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Filing Detail
Form 497K - Summary Prospectus for certain open-end management investment companies filed pursuant to Securities Act Rule 497(K):
SEC Accession No. 0001193125-13-031868
Filing Date
2013-01-31
Accepted
2013-01-31 12:49:54
Documents
4
Effectiveness Date
2013-01-31

Document Format Files

Seq Description Document Type Size
1 INVESTMENT INCOME BUILDER SUMMARY PROSPECTUS d442321d497k.htm 497K 78543
2 GRAPHIC g442321g78u88.jpg GRAPHIC 16898
3 GRAPHIC g442321s27.jpg GRAPHIC 27226
4 GRAPHIC g442321s33.jpg GRAPHIC 19817
  Complete submission text file 0001193125-13-031868.txt   168975

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0000816153      
Series S000011851   Thornburg Investment Income Builder Fund
Class/Contract C000032380   Thornburg Investment Income Builder Fund - Class A TIBAX
Class/Contract C000032381   Thornburg Investment Income Builder Fund - Class C TIBCX
Class/Contract C000032382   Thornburg Investment Income Builder Fund - Class I TIBIX
Mailing Address 2300 NORTH RIDGETOP ROAD SANTA FE NM 87506-8361
Business Address 2300 NORTH RIDGETOP ROAD SANTA FE NM 87506-8361 5059840200
THORNBURG INVESTMENT TRUST (Filer) CIK: 0000816153 (see all company filings)

IRS No.: 061158764 | State of Incorp.: MA | Fiscal Year End: 0930
Type: 497K | Act: 33 | File No.: 033-14905 | Film No.: 13561734