SCHEDULE 13G/A

Inhibrx Biosciences Inc

Common Stock, par value $0.0001 per share · CUSIP: 45720N103

Event date: 2025-12-31

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

• VIKING GLOBAL INVESTORS LP

  Shares: 1,454,608 · Class: 9.99%

• Viking Global Opportunities Parent GP LLC

  Shares: 1,454,608 · Class: 9.99%

• Viking Global Opportunities GP LLC

  Shares: 1,351,744 · Class: 9.3%

• Viking Global Opportunities Portfolio GP LLC

  Shares: 1,284,726 · Class: 8.8%

• Viking Global Opportunities Illiquid Investments Sub-Master LP

  Shares: 1,284,726 · Class: 8.8%

• KAVRA 104 LLC

  Shares: 67,018 · Class: 0.5%

• Viking Global Opportunities Drawdown GP LLC

  Shares: 102,864 · Class: 0.7%

• Viking Global Opportunities Drawdown Portfolio GP LLC

  Shares: 102,864 · Class: 0.7%

• Viking Global Opportunities Drawdown (Aggregator) LP

  Shares: 102,864 · Class: 0.7%

• HALVORSEN OLE ANDREAS

  Shares: 1,454,608 · Class: 9.99%

• Ott David C.

  Shares: 1,454,608 · Class: 9.99%

• Shabet Rose Sharon

  Shares: 1,454,608 · Class: 9.99%

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