ACLXGBX

Arcellx Inc
UnclassifiedEOCUSIP 03940C100◍ Confluence graph
Tracked 13F Holders
127
-196 QoQ
13F Value (tracked)
$5.1B
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
0
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)38 adding · 15 trimming
Insider net (180d)$0

Who owns ACLXGBX?

127 tracked 13F filers

127 tracked 13F filers disclose a position in ACLXGBX as of the latest SEC 13F filings, a combined $5.1B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
1 source-reported value row is withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1GILEAD SCIENCES, INC.
$771.7M
6.7M
Held
Q1 2026
2Paradigm Biocapital Advisors LP
$663.0M
5.8M
+0.9%
Added · +50K sh
Q1 2026
3BlackRock, Inc.
$453.0M
3.9M
+11%
Added · +396K sh
Q1 2026
4NEA Management Company, LLC
$349.7M
3.0M
Held
Q1 2026
5Pentwater Capital Management LP
$329.5M
2.9M
New
+2.9M sh
Q1 2026
6VANGUARD CAPITAL MANAGEMENT LLC
$278.5M
2.4M
First observed position
No prior filed position
Q1 2026
7VANGUARD PORTFOLIO MANAGEMENT LLC
$278.4M
2.4M
First observed position
No prior filed position
Q1 2026
8FIL Ltd
$268.6M
2.3M
New
+2.3M sh
Q1 2026
9HBK INVESTMENTS L P
$261.6M
2.3M
New
+2.3M sh
Q1 2026
10T. Rowe Price Investment Management, Inc.
Withheld
2.3M
−79%
Reduced · −8.3M sh
Q1 2026
11GOLDMAN SACHS GROUP INC
$150.7M
1.3M
+96%
Added · +644K sh
Q1 2026
12MORGAN STANLEY
$106.3M
926K
+79%
Added · +407K sh
Q1 2026
13JPMORGAN CHASE & CO
$68.1M
594K
−59%
Reduced · −861K sh
Q1 2026
14DAVIDSON KEMPNER CAPITAL MANAGEMENT LP
$64.3M
560K
New
+560K sh
Q1 2026
15ALLIANCEBERNSTEIN L.P.
$35.5M
544K
13×
Added · +503K sh
Q1 2026
16TIG Advisors, LLC
$62.2M
541K
New
+541K sh
Q1 2026
17MILLENNIUM MANAGEMENT LLC
$57.7M
503K
57×
Added · +494K sh
Q1 2026
18BALYASNY ASSET MANAGEMENT L.P.
$55.1M
480K
New
+480K sh
Q1 2026
19TUDOR INVESTMENT CORP ET AL
$53.1M
463K
10×
Added · +417K sh
Q1 2026
20BANK OF AMERICA CORP /DE/
$51.9M
452K
+5.7%
Added · +25K sh
Q1 2026
21ALPINE ASSOCIATES MANAGEMENT INC.
$43.4M
378K
New
+378K sh
Q1 2026
22Affinity Asset Advisors, LLC
$41.7M
363K
−31%
Reduced · −161K sh
Q1 2026
23NORTHERN TRUST CORP
$40.2M
350K
+8.8%
Added · +28K sh
Q1 2026
24CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$39.7M
346K
+1.8%
Added · +6K sh
Q1 2026
25VANGUARD FIDUCIARY TRUST CO
$35.4M
309K
First observed position
No prior filed position
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is ACLXGBX being bought or sold by institutions?

Last quarter, 27 funds opened a new position in ACLXGBX and 11 added to an existing one, while 15 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
27
funds
Added
11
funds
Reduced
15
funds
Exited
0
funds

Funds that own ACLXGBX also own

CompanyCo-held byCombined value
ELECTRONIC ARTS INCEA72 funds$8.8B
WARNER BROS DISCOVERY INCWBD72 funds$8.2B
APELLIS PHARMACEUTICALS INCAPLSUSD68 funds$1.4B
AMICUS THERAPEUTICS INCAM667 funds$1.6B
HOLOGIC INCHO166 funds$4.7B
TERNS PHARMACEUTICALS INC43066 funds$1.6B
MASIMO CORPMASI65 funds$2.5B
BROADCOM INCAVGO63 funds$87.3B
NORFOLK SOUTHERN CORPNSC63 funds$7.6B
MICROSOFT CORPMSFT62 funds$147.8B
BOSTON SCIENTIFIC CORPBSX62 funds$6.8B
KENVUE INCKVUE62 funds$4.7B

Ranked by how many of ACLXGBX's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.

Institutional ownership over time

1 funds-134 since Q3 2024
099197Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $1K

Recent filings

0 shown

No filings captured for this ticker in the live stream yet.

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Ask your agent what changed in ACLXGBX

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

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Tell me what changed, whether insider activity
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13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ACLXGBX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.