Who owns Inhibrx Biosciences, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of INBX from SEC Form 13F filings across 161 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 161 institutions disclosed 14.3M shares of Inhibrx Biosciences, Inc. worth $1.36B — about 91.4% of shares outstanding; the largest disclosed holder is MORGAN STANLEY. Source: SEC Form 13F filings, parsed by EvidInvest.
161
13F holders
$1.36B
value, 2026 filers
91.4%
of shares outstanding (14.3M sh)
51
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of INBX's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | MORGAN STANLEY | 1.3M | $123.9M | 0.0% | 8.3% | +3.6% |
| 2 | PERCEPTIVE ADVISORS LLC | 1.3M | $123.0M | 1.8% | 8.3% | -10.0% |
| 3 | Sanofi | 1.2M | $109.7M | 20.5% | 7.4% | 0.0% |
| 4 | VIKING GLOBAL INVESTORS LP | 1.1M | $106.5M | 0.3% | 7.2% | -21.8% |
| 5 | HighTower Advisors, LLC | 870,551 | $82.5M | 0.1% | 5.6% | 0.0% |
| 6 | BANK OF AMERICA CORP /DE/ | 841,141 | $79.7M | 0.0% | 5.4% | +2473.6% |
| 7 | BlackRock, Inc. | 825,972 | $78.3M | 0.0% | 5.3% | +3.4% |
| 8 | Schonfeld Strategic Advisors LLC | 697,586 | $66.1M | 0.2% | 4.5% | +173.7% |
| 9 | STATE STREET CORP | 640,458 | $60.7M | 0.0% | 4.1% | +16.3% |
| 10 | VANGUARD CAPITAL MANAGEMENT LLC | 492,477 | $46.7M | 0.0% | 3.1% | +1.2% |
| 11 | Woodline Partners LP | 400,892 | $38.0M | 0.1% | 2.6% | +4.3% |
| 12 | Capital Research Global Investors | 363,050 | $34.4M | 0.0% | 2.3% | -7.6% |
| 13 | GOLDMAN SACHS GROUP INC | 338,176 | $32.0M | 0.0% | 2.2% | +255.7% |
| 14 | PFM Health Sciences, LP | 308,385 | $29.2M | 2.5% | 2% | +1.0% |
| 15 | Sofinnova Investments, Inc. | 303,103 | $28.7M | 1.5% | 1.9% | -25.3% |
| 16 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 271,700 | $25.7M | 0.0% | 1.7% | +59.2% |
| 17 | Parkman Healthcare Partners LLCNEW | 256,950 | $24.3M | 2.5% | 1.6% | new |
| 18 | GEODE CAPITAL MANAGEMENT, LLC | 256,175 | $24.3M | 0.0% | 1.6% | +10.7% |
| 19 | First Turn Management, LLCNEW | 164,783 | $15.6M | 1.7% | 1.1% | new |
| 20 | MILLENNIUM MANAGEMENT LLC | 147,200 | $13.9M | 0.0% | 0.9% | -55.1% |
| 21 | CDC Financial, Inc. | 140,130 | $13.3M | 5.6% | 0.9% | +12.5% |
| 22 | FIRST TRUST ADVISORS LPNEW | 128,424 | $12.2M | 0.0% | 0.8% | new |
| 23 | VANGUARD PORTFOLIO MANAGEMENT LLC | 122,557 | $11.6M | 0.0% | 0.8% | +69.1% |
| 24 | CAPITOLIS LIQUID GLOBAL MARKETS LLC | 119,200 | $11.3M | 0.0% | 0.8% | -4.6% |
| 25 | NORTHERN TRUST CORP | 100,957 | $9.6M | 0.0% | 0.6% | +7.7% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.