Schedule 13D ownership disclosure

Apogee Therapeutics Inc

Common Stock, $0.00001 par value · CUSIP: 03770N101

Event date: 2026-03-26

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares
Unavailable
Percent of class
Unavailable
  • Fairmount Funds Management LLCReported CIK 0001802528

    Shares: 6,666,332.00 · Class: 9.84%

  • Fairmount Healthcare Fund II L.P.Reported CIK 0001769651

    Shares: 6,666,332.00 · Class: 9.84%

  • Peter Evan HarwinReported CIK 0001663607

    Shares: 6,764,974.00 · Class: 9.99%

  • Tomas KiselakReported CIK 0001830177

    Shares: 6,764,974.00 · Class: 9.99%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.

Source: SEC EDGAR filing

Filing metadata

Accession number
0001104659-26-036265
Form type
SCHEDULE 13D/A
Filer
Apogee Therapeutics, Inc.
CIK
CIK 1974640
Filed
Mar 27, 2026
Reporting period
Mar 26, 2026
Description
Schedule 13D beneficial ownership

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