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SCHEDULE 13D/A Filed 2026-06-02 Event 2026-03-31 SEC 0001591046-26-000008 →

Lundbeckfond Invest A/S → IO Biotech, Inc. IOBTQ

Stake: 27.40% Shares: 21,851,920 CUSIP: 449778109 Class: Common Stock, par value $0.001 per share
Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 32/100 · Filer 90d Win Rate: 0% · Hist. 90d Edge: +0.0%
  • Active Schedule 13D filer baseline
  • High conviction ownership stake (27.4%)
  • Elevated short days-to-cover (34.0 DTC)

Item 4 — Purpose of Transaction

Item 4 of the Statement is hereby amended and supplemented as follows: On March 31, 2026, the Issuer ceased operations and filed a voluntary petition for relief (the "Petition") under the provisions of Chapter 7 of Title 11 of the United States Code (the "Bankruptcy Code") in the United States Bankruptcy Court for the District of Delaware. The assets of the Issuer will be liquidated and claims paid in accordance with the priorities specified in the Bankruptcy Code. Concurrently with the Petition, on March 31, 2026, each member of the Issuer's board of directors, including Christian Elling, resigned from the Board of Directors of the Issuer and all of its committees.

Cross-References

Insider Activity (last 365d)
0 transactions
0 buys · 0 sales · 0 awards/exercises
Issuer Cluster
4 13D/G filings on this issuer
3 other filings besides this one
Filer Track Record
2 filings by this filer
1 other filing in the data moat
Short Interest · settle 2026-10-15
DTC 34.02
470,505 shares short · 0.0% vs prior

Post-Filing Returns · since 2026-03-31 on IOBTQ

+1 day
0.0%
+5 days
0.0%
+30 days
0.0%
+60 days
0.0%
+90 days
0.0%
+180 days
—

Anchor price 0.00 on closest trading day on/after 2026-03-31. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Other 13D/G Filings on IO Biotech, Inc.

FiledFormFilerStakeShares
2026-01-23 SCHEDULE Novo Holdings A/S 3.30% 2,469,135 view →
2023-08-14 SC Lundbeckfond Invest A/S — — view →
2023-08-11 SC Novo Holdings A/S — — view →

Other Filings by Lundbeckfond Invest A/S

FiledFormIssuerStakeShares
2023-08-14 SC IO Biotech, Inc. IOBTQ — — view →

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