Ambrx Biopharma, Inc.
AMAMDelisted Mar 7, 2024- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001990550
Ambrx Biopharma, Inc. was delisted on Mar 7, 2024; its insiders filed their last Form 4 on Mar 7, 2024; 68 institutions reported holding it in 13F filings for Q4 2023, worth $912.7M in total; no superinvestor held it.
13F holders, Q4 2023
Institutional positions in Ambrx Biopharma, Inc. as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
AMAM is no longer listed, so this page shows Q4 2023. 13F filings for later quarters list far fewer holders.
- Institutional holders
- 68
- +25 vs. Q3 2023
- Shares held
- 64.1M
- +14.7M (+29.8%) vs. Q3 2023
- Total value
- $912.7M
- +$344.7M (+60.7%) vs. Q3 2023
- New holders
- 34
- 19 more added
- Sold out
- 9
- 13 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AMAM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 0 | $0 |
| Q1 2026 | 0 | $0 |
| Q4 2025 | 0 | $0 |
| Q3 2025 | 0 | $0 |
| Q2 2025 | 0 | $0 |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 68 | $912.7M |
| Q3 2023 | 44 | $568.3M |
| Q2 2023 | 42 | $788.8M |
| Q1 2023 | 30 | $330.7M |
| Q4 2022 | 18 | $40.7M |
| Q3 2022 | 16 | $18.0M |
| Q2 2022 | 14 | $45.4M |
| Q1 2022 | 14 | $70.6M |
| Q4 2021 | 16 | $152.0M |
| Q3 2021 | 15 | $165.3M |
| Q2 2021 | 20 | $266.2M |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2023
Shares, value and share of portfolio for each institution holding Ambrx Biopharma, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Darwin Global Management, Ltd. | 16,688,636 | $237.6M | 46.64% | 00.0% | Unchanged |
| Cormorant Asset Management, LP | 11,231,000 | $159.9M | 7.66% | +1,307,311+13.2% | Added |
| Paradigm Biocapital Advisors LP | 4,352,689 | $62.0M | 2.90% | +864,093+24.8% | Added |
| D. E. Shaw & Co., Inc. | 4,240,486 | $60.4M | 0.09% | +235,973+5.9% | Added |
| Deep Track Capital, LP | 3,710,412 | $52.8M | 1.85% | +3,710,412 | New |
| Nextech Invest AG | 3,129,300 | $44.6M | 8.30% | +3,129,300 | New |
| Balyasny Asset Management LLC | 2,154,700 | $30.7M | 0.09% | +2,154,700 | New |
| Logos Global Management LP | 2,100,000 | $29.9M | 3.33% | +1,985,000+1,726.1% | Added |
| VR Adviser, LLC | 2,070,000 | $29.5M | 2.02% | 00.0% | Unchanged |
| Citadel Advisors LLC | 2,042,212 | $29.1M | 0.03% | +1,273,387+165.6% | Added |
| FMR LLC | 1,474,258 | $21.0M | 0.00% | −286,800−16.3% | Reduced |
| Vanguard Group Inc | 1,399,642 | $19.9M | 0.00% | +1,399,642 | New |
| Woodline Partners LP | 1,255,148 | $17.9M | 0.19% | +1,255,148 | New |
| Price T Rowe Associates Inc | 1,084,247 | $15.4M | 0.00% | +262,683+32.0% | Added |
| WuXi AppTec Co., Ltd. | 1,000,000 | $14.2M | 36.92% | +1,000,000 | New |
| BlackRock Inc. | 501,604 | $7.14M | 0.00% | +501,604 | New |
| Ghost Tree Capital, LLC | 475,000 | $6.76M | 3.89% | −50,000−9.5% | Reduced |
| Millennium Management LLC | 432,709 | $6.16M | 0.01% | −31,924−6.9% | Reduced |
| Goldman Sachs Group Inc | 399,648 | $5.69M | 0.00% | +399,648 | New |
| Ally Bridge Group (NY) LLC | 385,383 | $5.49M | 3.95% | +104,294+37.1% | Added |
| Federated Hermes, Inc. | 330,949 | $4.71M | 0.01% | −2,064,918−86.2% | Reduced |
| Macquarie Group Ltd | 300,000 | $4.27M | 0.00% | +50,000+20.0% | Added |
| OrbiMed Advisors LLC | 296,000 | $4.22M | 0.08% | +296,000 | New |
| Jane Street Group, LLC | 295,642 | $4.21M | 0.01% | +295,642 | New |
| Schonfeld Strategic Advisors LLC | 263,743 | $3.76M | 0.03% | +263,743 | New |
| Alliancebernstein L.P. | 258,364 | $3.68M | 0.00% | +211,068+446.3% | Added |
| Monashee Investment Management LLC | 207,500 | $2.95M | 0.52% | +137,500+196.4% | Added |
| HighVista Strategies LLC | 203,122 | $2.89M | 1.05% | +9,421+4.9% | Added |
| Barclays PLC | 199,950 | $2.85M | 0.00% | +199,950 | New |
| ExodusPoint Capital Management, LP | 140,842 | $2.01M | 0.02% | −352,551−71.5% | Reduced |
| TD Asset Management Inc | 140,256 | $2.00M | 0.00% | +29,800+27.0% | Added |
| StemPoint Capital LP | 126,101 | $1.80M | 0.48% | +126,101 | New |
| Lighthouse Investment Partners, LLC | 88,925 | $1.27M | 0.09% | +88,925 | New |
| Parkman Healthcare Partners LLC | 87,678 | $1.25M | 0.18% | −62,322−41.5% | Reduced |
| Geode Capital Management, LLC | 81,157 | $1.16M | 0.00% | +31,017+61.9% | Added |
| Perceptive Advisors LLC | 78,811 | $1.12M | 0.03% | +78,811 | New |
| Manufacturers Life Insurance Company, The | 77,472 | $1.10M | 0.00% | +18,190+30.7% | Added |
| Royal Bank of Canada | 70,094 | $998.0K | 0.00% | +63,594+978.4% | Added |
| Connective Capital Management, LLC | 58,189 | $828.6K | 0.70% | +58,189 | New |
| HealthInvest Partners AB | 57,847 | $823.7K | 0.64% | +57,847 | New |
| Renaissance Technologies LLC | 53,900 | $768.0K | 0.00% | +53,900 | New |
| Nwi Management LP | 53,645 | $764.0K | 0.15% | −107,290−66.7% | Reduced |
| Saturn V Capital Management LLC | 52,781 | $751.6K | 0.29% | +52,781 | New |
| State Street Corp | 50,015 | $712.2K | 0.00% | −385−0.8% | Reduced |
| Susquehanna International Group, LLP | 49,203 | $700.7K | 0.00% | +49,203 | New |
| Altitude Crest Partners Inc. | 43,100 | $613.7K | 0.41% | +43,100 | New |
| Sierra Summit Advisors LLC | 37,237 | $530.3K | 0.15% | +37,237 | New |
| Bank of America Corp | 36,733 | $523.1K | 0.00% | +36,233+7,246.6% | Added |
| Fred Alger Management, LLC | 32,886 | $468.3K | 0.00% | +32,886 | New |
| Morgan Stanley | 25,276 | $359.9K | 0.00% | +705+2.9% | Added |
| Virtu Financial LLC | 20,386 | $290.0K | 0.02% | +20,386 | New |
| Citigroup Inc | 18,774 | $267.3K | 0.00% | +18,774 | New |
| Bayesian Capital Management, LP | 15,804 | $225.0K | 0.02% | +15,804 | New |
| Squarepoint Ops LLC | 15,470 | $220.3K | 0.00% | −6,662−30.1% | Reduced |
| Old Well Partners, LLC | 14,400 | $205.1K | 0.19% | +14,400 | New |
| Engineers Gate Manager LP | 12,388 | $176.4K | 0.01% | +12,388 | New |
| JPMorgan Chase & Co | 12,312 | $175.3K | 0.00% | +12,312 | New |
| Tudor Investment Corp Et Al | 10,800 | $153.8K | 0.00% | +10,800 | New |
| Mirabella Financial Services LLP | 10,040 | $143.0K | 0.02% | +10,040 | New |
| Simplex Trading, LLC | 7,657 | $109.0K | 0.00% | −60,894−88.8% | Reduced |
| China Universal Asset Management Co., Ltd. | 7,303 | $104.0K | 0.02% | +7,303 | New |
| Virtus ETF Advisers LLC | 6,878 | $97.9K | 0.06% | +85+1.3% | Added |
| Tower Research Capital LLC (TRC) | 5,614 | $79.9K | 0.00% | +5,379+2,288.9% | Added |
| UBS Group AG | 3,840 | $54.7K | 0.00% | −1,734−31.1% | Reduced |
| Cutler Group LP | 2,380 | $33.0K | 0.00% | −420−15.0% | Reduced |
| GAMMA Investing LLC | 491 | $13.7K | 0.00% | +491 | New |
| US Bancorp | 906 | $12.9K | 0.00% | −112−11.0% | Reduced |
| Daiwa Securities Group Inc. | 258 | $4.00K | 0.00% | +258 | New |
| Commodore Capital LP | 0 | $0 | 0.00% | −3,518,556−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −486,562−100.0% | Sold out |
| First Manhattan Co | 0 | $0 | 0.00% | −135,003−100.0% | Sold out |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −47,433−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −45,531−100.0% | Sold out |
| Apis Capital Advisors, LLC | 0 | $0 | 0.00% | −34,000−100.0% | Sold out |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 0 | $0 | 0.00% | −31,735−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −2,155−100.0% | Sold out |
| Legal & General Group Plc | 0 | $0 | 0.00% | −1,381−100.0% | Sold out |
| Innovis Asset Management LLC | – | – | – | – | Not filed |