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IO Biotech, Inc.

IOBTDelisted Jun 8, 2026
Industry
Pharmaceutical Preparations
SEC CIK
0001865494

IO Biotech, Inc. was delisted on Jun 8, 2026; its insiders filed their last Form 4 on Jun 6, 2025; 12 institutions reported holding it in 13F filings for Q1 2026, worth $199.0K in total; no superinvestor held it.

Q1 2022 vs. Q4 2021

How the institutions holding IO Biotech, Inc. changed between Q4 2021 and Q1 2022.

All holders in Q1 2022All holders in Q4 2021

13F holders of IOBT: Q4 2021 compared with Q1 2022
MeasureQ4 2021Q1 2022Change
Holders2019−1
Shares15.0M14.9M−179.6K (−1.2%)
Value$92.6M$76.9M−$15.7M (−17.0%)

New holders (4)

Institutions that held IO Biotech, Inc. at the end of Q1 2022 but not at the end of Q4 2021.

Institutions new to IOBT in Q1 2022
InstitutionSharesValue% of portfolio
Susquehanna International Group, LLP26,676$141.0K0.00%
Jane Street Group, LLC14,280$76.0K0.00%
Ergoteles LLC11,126$59.0K0.00%
Citigroup Inc164$1.00K0.00%

Sold out (5)

Institutions that held IO Biotech, Inc. at the end of Q4 2021 and filed for Q1 2022 without it.

Institutions that sold out of IOBT in Q1 2022
InstitutionShares, Q4 2021Value, Q4 2021
Caas Capital Management LP50,479$323.0K
Squarepoint Ops LLC14,966$98.0K
Citadel Advisors LLC13,060$86.0K
Virtu Financial LLC12,665$83.0K
Tower Research Capital LLC (TRC)1,572$10.0K