Ying Huang

Insider

First SEC filing: March 18, 2026 · Latest: March 18, 2026

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Insider at

0 buys (P) 1 sells (S) Net: $-82,265 + 1 non-open-market transaction below 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

1 other filing hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 30, 2026	LEGN	G	3,382	—	—	238,490 Direct	-1.40%	Disposed	(price as of 2026-08-21)
June 25, 2026	LEGN	S	5,566	$14.78	$82,265	241,872 Direct	-2.25%	Disposed	47.3% (price as of 2026-08-21)

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.

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

Date	Ticker	Security	Shares	Ownership
Aug. 4, 2026	TCGX	Class B Ordinary Shares→ Class A Ordinary Shares (30,000)	30,000	Direct
March 18, 2026	LEGN	Ordinary Shares [F1]	257,374	Direct
March 18, 2026	LEGN	Share Option (right to buy)→ Ordinary Shares (81,788)	81,788	Direct
March 18, 2026	LEGN	Share Option (right to buy)→ Ordinary Shares (3,636)	3,636	Direct
March 18, 2026	LEGN	Share Option (right to buy)→ Ordinary Shares (4,248)	4,248	Direct
March 18, 2026	LEGN	Share Option (right to buy)→ Ordinary Shares (35,728)	35,728	Direct
March 18, 2026	LEGN	Share Option (right to buy)→ Ordinary Shares (121,746)	121,746	Direct
March 18, 2026	LEGN	Share Option (right to buy)→ Ordinary Shares (92,134)	92,134	Direct
March 18, 2026	LEGN	Share Option (right to buy)→ Ordinary Shares (185,340)	185,340	Direct
March 18, 2026	LEGN	Share Option (right to buy)→ Ordinary Shares (55,752)	55,752	Direct