The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

OMB APPROVAL
OMB Number: 3235-0006
Expires: July 31, 2015
Estimated average burden
hours per response: 23.8

Report for the Calendar Year or Quarter Ended: 06-30-2021
Check here if Amendment   Amendment Number:
This Amendment (Check only one.):   is a restatement.
  adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: MU Investments Co., Ltd.
Address: 3-11, KANDA SURUGADAI 2-CHOME
CHIYODA-KU
TOKYO , M0101-0062
Form 13F File Number: 028-13602

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name: SATOSHI SUDA
Title: MANAGER
Phone: 81-3-5259-5359
Signature, Place, and Date of Signing:
SATOSHI SUDA TOKYO , M0 07-27-2021
[Signature] [City, State] [Date]
Report Type (Check only one.):
X 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
  13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
  13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 0
Form 13F Information Table Entry Total: 25
Form 13F Information Table Value Total: 93,309
(thousands)
List of Other Managers Reporting for this Manager:
[If there are no entries in this list, omit this section.]
Form 13F File Number Name

List of Other Included Managers:
Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]
No. Form 13F File Number Name


SEC FORM 13F-HR

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL
OMB Number: 3235-0006
Expires: July 31, 2015
Estimated average burden
hours per response: 23.8

COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ACCENTURE PLC-CL A Common Stock G1151C101 4,053 13,750 SH SOLE 13,750 0 0
APTIV PLC Common Stock G6095L109 4,292 27,280 SH SOLE 27,280 0 0
APPLE COMPUTER Common Stock 037833100 3,762 27,470 SH SOLE 27,470 0 0
COSTCO WHOLESALE CORP Common Stock 22160K105 3,593 9,080 SH SOLE 9,080 0 0
DR HORTON INC Common Stock 23331A109 4,375 48,410 SH SOLE 48,410 0 0
DOLLAR GENERAL Common Stock 256677105 3,562 16,460 SH SOLE 16,460 0 0
GEN DYNAMICS CORP Common Stock 369550108 4,240 22,520 SH SOLE 22,520 0 0
WW GRAINGER INC Common Stock 384802104 3,688 8,420 SH SOLE 8,420 0 0
INTEL CORP Common Stock 458140100 3,783 67,380 SH SOLE 67,380 0 0
JOHNSON & JOHNSON Common Stock 478160104 3,665 22,250 SH SOLE 22,250 0 0
ESTEE LAUDER-A Common Stock 518439104 4,370 13,740 SH SOLE 13,740 0 0
MARSH & MCLENNAN COS Common Stock 571748102 4,129 29,350 SH SOLE 29,350 0 0
MERCK & CO INC Common Stock 58933Y105 3,174 40,810 SH SOLE 40,810 0 0
MICROSOFT CORP Common Stock 594918104 4,359 16,090 SH SOLE 16,090 0 0
NIKE INC B Common Stock 654106103 3,804 24,620 SH SOLE 24,620 0 0
ORGANON & CO Common Stock 68622V106 123 4,081 SH SOLE 4,081 0 0
PPG INDUSTRIES INC Common Stock 693506107 4,012 23,630 SH SOLE 23,630 0 0
ROSS STORES INC Common Stock 778296103 3,706 29,890 SH SOLE 29,890 0 0
STRYKER CORP Common Stock 863667101 3,740 14,400 SH SOLE 14,400 0 0
TJX COMPANIES Common Stock 872540109 3,433 50,920 SH SOLE 50,920 0 0
TAIWAN SEMICONDUCTOR-SP ADR Common Stock 874039100 3,904 32,490 SH SOLE 32,490 0 0
TEXAS INSTRUMENTS INC Common Stock 882508104 4,019 20,900 SH SOLE 20,900 0 0
THERMO FISHER SCIENTIFIC INC Common Stock 883556102 3,647 7,230 SH SOLE 7,230 0 0
3M Common Stock 88579Y101 3,879 19,530 SH SOLE 19,530 0 0
UNITEDHEALTH GROUP INC Common Stock 91324P102 3,996 9,980 SH SOLE 9,980 0 0