13F Insight
DOSSIER · 13F Holders · Q2 2026
ZBIO 2.5 04/01/32

ZENAS BIOPHARMA INC

14 institutions still hold ZENAS BIOPHARMA INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 98937LAA3·14 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$117M
visible holders
Holders
14
filers reporting
Concentration
36.47%
Context Capital Management, LLC #1
top holder share
AI Holders Summary · Q2 2026

14 institutions reported ZBIO 2.5 04/01/32 in Q2 2026. Context Capital Management, LLC leads at 36.5% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Context Capital Management, LLC
CIK 0001301396
$43M35.8M0.83%Q2 202602
HIGHBRIDGE CAPITAL MANAGEMENT LLC
CIK 0000919185
$20M20.0M0.64%Q1 202603
BRAIDWELL LP
CIK 0001920938
$13M13.0M0.45%Q1 202604
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$10M9.5M0.00%Q1 202605
LINDEN ADVISORS LP
CIK 0001279396
$8M7.5M0.04%Q1 202606
Jefferies Financial Group Inc.
CIK 0000096223
$6M5.5M0.04%Q1 202607
CAPSTONE INVESTMENT ADVISORS, LLC
CIK 0001426196
$4M3.5M0.01%Q1 202608
Monashee Investment Management LLC
CIK 0001627608
$3M3.2M1.75%Q1 202609
Graham Capital Management, L.P.
CIK 0001315421
$3M2.5M0.06%Q1 202610
Calamos Advisors LLC
CIK 0001316507
$3M2.5M0.01%Q1 202611
Woodline Partners LP
CIK 0001784547
$3M2.5M0.01%Q1 202612
Maven Securities LTD
CIK 0001633046
$2M1.5M0.03%Q1 202613
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$1M1.2M0.00%Q1 202614
ARISTEIA CAPITAL, L.L.C.
CIK 0001080171
$518K500K0.01%Q1 2026