INBX Inhibrx Biosciences Inc.
Health Care, filed as INHIBRX BIOSCIENCES INC (COM), Equity As of 2026 Q2 among managers we track Quote on Google Finance, opens in a new tab
Bought by 2 managers in 2026 Q2, sold by 1
In 2026 Q2 Nehal Chopra and James Silverman opened positions in Inhibrx Biosciences, while Andreas Halvorsen trimmed.
Who owns this now
Largest portfolio weights among holders, up to 0.5% (Nehal Chopra, Ratan Capital Management). Not free-float ownership.
Who owns INBX
Sorted by value, long equity only, as of 2026 Q2.
| History | |||||
|---|---|---|---|---|---|
| Andreas Halvorsen, Viking Global Investors | Reduce −21.8% | 1,123,929 | $106M | History | |
| James Silverman, Opaleye Management | New 0.17% | 20,291 | $1.9M | History | |
| Nehal Chopra, Ratan Capital Management | New 0.51% | 16,612 | $1.6M | History |
Insider trades
Open-market buys and sales by INBX's executives, directors and 10% owners in the last 12 months, from their Form 4s
- $6.3M bought by 3 insiders
- $279K sold by 1 insider outside a trading plan
- None no planned (10b5-1) sales
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Mark Lappe CEOBuy$849K 10,040 shares at $84.56 +6.3% to stakeTraded Oct 14 Filed Oct 14
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Mark Lappe CEOBuy$999K 10,000 shares at $99.88 +1.4% to stakeTraded Sep 25–28 Filed Sep 28
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Jon Faiz Kayyem DirectorBuy$500K 5,000 shares at $100.00 +1.2% to stakeTraded Sep 23 Filed Sep 23
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Jon Faiz Kayyem DirectorBuy$500K 5,000 shares at $100.00 +1.2% to stakeTraded Sep 16 Filed Sep 17
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Kimberly Manhard DirectorSale$164K 1,500 shares at $109.03 17% of stakeTraded Sep 11–15 Filed Sep 15
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Kimberly Manhard DirectorSale$115K 1,000 shares at $115.47 10% of stakeTraded Sep 8–9 Filed Sep 10
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Jon Faiz Kayyem DirectorBuy$568K 5,000 shares at $113.52 +1.2% to stakeTraded Sep 8 Filed Sep 8
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Mark Lappe CEOBuy$2.6M 25,000 shares at $105.82 +3.5% to stakeTraded Sep 8 Filed Sep 8
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Douglas Forsyth DirectorBuy$287K 2,500 shares at $114.65 +1.1% to stakeTraded Sep 8 Filed Sep 8
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Viking Global Investors LP 10% owner, +7 joint filersSale$11.3M 350,000 shares at $32.25 77% of stakeTraded Oct 7, 2025 Filed Oct 9, 2025
SEC filings
Recent issuer filings from EDGAR, 22 shown.
| Filed | Form | Detail | Links |
|---|---|---|---|
| 8-K | 7.01,9.01 | Filing Doc | |
| 8-K | 7.01,8.01,9.01 | Filing Doc | |
| SCHEDULE 13G/A | — | Filing Doc | |
| SCHEDULE 13G | — | Filing Doc | |
| SCHEDULE 13G/A | — | Filing Doc | |
| 10-Q | Filing Doc | ||
| 8-K | 2.02,9.01 | Filing Doc | |
| SCHEDULE 13G | — | Filing Doc | |
| 8-K | 1.01,2.03,3.02,7.01,9.01 | Filing Doc | |
| 8-K | 7.01,8.01,9.01 | Filing Doc | |
| 8-K | 5.07 | Filing Doc | |
| SCHEDULE 13G/A | — | Filing Doc | |
| SCHEDULE 13G/A | — | Filing Doc | |
| 10-Q | Filing Doc | ||
| 8-K | 2.02,9.01 | Filing Doc | |
| 8-K | 7.01,8.01,9.01 | Filing Doc | |
| DEF 14A | Filing Doc | ||
| DEFA14A | Filing Doc | ||
| 8-K | 7.01,8.01,9.01 | Filing Doc | |
| 10-K | Filing Doc | ||
| 8-K | 2.02,9.01 | Filing Doc | |
| 8-K | 7.01,9.01 | Filing Doc |
No filings match this filter.
Financials
US-GAAP annual figures by fiscal year, as tagged in Form 10-K. Each value links to its SEC filing.
Income statement
Balance sheet
Ownership over time
13Fs that reported it each quarter. Click a bar for that quarter’s holders.