ZTO Express (Cayman) Inc.

ZTO Express (Cayman) Inc. filed its monthly return on movements in securities for May 2026, reporting the repurchase of 1,461,268 Class A ordinary shares, represented by American Depositary Shares. These shares were repurchased from the New York Stock Exchange and are currently pending cancellation. The company's authorized and issued share capital for both Class A and Class B ordinary shares remained stable during the month. ZTO Express also noted outstanding Convertible Senior Notes due in 2027 and 2031.

ZTO Express (Cayman) Inc. disclosed a series of share repurchases of its American Depositary Shares (ADSs) between May 20 and May 29, 2026. The company repurchased a total of 1,451,604 ADSs, representing Class A ordinary shares, as part of its ongoing buyback program. The repurchases were executed at varying prices, ranging from $22.50 to $22.86 per ADS.

ZTO Express (Cayman) Inc. announced share repurchases totaling 351,425 American depositary shares (ADSs) over two days. On May 20, 2026, the company repurchased 131,796 ADSs for approximately $3.01 million at an average price of $22.86. The following day, May 21, 2026, an additional 219,629 ADSs were repurchased for approximately $4.99 million at an average price of $22.75. These repurchases represent 0.02% and 0.03% of the company's total issued and outstanding shares, respectively.

ZTO Express (Cayman) Inc. filed its monthly return for April 2026, confirming no changes in its authorized or issued share capital for the month. The company also announced adjustments to the conversion rates of its Convertible Senior Notes due 2027 and 2031. These adjustments were made in accordance with the terms of the notes, following a cash dividend of USD0.39 per American depositary share and ordinary share.

ZTO Express (Cayman) Inc. filed a Form 6-K to announce the date of its Board Meeting. The filing indicates that the company will hold a board meeting, as detailed in Exhibit 99.1.