$YHC 4 SEC Filings

Filed On	Filing
19 Dec 2025	Form 4: Lu Yilin, Director Received 179 shares by exercise or conversion · Bought 2,000,000 shares ($1.8M)
02 Oct 2025	Form 4: Yeung Hong Chun, Director Received 179 shares by exercise or conversion
02 Oct 2025	Form 4: Chen Lijun, Director Received 179 shares by exercise or conversion
02 Oct 2025	Form 4: Lu Jing, Director Received 179 shares by exercise or conversion
02 Oct 2025	Form 4: Dollinger Sean, Director Received 90 shares by exercise or conversion
02 Oct 2025	Form 4: Lu Yilin, Director Received 179 shares by exercise or conversion
22 Jul 2025	Form 4: Leshner Robert, No longer 10% Owner Holds 592,736 shares of Common stock
21 Jul 2025	Form 4: Lambeth George Patrick, 10% owner Sold 180,000 shares ($546K)
02 Jul 2025	Form 4: Lu Jing, Director Received 179 shares by exercise or conversion
02 Jul 2025	Form 4: Lu Yilin, Director Received 179 shares by exercise or conversion
02 Jul 2025	Form 4: Chen Lijun, Director Received 179 shares by exercise or conversion
02 Jul 2025	Form 4: Yeung Hong Chun, Director Received 179 shares by exercise or conversion
02 Jul 2025	Form 4: Dollinger Sean, Director Received 89 shares by exercise or conversion
07 Apr 2025	Form 4: Lazar David E., Director Received 100,000 shares as a grant or award
02 Apr 2025	Form 4: O'Brien James P., Director Received 156 shares by exercise or conversion
02 Apr 2025	Form 4: Dollinger Sean, Director Received 3,125 shares by exercise or conversion
02 Apr 2025	Form 4: Lu Jing, Director Received 6,250 shares by exercise or conversion
02 Apr 2025	Form 4: Chen Lijun, Director Received 6,250 shares by exercise or conversion
02 Apr 2025	Form 4: Yeung Hong Chun, Director Received 6,250 shares by exercise or conversion
02 Apr 2025	Form 4: Lu Yilin, Director Received 6,250 shares by exercise or conversion

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