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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
2026-10-14 Lappe Mark Chief Executive Officer Purchase +2,470 $84.07 $208K 743,018
2026-10-14 Lappe Mark Chief Executive Officer Purchase +2,470 $85.00 $210K 745,488
2026-10-14 Lappe Mark Chief Executive Officer Purchase +100 $85.76 $9K 745,588
2026-10-14 Lappe Mark Chief Executive Officer Purchase +2,449 $84.07 $206K 167,449
2026-10-14 Lappe Mark Chief Executive Officer Purchase +2,451 $85.00 $208K 169,900
2026-10-14 Lappe Mark Chief Executive Officer Purchase +100 $85.76 $9K 170,000
2026-09-28 Lappe Mark Chief Executive Officer Purchase +1,500 $98.88 $148K 737,548
2026-09-28 Lappe Mark Chief Executive Officer Purchase +3,000 $101.70 $305K 740,548
2026-09-25 Lappe Mark Chief Executive Officer Purchase +3,324 $98.87 $329K 733,872
2026-09-25 Lappe Mark Chief Executive Officer Purchase +2,176 $99.60 $217K 736,048
2026-09-23 Kayyem Jon Faiz Director Purchase +5,000 $100.00 $500K 434,360
2026-09-16 Kayyem Jon Faiz Director Purchase +5,000 $100.00 $500K 429,360
2026-09-15 MANHARD KIMBERLY Director Sale −500 $105.05 $53K 7,500
2026-09-14 MANHARD KIMBERLY Director Sale −500 $110.26 $55K 8,000
2026-09-11 MANHARD KIMBERLY Director Sale −500 $111.78 $56K 8,500
2026-09-09 MANHARD KIMBERLY Director Sale −500 $115.80 $58K 9,000
2026-09-08 MANHARD KIMBERLY Director Sale −500 $115.14 $58K 9,500
2026-09-08 Kayyem Jon Faiz Director Purchase +5,000 $113.52 $568K 424,360
2026-09-08 Lappe Mark Chief Executive Officer Purchase +5,895 $99.29 $585K 711,443
2026-09-08 Lappe Mark Chief Executive Officer Purchase +6,605 $100.64 $665K 718,048

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