Inhibrx Biosciences, Inc. (INBX)

Nasdaq · Biological Products, (No Diagnostic Substances) · Inc. DE

What they're doing

Between 2026-08-02 and 2026-10-31, public records show 19 signals for Inhibrx Biosciences, Inc.. Most notable: 2026-09-08: 3 insiders bought $3.5M within 14 days; 2026-09-08: Lappe Mark (director) bought $1.1M of stock; 2026-09-08: Lappe Mark (director) bought $665k of stock. Federal contract obligations over the last 24 months total $0. This summary was assembled automatically from SEC EDGAR, USAspending.gov, U.S. Senate lobbying disclosures and Wikimedia pageview counts.

Generated 2026-10-31 from public records.

Signals, last 12 months

  1. Insider purchase
    Lappe Mark (director) bought $208k of stock
  2. Insider purchase
    Lappe Mark (director) bought $206k of stock
  3. Insider purchase
    Lappe Mark (director) bought $210k of stock
  4. Insider purchase
    Lappe Mark (director) bought $208k of stock
  5. Insider purchase
    Lappe Mark (director) bought $305k of stock
  6. Insider purchase
    Lappe Mark (director) bought $148k of stock
  7. Insider purchase
    Lappe Mark (director) bought $329k of stock
  8. Insider purchase
    Lappe Mark (director) bought $217k of stock
  9. Insider purchase
    Kayyem Jon Faiz (director) bought $500k of stock
  10. Insider purchase
    Kayyem Jon Faiz (director) bought $500k of stock
  11. Insider buying cluster
    3 insiders bought $3.5M within 14 days
  12. Insider purchase
    Lappe Mark (director) bought $1.1M of stock
  13. Insider purchase
    Lappe Mark (director) bought $665k of stock
  14. Insider purchase
    Kayyem Jon Faiz (director) bought $568k of stock
  15. Insider purchase
    Lappe Mark (director) bought $585k of stock
  16. Insider purchase
    FORSYTH DOUGLAS (director) bought $287k of stock
  17. Insider purchase
    Lappe Mark (director) bought $136k of stock
  18. Insider purchase
    Lappe Mark (director) bought $118k of stock
  19. Insider purchase
    Lappe Mark (director) bought $54k of stock
  20. Material 8-K filing
    Filed 8-K disclosing material agreement

Insider transactions

DateInsiderRoleCodeSharesPriceValue
2026-10-14Lappe MarkdirectorP10085.76$8,576
2026-10-14Lappe MarkdirectorP2,45185$208,333
2026-10-14Lappe MarkdirectorP2,44984.07$205,889
2026-10-14Lappe MarkdirectorP10085.76$8,576
2026-10-14Lappe MarkdirectorP2,47085$209,948
2026-10-14Lappe MarkdirectorP2,47084.07$207,655
2026-09-28Lappe MarkdirectorP3,000101.7$305,106
2026-09-28Lappe MarkdirectorP1,50098.88$148,320
2026-09-25Lappe MarkdirectorP2,17699.6$216,727
2026-09-25Lappe MarkdirectorP3,32498.87$328,630
2026-09-23Kayyem Jon FaizdirectorP5,000100$500,000
2026-09-16Kayyem Jon FaizdirectorP5,000100$500,000
2026-09-15MANHARD KIMBERLYdirectorS500105.05$52,525
2026-09-14MANHARD KIMBERLYdirectorS500110.26$55,130
2026-09-11MANHARD KIMBERLYdirectorS500111.78$55,888
2026-09-09MANHARD KIMBERLYdirectorS500115.8$57,898
2026-09-08MANHARD KIMBERLYdirectorS500115.14$57,570
2026-09-08Lappe MarkdirectorP9,681112.28$1,087,001
2026-09-08Lappe MarkdirectorP1,219111.88$136,382
2026-09-08Kayyem Jon FaizdirectorP5,000113.52$567,580
2026-09-08FORSYTH DOUGLASdirectorP2,500114.65$286,617
2026-09-08Lappe MarkdirectorP5,89599.29$585,343
2026-09-08Lappe MarkdirectorP6,605100.64$664,719
2026-09-08Lappe MarkdirectorP1,100107.12$117,836
2026-09-08Lappe MarkdirectorP500108.24$54,118
2025-10-07Viking Global Opportunities Parent GP LLCten percent ownerS16,31532.25$526,159
2025-10-07Viking Global Opportunities Parent GP LLCten percent ownerS308,64332.25$9,953,737
2025-10-07Viking Global Opportunities Parent GP LLCten percent ownerS25,04232.25$807,605
2025-10-07VIKING GLOBAL INVESTORS LP; Viking Global Opportunities Parent GP LLC; Viking Global Opportunities GP LLC; Viking Global Opportunities Portfolio GP LLC; Viking Global Opportunities Illiquid Investments Sub-Master LP; HALVORSEN OLE ANDREAS; Ott David C.; Shabet Rose Sharonten percent ownerS308,64332.25$9,953,737
2025-10-07VIKING GLOBAL INVESTORS LP; Viking Global Opportunities Parent GP LLC; Viking Global Opportunities GP LLC; Viking Global Opportunities Portfolio GP LLC; Viking Global Opportunities Illiquid Investments Sub-Master LP; HALVORSEN OLE ANDREAS; Ott David C.; Shabet Rose Sharonten percent ownerS16,31532.25$526,159
2025-10-07VIKING GLOBAL INVESTORS LP; Viking Global Opportunities Parent GP LLC; Viking Global Opportunities GP LLC; Viking Global Opportunities Portfolio GP LLC; Viking Global Opportunities Illiquid Investments Sub-Master LP; HALVORSEN OLE ANDREAS; Ott David C.; Shabet Rose Sharonten percent ownerS25,04232.25$807,605
2025-03-27Kayyem Jon FaizdirectorG90,0000$0
2025-03-27Kayyem Jon FaizdirectorG90,0000$0
2024-12-16Kayyem Jon FaizdirectorG250,0000$0
2024-12-16Kayyem Jon FaizdirectorG500,0000$0
2024-12-16Kayyem Jon FaizdirectorG250,0000$0
2024-12-16Kayyem Jon FaizdirectorG500,0000$0
2024-12-16Kayyem Jon FaizdirectorG250,0000$0
2024-12-16Kayyem Jon FaizdirectorG250,0000$0
2024-12-06Kayyem Jon FaizdirectorG52,0000$0
2024-12-06Kayyem Jon FaizdirectorG52,0000$0
2024-11-20Kayyem Jon FaizdirectorP18,75014.19$266,063
2024-11-20Kayyem Jon FaizdirectorP18,75014.19$266,063
2024-11-20Kayyem Jon FaizdirectorP18,75014.19$266,102
2024-11-20Kayyem Jon FaizdirectorP18,75014.19$266,102
2024-11-19Kayyem Jon FaizdirectorP34,84314.23$495,816
2024-11-19Kayyem Jon FaizdirectorP34,84314.23$495,816
2024-11-19Kayyem Jon FaizdirectorP34,84314.23$495,708
2024-11-19Kayyem Jon FaizdirectorP34,84314.23$495,708
2024-10-03Vuori Kristiina MDdirectorP6,66715$100,005

Federal contracts

No federal contract actions on record for this recipient mapping.

Lobbying

No federal lobbying filings on record for this client mapping.

Public attention

No Wikipedia pageview data linked to this company.

Recent filings

  • 2026-10-28 SCHEDULE 13G/A
  • 2026-10-14 4
  • 2026-09-28 8-K
  • 2026-09-28 4
  • 2026-09-23 4
  • 2026-09-18 4/A
  • 2026-09-18 4/A
  • 2026-09-18 4/A
  • 2026-09-18 4/A
  • 2026-09-17 4
  • 2026-09-15 144
  • 2026-09-15 4
  • 2026-09-14 144
  • 2026-09-11 144
  • 2026-09-10 4
  • 2026-09-09 144
  • 2026-09-08 8-K
  • 2026-09-08 4
  • 2026-09-08 4
  • 2026-09-08 4