5 Form 4 filings for BBTX between 2026-11-02 and 2026-11-03, from 5 filers. 4 discretionary (0 sales, 0 purchases), 1 routine grant or withholding filing. 3 of 5 carry a dollar total (3 stated, 0 computed as shares × price), summing to $58,639,957; a multi-transaction filing without a stated total contributes only its largest transaction, so the sum is a floor and the true figure is higher.

Filings 5 Filers 5 Discretionary 4 Routine 1 Structured 5/5

▸RA Capital Nexus Fund III, L.P.Director 2026-11-03 · converted (derivative) 3,144,858 for $46,639,957 1 filing

Filed	Action	Shares largest txn	Price	Filing total	Txns	SEC
2026-11-03	converted (derivative)	3,144,858	—	$46,639,957	6	RECEIPT ↗

▸Salvia Investment GmbH10% Owner 2026-11-02 · converted (derivative) 4,769,701 for $6,000,000 1 filing

Filed	Action	Shares largest txn	Price	Filing total	Txns	SEC
2026-11-02	converted (derivative)	4,769,701	—	$6,000,000	2	RECEIPT ↗

▸Jeggle Helmut WolfgangDirector 2026-11-02 · converted (derivative) 4,769,701 for $6,000,000 1 filing

Filed	Action	Shares largest txn	Price	Filing total	Txns	SEC
2026-11-02	converted (derivative)	4,769,701	—	$6,000,000	2	RECEIPT ↗

▸MiNeng, Inc.See remarks 2026-11-02 · converted (derivative) 147,238 1 filing

Filed	Action	Shares largest txn	Price	Filing total	Txns	SEC
2026-11-02	converted (derivative)	147,238	—	—	2	RECEIPT ↗

▸Xu ShanshanSee remarks 2026-11-02 · received (award/grant) 758,204 1 filing

Filed	Action	Shares largest txn	Price	Filing total	Txns	SEC
2026-11-02	received (award/grant)	758,204	—	—	2	RECEIPT ↗

5 filers · 5 filings · disclosed filing totals sum to $58,639,957 (3/5 state one, 0 computed; totals are proceeds with a floor, never profit — a Form 4 states what was traded, not what it cost the filer)

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