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LOOMIS SAYLES & CO L P

Position in ARM — Arm Holdings PLC /Uk

CIK 312348 BOSTON, MA

Position in ARM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$278,397,017
+$148,256,583 QoQ
Shares Held
785,168
-8.7% QoQ
Ownership
0.074%
of shares outstanding
% of Portfolio
0.35%
of 13F equity value
Holder Rank
#28
of 952 holders
Holding Since
Sep 2023
12 quarters on record
Voting authority Sole 94% Shared 0% None 6%

Common Shares in ARM Over Time

Shares Held

Position Value (USD)

Position in Semiconductors

Technology · as of Jun 30, 2026

LOOMIS SAYLES & CO L P holds $9,297,110,497 across 22 Semiconductors names. ARM ranks #3 (3.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 ARM
Arm Holdings PLC /Uk
This page
785,168 $278,397,017

All Filings in ARM

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12 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $278,397,017 785,168
2026-03-31 $130,140,434 860,262
2025-12-31 $90,718,335 829,918
2025-09-30 $120,306,258 850,281
2025-06-30 $133,943,363 828,140
2025-03-31 $90,213,628 844,776
2024-12-31 $105,414,080 854,524
2024-09-30 $128,237,066 896,700
2024-06-30 $159,052,874 972,087
2024-03-31 $124,027,451 992,299
2023-12-31 $77,537,841 1,031,843
2023-09-30 $57,003,294 1,065,084