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Mitsubishi UFJ Morgan Stanley Securities Co., Ltd. — 13F Holdings & Portfolio

CIK 1545545 · latest 13F-HR filed 2026-11-06

Backtest portfolio

Mitsubishi UFJ Morgan Stanley Securities Co., Ltd. manages $38.7M in 13F-reported U.S. long-equity assets across 176 reported positions as of its 2026-09-30 13F-HR filing. Its largest disclosed positions are MU (9.49%), AMAT (6.17%), AVGO (4.54%). Quarter over quarter (versus its 2026-06-30 filing) the fund opened 22 new positions and exited 4; 57 existing positions rose in reported value and 75 fell.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

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AUM
$38.7M

Long-equity book

Holdings
176

Distinct positions

Period
2026-09-30

Filed 2026-11-06

Q/Q Activity
+22 / −4 / ↑57 / ↓75

vs 2026-06-30

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q3 26
MU9.5% · +251%AMAT6.2% · -13%AVGO4.5% · -44%NVDA4.5% · +6%PLTR3.5% · +212%SKHY3.1% · newAMZN2.6% · +72%MRVL2.6% · +36%AMD2.1% · -6%GOOGL2.1% · +47%MSFT1.9% · +153%SPCX1.8% · +13%LITE1.5% · +25%ASML1.4% · +12%WMT1.4% · +11%LRCX1.4% · +313%GEV1.3% · +31%LLY1.1% · +486%VRT1.1% · +15%STX1.1% · +6%PANW1.0% · -45%KEYS1.0% · +5%PWR1.0% · +1%INTC1.0% · newANET1.0% · -11%PH1.0% · +34%MKSI0.9% · +260%RTX0.9% · +406%LMT0.9% · +185%CVX0.8% · +55%CCL0.8% · +30%NEM0.8% · newARM0.7% · +789%SNDK0.7% · -27%CBRS0.6% · -45%CRWD0.6% · newDELL0.6% · -18%CTAS0.6% · 0%ALAB0.5% · -27%TER0.5% · +70%TSM0.5% · +63%VLO0.5% · -49%AAPL0.5% · +60%SNPS0.5% · +112%WDC0.5% · -38%ADI0.5% · +82%QQQ0.5% · +64%KLAC0.5% · -31%CDNS0.5% · +85%CRUS0.5% · +143%GLW0.5% · +78%MPWR0.5% · +100%VST0.5% · +230%ETN0.5% · newSPOT0.5% · +42%GLD0.5% · +80%BRK.B0.5% · +160%IWM0.5% · -45%NFLX0.4% · +99%COHR0.4% · -58%

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q2 26 → Q3 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

4 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 40.6%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

Name Title / Status Ownership Type

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Top Adds (vs prior quarter)

Show all 57 →

Top Trims

Show all 75 →

New Positions

Show all 22 →

Exited Positions

Show all 4 →

Mitsubishi UFJ Morgan Stanley Securities Co., Ltd. Holdings (2026-09-30)

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 MICRON TECHNOLOGY INC MU 595112103 $3.7M 9.49% 3,446 SH
2 APPLIED MATLS INC AMAT 038222105 $2.4M 6.17% 4,665 SH
3 BROADCOM INC AVGO 11135F101 $1.8M 4.54% 5,000 SH
4 NVIDIA CORPORATION NVDA 67066G104 $1.7M 4.46% 7,550 SH
5 PALANTIR TECHNOLOGIES INC PLTR 69608A108 $1.4M 3.54% 7,330 SH
6 SK HYNIX INC SKHY 78392B206 $1.2M 3.06% 6,430 SH
7 AMAZON COM INC AMZN 023135106 $1.0M 2.60% 4,041 SH
8 MARVELL TECHNOLOGY INC MRVL 573874104 $995.5K 2.57% 3,768 SH
9 ADVANCED MICRO DEVICES INC AMD 007903107 $817.3K 2.11% 1,336 SH
10 ALPHABET INC GOOGL 02079K305 $809.3K 2.09% 2,352 SH
11 MICROSOFT CORP MSFT 594918104 $737.0K 1.90% 1,437 SH
12 SPACE EXPLORATION TECHN CORP SPCX 84615Q103 $682.2K 1.76% 4,522 SH
13 LUMENTUM HLDGS INC LITE 55024U109 $592.5K 1.53% 610 SH
14 ASML HLDG NV ASML N07059210 $559.8K 1.45% 309 SH
15 WALMART INC WMT 931142103 $552.3K 1.43% 5,315 SH
16 LAM RESEARCH CORP LRCX 512807306 $534.2K 1.38% 1,626 SH
17 GE VERNOVA INC GEV 36828A101 $511.4K 1.32% 538 SH
18 ELI LILLY & CO LLY 532457108 $440.8K 1.14% 381 SH
19 VERTIV HOLDINGS CO VRT 92537N108 $416.5K 1.08% 1,726 SH
20 SEAGATE TECHNOLOGY HLDNGS PL STX G7997R103 $407.7K 1.05% 442 SH
21 PALO ALTO NETWORKS INC PANW 697435105 $397.7K 1.03% 1,001 SH
22 KEYSIGHT TECHNOLOGIES INC KEYS 49338L103 $397.2K 1.03% 1,091 SH
23 QUANTA SVCS INC PWR 74762E102 $395.1K 1.02% 615 SH
24 INTEL CORP INTC 458140100 $390.5K 1.01% 3,248 SH
25 ARISTA NETWORKS INC ANET 040413205 $389.7K 1.01% 1,914 SH
26 PARKER-HANNIFIN CORP PH 701094104 $372.6K 0.96% 390 SH
27 MKS INC. MKSI 55306N104 $361.2K 0.93% 1,361 SH
28 RTX CORPORATION RTX 75513E101 $347.5K 0.90% 1,872 SH
29 LOCKHEED MARTIN CORP LMT 539830109 $340.7K 0.88% 669 SH
30 CHEVRON CORPORATION CVX 166764100 $324.9K 0.84% 1,591 SH
31 CARNIVAL CORP CCL G2004J103 $305.0K 0.79% 12,429 SH
32 NEWMONT CORP NEM 651639106 $292.4K 0.76% 2,535 SH
33 ARM HOLDINGS PLC ARM 042068205 $288.5K 0.75% 996 SH
34 SANDISK CORP SNDK 80004C200 $264.5K 0.68% 152 SH
35 CEREBRAS SYSTEMS INC CBRS 15675D103 $242.3K 0.63% 1,364 SH
36 CROWDSTRIKE HLDGS INC CRWD 22788C105 $221.3K 0.57% 836 SH
37 DELL TECHNOLOGIES INC DELL 24703L202 $221.1K 0.57% 411 SH
38 CINTAS CORP CTAS 172908105 $216.7K 0.56% 1,111 SH
39 ASTERA LABS INC ALAB 04626A103 $211.1K 0.55% 593 SH
40 TERADYNE INC TER 880770102 $206.9K 0.53% 516 SH
41 TAIWAN SEMICONDUCTOR MANUFAC TSM 874039100 $205.3K 0.53% 450 SH
42 VALERO ENERGY CORP VLO 91913Y100 $203.9K 0.53% 526 SH
43 APPLE INC AAPL 037833100 $203.5K 0.53% 611 SH
44 SYNOPSYS INC SNPS 871607107 $198.8K 0.51% 457 SH
45 WESTERN DIGITAL CORP WDC 958102105 $195.0K 0.50% 429 SH
46 ANALOG DEVICES INC ADI 032654105 $194.4K 0.50% 490 SH
47 INVESCO QQQ TR QQQ 46090E103 $193.1K 0.50% 261 SH
48 KLA CORP KLAC 482480100 $190.4K 0.49% 977 SH
49 CADENCE DESIGN SYSTEM INC CDNS 127387108 $187.2K 0.48% 567 SH
50 CIRRUS LOGIC INC CRUS 172755100 $185.4K 0.48% 1,545 SH
Filing History
Period Filed AUM Holdings Accession
2026-09-30 2026-11-06 $38.7M 176 0001545545-26-000013
2026-06-30 2026-07-15 $32.7M 158 0001545545-26-000010
2026-03-31 2026-04-30 $40.7M 154 0001545545-26-000007
2025-12-31 2026-02-10 $63.6M 130 0001545545-26-000005
Filer Information
Address
1-4-5, MARUNOUCHI, CHIYODA-KU
TOKYO, M0 100-8330
Phone
81-80-2097-6150
Filing Manager
Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.
TOKYO, M0
Signatory
Hidetoshi Fuwa
Chief Manager of Corporate Planning Division