AMBRX BIOPHARMA INC (AMAM)
Institutional ownership reported to the SEC as of Q4 2023, across 11 quarters.
64
Reporting holders
$901.5M
Reported value
0.8%
Held as options
+16
Holder change
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Darwin Global Management, Ltd. | $237.6M | 16,688,636 | 46.64% | new | NEW |
| Cormorant Asset Management, LP | $159.9M | 11,231,000 | 7.64% | new | NEW |
| Paradigm Biocapital Advisors LP | $64.1M | 4,352,689 | 3.00% | new | NEW |
| D. E. Shaw & Co., Inc. | $60.4M | 4,240,486 | 0.05% | new | NEW |
| Deep Track Capital, LP | $52.8M | 3,710,412 | 1.76% | new | NEW |
| Nextech Invest Ltd. | $44.6M | 3,129,300 | 8.30% | new | NEW |
| Balyasny Asset Management L.P. | $30.7M | 2,154,700 | 0.06% | new | NEW |
| CITADEL ADVISORS LLC | $30.5M | 2,042,212 | 0.01% | new | NEW |
| Logos Global Management LP | $29.9M | 2,100,000 | 2.79% | new | NEW |
| VR Adviser, LLC | $29.5M | 2,070,000 | 2.02% | new | NEW |
| FMR LLC | $21.0M | 1,474,258 | 0.00% | new | NEW |
| VANGUARD GROUP INC | $19.9M | 1,399,642 | 0.00% | new | NEW |
| Woodline Partners LP | $17.9M | 1,255,148 | 0.19% | new | NEW |
| WuXi AppTec Co., Ltd. | $14.2M | 1,000,000 | 36.92% | new | FIRST |
| BlackRock Inc. | $7.1M | 501,604 | 0.00% | new | NEW |
| Ghost Tree Capital, LLC | $6.8M | 475,000 | 2.21% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $6.2M | 432,709 | 0.00% | new | NEW |
| GOLDMAN SACHS GROUP INC | $5.7M | 399,648 | 0.00% | new | NEW |
| Ally Bridge Group (NY) LLC | $5.5M | 385,383 | 3.27% | new | NEW |
| JANE STREET GROUP, LLC | $4.7M | 295,642 | 0.00% | new | NEW |
| FEDERATED HERMES, INC. | $4.7M | 330,949 | 0.01% | new | NEW |
| MACQUARIE GROUP LTD | $4.3M | 300,000 | 0.00% | new | NEW |
| ORBIMED ADVISORS LLC | $4.2M | 296,000 | 0.08% | new | NEW |
| Schonfeld Strategic Advisors LLC | $3.8M | 263,743 | 0.02% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $3.7M | 258,364 | 0.00% | new | NEW |
| Monashee Investment Management LLC | $3.0M | 207,500 | 0.52% | new | NEW |
| HighVista Strategies LLC | $2.9M | 203,122 | 1.05% | new | NEW |
| BARCLAYS PLC | $2.8M | 199,950 | 0.00% | new | NEW |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2.5M | 49,203 | 0.00% | new | NEW |
| TD Asset Management Inc | $2.0M | 140,256 | 0.00% | new | NEW |
| StemPoint Capital LP | $1.8M | 126,101 | 0.48% | new | FIRST |
| GROUP ONE TRADING, L.P. | $1.4M | options only | 0.00% | new | OPTIONS |
| Lighthouse Investment Partners, LLC | $1.3M | 88,925 | 0.06% | new | NEW |
| Parkman Healthcare Partners LLC | $1.2M | 87,678 | 0.18% | new | NEW |
| GEODE CAPITAL MANAGEMENT, LLC | $1.2M | 81,157 | 0.00% | new | NEW |
| PERCEPTIVE ADVISORS LLC | $1.1M | 78,811 | 0.03% | new | NEW |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $1.1M | 77,472 | 0.00% | new | NEW |
| Royal Bank of Canada | $998.0K | 70,094 | 0.00% | new | NEW |
| Connective Capital Management, LLC | $828.6K | 58,189 | 0.69% | new | NEW |
| HealthInvest Partners AB | $823.7K | 57,847 | 0.64% | new | NEW |
| Saturn V Capital Management LP | $751.6K | 52,781 | 0.29% | new | NEW |
| MORGAN STANLEY | $719.9K | 50,552 | 0.00% | new | NEW |
| STATE STREET CORP | $712.2K | 50,015 | 0.00% | new | NEW |
| Altitude Crest Partners Inc. | $613.7K | 43,100 | 0.41% | new | FIRST |
| SIERRA SUMMIT ADVISORS LLC | $530.3K | 37,237 | 0.15% | new | FIRST |
| BANK OF AMERICA CORP /DE/ | $523.1K | 36,733 | 0.00% | new | NEW |
| FRED ALGER MANAGEMENT, LLC | $468.3K | 32,886 | 0.00% | new | NEW |
| Old Well Partners, LLC | $410.1K | 28,800 | 0.19% | new | NEW |
| JPMORGAN CHASE & CO | $350.6K | 24,624 | 0.00% | new | NEW |
| GTS SECURITIES LLC | $269.1K | options only | 0.00% | new | OPTIONS |
| CITIGROUP INC | $267.3K | 18,774 | 0.00% | new | NEW |
| Bayesian Capital Management, LP | $225.0K | 15,804 | 0.02% | new | NEW |
| Squarepoint Ops LLC | $220.3K | 15,470 | 0.00% | new | NEW |
| Engineers Gate Manager LP | $176.4K | 12,388 | 0.01% | new | NEW |
| Tudor Investment Corp Et Al | $153.8K | 10,800 | 0.00% | new | NEW |
| MIRABELLA FINANCIAL SERVICES LLP | $143.0K | 10,040 | 0.02% | new | NEW |
| China Universal Asset Management Co., Ltd. | $104.0K | 7,303 | 0.02% | new | NEW |
| Virtus ETF Advisers LLC | $97.9K | 6,878 | 0.06% | new | NEW |
| Tower Research Capital LLC (TRC) | $79.9K | 5,614 | 0.00% | new | NEW |
| UBS Group AG | $54.7K | 3,840 | 0.00% | new | NEW |
| PRICE T ROWE ASSOCIATES INC /MD/ | $15.4K | 1,084,247 | 0.00% | new | NEW |
| GAMMA Investing LLC | $13.7K | 491 | 0.00% | new | FIRST |
| US BANCORP \DE\ | $12.9K | 906 | 0.00% | new | NEW |
| ExodusPoint Capital Management, LP | $2.0K | 140,842 | 0.01% | new | NEW |
| SIMPLEX TRADING, LLC | $1.1K | 7,657 | 0.00% | new | NEW |
| RENAISSANCE TECHNOLOGIES LLC | $768 | 53,900 | 0.00% | new | NEW |
| NWI MANAGEMENT LP | $764 | 53,645 | 0.02% | new | NEW |
| Virtu Financial LLC | $290 | 20,386 | 0.02% | new | NEW |
| Cutler Group LLC / CA | $35 | 2,380 | 0.00% | new | NEW |
| Daiwa Securities Group Inc. | $4 | 258 | 0.00% | new | NEW |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q4 2023 | 64 | $901.5M | 62,781,246 | 63 | 0 | 0 | 0.8% |
| Q3 2023 | 48 | $569.1M | 47,871,797 | 18 | 14 | 7 | 3.3% |
| Q2 2023 | 41 | $761.6M | 45,804,204 | 18 | 11 | 9 | 1.0% |
| Q1 2023 | 28 | $279.6M | 29,710,412 | 21 | 6 | 2 | 5.3% |
| Q4 2022 | 13 | $30.5M | 13,323,368 | 7 | 1 | 4 | 0.9% |
| Q3 2022 | 14 | $18.0M | 16,655,682 | 3 | 3 | 3 | 0.0% |
| Q2 2022 | 13 | $45.4M | 17,117,833 | 1 | 1 | 5 | 0.0% |
| Q1 2022 | 14 | $70.6M | 17,136,849 | 0 | 5 | 3 | 0.0% |
| Q4 2021 | 16 | $152.0M | 16,830,567 | 2 | 4 | 4 | 0.0% |
| Q3 2021 | 15 | $165.3M | 12,412,390 | 2 | 1 | 6 | 0.0% |
| Q2 2021 | 20 | $266.2M | 13,929,686 | 20 | 0 | 0 | 0.0% |