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CIK 0002007919 · <br>Emerging growth company

Inhibrx Biosciences, Inc.

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Ticker
INBX
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
990613523
Phone
(858) 795-4220
Business address
11025 N. TORREY PINES ROAD, SUITE 140, LA JOLLA, CA, 92037
Open-market buys, last 90 days
$6,347,357
in 7 filings
Open-market sales, last 90 days
$279,010
in 2 filings

Net +$6,068,347. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Lappe Mark +$4.5M Chief Executive Officer 3 filings
  2. Kayyem Jon Faiz +$1.6M Director 3 filings
  3. FORSYTH DOUGLAS +$287K Director 1 filing
  4. MANHARD KIMBERLY −$279K Director sold 25% of stake
Date Insider Transaction Shares Price Value Owned after
2026-09-08 Lappe Mark Chief Executive Officer Purchase +1,100 $107.12 $118K 719,148
2026-09-08 Lappe Mark Chief Executive Officer Purchase +500 $108.24 $54K 719,648
2026-09-08 Lappe Mark Chief Executive Officer Purchase +1,219 $111.88 $136K 720,867
2026-09-08 Lappe Mark Chief Executive Officer Purchase +9,681 $112.28 $1.1M 730,548
2026-09-08 FORSYTH DOUGLAS Director Purchase +2,500 $114.65 $287K 227,064
2026-06-03 Vuori Kristiina MD Director Grant or award · Stock Option (right to buy) +10,000 10,000
2026-06-03 Kayyem Jon Faiz Director Grant or award · Stock Option (right to buy) +10,000 10,000
2026-06-03 FORSYTH DOUGLAS Director Grant or award · Stock Option (right to buy) +10,000 10,000
2026-06-03 MANHARD KIMBERLY Director Grant or award · Stock Option (right to buy) +10,000 10,000
2026-06-03 Vuori Kristiina MD Director Grant or award · Stock Option (right to buy) +15,000 15,000
2026-06-03 Kayyem Jon Faiz Director Grant or award · Stock Option (right to buy) +15,000 15,000
2026-06-03 FORSYTH DOUGLAS Director Grant or award · Stock Option (right to buy) +15,000 15,000
2026-06-03 MANHARD KIMBERLY Director Grant or award · Stock Option (right to buy) +15,000 15,000
2026-04-24 Matly David President Grant or award · Stock Option (right to buy) +50,000 50,000
2025-10-07 VIKING GLOBAL INVESTORS LP 10% owner Sale −308,643 $32.25 $10.0M 1,267,823
2025-10-07 VIKING GLOBAL INVESTORS LP 10% owner Sale −16,315 $32.25 $526K 67,018
2025-10-07 VIKING GLOBAL INVESTORS LP 10% owner Sale −25,042 $32.25 $808K 102,864
2025-05-28 MANHARD KIMBERLY Director Grant or award · Stock Option (right to buy) +15,000 15,000
2025-05-28 Vuori Kristiina MD Director Grant or award · Stock Option (right to buy) +15,000 15,000
2025-05-28 Kayyem Jon Faiz Director Grant or award · Stock Option (right to buy) +15,000 15,000

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