Wang Chia Yuan

• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings

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Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	Company	B/S Transaction type	Nb. shares Price Value	Number of shares	Price	Value
2026-06-03	2026-06-02	Gerdau SA (GGBR4)	S Sale	75,798 +22.7% 175.81 US$459,773	75,798 +22.7%	175.81	US$459,773
2026-05-07	2026-05-05	Gerdau SA (GGBR4)	S Sale	80,562 +11.9% 182.07 US$1,382,488	80,562 +11.9%	182.07	US$1,382,488
2026-05-04	2026-04-30	Gerdau SA (GGBR4)	S Sale	20,840 -2.2% 159.81 US$4,005,901	20,840 -2.2%	159.81	US$4,005,901
2026-04-30	2026-04-28	Gerdau SA (GGBR4)	S Sale	76,700 -45.4% 4.49 US$344,383	76,700 -45.4%	4.49	US$344,383
2026-04-14	2026-04-10	Gerdau SA (GGBR4)	S Sale	25,000 -12.9% 4.21 US$105,250	25,000 -12.9%	4.21	US$105,250
2026-04-10	2026-04-08	Gerdau SA (GGBR4)	S Sale	34,000 -14.9% 4.00 US$136,000	34,000 -14.9%	4.00	US$136,000