4 Form 4 filings for ASPE between 2026-11-02 and 2026-11-02, from 4 filers. 4 discretionary (0 sales, 2 purchases). 2 of 4 carry a dollar total (2 stated, 0 computed as shares × price), summing to $37,999,995; 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. Prices ran $15 to $15.

Filings 4 Filers 4 Discretionary 4 Routine 0 Structured 4/4

▸ARCH Venture Partners X, L.P.10% Owner 2026-11-02 · purchased (open market) 1,200,000 @ $15.00 for $19,999,995 TOTAL BOUGHT ≥ $19,999,9951 filing

Filed	Action	Shares largest txn	Price	Filing total	Txns	SEC
2026-11-02	purchased (open market)	1,200,000	$15.00	$19,999,995	12	RECEIPT ↗

▸ARCH Venture Partners XIV, LLC10% Owner 2026-11-02 · purchased (open market) 1,200,000 @ $15.00 for $18,000,000 TOTAL BOUGHT ≥ $18,000,0001 filing

Filed	Action	Shares largest txn	Price	Filing total	Txns	SEC
2026-11-02	purchased (open market)	1,200,000	$15.00	$18,000,000	1	RECEIPT ↗

▸Spaventa AndrewDirector 2026-11-02 · converted (derivative) 180,221 1 filing

Filed	Action	Shares largest txn	Price	Filing total	Txns	SEC
2026-11-02	converted (derivative)	180,221	—	—	2	RECEIPT ↗

▸Hasnain FaheemExecutive Chair 2026-11-02 · converted (derivative) 14,913 1 filing

Filed	Action	Shares largest txn	Price	Filing total	Txns	SEC
2026-11-02	converted (derivative)	14,913	—	—	3	RECEIPT ↗

4 filers · 4 filings · disclosed filing totals sum to $37,999,995 (2/4 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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