// company-profile
IO Biotech, Inc.
IOBTQExchangeOTCSectorPharmaceutical PreparationsInc.DEFilings46Insiders18
// api This IO Biotech, Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
No insider activity recorded for IOBTQ in the last 90 days.
Institutional Ownership
Top 13F-HR holders of IO Biotech, Inc. as of 2026-03-31
Total reported AUM
$179,058
QoQ change
-96.2%
Reporting period
2026-03-31
#1
Ikarian Capital, LLC
CIK 1778253
$81,391
1.4M shares
#2
BOOTHBAY FUND MANAGEMENT, LLC
CIK 1549230
$26,524
452K shares
#3
MARSHALL WACE, LLP
CIK 1318757
$18,077
301K shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 5, 2025 | Hunter Heidi | IOBTQ | Award | 35,144 | $0.00 | $0K |
| Jun 5, 2025 | Elling Christian E | IOBTQ | Award | 35,144 | $0.00 | $0K |
| Jun 5, 2025 | Smith David V | IOBTQ | Award | 35,144 | $0.00 | $0K |
| Jun 5, 2025 | Collins Helen Louise | IOBTQ | Award | 35,144 | $0.00 | $0K |
| Jun 5, 2025 | Glaub Kathleen Sereda | IOBTQ | Award | 35,144 | $0.00 | $0K |
45 more transactions hidden
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