EXAGEN INC

Ticker: XGN CUSIP: 30068X103 Class: COM

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 243,424 Value ($000) $1,480 Avg Close $9.10 Range $5.84 - $12.23

Q3 2025

Shares 24,632 Value ($000) $271 Avg Close $8.86 Range $6.57 - $11.17

Q1 2025

Shares 106,559 Value ($000) $383 Avg Close $3.77 Range $2.67 - $5.70

Q4 2024

Shares 16,048 Value ($000) $66 Avg Close $3.60 Range $2.38 - $6.22

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	243,424	$1,480	$9.10	$5.84 - $12.23
Q3 2025	24,632	$271	$8.86	$6.57 - $11.17
Q1 2025	106,559	$383	$3.77	$2.67 - $5.70
Q4 2024	16,048	$66	$3.60	$2.38 - $6.22