SERA PROGNOSTICS INC

Ticker: SERA CUSIP: 81749D107 Class: CLASS A COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q1 2025

Shares 400 Value ($000) $1 Avg Close $5.09 Range $3.33 - $8.73

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	400	$1	$5.09	$3.33 - $8.73