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CITADEL ADVISORS LLC

Position in ZBIO — Zenas BioPharma, Inc.

CIK 1423053 MIAMI, FL

Position in ZBIO

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$4,968,895
+$3,661,587 QoQ
Shares Held
195,780
+192.8% QoQ
Ownership
0.300%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#41
of 145 holders
Holding Since
Sep 2024
6 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ZBIO Over Time

Shares Held

Position Value (USD)

Derivatives in ZBIO

reported options exposure · as of Jun 30, 2026
CallValue
$784,242
CallShares
30,900
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

CITADEL ADVISORS LLC holds $6,088,670,159 across 436 Biotechnology names. ZBIO ranks #140 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ZBIO

Export CSV
11 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $4,968,895 195,780
2026-06-30 $784,242 30,900
2026-03-31 $668,610 34,200
2026-03-31 $1,307,308 66,870
2026-03-31 $520,030 26,600
2025-12-31 $888,106 24,459
2025-12-31 $370,362 10,200
2025-12-31 $802,451 22,100
2025-06-30 $2,846,776 293,785
2024-12-31 $676,690 82,624
2024-09-30 $1,595,928 94,322