CARIBOU BIOSCIENCES INC

Ticker: CRBU CUSIP: 142038108 Class: COM

Jefferies Financial Group Inc.'s Holding History (CIK: 0000096223)

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

Q4 2025

Shares 44,840 Value ($000) $71 Avg Close $2.10 Range $1.55 - $3.54

Q3 2025

Shares 47,200 Value ($000) $110 Avg Close $1.89 Range $1.22 - $2.66

Q4 2023

Shares 20,000 Value ($000) $115 Avg Close $4.94 Range $3.44 - $6.50

Q3 2023

Shares 300,000 Value ($000) $1,434 Avg Close $6.20 Range $4.01 - $8.59

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	44,840	$71	$2.10	$1.55 - $3.54
Q3 2025	47,200	$110	$1.89	$1.22 - $2.66
Q4 2023	20,000	$115	$4.94	$3.44 - $6.50
Q3 2023	300,000	$1,434	$6.20	$4.01 - $8.59