Arcellx Ownership | Who Owns Arcellx?
Arcellx Ownership Summary
Arcellx is owned by 111.41% institutional investors, 2.29% insiders. Fmr is the largest institutional shareholder, holding 14.78% of ACLX shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.13% of its assets in Arcellx shares.
ACLX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Arcellx | 111.41% | 2.29% | -13.69% |
| Sector | Healthcare Stocks | 279.42% | 10.64% | -190.05% |
| Industry | Biotech Stocks | 64.05% | 10.69% | 25.27% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Fmr | 7.96M | 14.78% | $610.19M |
| Gilead sciences | 6.72M | 12.49% | $515.42M |
| Paradigm biocapital advisors lp | 4.37M | 8.12% | $335.26M |
| Blackrock | 3.52M | 6.67% | $194.07M |
| Nea management company | 3.75M | 6.66% | $246.63M |
| Vanguard group | 3.33M | 6.19% | $255.38M |
| Blackrock funding, inc. /de | 3.47M | 6.17% | $228.38M |
| Ra capital management | 3.04M | 5.40% | $199.96M |
| Vestal point capital, lp | 2.75M | 4.89% | $181.09M |
| Perceptive advisors | 2.48M | 4.41% | $163.18M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Aju ib investment | 1.05M | 75.07% | $68.98M |
| Sr one capital management, lp | 2.35M | 43.88% | $179.96M |
| Gilead sciences | 6.72M | 33.23% | $515.42M |
| Nea management company | 3.75M | 18.56% | $246.63M |
| Paradigm biocapital advisors lp | 4.37M | 11.66% | $335.26M |
| Vestal point capital, lp | 2.75M | 9.53% | $181.09M |
| Perceptive advisors | 2.48M | 6.05% | $163.18M |
| Affinity asset advisors | 495.00K | 4.45% | $32.60M |
| Great point partners | 100.00K | 4.28% | $6.58M |
| Stempoint capital lp | 201.45K | 4.26% | $13.27M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Gilead sciences | 6.72M | 33.23% | 6.72M |
| Fmr | 7.96M | 0.04% | 1.48M |
| Vanguard group | 3.33M | 0.00% | 868.00K |
| Decheng capital | 547.61K | 1.13% | 497.61K |
| Blackrock | 3.52M | 0.00% | 450.30K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Suvretta capital management | - | - | -689.95K |
| Blackrock funding, inc. /de | 3.47M | 0.00% | -499.38K |
| Janus henderson group | 1.56M | 0.06% | -454.86K |
| Perceptive advisors | 2.48M | 6.05% | -448.48K |
| Lord, abbett | 337.58K | 0.07% | -326.95K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Gilead sciences | 6.72M | 33.23% | 6.72M | $515.42M |
| Rock springs capital management lp | 186.31K | 0.76% | 186.31K | $12.27M |
| Baker bros. advisors lp | 166.82K | 0.11% | 166.82K | $10.99M |
| Schroder investment management group | 60.00K | 0.00% | 60.00K | $3.95M |
| Balyasny asset management | 54.79K | 0.01% | 54.79K | $3.61M |
Sold Out
| Holder | Change |
|---|---|
| Quantbot technologies lp | -1.00 |
| Ifp advisors | -2.00 |
| Principal securities | -3.00 |
| Ronald blue trust | -11.00 |
| Global retirement partners | -12.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2025 | 209 | -5.00% | 61,558,855 | 4.06% | 111 | 0.92% | 103 | -18.25% | 71 | 22.41% |
| Dec 31, 2024 | 218 | 8.46% | 58,110,509 | 17.41% | 107 | 1.28% | 123 | 14.95% | 59 | -3.28% |
| Sep 30, 2024 | 201 | 19.64% | 49,489,251 | -1.47% | 91 | 1.04% | 108 | 6.93% | 61 | 22.00% |
| Jun 30, 2024 | 165 | -10.33% | 50,204,759 | 6.85% | 95 | 1.18% | 99 | -8.33% | 49 | -15.52% |
| Mar 31, 2024 | 184 | 12.20% | 46,986,953 | 0.53% | 89 | 0.97% | 108 | 11.34% | 58 | 20.83% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 1.74M | 3.13% | -36.26K |
| Fidelity Growth Compy Commingled Pl S | 924.62K | 1.68% | 323.70K |
| iShares Russell 2000 ETF | 864.01K | 1.56% | -16.38K |
| American Funds SMALLCAP World A | 783.01K | 1.42% | 73.64K |
| Fidelity Growth Compy Commingled Pl O | 764.28K | 1.42% | - |
| Fidelity Growth Company Fund | 692.44K | 1.26% | 213.30K |
| SPDR® S&P Biotech ETF | 684.43K | 1.24% | 16.89K |
| Vanguard Small Cap Index | 668.59K | 1.21% | -4.27K |
| Fidelity Select Biotechnology | 571.90K | 1.04% | - |
| T. Rowe Price US Small-Cap Core Equity | 500.37K | 0.91% | -28.93K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jun 10, 2025 | Patel Kavita | - | Sell | $101.04K |
| May 27, 2025 | Gilson Michelle | CHIEF FINANCIAL OFFICER | Sell | $543.91K |
| May 27, 2025 | Gilson Michelle | CHIEF FINANCIAL OFFICER | Sell | $240.87K |
| May 20, 2025 | Patel Kavita | - | Sell | $87.64K |
| Apr 29, 2025 | Patel Kavita | - | Sell | $96.30K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | - | - |
| 2025 Q2 | - | 6 |
| 2025 Q1 | - | 34 |
| 2024 Q4 | - | 23 |
| 2024 Q3 | - | 24 |
ACLX Ownership FAQ
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