$BLSM 4 SEC Filings

Filed On	Filing
12 Aug 2026	Form 4: Gordon Carl L, Director Received 2,089,279 shares by conversion · Bought 625,000 shares ($10M)
12 Aug 2026	Form 4: Orbimed Advisors Llc, Director and 1 other Received 2,089,279 shares by conversion · Bought 625,000 shares ($10M)
10 Aug 2026	Form 4: Schmid John P., Director Bought 6,000 shares ($96K)
10 Aug 2026	Form 4: Gordon Carl L, Director Granted 23,904 Director Stock Option (Right to Buy)
10 Aug 2026	Form 4: Chen Bihua, Director and 5 others Granted 23,904 Director Stock Option (Right to Buy) · Received 3,301,534 shares by conversion · Bought 312,500 shares ($5M)
10 Aug 2026	Form 4: Agrawal Sundeep, Director Granted 23,904 Director Stock Option (Right to Buy) · Received 578,524 shares by conversion
10 Aug 2026	Form 4: Li Yishan, Director Granted 112,701 Employee Stock Option (Right to Buy) · Received 1,838,896 shares by conversion
10 Aug 2026	Form 4: Cui Jingrong Jean, Director Granted 676,205 Employee Stock Option (Right to Buy) · Received 1,838,896 shares by conversion
10 Aug 2026	Form 4: Keyes Jason A, Chief Financial Officer Granted 56,746 Employee Stock Option (Right to Buy) · Bought 700 shares ($11.2K)
10 Aug 2026	Form 4: Liptak Vincent Paul, General Counsel Granted 46,561 Employee Stock Option (Right to Buy) · Bought 2,500 shares ($39.5K) · Bought 2,200 shares ($35.2K) · 1 more
10 Aug 2026	Form 4: Oxnard Geoffrey Raymond, Chief Medical Officer Granted 61,783 Employee Stock Option (Right to Buy)

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