DaveManuel.com · Institutional Ownership · Who Owns It
AMBRX BIOPHARMA INC (AMAM)
Institutional ownership reported to the SEC as of Q4 2023, across 11 quarters.
70
Reporting holders
$921.9M
Reported value
0.5%
Calls
0.4%
Puts
+19
Holder change
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
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 incl. $2.1M options CALL | 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 incl. $1.4M options CALL+PUT | 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 |
| PRICE T ROWE ASSOCIATES INC /MD/ | $15.4M | 1,084,247 | 0.00% | 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 incl. $535.4K options CALL+PUT | 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 incl. $1.8M options CALL+PUT | 49,203 | 0.00% | new | NEW |
| ExodusPoint Capital Management, LP | $2.0M | 140,842 | 0.01% | 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 CALL+PUT | 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 |
| SIMPLEX TRADING, LLC | $1.1M incl. $969.0K options CALL+PUT | 7,657 | 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 |
| RENAISSANCE TECHNOLOGIES LLC | $768.0K | 53,900 | 0.00% | new | NEW |
| NWI MANAGEMENT LP | $764.0K | 53,645 | 0.02% | 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 |
| Virtu Financial LLC | $290.0K | 20,386 | 0.02% | new | NEW |
| GTS SECURITIES LLC | $269.1K CALL | 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 |
| Cutler Group LLC / CA | $35.0K incl. $2.0K options CALL+PUT | 2,380 | 0.00% | new | NEW |
| GAMMA Investing LLC | $13.7K | 491 | 0.00% | new | FIRST |
| US BANCORP \DE\ | $12.9K | 906 | 0.00% | new | NEW |
| Daiwa Securities Group Inc. | $4.0K | 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 | 70 | $921.9M | 64,142,181 | 70 | 0 | 0 | 0.9% |
| Q3 2023 | 51 | $590.5M | 49,416,240 | 19 | 16 | 8 | 3.8% |
| Q2 2023 | 45 | $797.6M | 47,920,404 | 19 | 13 | 10 | 1.1% |
| Q1 2023 | 33 | $365.8M | 39,283,471 | 24 | 8 | 3 | 4.2% |
| Q4 2022 | 19 | $41.0M | 17,921,109 | 9 | 1 | 6 | 0.7% |
| Q3 2022 | 14 | $18.0M | 16,655,682 | 3 | 3 | 3 | 0.0% |
| Q2 2022 | 12 | $45.2M | 17,055,437 | 1 | 1 | 4 | 0.0% |
| Q1 2022 | 13 | $70.3M | 17,066,849 | 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% |