# EDGAR Filing Document

**Accession Number:** 0000816153
**File Stem:** 0001410368-25-029191
**Filing Date:** 2025-11
**Character Count:** 19487
**Document Hash:** 12472e548a185ea906a004d6102d96c4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-029191.hdr.sgml**: 20251124

**ACCESSION NUMBER**: 0001410368-25-029191

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251124

**DATE AS OF CHANGE**: 20251124

**PERIOD START**: 20250930

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** THORNBURG INVESTMENT TRUST
- **CENTRAL INDEX KEY:** 0000816153

**ORGANIZATION NAME:**
- **EIN:** 061158764
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-05201
- **FILM NUMBER:** 251510267

**BUSINESS ADDRESS:**
- **STREET 1:** 2300 NORTH RIDGETOP ROAD
- **CITY:** SANTA FE
- **STATE:** NM
- **ZIP:** 87506-8361
- **BUSINESS PHONE:** 5059840200

**MAIL ADDRESS:**
- **STREET 1:** 2300 NORTH RIDGETOP ROAD
- **CITY:** SANTA FE
- **STATE:** NM
- **ZIP:** 87506-8361

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** THORNBURG INCOME TRUST
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LIMITED TERM TRUST
- **DATE OF NAME CHANGE:** 19870816

## Series and Classes Contracts Data

### Thornburg Small/Mid Cap Growth Fund (Series ID: S000011850)

| Class ID   | Class Name                                     | Ticker Symbol   |
|:---|:---|:---|
| C000032375 | Thornburg Small/Mid Cap Growth Fund - Class A  | THCGX           |
| C000032376 | Thornburg Small/Mid Cap Growth Fund - Class C  | TCGCX           |
| C000032377 | Thornburg Small/Mid Cap Growth Fund - Class I  | THIGX           |
| C000032379 | Thornburg Small/Mid Cap Growth Fund - Class R5 | THGRX           |
| C000042673 | Thornburg Small/Mid Cap Growth Fund - Class R4 | TCGRX           |
| C000042674 | Thornburg Small/Mid Cap Growth Fund - Class R3 | THCRX           |

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** THORNBURG INVESTMENT TRUST

- **b. Investment Company Act file number:** 811-05201

- **c. CIK number of Registrant:** 0000816153

- **d. LEI of Registrant:** 5493001XM52H8S4WYY82

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 2300 NORTH RIDGETOP ROAD

  - **City:** SANTA FE

  - **State:** NM

  - **Foreign country:** US

  - **Zip / Postal Code:** 87506-8361

  - **Telephone number:** 505-984-0200

**Item A.2. Information about the Series.**

- **a. Name of Series:** Thornburg Small/Mid Cap Growth Fund

- **b. EDGAR series identifier (if any):** S000011850

- **c. LEI of Series:** 5493007OHRENF8SZUU58

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2025-09-30

- **b. Date as of which information is reported:** 2025-09-30

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $220400617.61

**Total Liabilities:** $423654.99

**Net Assets:** $219976962.62

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000032379 | 1.17%                | 2.22%                | 1.96%                |
| Class ID C000032375 | 1.13%                | 2.16%                | 1.92%                |
| Class ID C000032376 | 1.02%                | 2.12%                | 1.85%                |
| Class ID C000042673 | 1.12%                | 2.22%                | 1.91%                |
| Class ID C000032377 | 1.17%                | 2.22%                | 1.98%                |
| Class ID C000042674 | 1.12%                | 2.17%                | 1.93%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $3004663.57              | $-346381.83                                |
| Month 2  | $3132361.79              | $1747210.33                                |
| Month 3  | $8255171.36              | $-3817655.79                               |

### Schedule of Portfolio Investments

| Name                                   | Title                                  | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| On Holding AG                          | On Holding AG                          | CUSIP: 000000000<br>LEI: 506700FB3467B9W95526 | Long             | EC               | CORP              | CH        |     90916 | NS      | $3850292.60   | 1.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Pure Storage Inc                       | Pure Storage Inc                       | CUSIP: 74624M102<br>LEI: 549300NPDB0BZTK3WO90 | Long             | EC               | CORP              | US        |     89356 | NS      | $7488926.36   | 3.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Repligen Corp                          | Repligen Corp                          | CUSIP: 759916109<br>LEI: 54930006QJ0T5AUO1E71 | Long             | EC               | CORP              | US        |     47797 | NS      | $6389024.99   | 2.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Marex Group PLC                        | Marex Group PLC                        | CUSIP: 000000000<br>LEI: 549300DWX0SVICJAL507 | Long             | EC               | CORP              | GB        |    132958 | NS      | $4470047.96   | 2.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Tradeweb Markets Inc                   | Tradeweb Markets Inc                   | CUSIP: 892672106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     28653 | NS      | $3179909.94   | 1.45%             |  |  |  | No            |                  1 | On Loan: No      |
| JFrog Ltd                              | JFrog Ltd                              | CUSIP: 000000000<br>LEI: 2549002N8E00AY49G567 | Long             | EC               | CORP              | IL        |    120173 | NS      | $5687788.09   | 2.59%             |  |  |  | No            |                  1 | On Loan: No      |
| Samsara Inc                            | Samsara Inc                            | CUSIP: 79589L106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     87174 | NS      | $3247231.50   | 1.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Applied Industrial Technologies Inc    | Applied Industrial Technologies Inc    | CUSIP: 03820C105<br>LEI: 549300NU173IJRC6PO38 | Long             | EC               | CORP              | US        |     21665 | NS      | $5655648.25   | 2.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Churchill Downs Inc                    | Churchill Downs Inc                    | CUSIP: 171484108<br>LEI: 529900FODTBQC8MIS994 | Long             | EC               | CORP              | US        |     29140 | NS      | $2826871.40   | 1.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Dutch Bros Inc                         | Dutch Bros Inc                         | CUSIP: 26701L100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     77711 | NS      | $4067393.74   | 1.85%             |  |  |  | No            |                  1 | On Loan: No      |
| Inspire Medical Systems Inc            | Inspire Medical Systems Inc            | CUSIP: 457730109<br>LEI: 549300XQQCQ7HCJKTW25 | Long             | EC               | CORP              | US        |     20364 | NS      | $1511008.80   | 0.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Insulet Corp                           | Insulet Corp                           | CUSIP: 45784P101<br>LEI: 549300TZTYD2PYN92D43 | Long             | EC               | CORP              | US        |     14643 | NS      | $4520733.39   | 2.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Vertiv Holdings Co                     | Vertiv Holdings Co                     | CUSIP: 92537N108<br>LEI: 549300KTTIRAOGXCRV69 | Long             | EC               | CORP              | US        |     52592 | NS      | $7934029.12   | 3.61%             |  |  |  | No            |                  1 | On Loan: No      |
| StandardAero Inc                       | StandardAero Inc                       | CUSIP: 85423L103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    211789 | NS      | $5779721.81   | 2.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Monday.com Ltd                         | Monday.com Ltd                         | CUSIP: 000000000<br>LEI: 984500MDAFVD86E3B328 | Long             | EC               | CORP              | IL        |     21300 | NS      | $4125597.00   | 1.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Thornburg Capital Management Fund      | Thornburg Capital Management Fund      | CUSIP: 885216739<br>LEI: 549300GLR0WG6ALV5277 | Long             | EC               | RF                | US        |    156571 | NS      | $1565707.69   | 0.71%             |  |  |  | No            |                  1 | On Loan: No      |
| Saia Inc                               | Saia Inc                               | CUSIP: 78709Y105<br>LEI: 549300WNPG4N9GBOYB29 | Long             | EC               | CORP              | US        |     10368 | NS      | $3103764.48   | 1.41%             |  |  |  | No            |                  1 | On Loan: No      |
| CyberArk Software Ltd                  | CyberArk Software Ltd                  | CUSIP: 000000000<br>LEI: 529900YEXNDM894PWS93 | Long             | EC               | CORP              | IL        |     11465 | NS      | $5539314.75   | 2.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Adtalem Global Education Inc           | Adtalem Global Education Inc           | CUSIP: 00737L103<br>LEI: 549300Z467EZLMODV621 | Long             | EC               | CORP              | US        |     39264 | NS      | $6064324.80   | 2.76%             |  |  |  | No            |                  1 | On Loan: No      |
| MYR Group Inc                          | MYR Group Inc                          | CUSIP: 55405W104<br>LEI: 529900G1IMMZHOQ17I54 | Long             | EC               | CORP              | US        |     19245 | NS      | $4003537.35   | 1.82%             |  |  |  | No            |                  1 | On Loan: No      |
| TransUnion                             | TransUnion                             | CUSIP: 89400J107<br>LEI: 549300ZS772LUNUMRB03 | Long             | EC               | CORP              | US        |     68496 | NS      | $5738594.88   | 2.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Shift4 Payments Inc                    | Shift4 Payments Inc                    | CUSIP: 82452J109<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     58481 | NS      | $4526429.40   | 2.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Rambus Inc                             | Rambus Inc                             | CUSIP: 750917106<br>LEI: 2549000211GDCQSLV833 | Long             | EC               | CORP              | US        |     68591 | NS      | $7147182.20   | 3.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Netskope Inc                           | Netskope Inc                           | CUSIP: 64119N608<br>LEI: 254900CS525VJG6KO570 | Long             | EC               | CORP              | US        |    157059 | NS      | $3569951.07   | 1.62%             |  |  |  | No            |                  1 | On Loan: No      |
| TechnipFMC PLC                         | TechnipFMC PLC                         | CUSIP: 000000000<br>LEI: 549300D5I93QWCJTCK36 | Long             | EC               | CORP              | GB        |    134459 | NS      | $5304407.55   | 2.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Agilysys Inc                           | Agilysys Inc                           | CUSIP: 00847J105<br>LEI: 5299001XWB5V3B5IPN93 | Long             | EC               | CORP              | US        |     63386 | NS      | $6671376.50   | 3.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Credo Technology Group Holding Ltd     | Credo Technology Group Holding Ltd     | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | KY        |     53049 | NS      | $7724464.89   | 3.51%             |  |  |  | No            |                  1 | On Loan: No      |
| ITT Inc                                | ITT Inc                                | CUSIP: 45073V108<br>LEI: 549300KDSERHTJOXUS80 | Long             | EC               | CORP              | US        |     24519 | NS      | $4383016.44   | 1.99%             |  |  |  | No            |                  1 | On Loan: No      |
| CCC Intelligent Solutions Holdings Inc | CCC Intelligent Solutions Holdings Inc | CUSIP: 12510Q100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    514429 | NS      | $4686448.19   | 2.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Ultragenyx Pharmaceutical Inc          | Ultragenyx Pharmaceutical Inc          | CUSIP: 90400D108<br>LEI: 529900EV44GVDN1DCX77 | Long             | EC               | CORP              | US        |     69248 | NS      | $2082979.84   | 0.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Insmed Inc                             | Insmed Inc                             | CUSIP: 457669307<br>LEI: 529900Q55QAG41CCAC11 | Long             | EC               | CORP              | US        |     44048 | NS      | $6343352.48   | 2.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Clearwater Analytics Holdings Inc      | Clearwater Analytics Holdings Inc      | CUSIP: 185123106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    181830 | NS      | $3276576.60   | 1.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Casella Waste Systems Inc              | Casella Waste Systems Inc              | CUSIP: 147448104<br>LEI: 8EU0XUFVJ48U37IIDH51 | Long             | EC               | CORP              | US        |     82918 | NS      | $7867259.84   | 3.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Liberty Media Corp-Liberty Formula One | Liberty Media Corp-Liberty Formula One | CUSIP: 531229755<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     51555 | NS      | $5384919.75   | 2.45%             |  |  |  | No            |                  1 | On Loan: No      |
| SiTime Corp                            | SiTime Corp                            | CUSIP: 82982T106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     21037 | NS      | $6338658.47   | 2.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Cytokinetics Inc                       | Cytokinetics Inc                       | CUSIP: 23282W605<br>LEI: 549300BE5DY1HW7IHA64 | Long             | EC               | CORP              | US        |     84719 | NS      | $4656156.24   | 2.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Builders FirstSource Inc               | Builders FirstSource Inc               | CUSIP: 12008R107<br>LEI: 549300W0SKP6L3H7DP63 | Long             | EC               | CORP              | US        |     23170 | NS      | $2809362.50   | 1.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Glaukos Corp                           | Glaukos Corp                           | CUSIP: 377322102<br>LEI: 5299004JA1LHE21M6T14 | Long             | EC               | CORP              | US        |     49069 | NS      | $4001576.95   | 1.82%             |  |  |  | No            |                  1 | On Loan: No      |
| Artivion Inc                           | Artivion Inc                           | CUSIP: 228903100<br>LEI: 549300YTKV8DMSMG6K81 | Long             | EC               | CORP              | US        |    132672 | NS      | $5617332.48   | 2.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Freshpet Inc                           | Freshpet Inc                           | CUSIP: 358039105<br>LEI: 549300S4ZK8ZQ6HNPN59 | Long             | EC               | CORP              | US        |     64667 | NS      | $3563798.37   | 1.62%             |  |  |  | No            |                  1 | On Loan: No      |
| Wyndham Hotels & Resorts Inc           | Wyndham Hotels & Resorts Inc           | CUSIP: 98311A105<br>LEI: 549300FE3MQ4RVXXC673 | Long             | EC               | CORP              | US        |     34226 | NS      | $2734657.40   | 1.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Celsius Holdings Inc                   | Celsius Holdings Inc                   | CUSIP: 15118V207<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     99131 | NS      | $5699041.19   | 2.59%             |  |  |  | No            |                  1 | On Loan: No      |
| StepStone Group Inc                    | StepStone Group Inc                    | CUSIP: 85914M107<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     73141 | NS      | $4776838.71   | 2.17%             |  |  |  | No            |                  1 | On Loan: No      |
| SharkNinja Inc                         | SharkNinja Inc                         | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | KY        |     63166 | NS      | $6515572.90   | 2.96%             |  |  |  | No            |                  1 | On Loan: No      |
| Argan Inc                              | Argan Inc                              | CUSIP: 04010E109<br>LEI: 529900E4KZWBV9KGBS83 | Long             | EC               | CORP              | US        |     29249 | NS      | $7898692.45   | 3.59%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-10-17

**Name of Applicant:** THORNBURG INVESTMENT TRUST

**Signature:** Christopher Luckham

**Name of Signer:** Christopher Luckham

**Title:** Manager - Fund Admin