Treasury share acquisition: results report

What happened

Treasury Share Acquisition Results Report / Mirae Asset Securities Co., Ltd.

To the Governor of the Financial Supervisory Service July 8, 2026 Company name: Mirae Asset Securities Co., Ltd. CEO: Kim Mi-sub, Heo Seon-ho Head office: Mirae Asset Center One Building, East Tower, 26 Euljiro 5-gil, Jung-gu, Seoul (Suha-dong) Phone: 02-1588-6800; Website: http://securities.miraeasset.com Preparer: Title Head of Management Innovation Division, Name Kim Jeom-su, Phone 02-1588-6800

1. Name and address of issuer a. Name: Mirae Asset Securities Co., Ltd. b. Address: Mirae Asset Center One Building, East Tower, 26 Euljiro 5-gil, Jung-gu, Seoul (Suha-dong)

2. Acquisition report details a. Material event report filing date: June 17, 2026 b. Acquisition period: June 18, 2026 to July 6, 2026 (based on execution/trade date)

3. Acquisition details (price per share and total value exclude fees)

(1) Common shares (Unit: KRW, shares) - date / order / acquired / price per share / total value / broker (ID): 2026.06.18: 100,000 / 100,000 / 50,796 / 5,079,691,350 / Mirae Asset Securities (00111722) 2026.06.19: 100,000 / 100,000 / 49,041 / 4,904,114,600 / Mirae Asset Securities (00111722) 2026.06.22: 200,000 / 200,000 / 46,180 / 9,236,111,050 / Mirae Asset Securities (00111722) 2026.06.23: 350,000 / 350,000 / 44,223 / 15,478,217,950 / Mirae Asset Securities (00111722) 2026.06.24: 500,000 / 500,000 / 41,868 / 20,934,160,650 / Mirae Asset Securities (00111722) 2026.06.25: 800,000 / 800,000 / 43,809 / 35,047,691,975 / Mirae Asset Securities (00111722) 2026.06.26: 800,000 / 800,000 / 40,322 / 32,258,130,250 / Mirae Asset Securities (00111722) 2026.06.29: 800,000 / 800,000 / 42,519 / 34,015,756,850 / Mirae Asset Securities (00111722) 2026.06.30: 800,000 / 800,000 / 43,523 / 34,818,903,975 / Mirae Asset Securities (00111722) 2026.07.01: 180,000 / 180,000 / 43,980 / 7,916,538,925 / Mirae Asset Securities (00111722) 2026.07.02: 7,117 / 7,117 / 40,670 / 289,451,100 / Mirae Asset Securities (00111722) 2026.07.03: 528 / 528 / 40,150 / 21,199,200 / Mirae Asset Securities (00111722) Total: order 4,637,645, acquired 4,637,645; average price KRW 43,125/share; total KRW 199,999,967,875

(2) 1st preferred shares (Mirae Asset Securities 1P) (Unit: KRW, shares): 2026.06.18: 20,000 / 20,000 / 16,844 / 336,894,770 / Mirae Asset Securities (00111722) 2026.06.19: 20,000 / 20,000 / 16,495 / 329,905,170 / Mirae Asset Securities (00111722) 2026.06.22: 40,000 / 40,000 / 15,810 / 632,425,810 / Mirae Asset Securities (00111722) 2026.06.23: 65,300 / 65,300 / 15,532 / 1,014,281,860 / Mirae Asset Securities (00111722) 2026.06.24: 65,000 / 65,000 / 15,486 / 1,006,638,800 / Mirae Asset Securities (00111722) 2026.06.25: 65,000 / 65,000 / 16,124 / 1,048,111,670 / Mirae Asset Securities (00111722) 2026.06.26: 65,000 / 65,000 / 15,393 / 1,000,587,870 / Mirae Asset Securities (00111722) 2026.06.29: 65,000 / 65,000 / 16,174 / 1,051,370,835 / Mirae Asset Securities (00111722) 2026.06.30: 65,000 / 65,000 / 16,687 / 1,084,686,870 / Mirae Asset Securities (00111722) 2026.07.01: 65,000 / 65,000 / 17,130 / 1,113,477,180 / Mirae Asset Securities (00111722) 2026.07.02: 65,000 / 65,000 / 16,126 / 1,048,215,320 / Mirae Asset Securities (00111722) 2026.07.03: 21,317 / 21,317 / 15,640 / 333,397,880 / Mirae Asset Securities (00111722) Total: order 621,617, acquired 621,617; average price KRW 16,087/share; total KRW 9,999,994,035

(3) 2nd preferred shares (Mirae Asset Securities 2P-B) (Unit: KRW, shares): 2026.06.18: 200,000 / 142,536 / 15,404 / 2,195,729,370 / Mirae Asset Securities (00111722) 2026.06.19: 200,000 / 200,000 / 15,024 / 3,004,875,630 / Mirae Asset Securities (00111722) 2026.06.22: 400,000 / 400,000 / 14,432 / 5,772,883,470 / Mirae Asset Securities (00111722) 2026.06.23: 600,000 / 600,000 / 13,770 / 8,262,309,230 / Mirae Asset Securities (00111722) 2026.06.24: 600,000 / 600,000 / 13,373 / 8,023,954,280 / Mirae Asset Securities (00111722) 2026.06.25: 600,000 / 600,000 / 13,946 / 8,367,945,130 / Mirae Asset Securities (00111722) 2026.06.26: 600,000 / 600,000 / 13,400 / 8,040,136,750 / Mirae Asset Securities (00111722) 2026.06.29: 600,000 / 600,000 / 14,548 / 8,729,295,810 / Mirae Asset Securities (00111722) 2026.06.30: 600,000 / 600,000 / 14,958 / 8,974,806,010 / Mirae Asset Securities (00111722) 2026.07.01: 600,000 / 600,000 / 15,032 / 9,019,766,480 / Mirae Asset Securities (00111722) 2026.07.02: 640,000 / 640,000 / 14,018 / 8,971,976,410 / Mirae Asset Securities (00111722) 2026.07.03: 640,000 / 640,000 / 14,057 / 8,996,861,030 / Mirae Asset Securities (00111722) 2026.07.06: 115,536 / 115,536 / 14,190 / 1,639,455,840 / Mirae Asset Securities (00111722) Total: order 6,395,536, acquired 6,338,072; average price KRW 14,200/share; total KRW 89,999,995,440

4. Whether the planned acquisition matches the actual acquisition Common shares: planned amount KRW 200,000,000,000, actual value KRW 199,999,967,875; Other shares: planned amount KRW 100,000,000,000, actual value KRW 99,999,989,475; Match: Match; reason for difference: - Note: The planned amount for "other shares" is the sum of KRW 10 billion (1st preferred, Mirae Asset Securities 1P) and KRW 90 billion (2nd preferred, Mirae Asset Securities 2P-B). Note: The actual total value for "other shares" is the sum of KRW 9,999,994,035 (1st preferred) and KRW 89,999,995,440 (2nd preferred). Note: The acquisition was completed as close as possible to the planned amount in the Material Event Report disclosed on 2026.06.17; the difference between planned and actual amounts for both common and other shares is less than the price of one share.

5. Treasury shares held after acquisition [as of July 8, 2026] (Unit: KRW million, shares, %) Common shares: (A) quantity 124,884,330, ratio 22.32%, total value KRW 418,687 million; (B) -; Total (A+B): quantity 124,884,330, ratio 22.32%, amount KRW 418,687 million Other shares: (A) quantity 14,070,427, ratio 9.34%, total value KRW 144,977 million; (B) -; Total (A+B): quantity 14,070,427, ratio 9.34%, amount KRW 144,977 million Total: quantity 138,954,757, ratio 19.57%, total value KRW 563,664 million; Total (A+B): quantity 138,954,757, ratio 19.57%, amount KRW 563,664 million Note: "Other shares" above is the total preferred share quantity: 4,841,577 shares of 1st preferred (Mirae Asset Securities 1P) and 9,228,850 shares of 2nd preferred (Mirae Asset Securities 2P-B). Note: Quantities held for trading or other financial investment business purposes are excluded.

6. Changes in the largest shareholder's shareholding before and after acquisition [as of July 8, 2026] (Unit: shares) Mirae Asset Capital Co., Ltd.: Common shares; before 190,256,629; after 190,256,629; reason -. Other shares; before 6,000,000; after 6,000,000; reason -. Total: Common shares 190,256,629 / 190,256,629; Other shares 6,000,000 / 6,000,000. Grand total: 196,256,629 / 196,256,629; reason -. Note: "Other shares" refers to 2nd preferred shares (Mirae Asset Securities 2P-B). Note: The "common shares" quantity on the acquisition report date reflects the additional 957,671 shares acquired by Mirae Asset Capital, based on the execution/trade date (2026.06.15-2026.06.17). [Disclosure reference: Mirae Asset Capital's "Capital Contribution to a Related Party" (2026.06.19)]