Arcellx, Inc.
ACLXDelisted Apr 28, 2026- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001786205
Arcellx, Inc. was delisted on Apr 28, 2026; its insiders filed their last Form 4 on Apr 28, 2026; 240 institutions reported holding it in 13F filings for Q1 2026, worth $6.52B in total; Soros Fund Management was the only superinvestor holding it.
13F holders, Q1 2024
Institutional positions in Arcellx, Inc. as of Mar 31, 2024. 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
- Institutional holders
- 183
- +28 vs. Q4 2023
- Shares held
- 47.0M
- +337.3K (+0.7%) vs. Q4 2023
- Total value
- $3.27B
- +$678.4M (+26.2%) vs. Q4 2023
- New holders
- 42
- 69 more added
- Sold out
- 14
- 58 more reduced
1 institution that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ACLX 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 | 2 | $3.43M |
| Q1 2026 | 240 | $6.52B |
| Q4 2025 | 218 | $4.34B |
| Q3 2025 | 209 | $5.18B |
| Q2 2025 | 203 | $4.01B |
| Q1 2025 | 198 | $4.04B |
| Q4 2024 | 211 | $4.54B |
| Q3 2024 | 186 | $4.13B |
| Q2 2024 | 167 | $2.77B |
| Q1 2024 | 183 | $3.27B |
| Q4 2023 | 156 | $2.59B |
| Q3 2023 | 136 | $1.71B |
| Q2 2023 | 138 | $1.52B |
| Q1 2023 | 117 | $1.40B |
| Q4 2022 | 125 | $1.30B |
| Q3 2022 | 74 | $781.8M |
| Q2 2022 | 68 | $621.5M |
| Q1 2022 | 49 | $357.9M |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2024
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wellington Management Group LLP | 15,697 | $1.09M | 0.00% | +1,628+11.6% | Added |
| Advantage Alpha Capital Partners LP | 15,475 | $1.08M | 0.20% | −7,198−31.7% | Reduced |
| SEI Investments Co | 14,836 | $1.03M | 0.00% | +3,951+36.3% | Added |
| Entropy Technologies, LP | 14,526 | $1.01M | 0.11% | −890−5.8% | Reduced |
| Ameriprise Financial Inc | 14,243 | $990.6K | 0.00% | +10,488+279.3% | Added |
| HighTower Advisors, LLC | 12,440 | $864.0K | 0.00% | −7−0.1% | Reduced |
| SG Americas Securities, LLC | 12,253 | $852.0K | 0.00% | −16,532−57.4% | Reduced |
| AQR Capital Management LLC | 12,134 | $843.9K | 0.00% | +1,072+9.7% | Added |
| Jasper Ridge Partners, L.P. | 11,820 | $822.1K | 0.03% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 11,556 | $803.7K | 0.00% | +11,556 | New |
| Mirae Asset Global Investments Co., Ltd. | 18,629 | $775.6K | 0.00% | −3,738−16.7% | Reduced |
| STRS Ohio | 10,600 | $737.0K | 0.00% | −1,700−13.8% | Reduced |
| ProShare Advisors LLC | 10,590 | $736.5K | 0.00% | +1,131+12.0% | Added |
| China Universal Asset Management Co., Ltd. | 10,177 | $707.8K | 0.09% | +4,545+80.7% | Added |
| Y-Intercept (Hong Kong) Ltd | 9,420 | $655.2K | 0.05% | +4,544+93.2% | Added |
| Jump Financial, LLC | 9,310 | $647.5K | 0.02% | −5,873−38.7% | Reduced |
| Danske Bank A/S | 8,990 | $625.3K | 0.00% | +8,990 | New |
| LPL Financial LLC | 8,452 | $587.8K | 0.00% | +1,090+14.8% | Added |
| High Net Worth Advisory Group LLC | 8,000 | $556.4K | 0.18% | +1,000+14.3% | Added |
| Acadian Asset Management LLC | 7,882 | $548.0K | 0.00% | +4,774+153.6% | Added |
| Arizona State Retirement System | 7,849 | $545.9K | 0.00% | −263−3.2% | Reduced |
| Eschler Asset Management LLP | 6,787 | $472.0K | 0.31% | +6,787 | New |
| Teacher Retirement System of Texas | 6,356 | $442.0K | 0.00% | −350−5.2% | Reduced |
| Engineers Gate Manager LP | 6,288 | $437.3K | 0.01% | −5,087−44.7% | Reduced |
| Mariner, LLC | 6,071 | $422.2K | 0.00% | +1,372+29.2% | Added |
| E Fund Management Co., Ltd. | 5,986 | $416.3K | 0.03% | −26−0.4% | Reduced |
| Wexford Capital LP | 5,839 | $406.1K | 0.08% | +5,839 | New |
| Raymond James & Associates | 5,707 | $396.9K | 0.00% | +5,707 | New |
| Oxford Asset Management LLP | 5,305 | $369.0K | 0.40% | +5,305 | New |
| Gotham Asset Management, LLC | 5,257 | $365.6K | 0.01% | +6+0.1% | Added |
| HSBC Holdings PLC | 5,166 | $359.2K | 0.00% | +5,166 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,071 | $352.7K | 0.00% | −1,334−20.8% | Reduced |
| Advisors Asset Management, Inc. | 4,197 | $291.9K | 0.01% | +3,798+951.9% | Added |
| Exchange Traded Concepts, LLC | 4,096 | $284.9K | 0.01% | −145−3.4% | Reduced |
| XTX Topco Ltd | 4,062 | $282.5K | 0.04% | +4,062 | New |
| Farallon Capital Management, L.L.C. | 4,000 | $278.2K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 3,970 | $276.1K | 0.01% | 00.0% | Unchanged |
| Pictet Asset Management Holding SA | 3,519 | $244.7K | 0.00% | −54,726−94.0% | Reduced |
| Arrowstreet Capital, Limited Partnership | 3,500 | $243.0K | 0.00% | +3,500 | New |
| Prudential Financial Inc | 3,484 | $242.3K | 0.00% | +3,484 | New |
| Simplicity Wealth,LLC | 3,331 | $231.7K | 0.01% | +3,331 | New |
| Bleakley Financial Group, LLC | 3,331 | $231.7K | 0.01% | +3,331 | New |
| Marshall Wace, LLP | 3,300 | $229.5K | 0.00% | +3,300 | New |
| Corton Capital Inc. | 3,115 | $216.6K | 0.08% | −5,284−62.9% | Reduced |
| NEOS Investment Management LLC | 3,053 | $212.3K | 0.01% | +3,053 | New |
| Advisory Alpha, LLC | 3,000 | $208.7K | 0.01% | +3,000 | New |
| Envestnet Asset Management Inc | 2,948 | $205.0K | 0.00% | +2,948 | New |
| Mackenzie Financial Corp | 2,912 | $202.5K | 0.00% | +2,912 | New |
| Metropolitan Life Insurance Co | 2,107 | $146.5K | 0.01% | −189−8.2% | Reduced |
| Lazard Asset Management LLC | 1,779 | $123.0K | 0.00% | −308−14.8% | Reduced |
| Virtus ETF Advisers LLC | 1,688 | $117.4K | 0.06% | −117−6.5% | Reduced |
| US Bancorp | 1,539 | $107.0K | 0.00% | +1,367+794.8% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 1,498 | $104.2K | 0.03% | +789+111.3% | Added |
| Harvest Fund Management Co., Ltd | 1,391 | $97.0K | 0.01% | +1,391 | New |
| Royal Bank of Canada | 1,290 | $90.0K | 0.00% | −10,684−89.2% | Reduced |
| Amalgamated Bank | 1,293 | $90.0K | 0.00% | −4,228−76.6% | Reduced |
| Plato Investment Management Ltd | 729 | $50.7K | 0.01% | +729 | New |
| National Bank of Canada | 1,000 | $49.7K | 0.00% | +1,000 | New |
| KBC Group NV | 666 | $46.0K | 0.00% | +666 | New |
| Point72 (DIFC) Ltd | 644 | $44.8K | 0.00% | +644 | New |
| State of Wyoming | 629 | $43.7K | 0.01% | +629 | New |
| Pacer Advisors, Inc. | 593 | $41.2K | 0.00% | +593 | New |
| GWM Advisors LLC | 527 | $36.7K | 0.00% | +527 | New |
| Nisa Investment Advisors, LLC | 456 | $31.7K | 0.00% | +28+6.5% | Added |
| Tower Research Capital LLC (TRC) | 396 | $27.5K | 0.00% | −4,794−92.4% | Reduced |
| Turim 21 Investimentos Ltda. | 179 | $12.4K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 176 | $12.0K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 152 | $10.6K | 0.00% | +37+32.2% | Added |
| EntryPoint Capital, LLC | 142 | $9.88K | 0.01% | −508−78.2% | Reduced |
| Comerica Bank | 105 | $7.29K | 0.00% | +24+29.6% | Added |
| Lindbrook Capital, LLC | 85 | $5.91K | 0.00% | +85 | New |
| The PNC Financial Services Group, Inc. | 57 | $3.96K | 0.00% | +57 | New |
| Clear Street Markets LLC | 42 | $3.00K | 0.00% | +42 | New |
| Fortitude Family Office, LLC | 38 | $2.64K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 28 | $1.95K | 0.00% | −19−40.4% | Reduced |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 19 | $1.32K | 0.00% | +19 | New |
| CWM, LLC | 11 | $1.00K | 0.00% | 00.0% | Unchanged |
| Institutional & Family Asset Management, LLC | 8 | $556 | 0.00% | +8 | New |
| Bell Investment Advisors, Inc | 7 | $487 | 0.00% | +7 | New |
| Farther Finance Advisors, LLC | 6 | $402 | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 5 | $348 | 0.00% | +5 | New |
| Principal Securities, Inc. | 2 | $139 | 0.00% | +2 | New |
| Covestor Ltd | 3 | $0 | 0.00% | 00.0% | Unchanged |
| Deep Track Capital, LP | 0 | $0 | 0.00% | −725,145−100.0% | Sold out |
| Caas Capital Management LP | 0 | $0 | 0.00% | −124,959−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −61,100−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −17,903−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −12,725−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −10,850−100.0% | Sold out |
| Advisory Research Inc | 0 | $0 | 0.00% | −9,530−100.0% | Sold out |
| Globeflex Capital L P | 0 | $0 | 0.00% | −8,732−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −6,791−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −6,521−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −5,481−100.0% | Sold out |
| Oracle Alpha Inc. | 0 | $0 | 0.00% | −3,674−100.0% | Sold out |
| Gradient Investments LLC | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Able Wealth Management LLC | 0 | $0 | 0.00% | −22−100.0% | Sold out |
| Putnam Investments LLC | – | – | – | – | Not filed |