# Low Duration Municipal Fund — new fund registration

THORNBURG INVESTMENT TRUST registered 2 new fund series on Form 485APOS, filed 2013-10-15. Featured series: Low Duration Municipal Fund.

## Registration

- Registrant / trust: THORNBURG INVESTMENT TRUST
- CIK: 0000816153
- Form: 485APOS
- Filed: 2013-10-15
- State of incorporation: MA
- Accession: 0001193125-13-399200
- Reported net assets: $94.0M

## Series & classes (4)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [Low Duration Municipal Fund](https://search.stillhousedata.com/fund/S000043669) | Class A: | TLMAX | Yes |
| [Low Duration Municipal Fund](https://search.stillhousedata.com/fund/S000043669) | Class I: | TLMIX | Yes |
| [Low Duration Bond Fund](https://search.stillhousedata.com/fund/S000043670) | Class A: | TLDAX | Yes |
| [Low Duration Bond Fund](https://search.stillhousedata.com/fund/S000043670) | Class I: | TLDIX | Yes |

## Fees (from the effective prospectus)

- 12b-1 fee: 0.20%
- Gross expense ratio: 1.23%
- Management fee: 0.40%
- Net expense ratio: 0.70%
- Other expenses: 0.63%

## Investment objective

The Fund seeks current income exempt from federal income tax, consistent with preservation of capital.

## Advisers

- [Thornburg Investment Management, Inc. (Advisor)](https://search.stillhousedata.com/firm/106357)

## Other filings by this registrant (15)

- [485APOS — 2026-07-06](https://search.stillhousedata.com/launch/0001999371-26-014309)
- [485APOS — 2026-01-21](https://search.stillhousedata.com/launch/0001999371-26-001404)
- [485APOS — 2025-12-02](https://search.stillhousedata.com/launch/0001999371-25-019234)
- [485APOS — 2025-01-10 (2 new series)](https://search.stillhousedata.com/launch/0001839882-25-001533)
- [485APOS — 2024-11-29](https://search.stillhousedata.com/launch/0001839882-24-042404)
- [485APOS — 2023-11-29](https://search.stillhousedata.com/launch/0001999371-23-000642)
- [485APOS — 2023-07-19 (7 new series)](https://search.stillhousedata.com/launch/0001387131-23-008507)
- [485APOS — 2023-01-13 (2 new series)](https://search.stillhousedata.com/launch/0001387131-23-000305)
- [485APOS — 2022-11-29](https://search.stillhousedata.com/launch/0001387131-22-011956)
- [485APOS — 2021-11-29](https://search.stillhousedata.com/launch/0001387131-21-011611)
- [485APOS — 2020-11-27](https://search.stillhousedata.com/launch/0001387131-20-010296)
- [485APOS — 2020-10-19](https://search.stillhousedata.com/launch/0001387131-20-009076)

## More

- [Registrant profile: THORNBURG INVESTMENT TRUST](https://search.stillhousedata.com/registrant/816153)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0001193125-13-399200.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.