STMicroelectronics N.V. (STM) published its latest share buyback update on October 12. The release covers trading from October 5 to October 9, 2026. The chipmaker bought 346,538 ordinary shares in that window, equal to 0.04% of its issued share capital.

The total cost was EUR 17,064,401.16. The weighted average price was EUR 49.2425 per share. The shares trade on Euronext Paris and on the NYSE under the ticker STM. The program was announced on June 21, 2024, after shareholder approval on May 22, 2024.

The daily figures tell a clearer story than the weekly total. The company bought 60,000 shares on October 5 at an average of EUR 50.4548. On October 6 it bought 46,538 shares at EUR 51.7449. That was the smallest daily amount and the highest price of the week.

The pattern then reverses. Purchases rose to 65,000 shares on October 7, 90,000 on October 8, and 85,000 on October 9. The average price paid on October 9 was EUR 47.2594.

Our calculations show the average price paid fell 8.7% between October 6 and October 9 (as calculated by Trend & Ticker). Daily buying rose about 83% over the same span, from 46,538 shares to 85,000 (as calculated by Trend & Ticker).

The largest single day came on October 8. That day's buys totaled EUR 4,343,292, the biggest outlay of the week. The average price paid that day sat 4.0% below the October 7 level (as calculated by Trend & Ticker). The company stepped up purchases as the price dropped.

Spread across five trading days, the buyback averaged 69,308 shares a day (as calculated by Trend & Ticker). Treasury shares now total 15,930,103, roughly 1.7% of capital.

The release does not state the size of the current program. That means this update cannot show how much authorization remains. The next weekly filing will show whether daily purchases hold near 85,000 shares or drop back toward the early-week pace.