IO Biotech, Inc. - Common stock, par value $0.001 per share (IOBT)

Historical Holders from Q4 2021 to Q3 2025

Type / Class
Equity / Common stock, par value $0.001 per share
Symbol
IOBT on Nasdaq
Shares outstanding
65,606,830
Price per share
$0.3631
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares as of 30 Sep 2025
9,895,875
Total reported value
$3,589,663
% of total 13F portfolios
0%
Share change
-8,286,832
Value change
-$13,417,589
Avg buy value change
+0%
Avg sell value change
-0%
Number of holders
21
Price from insider filings
$1.39
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of IO Biotech, Inc. - Common stock, par value $0.001 per share (IOBT) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
HBM Healthcare Investments (Cayman) Ltd. 8.2% $5,412,970 5,523,439 HBM Healthcare Investments (Cayman) Ltd. 31 Dec 2023
Novo Holdings A/S 7.3% $10,560,967 4,981,588 Novo Holdings A/S 11 Aug 2025
Chernett Jorey 5.3% $1,286,550 3,477,162 Chernett Jorey 30 Oct 2025
Samsara BioCapital, L.P. 3.8% $2,578,946 2,631,578 Samsara BioCapital, L.P. 31 Dec 2024
As of 30 Sep 2025, IO Biotech, Inc. - Common stock, par value $0.001 per share (IOBT) has 21 institutional shareholders filing 13F forms. They hold 9,895,875 shares. of 65,606,830 outstanding shares (15%) .

Top 25 institutional shareholders own 15% of the company.

Filer Ownership Nb Shares Share Change % Portfolio % Holdings Value
NOVO HOLDINGS A/S 3.8% 2,512,453 -25% 0.06% $912,272
Ikarian Capital, LLC 2.3% 1,525,893 0.13% $554,051
MILLENNIUM MANAGEMENT LLC 2.1% 1,392,396 0% $505,579
MARSHALL WACE, LLP 1.6% 1,052,631 -50% 0% $378,947
BANK OF AMERICA CORP /DE/ 1.2% 799,953 -50% 0% $290,383
MORGAN STANLEY 1% 668,402 +2.3% 0% $242,697
BOOTHBAY FUND MANAGEMENT, LLC 0.9% 591,180 0.01% $214,657
RENAISSANCE TECHNOLOGIES LLC 0.83% 547,315 +293% 0% $198,730
Point72 Asset Management, L.P. 0.38% 250,000 0% $90,775
XTX Topco Ltd 0.27% 179,207 +514% 0% $65,070
Quadrature Capital Ltd 0.13% 83,382 0% $30,276
BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.11% 75,000 0% 0% $27,233
GOLDMAN SACHS GROUP INC 0.1% 66,564 0% $24,169
Virtu Financial LLC 0.06% 39,063 0% $14,000
GEODE CAPITAL MANAGEMENT, LLC 0.05% 33,307 0% 0% $12,093
NewEdge Advisors, LLC 0.04% 25,692 +6.1% 0% $9,329
Hilton Capital Management, LLC 0.04% 25,510 0% $9,263
PKS Advisory Services, LLC 0.03% 19,500 0% $7,080
UBS Group AG 0.01% 7,013 -47% 0% $2,546
CITIGROUP INC 0% 1,292 +311% 0% $469
SBI Securities Co., Ltd. 0% 122 -7.6% 0% $44
TWO SIGMA SECURITIES, LLC 0% 0 -100% $0
LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 0% 0 -100% $0
ACADIAN ASSET MANAGEMENT LLC 0% 0 -100% $0
RAYMOND JAMES FINANCIAL INC 0% 0 -100% $0

Institutional Holders of IO Biotech, Inc. - Common stock, par value $0.001 per share (IOBT) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (% of par) Investors
2025 Q3 9,895,875 $3,589,663 -$13,417,589 36.31% 21
2025 Q2 18,182,707 $25,273,480 -$1,285,024 139% 26
2025 Q1 19,066,617 $20,781,978 -$660,538 109% 21
2024 Q4 19,692,862 $18,114,763 -$4,833,042 92% 26
2024 Q3 23,591,882 $24,769,965 -$2,959,503 105% 19
2024 Q2 26,183,049 $30,634,167 -$1,443,320 117% 19
2024 Q1 27,341,910 $47,354,293 -$3,558,302 173% 17
2023 Q4 29,400,721 $55,273,224 +$999,356 188% 18
2023 Q3 29,668,665 $41,702,613 +$24,426,263 141% 19
2023 Q2 12,246,779 $23,953,554 -$3,111,706 195.5% 15
2023 Q1 13,917,553 $26,081,803 -$1,175,062 187.5% 17
2022 Q4 14,281,285 $32,846,954 -$2,578,155 230% 17
2022 Q3 15,335,530 $41,559,000 -$326,875 271.01% 20
2022 Q2 15,453,557 $72,167,000 +$2,681,635 466.99% 18
2022 Q1 14,858,852 $76,863,500 -$1,060,884 529.99% 19
2021 Q4 12,982,583 $82,349,000 +$82,349,000 640.01% 19