OUSTER INC

Ticker: OUST CUSIP: 68989M202 Class: Common Stock

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

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

Q4 2025

Shares 45,394 Value ($000) $982 Avg Close $26.42 Range $18.52 - $41.65

Q3 2025

Shares 117,666 Value ($000) $3,183 Avg Close $27.89 Range $20.32 - $36.25

Q1 2025

Shares 45,342 Value ($000) $407 Avg Close $9.87 Range $7.28 - $15.87

Q4 2024

Shares 133,435 Value ($000) $1,631 Avg Close $8.79 Range $5.94 - $13.93

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	45,394	$982	$26.42	$18.52 - $41.65
Q3 2025	117,666	$3,183	$27.89	$20.32 - $36.25
Q1 2025	45,342	$407	$9.87	$7.28 - $15.87
Q4 2024	133,435	$1,631	$8.79	$5.94 - $13.93