500	32.76	SE
2023-10-04	15:45:21	1,500	32.75	SE
2023-10-04	15:47:26	1,500	32.73	SE
2023-10-04	15:53:42	1,500	32.75	SE
2023-10-04	15:55:53	1,500	32.77	SE
2023-10-04	16:00:18	1,500	32.71	SE
2023-10-04	16:04:18	1,500	32.65	SE
2023-10-04	16:08:45	1,500	32.59	SE
2023-10-04	16:13:12	1,500	32.63	SE
2023-10-04	16:17:29	1,500	32.57	SE
2023-10-04	16:22:04	1,500	32.56	SE
2023-10-04	16:26:09	1,500	32.61	SE
2023-10-04	16:29:58	1,500	32.53	SE
2023-10-04	16:34:23	1,500	32.61	SE
2023-10-04	16:38:34	1,500	32.63	SE
2023-10-04	16:42:43	1,500	32.61	SE
2023-10-04	16:46:32	1,500	32.56	SE
2023-10-04	16:52:13	1,500	32.55	SE