ZENAS BIOPHARMA INC

Ticker: ZBIO CUSIP: 98937L105 Class: Common Stock

FMR LLC's Holding History (CIK: 0000315066)

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

Q4 2025

Shares 7,704,255 Value ($000) $279,742 Avg Close $32.89 Range $18.33 - $44.60

Q3 2025

Shares 4,820,370 Value ($000) $107,012 Avg Close $16.28 Range $8.91 - $22.45

Q2 2025

Shares 3,323,534 Value ($000) $32,205 Avg Close $9.74 Range $6.11 - $12.56

Q1 2025

Shares 2,852,371 Value ($000) $22,534 Avg Close $7.83 Range $5.83 - $10.95

Q4 2024

Shares 1,781,715 Value ($000) $14,592 Avg Close $15.60 Range $7.79 - $26.25

Q3 2024

Shares 2,000,000 Value ($000) $33,840 Avg Close $17.98 Range $16.35 - $20.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	7,704,255	$279,742	$32.89	$18.33 - $44.60
Q3 2025	4,820,370	$107,012	$16.28	$8.91 - $22.45
Q2 2025	3,323,534	$32,205	$9.74	$6.11 - $12.56
Q1 2025	2,852,371	$22,534	$7.83	$5.83 - $10.95
Q4 2024	1,781,715	$14,592	$15.60	$7.79 - $26.25
Q3 2024	2,000,000	$33,840	$17.98	$16.35 - $20.50