Qing Bill Sun

Insider

First SEC filing: Oct. 1, 2025 · Latest: Oct. 1, 2025

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Insider at

4 buys (P) 0 sells (S) Net: $5,403,750 Avg return of open purchases vs now: 2.5% last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Oct. 9, 2025	YCY	P	13,125	$10.00	$131,250	180,125 Indirect	+7.86%	Acquired	2.5% (price as of 2026-08-19)
Oct. 9, 2025	YCY	P	26,250	$10.00	$262,500	3,235,250 Indirect	+0.82%	Acquired	2.5% (price as of 2026-08-19)
Oct. 2, 2025	YCY	P	167,000	$10.00	$1,670,000	334,000 Indirect	+100.00%	Acquired	2.5% (price as of 2026-08-19)
Oct. 2, 2025	YCY	P	334,000	$10.00	$3,340,000	3,209,000 Indirect	+11.62%	Acquired	2.5% (price as of 2026-08-19)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Oct. 9, 2025	YCY	Private Placement Warrants	Class A ordinary shares (13,125)	—	—	13,125	Acquired
Oct. 2, 2025	YCY	Private Placement Warrants	Class A ordinary shares (167,000)	—	—	167,000	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Oct. 1, 2025	YCY	Class B Ordinary Shares, par value $0.0001 per share	2,875,000	Indirect