13F Insight
DOSSIER · 13F Holders · Q4 2025
IOBT

IO BIOTECH INC

16 institutions still hold IO BIOTECH INC as of Q4 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 449778109·16 13F holders·last filed Dec 31, 2025
Market cap
—
13F value held
$2M
visible holders
Holders
16
filers reporting
Concentration
76.68%
Novo Holdings A/S #1
top holder share
AI Holders Summary · Q4 2025

16 institutions reported IOBT in Q4 2025. Novo Holdings A/S leads at 76.7% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Novo Holdings A/S
CIK 0001388325
$2M2.5M0.12%Q4 202502
MARSHALL WACE, LLP
CIK 0001318757
$262K429K0.00%Q4 202503
Ikarian Capital, LLC
CIK 0001778253
$81K1.4M0.01%Q1 202604
BOOTHBAY FUND MANAGEMENT, LLC
CIK 0001549230
$27K452K0.00%Q1 202605
GSA CAPITAL PARTNERS LLP
CIK 0001362033
$20K348K0.00%Q1 202606
XTX Topco Ltd
CIK 0001828301
$16K266K0.00%Q1 202607
Hilton Capital Management, LLC
CIK 0001541211
$16K26K0.00%Q4 202508
MORGAN STANLEY
CIK 0000895421
$12K206K0.00%Q1 202609
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$11K194K0.00%Q1 202610
Scientech Research LLC
CIK 0002011556
$7K11K0.00%Q4 202511
CITIGROUP INC
CIK 0000831001
$4K72K0.00%Q1 202612
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$3K58K0.00%Q1 202613
Beacon Pointe Advisors, LLC
CIK 0001744317
$3K43K0.00%Q1 202614
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$2K33K0.00%Q1 202615
UBS Group AG
CIK 0001610520
$2K31K0.00%Q1 202616
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025
Insiders at IO BIOTECH INC
Hunter Heidi →Elling Christian E →Hirth Peter →Collins Helen Louise →Glaub Kathleen Sereda →Smith David V →Zocca Mai-Britt →Burkavage Brian →