# EDGAR Filing Document

**Accession Number:** 0000816153
**File Stem:** 0001410368-26-051175
**Filing Date:** 2026-5
**Character Count:** 25373
**Document Hash:** 162419236f960d9a9ba71039199aba9a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-051175.hdr.sgml**: 20260526

**ACCESSION NUMBER**: 0001410368-26-051175

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260526

**DATE AS OF CHANGE**: 20260526

**PERIOD START**: 20260930

**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:** 261016880

**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 Focus Growth Fund (Series ID: S000011850)

| Class ID   | Class Name                             | Ticker Symbol   |
|:---|:---|:---|
| C000032375 | Thornburg Focus Growth Fund - Class A  | THCGX           |
| C000032376 | Thornburg Focus Growth Fund - Class C  | TCGCX           |
| C000032377 | Thornburg Focus Growth Fund - Class I  | THIGX           |
| C000032379 | Thornburg Focus Growth Fund - Class R5 | THGRX           |
| C000042673 | Thornburg Focus Growth Fund - Class R4 | TCGRX           |
| C000042674 | Thornburg Focus Growth Fund - Class R3 | THCRX           |
| C000272859 | ETF Class                              | TFGZ            |

## 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 Focus 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:** 2026-09-30

- **b. Date as of which information is reported:** 2026-03-31

**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:** $200027160.96

**Total Liabilities:** $4466533.23

**Net Assets:** $195560627.73

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000032375 | -1.33%               | -0.50%               | -5.18%               |
| Class ID C000032376 | -1.39%               | -0.49%               | -5.24%               |
| Class ID C000032377 | -1.29%               | -0.43%               | -5.16%               |
| Class ID C000032379 | -1.30%               | -0.46%               | -5.14%               |
| Class ID C000042673 | -1.32%               | -0.44%               | -5.18%               |
| Class ID C000042674 | -1.35%               | -0.48%               | -5.20%               |
| Class ID C000272859 |  |  |  |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-2385867.23             | $-107906.01                                |
| Month 2  | $-12807253.71            | $11946113.54                               |
| Month 3  | $-4087480.08             | $-6546529.85                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| AeroVironment Inc                      | AeroVironment Inc                      | CUSIP: 008073108<br>LEI: 529900PGHVI29YLZ6221 | Long             | EC               | CORP              | US        |      3161 | NS      | $578621.05    | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Agilysys Inc                           | Agilysys Inc                           | CUSIP: 00847J105<br>LEI: 5299001XWB5V3B5IPN93 | Long             | EC               | CORP              | US        |     13864 | NS      | $986284.96    | 0.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet Inc                           | Alphabet Inc                           | CUSIP: 02079K305<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |     13112 | NS      | $3770486.72   | 1.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Amazon.com Inc                         | Amazon.com Inc                         | CUSIP: 023135106<br>LEI: ZXTILKJKG63JELOEG630 | Long             | EC               | CORP              | US        |     12815 | NS      | $2668980.05   | 1.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Applied Industrial Technologies Inc    | Applied Industrial Technologies Inc    | CUSIP: 03820C105<br>LEI: 549300NU173IJRC6PO38 | Long             | EC               | CORP              | US        |     20529 | NS      | $5446754.28   | 2.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Argan Inc                              | Argan Inc                              | CUSIP: 04010E109<br>LEI: 529900E4KZWBV9KGBS83 | Long             | EC               | CORP              | US        |     24611 | NS      | $13404381.15  | 6.85%             |  |  |  | No            |                  1 | On Loan: No      |
| BioMarin Pharmaceutical Inc            | BioMarin Pharmaceutical Inc            | CUSIP: 09061G101<br>LEI: NSLL8ITTRR0J5HEMR848 | Long             | EC               | CORP              | US        |     10518 | NS      | $594161.82    | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Acadian Asset Management Inc           | Acadian Asset Management Inc           | CUSIP: 10948W103<br>LEI: 5493004FTLQNQTBOP608 | Long             | EC               | CORP              | US        |     27546 | NS      | $1499053.32   | 0.77%             |  |  |  | No            |                  1 | On Loan: No      |
| Broadcom Inc                           | Broadcom Inc                           | CUSIP: 11135F101<br>LEI: 549300WV6GIDOZJTV909 | Long             | EC               | CORP              | US        |      9222 | NS      | $2854301.22   | 1.46%             |  |  |  | No            |                  1 | On Loan: No      |
| Builders FirstSource Inc               | Builders FirstSource Inc               | CUSIP: 12008R107<br>LEI: 549300W0SKP6L3H7DP63 | Long             | EC               | CORP              | US        |      7010 | NS      | $577133.30    | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Cadence Design Systems Inc             | Cadence Design Systems Inc             | CUSIP: 127387108<br>LEI: GCT7RXJOGLXPV0NXZY22 | Long             | EC               | CORP              | US        |      2040 | NS      | $566854.80    | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Casella Waste Systems Inc              | Casella Waste Systems Inc              | CUSIP: 147448104<br>LEI: 8EU0XUFVJ48U37IIDH51 | Long             | EC               | CORP              | US        |     80646 | NS      | $6398453.64   | 3.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Celsius Holdings Inc                   | Celsius Holdings Inc                   | CUSIP: 15118V207<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     87272 | NS      | $3096410.56   | 1.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Artivion Inc                           | Artivion Inc                           | CUSIP: 228903100<br>LEI: 549300YTKV8DMSMG6K81 | Long             | EC               | CORP              | US        |    129037 | NS      | $4725334.94   | 2.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Cytokinetics Inc                       | Cytokinetics Inc                       | CUSIP: 23282W605<br>LEI: 549300BE5DY1HW7IHA64 | Long             | EC               | CORP              | US        |     82398 | NS      | $5430852.18   | 2.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Datadog Inc                            | Datadog Inc                            | CUSIP: 23804L103<br>LEI: 549300F6JNO0KRPO1K63 | Long             | EC               | CORP              | US        |      4647 | NS      | $548578.35    | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Meta Platforms Inc                     | Meta Platforms Inc                     | CUSIP: 30303M102<br>LEI: BQ4BKCS1HXDV9HN80Z93 | Long             | EC               | CORP              | US        |      3917 | NS      | $2241033.21   | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Glaukos Corp                           | Glaukos Corp                           | CUSIP: 377322102<br>LEI: 5299004JA1LHE21M6T14 | Long             | EC               | CORP              | US        |     10733 | NS      | $1155514.78   | 0.59%             |  |  |  | No            |                  1 | On Loan: No      |
| Guidewire Software Inc                 | Guidewire Software Inc                 | CUSIP: 40171V100<br>LEI: 549300WXSG0J8IXZCK32 | Long             | EC               | CORP              | US        |      5840 | NS      | $873430.40    | 0.45%             |  |  |  | No            |                  1 | On Loan: No      |
| HEICO Corp                             | HEICO Corp                             | CUSIP: 422806208<br>LEI: 529900O1DTDLCJ7L0I14 | Long             | EC               | CORP              | US        |      5464 | NS      | $1153395.76   | 0.59%             |  |  |  | No            |                  1 | On Loan: No      |
| ITT Inc                                | ITT Inc                                | CUSIP: 45073V108<br>LEI: 549300KDSERHTJOXUS80 | Long             | EC               | CORP              | US        |     27589 | NS      | $5256532.17   | 2.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Insmed Inc                             | Insmed Inc                             | CUSIP: 457669307<br>LEI: 529900Q55QAG41CCAC11 | Long             | EC               | CORP              | US        |     37971 | NS      | $6209017.92   | 3.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Insulet Corp                           | Insulet Corp                           | CUSIP: 45784P101<br>LEI: 549300TZTYD2PYN92D43 | Long             | EC               | CORP              | US        |      3204 | NS      | $672327.36    | 0.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Karman Holdings Inc                    | Karman Holdings Inc                    | CUSIP: 485924104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      5993 | NS      | $479739.65    | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| LPL Financial Holdings Inc             | LPL Financial Holdings Inc             | CUSIP: 50212V100<br>LEI: 549300XROQ4Y8G2L7682 | Long             | EC               | CORP              | US        |      1931 | NS      | $580902.73    | 0.30%             |  |  |  | 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        |     35956 | NS      | $3056979.12   | 1.56%             |  |  |  | No            |                  1 | On Loan: No      |
| Lumentum Holdings Inc                  | Lumentum Holdings Inc                  | CUSIP: 55024U109<br>LEI: 549300JLWRRC38DWEF52 | Long             | EC               | CORP              | US        |       791 | NS      | $555883.16    | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Mastercard Inc                         | Mastercard Inc                         | CUSIP: 57636Q104<br>LEI: AR5L2ODV9HN37376R084 | Long             | EC               | CORP              | US        |      4606 | NS      | $2301433.96   | 1.18%             |  |  |  | No            |                  1 | On Loan: No      |
| Microsoft Corp                         | Microsoft Corp                         | CUSIP: 594918104<br>LEI: INR2EJN1ERAN0W5ZP974 | Long             | EC               | CORP              | US        |     13792 | NS      | $5105384.64   | 2.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Mirion Technologies Inc                | Mirion Technologies Inc                | CUSIP: 60471A101<br>LEI: 549300BNTOWVWFNVTJ65 | Long             | EC               | CORP              | US        |     50868 | NS      | $945636.12    | 0.48%             |  |  |  | No            |                  1 | On Loan: No      |
| PJT Partners Inc                       | PJT Partners Inc                       | CUSIP: 69343T107<br>LEI: 549300W3WBEQUBKYTN87 | Long             | EC               | CORP              | US        |      4300 | NS      | $600796.00    | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Progressive Corp/The                   | Progressive Corp/The                   | CUSIP: 743315103<br>LEI: 529900TACNVLY9DCR586 | Long             | EC               | CORP              | US        |      5622 | NS      | $1114505.28   | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Everpure Inc                           | Everpure Inc                           | CUSIP: 74624M102<br>LEI: 549300NPDB0BZTK3WO90 | Long             | EC               | CORP              | US        |     79302 | NS      | $4681990.08   | 2.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Rambus Inc                             | Rambus Inc                             | CUSIP: 750917106<br>LEI: 2549000211GDCQSLV833 | Long             | EC               | CORP              | US        |     57554 | NS      | $4951370.62   | 2.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Reddit Inc                             | Reddit Inc                             | CUSIP: 75734B100<br>LEI: 529900APN1YHPBHPI679 | Long             | EC               | CORP              | US        |      8359 | NS      | $1125539.35   | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Repligen Corp                          | Repligen Corp                          | CUSIP: 759916109<br>LEI: 54930006QJ0T5AUO1E71 | Long             | EC               | CORP              | US        |     29125 | NS      | $3431507.50   | 1.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Rubrik Inc                             | Rubrik Inc                             | CUSIP: 781154109<br>LEI: 254900TRGK2WTBYMYU27 | Long             | EC               | CORP              | US        |     11915 | NS      | $583477.55    | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| S&P Global Inc                         | S&P Global Inc                         | CUSIP: 78409V104<br>LEI: Y6X4K52KMJMZE7I7MY94 | Long             | EC               | CORP              | US        |      5499 | NS      | $2338944.66   | 1.20%             |  |  |  | No            |                  1 | On Loan: No      |
| Saia Inc                               | Saia Inc                               | CUSIP: 78709Y105<br>LEI: 549300WNPG4N9GBOYB29 | Long             | EC               | CORP              | US        |     10084 | NS      | $3542307.52   | 1.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Samsara Inc                            | Samsara Inc                            | CUSIP: 79589L106<br>LEI: 529900IE80DQBIFK3M88 | Long             | EC               | CORP              | US        |     35567 | NS      | $1127118.23   | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Shopify Inc                            | Shopify Inc                            | CUSIP: 82509L107<br>LEI: 549300HGQ43STJLLP808 | Long             | EC               | CORP              | CA        |      7378 | NS      | $875178.36    | 0.45%             |  |  |  | No            |                  1 | On Loan: No      |
| SiTime Corp                            | SiTime Corp                            | CUSIP: 82982T106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     21006 | NS      | $7254422.10   | 3.71%             |  |  |  | No            |                  1 | On Loan: No      |
| StandardAero Inc                       | StandardAero Inc                       | CUSIP: 85423L103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    165682 | NS      | $4279566.06   | 2.19%             |  |  |  | No            |                  1 | On Loan: No      |
| StepStone Group Inc                    | StepStone Group Inc                    | CUSIP: 85914M107<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     15997 | NS      | $763376.84    | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| T-Mobile US Inc                        | T-Mobile US Inc                        | CUSIP: 872590104<br>LEI: 549300QHIJYOHPACPG31 | Long             | EC               | CORP              | US        |      2715 | NS      | $570231.45    | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Talen Energy Corp                      | Talen Energy Corp                      | CUSIP: 87422Q109<br>LEI: K5K33XN0PQAU1XF7NN66 | Long             | EC               | CORP              | US        |      4581 | NS      | $1462392.63   | 0.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Tapestry Inc                           | Tapestry Inc                           | CUSIP: 876030107<br>LEI: 549300LJNVY5SW3VTN33 | Long             | EC               | CORP              | US        |      6076 | NS      | $857384.36    | 0.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Thornburg Capital Management Fund      | Thornburg Capital Management Fund      | CUSIP: 885216739<br>LEI: 549300GLR0WG6ALV5277 | Long             | EC               | RF                | US        |   1458799 | NS      | $14587993.23  | 7.46%             |  |  |  | No            |                  1 | On Loan: No      |
| Tradeweb Markets Inc                   | Tradeweb Markets Inc                   | CUSIP: 892672106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     31760 | NS      | $3736881.60   | 1.91%             |  |  |  | No            |                  1 | On Loan: No      |
| TransUnion                             | TransUnion                             | CUSIP: 89400J107<br>LEI: 549300ZS772LUNUMRB03 | Long             | EC               | CORP              | US        |     14982 | NS      | $1036604.58   | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Veeva Systems Inc                      | Veeva Systems Inc                      | CUSIP: 922475108<br>LEI: 549300YZEXPDB92M2F02 | Long             | EC               | CORP              | US        |      4761 | NS      | $836317.26    | 0.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Vanguard Small-Cap ETF                 | Vanguard Small-Cap ETF                 | CUSIP: 922908751<br>LEI: HZKQM2YGJWB4I8NIZL49 | Long             | EC               | RF                | US        |      6839 | NS      | $1791270.88   | 0.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Vertiv Holdings Co                     | Vertiv Holdings Co                     | CUSIP: 92537N108<br>LEI: 549300KTTIRAOGXCRV69 | Long             | EC               | CORP              | US        |     46559 | NS      | $11666754.22  | 5.97%             |  |  |  | No            |                  1 | On Loan: No      |
| Victoria's Secret & Co                 | Victoria's Secret & Co                 | CUSIP: 926400102<br>LEI: 5493006T3O70U3UWVF17 | Long             | EC               | CORP              | US        |     31756 | NS      | $1472208.16   | 0.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Wheaton Precious Metals Corp           | Wheaton Precious Metals Corp           | CUSIP: 962879102<br>LEI: 549300XSFG5ZCGVYD886 | Long             | EC               | CORP              | CA        |      4826 | NS      | $632254.26    | 0.32%             |  |  |  | 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        |     49113 | NS      | $4610237.31   | 2.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Marex Group PLC                        | Marex Group PLC                        | CUSIP: 000000000<br>LEI: 549300DWX0SVICJAL507 | Long             | EC               | CORP              | GB        |    161404 | NS      | $7195390.32   | 3.68%             |  |  |  | No            |                  1 | On Loan: No      |
| Royalty Pharma PLC                     | Royalty Pharma PLC                     | CUSIP: 000000000<br>LEI: 549300FGFN7VOK8BZR03 | Long             | EC               | CORP              | GB        |     31139 | NS      | $1493737.83   | 0.76%             |  |  |  | No            |                  1 | On Loan: No      |
| SharkNinja Inc                         | SharkNinja Inc                         | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | KY        |     64571 | NS      | $6838068.90   | 3.50%             |  |  |  | No            |                  1 | On Loan: No      |
| TechnipFMC PLC                         | TechnipFMC PLC                         | CUSIP: 000000000<br>LEI: 549300D5I93QWCJTCK36 | Long             | EC               | CORP              | GB        |    120553 | NS      | $8333828.89   | 4.26%             |  |  |  | No            |                  1 | On Loan: No      |
| On Holding AG                          | On Holding AG                          | CUSIP: 000000000<br>LEI: 506700FB3467B9W95526 | Long             | EC               | CORP              | CH        |     15118 | NS      | $514314.36    | 0.26%             |  |  |  | No            |                  1 | On Loan: No      |
| JFrog Ltd                              | JFrog Ltd                              | CUSIP: 000000000<br>LEI: 2549002N8E00AY49G567 | Long             | EC               | CORP              | IL        |    106399 | NS      | $4993305.07   | 2.55%             |  |  |  | No            |                  1 | On Loan: No      |
| AerCap Holdings NV                     | AerCap Holdings NV                     | CUSIP: 000000000<br>LEI: 549300SZYINBBLJQU475 | Long             | EC               | CORP              | NL        |      4325 | NS      | $593303.50    | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2026-04-23

**Name of Applicant:** THORNBURG INVESTMENT TRUST

**Signature:** Christopher Luckham

**Name of Signer:** Christopher Luckham

**Title:** Manager - Fund Admin