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Super Investors Mizuho Securities Co. Ltd.
MS

Mizuho Securities Co. Ltd.

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$7.68M
Positions
16
Quarter ended
March 31, 2026
Filed
May 07, 2026

Reported portfolio value by quarter (30 quarters reported)

$1.13B $6.62M
Q4 18 Q2 20 Q4 21 Q2 23 Q4 24 Q1 26

$1.13B in Q4 2018 → $7.68M now. Hover for any quarter.

Holdings

As reported for the quarter ended March 31, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
T Tripcomgroupltd 64.0% Added 48% 98,740 $4.92M
B Bilibiliinc 21.8% Unchanged 74,206 $1.67M
A Alibabagrouphldgltd 4.5% Unchanged 2,750 $345K
J Jd.cominc 3.5% Unchanged 9,100 $269K
N Nvidiacorporation 2.0% Added 8800% 890 $155K
I Isharesgoldtr 1.0% New 830 $73.2K
L Liautoinc 0.9% Unchanged 3,950 $70.4K
M Mastercardincorporated 0.5% New 80 $40K
M Microsoftcorp 0.4% Added 500% 90 $33.3K
A Amazoncominc 0.3% New 110 $22.9K
A AT&TINC 0.3% New 780 $22.6K
A Albemarlecorp 0.2% New 100 $18K
M Metaplatformsinc 0.2% New 25 $14.3K
A Alphabetinc 0.1% Trimmed 49% 40 $11.5K
U Unitedmicroelectronicscorp 0.1% Unchanged 782 $7.02K
T Teslainc 0.1% New 18 $6.69K

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q1 2026

quarter ended March 31, 2026 · filed May 07, 2026

Company Action Shares changed Value of change % of portfolio
T Tripcomgroupltd Added +32,000 +$1.59M 64.0%
N Nvidiacorporation Added +880 +$153K 2.0%
I Isharesgoldtr New +830 +$73.2K 1.0%
Caterpillar Inc Exited −90 −$51.6K —
M Mastercardincorporated New +80 +$40K 0.5%
M Microsoftcorp Added +75 +$27.8K 0.4%
A Amazoncominc New +110 +$22.9K 0.3%
A AT&TINC New +780 +$22.6K 0.3%
A Albemarlecorp New +100 +$18K 0.2%
PH Paypal Hldgs Inc Exited −305 −$17.8K —

Showing the 10 largest of 16 changes.

Q4 2025

quarter ended December 31, 2025 · filed January 30, 2026

Company Action Shares changed Value of change % of portfolio
Vertiv Holdings Co Exited −5,440 −$821K —
CH Crowdstrike Hldgs Inc Exited −1,650 −$809K —
Apple Inc Exited −3,000 −$764K —
Tesla Inc Exited −1,680 −$747K —
Salesforce Inc Exited −2,480 −$588K —
Nvidia Corporation Trimmed −2,830 −$528K —
Unitedhealth Group Inc Exited −1,413 −$488K —
Alphabet Inc Trimmed −882 −$276K 0.3%
Trip Com Group Ltd Added +3,375 +$243K 64.1%
Intel Corp Exited −6,216 −$209K —

Showing the 10 largest of 40 changes.

Q3 2025

quarter ended September 30, 2025 · filed October 30, 2025

Company Action Shares changed Value of change % of portfolio
Nvidia Corporation Trimmed −43,940 −$8.2M 3.6%
Trip Com Group Ltd New +63,365 +$4.77M 32.7%
Micron Technology Inc Trimmed −14,230 −$2.38M 0.9%
Bilibili Inc Added +62,106 +$1.74M 14.3%
Microsoft Corp Trimmed −2,900 −$1.5M 0.1%
Arm Holdings PLC Trimmed −9,970 −$1.41M 1.0%
Eaton Corp PLC Trimmed −3,695 −$1.38M 0.9%
Boeing Co Exited −5,280 −$1.11M —
Arista Networks Inc Exited −9,840 −$1.01M —
DW Disney Walt Co Exited −8,080 −$1M —

Showing the 10 largest of 58 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 12, 2025

Company Action Shares changed Value of change % of portfolio
Nvidia Corporation Added +39,500 +$6.24M 26.7%
Micron Technology Inc Added +14,380 +$1.77M 6.7%
Salesforce Inc Added +5,580 +$1.52M 5.5%
Eaton Corp PLC New +4,060 +$1.45M 5.2%
Microsoft Corp Added +2,580 +$1.28M 5.2%
Boeing Co New +5,280 +$1.11M 4.0%
TS Taiwan Semiconductor Mfg Ltd Trimmed −4,190 −$949K 0.3%
Arista Networks Inc Added +8,500 +$870K 3.6%
Visa Inc Added +1,960 +$696K 2.6%
Vertiv Holdings Co Added +5,270 +$677K 2.7%

Showing the 10 largest of 69 changes.

Q1 2025

quarter ended March 31, 2025 · filed April 22, 2025

Company Action Shares changed Value of change % of portfolio
Tesla Inc Added +3,930 +$1.02M 12.3%
TS Taiwan Semiconductor Mfg Ltd New +4,540 +$754K 8.9%
Nvidia Corporation Added +6,070 +$658K 9.4%
Arm Holdings PLC Added +5,330 +$569K 8.9%
Chunghwa Telecom Co Ltd Exited −14,493 −$550K —
AT Ase Technology Hldg Co Ltd Exited −49,980 −$507K —
MI Marriott Intl Inc New Exited −1,740 −$488K —
Amazon Com Inc Added +2,380 +$453K 6.2%
Meta Platforms Inc Added +700 +$403K 4.9%
United Microelectronics Corp Exited −53,335 −$347K —

Showing the 10 largest of 64 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 12, 2025

Company Action Shares changed Value of change % of portfolio
Nvidia Corporation Trimmed −43,400 −$5.97M 2.5%
Tesla Inc Trimmed −11,980 −$5M 0.5%
CH Crowdstrike Hldgs Inc Trimmed −11,130 −$3.89M 5.3%
Salesforce Inc Trimmed −7,900 −$2.65M 1.0%
Broadcom Inc Trimmed −7,560 −$1.78M 1.4%
Arm Holdings PLC Trimmed −12,060 −$1.52M 3.3%
Meta Platforms Inc Trimmed −2,370 −$1.4M 0.1%
AT Ase Technology Hldg Co Ltd Trimmed −133,540 −$1.36M 7.7%
Alphabet Inc Trimmed −6,700 −$1.28M 6.8%
Amazon Com Inc Trimmed −4,940 −$1.09M 1.3%

Showing the 10 largest of 83 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 06, 2024

Company Action Shares changed Value of change % of portfolio
CH Crowdstrike Hldgs Inc Added +11,210 +$3.14M 8.4%
Palo Alto Networks Inc Trimmed −8,190 −$2.8M 1.5%
Micron Technology Inc Trimmed −26,740 −$2.77M 1.8%
AT Ase Technology Hldg Co Ltd New +183,520 +$1.79M 4.4%
Meta Platforms Inc Trimmed −3,020 −$1.73M 3.4%
Amazon Com Inc Trimmed −8,200 −$1.53M 2.4%
Broadcom Inc Added +6,740 +$1.16M 3.4%
Alphabet Inc Added +6,950 +$1.15M 3.7%
Tesla Inc Added +4,350 +$1.14M 7.8%
Caterpillar Inc New +1,930 +$755K 1.9%

Showing the 10 largest of 100 changes.

Q2 2024

quarter ended June 30, 2024 · filed August 01, 2024

Company Action Shares changed Value of change % of portfolio
Nvidia Corporation Added +38,670 +$4.78M 11.4%
Micron Technology Inc Added +30,630 +$4.03M 10.4%
Meta Platforms Inc Added +5,100 +$2.57M 6.3%
Salesforce Inc Added +9,630 +$2.48M 6.0%
Palo Alto Networks Inc Added +7,120 +$2.41M 7.8%
Amazon Com Inc Added +10,150 +$1.96M 6.1%
Arm Holdings PLC Added +11,220 +$1.84M 7.0%
Tesla Inc Added +6,200 +$1.23M 3.5%
Uber Technologies Inc Added +14,180 +$1.03M 2.9%
Adobe Inc Added +1,800 +$1M 2.9%

Showing the 10 largest of 87 changes.

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