Arcellx Ownership | Who Owns Arcellx?

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Arcellx Ownership Summary

Arcellx is owned by 95.16% institutional investors, 12.63% insiders. Fmr is the largest institutional shareholder, holding 12.30% of ACLX shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.55% of its assets in Arcellx shares.

ACLX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Arcellx	95.16%	12.63%	-7.79%
Sector	Healthcare Stocks	47.31%	8.01%	44.69%
Industry	Biotech Stocks	45.43%	7.81%	46.75%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Fmr	6.49M	12.30%	$358.04M
Perceptive advisors	3.89M	7.37%	$214.67M
Paradigm biocapital advisors lp	3.85M	7.29%	$212.38M
Nea management company	3.75M	7.10%	$206.70M
Blackrock	3.52M	6.67%	$194.07M
Sr one capital management, lp	2.35M	4.45%	$129.51M
Vanguard group	2.30M	4.35%	$126.73M
Janus henderson group	1.90M	3.61%	$104.98M
State street	1.76M	3.33%	$96.90M
Price t rowe associates inc /md/	1.63M	3.09%	$90.00M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Sr one capital management, lp	2.35M	40.55%	$129.51M
Nea management company	3.75M	15.55%	$206.70M
Paradigm biocapital advisors lp	3.85M	8.13%	$212.38M
Samsara biocapital	453.64K	5.24%	$25.04M
Great point partners	492.00K	5.20%	$27.15M
Perceptive advisors	3.89M	5.10%	$214.67M
Cormorant asset management, lp	1.52M	4.86%	$84.16M
Cutter capital management, lp	187.00K	3.12%	$10.32M
Suvretta capital management	1.52M	3.07%	$83.68M
Affinity asset advisors	460.00K	2.93%	$25.39M

Top Buyers

Holder	Shares	% Assets	Change
Ra capital management	1.60M	1.17%	1.60M
Fmr	6.49M	0.02%	1.09M
Vestal point capital, lp	675.00K	2.78%	575.00K
Blackrock	3.52M	0.00%	450.30K
Janus henderson group	1.90M	0.06%	380.31K

Top Sellers

Holder	Shares	% Assets	Change
Lord, abbett	873.84K	0.16%	-324.27K
Jpmorgan chase	261.36K	0.00%	-290.39K
Cormorant asset management, lp	1.52M	4.86%	-255.00K
Federated hermes	5.73K	0.00%	-225.93K
Voya investment management	215.24K	0.01%	-165.08K

New Positions

Holder	Shares	% Assets	Change	Value
Ra capital management	1.60M	1.17%	1.60M	$88.53M
Jacobs levy equity management	47.82K	0.01%	47.82K	$2.64M
Corebridge financial	23.19K	0.01%	23.19K	$1.28M
Mirae asset global etfs	22.75K	0.00%	22.75K	$1.25M
Handelsbanken fonder ab	10.30K	0.00%	10.30K	$568.00K

Sold Out

Holder	Change
Nelson, van denburg & campbell wealth management group	-19.00
Clear street markets	-42.00
Lindbrook capital	-85.00
Entrypoint capital	-142.00
Pacer advisors	-488.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
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%
Dec 31, 2023	164	19.71%	46,737,584	-1.77%	96	0.99%	97	29.33%	48	26.32%
Sep 30, 2023	137	-2.14%	47,577,709	-1.28%	98	0.93%	75	-25.74%	38	22.58%
Jun 30, 2023	140	17.65%	48,196,038	5.71%	103	1.08%	101	65.57%	31	-27.91%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	1.37M	2.55%	94.20K
Fidelity Select Biotechnology	1.15M	2.15%	-115.70K
iShares Russell 2000 ETF	1.11M	2.06%	-2.49K
Fidelity Growth Compy Commingled Pl S	768.73K	1.43%	4.45K
Fidelity Growth Compy Commingled Pl O	764.28K	1.42%	-
T. Rowe Price Health Sciences	757.45K	1.41%	172.55K
SPDR® S&P Biotech ETF	614.76K	1.14%	6.80K
Vanguard Institutional Extnd Mkt Idx Tr	572.64K	1.07%	30.12K
Fidelity Growth Company Fund	558.86K	1.04%	-1.19K
Fidelity Small Cap Growth	540.97K	1.01%	-1.42K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Nov 12, 2024	Patel Kavita	-	Sell	$159.50K
Nov 08, 2024	Gilson Michelle	CHIEF FINANCIAL OFFICER	Sell	$187.65K
Nov 08, 2024	Gilson Michelle	CHIEF FINANCIAL OFFICER	Sell	$972.55K
Nov 08, 2024	Gilson Michelle	CHIEF FINANCIAL OFFICER	Sell	$81.97K
Nov 08, 2024	Patel Kavita	-	Sell	$587.64K

Insider Transactions Trends

Date	Buy	Sell
2024 Q4	-	12
2024 Q3	-	24
2024 Q2	-	16
2024 Q1	-	22
2023 Q4	-	4

ACLX Ownership FAQ

Who Owns Arcellx?

Arcellx shareholders are primarily institutional investors at 95.16%, followed by 12.63% insiders and -7.79% retail investors. The average institutional ownership in Arcellx's industry, Biotech Stocks , is 45.43%, which Arcellx exceeds.

Who owns the most shares of Arcellx?

Arcellx’s largest shareholders are Fmr (6.49M shares, 12.30%), Perceptive advisors (3.89M shares, 7.37%), and Paradigm biocapital advisors lp (3.85M shares, 7.29%). Together, they hold 26.96% of Arcellx’s total shares outstanding.

Does Blackrock own Arcellx?

Yes, BlackRock owns 6.67% of Arcellx, totaling 3.52M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 194.07M$. In the last quarter, BlackRock increased its holdings by 450.3K shares, a 14.69% change.

Who is Arcellx’s biggest shareholder by percentage of total assets invested?

Sr one capital management, lp is Arcellx’s biggest shareholder by percentage of total assets invested, with 40.55% of its assets in 2.35M Arcellx shares, valued at 129.51M$.

Who is the top mutual fund holder of Arcellx shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Arcellx shares, with 2.55% of its total shares outstanding invested in 1.37M Arcellx shares.

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