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
Estimated average burden
hours per response: 23.8

Report for the Calendar Year or Quarter Ended: 06-30-2013
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: Managers Investment Group LLC
Address: 800 CONNECTICUT AVENUE
4TH FLOOR
NORWALK, CT  06854
Form 13F File Number: 028-11395

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: Patrick Spellman
Title: SVP, Chief Compliance Officer
Phone: 203-299-3582
Signature, Place, and Date of Signing:
Patrick Spellman NorwalkCT 07-25-2013
[Signature] [City, State] [Date]
Report Type (Check only one.):
   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).)
X 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).)
List of Other Managers Reporting for this Manager:
[If there are no entries in this list, omit this section.]
Form 13F File Number Name
028-05835 CHICAGO EQUITY PARTNERS LLC
028-00878 ESSEX INVESTMENT MANAGEMENT CO LLC
028-06902 FEDERATED MDTA LLC
028-05582 FIRST QUADRANT L P/CA
028-01185 FRONTIER CAPITAL MANAGEMENT CO LLC
028-04145 GANNETT WELSH & KOTLER
028-00398 LOOMIS SAYLES & CO L P
028-00413 LORD, ABBETT & CO. LLC
028-06277 NEXT CENTURY GROWTH INVESTORS LLC
028-10952 PACIFIC INVESTMENT MANAGEMENT CO LLC
028-11311 Ranger Investment Management, L.P.
028-04884 RENAISSANCE GROUP LLC
028-04021 SKYLINE ASSET MANAGEMENT LP
028-03459 SMITH ASSET MANAGEMENT GROUP LP /ADV
028-05015 SYSTEMATIC FINANCIAL MANAGEMENT LP
028-11092 TimesSquare Capital Management, LLC
028-10163 TRILOGY GLOBAL ADVISORS LP
028-05577 URDANG INVESTMENT MANAGEMENT INC
028-05670 WEDGE CAPITAL MANAGEMENT L L P/NC
028-03760 YACKTMAN ASSET MANAGEMENT LP
028-11612 CADENCE CAPITAL MANAGEMENT LLC
028-00694 JPMORGAN CHASE & CO
028-10228 RBC Global Asset Management (U.S.)
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 1
Form 13F Information Table Entry Total: 0
Form 13F Information Table Value Total: 0
(thousands)
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
1 028-04975 AFFILIATED MANAGERS GROUP INC