Security key
03940C100
Arcellx, Inc. - Common Stock, $0.001 par value per share (ACLX)
CUSIP: 03940C100
Q3 2024 13F Holders as of 30 Sep 2024
- Security type / class
- Equity / Common Stock, $0.001 par value per share
- Total 13F shares
- 49,489,073
- Total 13F value
- $4,134,912,072
- Share change
- -1,488,222
- Put/Call ratio
- 41%
- SEC-reported price per share
- $83.51
- Number of holders
- 185
- Value change
- -$113,389,722
- Number of buys
- 105
- Number of sells
- 77
- Shares outstanding
- 100
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2024
Institutions
185
Top holders
10
ACLX full security history
Ownership snapshot
Full 13F holder table
Arcellx, Inc. SEC filings
Arcellx, Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of ACLX - Arcellx, Inc. - Common Stock, $0.001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
FMR LLC
Disclosed value leader
FMR LLC
Comparable rows
15/15
Latest evidence
30 Jun 2024
13F
Lead comparable stake: 6487334%
Showing 1-6 of 15 holder rows.
Quick read
FMR LLC leads the comparable SEC ownership view at 6487334%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens FMR LLC's linked filing trail.
Comparable ownership
Top 5
FMR LLC
6487334%
PERCEPTIVE ADVISORS LLC
3889739%
Paradigm Biocapital Advisors LP
3848095%
NEA Management Company, LLC
3745262%
BlackRock Finance, Inc.
3516364%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| FMR LLC |
13F
Company
|
6487334%
|
$358,035,978
6,487,334 shares
|
— | 30 Jun 2024 |
| PERCEPTIVE ADVISORS LLC |
13F
Company
|
3889739%
|
$214,674,695
3,889,739 shares
|
— | 30 Jun 2024 |
| Paradigm Biocapital Advisors LP |
13F
Company
|
3848095%
|
$212,376,363
3,848,095 shares
|
— | 30 Jun 2024 |
| NEA Management Company, LLC |
13F
Company
|
3745262%
|
$206,701,010
3,745,262 shares
|
— | 30 Jun 2024 |
| BlackRock Finance, Inc. |
13F
Company
|
3516364%
|
$194,068,129
3,516,364 shares
|
— | 30 Jun 2024 |
| SR ONE CAPITAL MANAGEMENT, LP |
13F
Company
|
2346630%
|
$129,510,510
2,346,630 shares
|
— | 30 Jun 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2024
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
185
Shares
49,489,073
Rows available
185
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2024 vs Q2 2024 Across Filers
Q2 2024 holders
164
Q3 2024 holders
185
Holder diff
21
| Investor | Q2 2024 Shares | Q3 2024 Shares | Share Diff | Share Chg % | Q2 2024 value | Q3 2024 value | Value change | Value Chg % |
|---|