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

CUSIP 03940C100 is the security identifier for ACLX - Arcellx, Inc. - Common Stock, $0.001 par value per share used to aggregate holder disclosures.

How many institutions held ACLX - Arcellx, Inc. - Common Stock, $0.001 par value per share in Q4 2023?

154 institutional investors reported ACLX - Arcellx, Inc. - Common Stock, $0.001 par value per share for Q4 2023. Use the holders table for investor-level position and value details.

Arcellx, Inc. - Common Stock, $0.001 par value per share (ACLX)

CUSIP: 03940C100

Q4 2023 13F Holders as of 31 Dec 2023

Security type / class: Equity / Common Stock, $0.001 par value per share
Total 13F shares: 46,737,558
Total 13F value: $2,593,995,956
Share change: -1,245,713
Put/Call ratio: 28%
SEC-reported price per share: $55.50
Number of holders: 154
Value change: -$29,980,183
Number of buys: 86
Number of sells: 63
Shares outstanding: 100

Security key

03940C100

Report period

Q4 2023

Institutions

154

Top holders

ACLX full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2026 Arcellx, Inc. SEC filings Arcellx, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 03940C100

Newer quarter: Q3 2026

Recent filing periods:

Q3 2026

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

GILEAD SCIENCES, INC.

Disclosed value leader

GILEAD SCIENCES, INC.

Comparable rows

0/15

Latest evidence

28 Dec 2023

3/4/5 13F Highest disclosed value: $371,444,668 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

GILEAD SCIENCES, INC. has the largest disclosed position value at $371.44M.

0 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 GILEAD SCIENCES, INC.'s linked filing trail.

Disclosed position value Top 5

GILEAD SCIENCES, INC. $371.44M

NEA Partners 15, L.P. $262.26M

New Enterprise Associates 15, L.P. $262.26M

Novo Holdings A/S $222M

SR ONE CAPITAL MANAGEMENT, LLC $91.68M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
GILEAD SCIENCES, INC.	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$371,444,668 6,720,803 shares	—	28 Dec 2023
NEA Partners 15, L.P.	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$262,260,666 4,745,262 shares	—	20 Dec 2022
New Enterprise Associates 15, L.P.	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$262,260,666 4,745,262 shares	—	20 Dec 2022
Novo Holdings A/S	3/4/5 13F 10%+ Owner · Company 3/4/5 13F	— denominator unverified	$222,004,412 4,016,878 shares	—	08 Feb 2022
SR ONE CAPITAL MANAGEMENT, LLC	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$91,677,287 1,658,780 shares	—	11 May 2023
Mohamad Makhzoumi	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$15,641 283 shares	—	20 Dec 2022

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 Q4 2023

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

154

46,737,558

Rows available

154

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 Q4 2023 vs Q3 2023 Across Filers

Q3 2023 holders

132

Q4 2023 holders

154

Holder diff

Investor	Q3 2023 Shares	Q4 2023 Shares	Share Diff	Share Chg %	Q3 2023 value	Q4 2023 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend