Harmony Gold Mining Co Ltd

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a­16 OR 15d­16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

Randfontein Office Park Corner Main Reef Road and Ward Avenue Randfontein, 1759 South Africa (Address of principal executive offices) *-­ (Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20­ F or Form 40­F.)

(Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3­2(b) under the Securities Exchange Act of 1934.)

Harmony Gold Mining Company Ltd Registration number: 1950/038232/06 Incorporated in the Republic of South Africa ISIN: ZAE000015228 JSE share code: HAR ("Harmony"or the"company")

DEALING IN SECURITIES BY DIRECTORS AND PRESCRIBED OFFICERS: VESTING OF SHARES AND SETTLEMENT BY ON MARKET SALES AND EQUITY SETTLEMENT

Johannesburg, Wednesday, 7 October 2026 . In compliance with paragraphs 6.77 to 6.80 of the JSE Listings Requirements, the following dealings in securities by directors and prescribed officers of Harmony in relation to the vesting and settlement of deferred share awards made pursuant to the provisions of the Harmony Deferred Share Plan 2018 are disclosed:

Designation: Group Chief Executive Officer

Nature of transaction: Vesting of deferred share awards and on-market sale of shares, in terms of the Harmony Deferred Share Plan 2018 Vesting Date: 18 September 2026 Class of securities: Ordinary shares

Number of ordinary shares vested: 160,992 Number of ordinary shares retained for minimum shareholding requirement: 36,928 Date of transaction: 2 October 2026 Number of shares retained in own name: 0 Number of vested shares sold: 124,064 Highest price per share: R295.29 Lowest price per share: R287.00 Volume weighted average price per share: R290.4505 Total value of shares: R36,034,450.83

Nature and extent of director's interest: Direct beneficial

Nature of transaction: Vesting of deferred share awards and on-market sale of shares, in terms of the Harmony Deferred Share Plan 2018 Vesting Date: 18 September 2026 Class of securities: Ordinary shares

Number of ordinary shares vested: 157,482 Number of ordinary shares retained for minimum shareholding requirement: 38,433 Date of transaction: 2 October 2026 Number of shares retained in own name: 43,130 Number of vested shares sold: 75,919 Highest price per share: R295.29 Lowest price per share: R287.00 Volume weighted average price per share: R290.4505 Total value of shares: R22,050,711.51

Nature and extent of director's interest: Direct beneficial

Nature of transaction: Vesting of deferred share awards and on-market sale of shares, in terms of the Harmony Deferred Share Plan 2018 Vesting Date: 18 September 2026 Class of securities: Ordinary shares

Number of ordinary shares vested: 125,250 Number of ordinary shares retained for minimum shareholding requirement: 30,801 Date of transaction: 2 October 2026 Number of shares retained in own name: 2,817 Number of vested shares sold: 91 632 Highest price per share: R295.29 Lowest price per share: R287.00 Volume weighted average price per share: R290.4505 Total value of shares: R26,614,560.22

Nature and extent of prescribed officer's interest: Direct beneficial

Designation: Chief Operating Officer Australasia

Nature of transaction: Vesting of deferred share awards and on-market sale of shares, in terms of the Harmony Deferred Share Plan 2018 Vesting Date: 18 September 2026 Class of securities: Ordinary shares

Number of ordinary shares vested: 34,129 Number of ordinary shares retained for minimum shareholding requirement: 3,365 Date of transaction: 2 October 2026 Number of shares retained in own name: 0 Number of vested shares sold: 30 764 Highest price per share: R295.29 Lowest price per share: R287.00 Volume weighted average price per share: R290.4505 Total value of shares: R8,935,419.18

Nature and extent of prescribed officer's interest: Direct beneficial

Nature of transaction: Vesting of deferred share awards and on-market sale of shares, in terms of the Harmony Deferred Share Plan 2018 Vesting Date: 18 September 2026 Class of securities: Ordinary shares

Number of ordinary shares vested: 38,106 Number of ordinary shares retained for minimum shareholding requirement: 18,516 Date of transaction: 2 October 2026 Number of shares retained in own name: 7,140 Number of vested shares sold: 12,450 Highest price per share: R295.29 Lowest price per share: R287.00 Volume weighted average price per share: R290.4505 Total value of shares: R3,616,108.73

Nature and extent of prescribed officer's interest: Direct beneficial

Designation: Chief Sustainability Officer

Nature of transaction: Vesting of deferred share awards and on-market sale of shares, in terms of the Harmony Deferred Share Plan 2018 Vesting Date: 18 September 2026 Class of securities: Ordinary shares

Number of ordinary shares vested: 4,078 Number of ordinary shares retained for minimum shareholding requirement: 2,039 Date of transaction: 2 October 2026 Number of shares retained in own name: 1,091 Number of vested shares sold: 948 Highest price per share: R295.29 Lowest price per share: R287.00 Volume weighted average price per share: R290.4505

Nature and extent of prescribed officer's interest: Direct beneficial

Designation: Deputy Group Chief Executive Officer

Nature of transaction: Vesting of deferred share awards and on-market sale of shares, in terms of the Harmony Deferred Share Plan 2018 Vesting Date: 18 September 2026 Class of securities: Ordinary shares

Number of ordinary shares vested: 15,425 Number of ordinary shares retained for minimum shareholding requirement: 2,736 Date of transaction: 2 October 2026 Number of shares retained in own name: 6,788 Number of vested shares sold: 5 901 Highest price per share: R295.29 Lowest price per share: R287.00 Volume weighted average price per share: R290.4505

Nature and extent of prescribed officer's interest: Direct beneficial

Nature of transaction: Vesting of deferred share awards and on-market sale of shares, in terms of the Harmony Deferred Share Plan 2018 Vesting Date: 18 September 2026 Class of securities: Ordinary shares

Number of ordinary shares vested: 96,835 Number of ordinary shares retained for minimum shareholding requirement: 28,331 Date of transaction: 2 October 2026 Number of shares retained in own name: 36,648 Number of vested shares sold: 31,856 Highest price per share: R295.29 Lowest price per share: R287.00 Volume weighted average price per share: R290.4505 Total value of shares: R9,252,591.13

Nature and extent of prescribed officer's interest: Direct beneficial

Nature of transaction: Vesting of deferred share awards and on-market sale of shares, in terms of the Harmony Deferred Share Plan 2018 Vesting Date: 18 September 2026 Class of securities: Ordinary shares

Number of ordinary shares vested: 150,754 Number of ordinary shares retained for minimum shareholding requirement: 37,219 Date of transaction 2 October 2026 Number of shares retained in own name: 0 Number of vested shares sold: 113,535 Highest price per share: R295.29 Lowest price per share: R287.00 Volume weighted average price per share: R290.4505 Total value of shares: R32,976,297.52

Nature and extent of prescribed officer's interest: Direct beneficial

Nature of transaction: Vesting of deferred share awards and on-market sale of shares, in terms of the Harmony Deferred Share Plan 2018 Vesting Date: 18 September 2026 Class of securities: Ordinary shares

Number of ordinary shares vested: 18,722 Date of transaction 2 October 2026 Number of shares retained in own name: 10,016 Number of vested shares sold 8,706 Highest price per share: R295.29 Lowest price per share: R287.00 Volume weighted average price per share R290.4505 Total value of shares: R2,528,662.05

Nature and extent of company secretary's interest: Direct beneficial