ZENAS BIOPHARMA INC

Ticker: ZBIO CUSIP: 98937L105 Class: Common Stock

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

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

Q3 2025

Shares 1,562,942 Value ($000) $34,697 Avg Close $16.28 Range $8.91 - $22.45

Q2 2025

Shares 1,562,942 Value ($000) $15,145 Avg Close $9.74 Range $6.11 - $12.56

Q1 2025

Shares 1,562,942 Value ($000) $12,347 Avg Close $7.83 Range $5.83 - $10.95

Q4 2024

Shares 1,562,942 Value ($000) $12,800 Avg Close $15.60 Range $7.79 - $26.25

Q3 2024

Shares 1,562,942 Value ($000) $26,445 Avg Close $17.98 Range $16.35 - $20.50

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	1,562,942	$34,697	$16.28	$8.91 - $22.45
Q2 2025	1,562,942	$15,145	$9.74	$6.11 - $12.56
Q1 2025	1,562,942	$12,347	$7.83	$5.83 - $10.95
Q4 2024	1,562,942	$12,800	$15.60	$7.79 - $26.25
Q3 2024	1,562,942	$26,445	$17.98	$16.35 - $20.50