ZENAS BIOPHARMA INC

Ticker: ZBIO CUSIP: 98937L105 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q4 2025

Shares 855,334 Value ($000) $31,057 Avg Close $32.89 Range $18.33 - $44.60

Q3 2025

Shares 857,524 Value ($000) $19,037 Avg Close $16.28 Range $8.91 - $22.45

Q2 2025

Shares 878,918 Value ($000) $8,517 Avg Close $9.74 Range $6.11 - $12.56

Q1 2025

Shares 873,623 Value ($000) $6,902 Avg Close $7.83 Range $5.83 - $10.95

Q4 2024

Shares 1,135,289 Value ($000) $9,172 Avg Close $15.60 Range $7.79 - $26.25

Q3 2024

Shares 1,501,428 Value ($000) $24,802 Avg Close $17.98 Range $16.35 - $20.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	855,334	$31,057	$32.89	$18.33 - $44.60
Q3 2025	857,524	$19,037	$16.28	$8.91 - $22.45
Q2 2025	878,918	$8,517	$9.74	$6.11 - $12.56
Q1 2025	873,623	$6,902	$7.83	$5.83 - $10.95
Q4 2024	1,135,289	$9,172	$15.60	$7.79 - $26.25
Q3 2024	1,501,428	$24,802	$17.98	$16.35 - $20.50