IOBTQ · IO Biotech, Inc. · Holdings
$0.00
+0.00 (+0.00%)
At close · Oct 5
Return incl. dividend (before tax)
Going-concern doubt
— flagged Nov 14, 2025
Substantial doubt about the company's ability to continue as a going concern.
“Our recurring losses from operations raise substantial doubt about our ability to continue as a going concern. As a result, the financial statements accompanying this Quarterly Report on Form 10-Q include a statement that there is substantial doubt about our ability to continue as a going concern for one year after the date the financial statements were issued, and these financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classification of liabilities that may result from the outcome of this uncertainty.”View the 10-Q filed Nov 14, 2025
Market Cap
$7,194
Shares
71.95M
Volume · Oct 5
20.19K
Avg daily vol (3M)
108.09K
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
Holders: 12
Total Value: $199,079
Total Shares: 3,391,581
Institutional Ownership Trend
18 quarters
Holder Concentration
Across 12 13F filers · Δ vs Dec 31, 2025Top Holder
40.9%
+8.9 pts
Top 5
81.2%
+8.0 pts
Top 10
98.1%
+3.5 pts
HHI
2,175
Moderately concentrated+535
Quarterly Activity
vs Dec 31, 2025
New
2
Increased
2
Decreased
5
Sold Out
12
Unchanged
3
Holder count:
-10
Institutional value:
-95.8%
Shares held:
-56.8%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mid XTX Topco Ltd | +249,928 | 265,792 | |
| Mega MILLENNIUM MANAGEMENT LLC | +55,442 | 194,158 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Large Beacon Pointe Advisors, LLC | −463,400 | 42,600 | |
| Mega MORGAN STANLEY | −332,967 | 206,215 | |
| Mega MARSHALL WACE, LLP | −128,047 | 301,291 | |
| Mega CITIGROUP INC | −38,952 | 72,495 | |
| Mega UBS Group AG | −12,598 | 30,980 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mid GSA CAPITAL PARTNERS LLP | 348,352 | $20,448 | |
| Mega JANE STREET GROUP, LLC | 57,974 | $3,402 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mid NOVO HOLDINGS A/S | 2,512,453 | $1,529,832 | |
| Mega BANK OF AMERICA CORP /DE/ | 799,953 | $487,091 | |
| Small Dauntless Investment Group, LLC | 451,641 | $275,004 | |
| Large RENAISSANCE TECHNOLOGIES LLC | 207,601 | $126,408 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | 75,000 | $45,667 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Small Ikarian Capital, LLC | $81,391 | 40.88% | 1,386,565 | Shares | 2026-05-15 | |
| Mid BOOTHBAY FUND MANAGEMENT, LLC | $26,523 | 13.32% | 451,852 | Shares | 2026-05-15 | |
| Mid GSA CAPITAL PARTNERS LLP | $20,448 | 10.27% | 348,352 | Shares | 2026-05-08 | |
| Mega MARSHALL WACE, LLP | $17,685 | 8.88% | 301,291 | Shares | 2026-05-15 | |
| Mid XTX Topco Ltd | $15,601 | 7.84% | 265,792 | Shares | 2026-05-15 | |
| Mega MORGAN STANLEY | $12,104 | 6.08% | 206,215 | Shares | 2026-05-15 | |
| Mega MILLENNIUM MANAGEMENT LLC | $11,397 | 5.72% | 194,158 | Shares | 2026-05-15 | |
| Mega CITIGROUP INC | $4,255 | 2.14% | 72,495 | Shares | 2026-05-11 | |
| Mega JANE STREET GROUP, LLC | $3,402 | 1.71% | 57,974 | Shares | 2026-05-12 | |
| Large Beacon Pointe Advisors, LLC | $2,500 | 1.26% | 42,600 | Shares | 2026-05-15 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | $1,955 | 0.98% | 33,307 | Shares | 2026-05-15 | |
| Mega UBS Group AG | $1,818 | 0.91% | 30,980 | Shares | 2026-05-05 |