SCHEDULE 13D/A

BIORA THERAPEUTICS INC

Common Stock, par value $0.001 per share · CUSIP: 74319F107

Event date: 2025-03-24

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

• Athyrium Opportunities III Co-Invest 1 LPReported CIK 0001815260

  Shares: 2,496,246 · Class: 36.5%

• Athyrium Opportunities III Acquisition LPReported CIK 0001835266

  Shares: 269,171 · Class: 3.9%

• Athyrium Opportunities III Acquisition 2 LPReported CIK 0001815268

  Shares: 632,282 · Class: 9.2%

• Athyrium Opportunities 2020 LPReported CIK 0001815261

  Shares: 18,333 · Class: 0.3%

• Jeffrey A. FerrellReported CIK 0001394967

  Shares: 3,416,032 · Class: 49.9%

• Athyrium Opportunities Associates Co-Invest LLCReported CIK 0001815259

  Shares: 2,496,246 · Class: 36.5%

• Athyrium Funds GP Holdings LLCReported CIK 0001815225

  Shares: 3,416,032 · Class: 49.9%

• Athyrium Opportunities Associates III LPReported CIK 0001815262

  Shares: 919,786 · Class: 13.4%

• Athyrium Opportunities Associates III GP LLCReported CIK 0001815211

  Shares: 919,786 · Class: 13.4%

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