ABB Ltd: ABB share buybacks – September 3, 2026 – September 9, 2026

Zurich, Switzerland, september 10, 2026

ABB share buybacks

September 3, 2026 – September 9, 2026

During the period September 3, 2026, to September 9, 2026, ABB repurchased a total of 476,918 shares as part of its share buyback program announced on February 6, 2026.

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)
3-Sep-2026	103,100	77.2483	7,964,295.40
4-Sep-2026	53,818	77.4506	4,168,238.76
7-Sep-2026	81,000	78.8882	6,389,945.01
8-Sep-2026	86,000	79.9734	6,877,712.57
9-Sep-2026	153,000	79.2417	12,123,974.13

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 9, 2026, to and including September 9, 2026, is 8,235,895 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/2026

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

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)