SEPTERNA INC

Ticker: SEPN CUSIP: 81734D104 Class: Common Stock

PRIMECAP MANAGEMENT CO/CA/'s Holding History (CIK: 0000763212)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 546,100 Value ($000) $15,225 Avg Close $23.88 Range $17.55 - $30.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	546,100	$15,225	$23.88	$17.55 - $30.50