What does CUSIP 03940C100 represent in this 13F holders report?

CUSIP 03940C100 is the security identifier for ACLX - Arcellx, Inc. - Common Stock used to aggregate holder disclosures.

How many institutions held ACLX - Arcellx, Inc. - Common Stock in Q2 2023?

134 institutional investors reported ACLX - Arcellx, Inc. - Common Stock for Q2 2023. Use the holders table for investor-level position and value details.

Arcellx, Inc. - Common Stock (ACLX)

CUSIP: 03940C100

Q2 2023 13F Holders as of 30 Jun 2023

Type / Class: Equity / Common Stock
Shares outstanding: 58,974,400
Total 13F shares: 48,066,751
Share change: +2,494,096
Total reported value: $1,519,832,876
Put/Call ratio: 13%
Price per share: $31.62
Number of holders: 134
Value change: +$79,444,997
Number of buys: 99
Number of sells: 41

Quarterly Holders Quick Answers

What is CUSIP 03940C100?
CUSIP 03940C100 identifies ACLX - Arcellx, Inc. - Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q3 2023
Previous quarter: Q1 2023

Recent filing periods for CUSIP 03940C100:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of ACLX - Arcellx, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
NEA Partners 15, L.P.	3/4/5	10%+ Owner	— class O/S missing	4,745,262	$262,260,666	—	20 Dec 2022	3/4/5
New Enterprise Associates 15, L.P.	3/4/5	10%+ Owner	— class O/S missing	4,745,262	$262,260,666	—	20 Dec 2022	3/4/5
Novo Holdings A/S	3/4/5 13F	10%+ Owner · Company	2.1% from 13F	4,016,878	$222,004,412	—	08 Feb 2022	3/4/5 13F
SR ONE CAPITAL MANAGEMENT, LP	13F	Company	9.3%	5,500,007	$169,455,216	—	31 Mar 2023	13F
NEA Management Company, LLC	13F	Company	8%	4,745,262	$146,201,522	—	31 Mar 2023	13F
PERCEPTIVE ADVISORS LLC	13F	Company	6.5%	3,841,739	$118,363,979	—	31 Mar 2023	13F
Lewis T. "rusty" Williams	3/4/5	Director	— class O/S missing	2,095,114	$115,792,551	—	08 Feb 2022	3/4/5
SR ONE CAPITAL MANAGEMENT, LLC	3/4/5	10%+ Owner	— class O/S missing	1,658,780	$91,677,287	—	11 May 2023	3/4/5
FMR LLC	13F	Company	4.5%	2,683,090	$82,666,002	—	31 Mar 2023	13F
SUVRETTA CAPITAL MANAGEMENT, LLC	13F	Company	4.1%	2,398,321	$73,892,270	—	31 Mar 2023	13F
BlackRock Finance, Inc.	13F	Company	3.8%	2,222,357	$68,470,819	—	31 Mar 2023	13F
STATE STREET CORP	13F	Company	3.2%	1,874,456	$57,751,989	—	31 Mar 2023	13F
Paradigm Biocapital Advisors LP	13F	Company	3%	1,757,779	$54,157,171	—	31 Mar 2023	13F
Cormorant Asset Management, LP	13F	Company	2.7%	1,600,000	$49,296,000	—	31 Mar 2023	13F
JANUS HENDERSON GROUP PLC	13F	Company	2.7%	1,587,252	$48,869,412	—	31 Mar 2023	13F
CITADEL ADVISORS LLC	13F	Company	2.6%	1,514,896	$46,673,946	—	31 Mar 2023	13F
VANGUARD GROUP INC	13F	Company	2.4%	1,426,956	$43,964,514	—	31 Mar 2023	13F
GOLDMAN SACHS GROUP INC	13F	Company	2.2%	1,270,726	$39,151,068	—	31 Mar 2023	13F
Soleus Capital Management, L.P.	13F	Company	2.1%	1,248,147	$38,455,409	—	31 Mar 2023	13F
LORD, ABBETT & CO. LLC	13F	Company	1.8%	1,072,207	$33,035,000	—	31 Mar 2023	13F
PICTET ASSET MANAGEMENT SA	13F	Company	1.7%	1,028,210	$31,679,150	—	31 Mar 2023	13F
Samsara BioCapital, LLC	13F	Company	1.5%	909,579	$28,024,129	—	31 Mar 2023	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.95%	561,604	$17,303,030	—	31 Mar 2023	13F
JPMORGAN CHASE & CO	13F	Company	0.93%	549,197	$16,921,000	—	31 Mar 2023	13F
PFM Health Sciences, LP	13F	Company	0.89%	525,816	$16,200,391	—	31 Mar 2023	13F
S.c.a. Candriam	13F	Individual	0.76%	447,154	$12,680,655	—	31 Mar 2023	13F
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F	Company	0.64%	376,904	$11,612,412	—	31 Mar 2023	13F
BRAIDWELL LP	13F	Company	0.57%	333,800	$10,284,378	—	31 Mar 2023	13F
Vivo Capital, LLC	13F	Company	0.49%	290,713	$8,956,868	—	31 Mar 2023	13F
NORTHERN TRUST CORP	13F	Company	0.45%	266,164	$8,200,513	—	31 Mar 2023	13F
GREAT POINT PARTNERS LLC	13F	Company	0.44%	257,006	$7,918,355	—	31 Mar 2023	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.35%	207,251	$6,385,403	—	31 Mar 2023	13F
Affinity Asset Advisors, LLC	13F	Company	0.34%	202,834	$6,249,316	—	31 Mar 2023	13F
CLOUGH CAPITAL PARTNERS L P	13F	Company	0.33%	197,478	$6,084,297	—	31 Mar 2023	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.32%	188,255	$5,800,138	—	31 Mar 2023	13F
SPHERA FUNDS MANAGEMENT LTD.	13F	Company	0.28%	167,488	$5,160,305	—	31 Mar 2023	13F
Walleye Capital LLC	13F	Company	0.27%	160,443	$4,943,249	—	31 Mar 2023	13F
VOLORIDGE INVESTMENT MANAGEMENT, LLC	13F	Company	0.26%	155,153	$4,780,264	—	31 Mar 2023	13F
Altium Capital Management LLC	13F	Company	0.25%	150,000	$4,621,500	—	31 Mar 2023	13F
Parkman Healthcare Partners LLC	13F	Company	0.25%	147,646	$4,548,973	—	31 Mar 2023	13F
Rafferty Asset Management, LLC	13F	Company	0.24%	141,417	$4,357,058	—	31 Mar 2023	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.24%	139,626	$4,301,877	—	31 Mar 2023	13F
Bank of New York Mellon Corp	13F	Company	0.21%	125,021	$3,851,898	—	31 Mar 2023	13F
CAAS CAPITAL MANAGEMENT LP	13F	Company	0.21%	124,959	$3,849,987	—	31 Mar 2023	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.2%	120,798	$3,722,000	—	31 Mar 2023	13F
CITIGROUP INC	13F	Company	0.19%	113,603	$3,500,108	—	31 Mar 2023	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	0.19%	112,463	$3,464,985	—	31 Mar 2023	13F
MORGAN STANLEY	13F	Company	0.18%	108,398	$3,339,741	—	31 Mar 2023	13F
Informed Momentum Co LLC	13F	Company	0.18%	104,301	$3,213,514	—	31 Mar 2023	13F
Nuveen Asset Management, LLC	13F	Company	0.17%	98,489	$3,034,000	—	31 Mar 2023	13F

Institutional Holders of Arcellx, Inc. - Common Stock (ACLX) as of Q2 2023

As of 30 Jun 2023, Arcellx, Inc. - Common Stock (ACLX) was held by 134 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 48,066,751 shares. The largest 10 holders included FMR LLC, PERCEPTIVE ADVISORS LLC, SR ONE CAPITAL MANAGEMENT, LP, NEA Management Company, LLC, SUVRETTA CAPITAL MANAGEMENT, LLC, BlackRock Inc., Paradigm Biocapital Advisors LP, Cormorant Asset Management, LP, VANGUARD GROUP INC, and STATE STREET CORP. This page lists 134 institutional shareholders reporting positions in this security for the Q2 2023 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q2 2023 vs Q1 2023 Across Filers

Q1 2023 holders

115

Q2 2023 holders

134

Holder diff

Investor	Q1 2023 Shares	Q2 2023 Shares	Share Diff	Share Chg %	Q1 2023 Value $	Q2 2023 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.