Arcellx ($ACLX) Insider Trading & Smart Money Activity

Arcellx Inc · Biotechnology · Latest filing May 15, 2026

Arcellx Inc ($ACLX) has 8 13F position changes on file.

Insider buyers (12 mo)

0

Insider sellers (12 mo)

0

Net insider $ (12 mo)

$0

Congress trades (12 mo)

0

13F moves on file

8

Analyst ratings on file

0

ACLX insider buying and selling by quarter

Quarter	Insider buys	Insider sales	Congress buys / sales	13F added / cut
Q1 2026	0	0	0 / 0	0 / 0
Q2 2026	0	0	0 / 0	8 / 0
Q3 2026	0	0	0 / 0	0 / 0
Q4 2026	0	0	0 / 0	0 / 0

Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.

All ACLX insider, congress, 13F and analyst activity

All 13F

Date	Source	Who	Action	Shares	Value / amount	ΔOwn	1W	1M	6M	Filing	Story
May 15, 2026	13F	Verition Fund Management	New	+187.35K sh	$21.56M						Read
May 15, 2026	13F	Tudor Investment	Added	+416.56K sh	$53.23M						—
May 15, 2026	13F	Tudor Investment	Added	+416.56K sh	$53.23M						—
May 15, 2026	13F	Pentwater Capital Management	New	+2.87M sh	$330.25M						—
May 15, 2026	13F	Lmr Partners	New	+212.50K sh	$24.45M						—
May 15, 2026	13F	Lmr Partners	New	+212.50K sh	$24.45M						—
May 15, 2026	13F	Balyasny Asset Management L.P.	New	+479.76K sh	$55.21M						—
May 15, 2026	13F	Balyasny Asset Management L.P.	New	+479.76K sh	$55.21M						—

1W / 1M / 6M = how ACLX moved from the trade or filing date.

Institutions moving ACLX (13F)

• Tudor Investment2
• Lmr Partners2
• Balyasny Asset Management L.P.2
• Verition Fund Management1
• Pentwater Capital Management1

Frequently asked questions

Which institutions changed their ACLX positions?

Recent 13F filers moving the stock include Tudor Investment, Lmr Partners, Balyasny Asset Management L.P., Verition Fund Management and Pentwater Capital Management.

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Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.