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JANUS HENDERSON GROUP PLC

Position in ACLX — Arcellx, Inc.

CIK 1274173 LONDON, X0

Position in ACLX

as of Mar 31, 2026 · filed May 18, 2026
Position Value
$10,365,949
-$49,590,536 QoQ
Shares Held
90,280
-90.2% QoQ
Ownership
0.154%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2022
16 quarters on record
Voting authority Sole 0% Shared 50% None 50%

Common Shares in ACLX Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

JANUS HENDERSON GROUP PLC holds $15,891,244,813 across 182 Biotechnology names. ACLX ranks #91 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ACLX

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16 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $10,365,949 90,280
2025-12-31 $59,956,485 919,578
2025-09-30 $83,242,913 1,013,921
2025-06-30 $67,402,873 1,023,582
2025-03-31 $99,088,405 1,510,494
2024-12-31 $119,413,384 1,557,092
2024-09-30 $168,017,943 2,011,950
2024-06-30 $105,005,486 1,902,618
2024-03-31 $105,876,590 1,522,309
2023-12-31 $85,370,654 1,538,210
2023-09-30 $63,702,714 1,775,438
2023-06-30 $55,469,289 1,754,247
2023-03-31 $48,903,232 1,587,252
2022-12-31 $51,803,113 1,672,147
2022-09-30 $21,812,785 1,162,109
2022-06-30 $22,686,946 1,254,809