SEPTERNA INC

Ticker: SEPN CUSIP: 81734D104 Class: Common Stock

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q2 2025

Shares 23,525 Value ($000) $0 Avg Close $8.24 Range $4.66 - $11.36

Q1 2025

Shares 30 Value ($000) $0 Avg Close $11.42 Range $4.17 - $23.85

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	23,525	$0	$8.24	$4.66 - $11.36
Q1 2025	30	$0	$11.42	$4.17 - $23.85