# EDGAR Filing Document

**Accession Number:** 0001806095
**File Stem:** 0002066578-26-001543
**Filing Date:** 2026-5
**Character Count:** 28357
**Document Hash:** 41e46bae88347a542f3d4f59a2ae285c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002066578-26-001543.hdr.sgml**: 20260528

**ACCESSION NUMBER**: 0002066578-26-001543

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260528

**DATE AS OF CHANGE**: 20260528

**PERIOD START**: 20260331

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Datum One Series Trust
- **CENTRAL INDEX KEY:** 0001806095

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-23556
- **FILM NUMBER:** 261031375

**BUSINESS ADDRESS:**
- **STREET 1:** 333 SOUTH WABASH AVE.
- **STREET 2:** 43RD FLOOR
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60604
- **BUSINESS PHONE:** 866-494-4270

**MAIL ADDRESS:**
- **STREET 1:** 50 S. LASALLE STREET
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60603

## Series and Classes Contracts Data

### BRANDES CORE PLUS FIXED INCOME FUND (Series ID: S000084890)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000249542 | Class A      | BCPAX           |
| C000249543 | Class I      | BCPIX           |
| C000249544 | Class R6     | BCPRX           |

## Form NPORT-P: Monthly Portfolio Investments Report

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

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

- **a. Name of Registrant:** Datum One Series Trust

- **b. Investment Company Act file number:** 811-23556

- **c. CIK number of Registrant:** 0001806095

- **d. LEI of Registrant:** 5493003NXAX6X00BBF25

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

  - **Street Address 1:** 50 S. LaSalle Street

  - **City:** Chicago

  - **State:** IL

  - **Foreign country:** US

  - **Zip / Postal Code:** 60603

  - **Telephone number:** 312-557-4100

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

- **a. Name of Series:** Brandes Core Plus Fixed Income Fund

- **b. EDGAR series identifier (if any):** S000084890

- **c. LEI of Series:** 254900O6LSY2D7YTRP11

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

- **a. Date of fiscal year-end:** 2026-03-31

- **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:** $77934608.64

**Total Liabilities:** $59664.51

**Net Assets:** $77874944.13

**Currency Risk Metrics (dv01):**

- 

**Credit Spread Risk - Investment Grade (dv01):**

- **3-Month:** 1415.975215048110 | **1-Year:** 578.643215348434 | **5-Year:** 3739.348316954125 | **10-Year:** 2968.632580794463 | **30-Year:** 1011.992243662215

**Credit Spread Risk - Non-Investment Grade (dv01):**

- **3-Month:** 7.934924713787 | **1-Year:** 888.554266236451 | **5-Year:** 1965.415536735974 | **10-Year:** 590.008542906401 | **30-Year:** 0.000000000000

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000249542 | 0.02%                | 1.54%                | -1.63%               |
| Class ID C000249543 | 0.04%                | 1.54%                | -1.48%               |
| Class ID C000249544 | 0.04%                | 1.54%                | -1.60%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $41768.89                | $-299205.39                                |
| Month 2  | $56167.39                | $851217.18                                 |
| Month 3  | $-54103.92               | $-1526036.09                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| FREDDIE MAC POOL 4.00%    | FREDDIE MAC POOL 4.00%    | CUSIP: 3132DV3L7<br>LEI: S6XOOCT0IEG5ABCC6L87 | Long             | ABS-MBS          | USGSE             | US        |    161732 | PA      | $154756.09    | 0.20%             | 2049-07-01      | Fixed         | 4.00%                 | No            |                  2 | On Loan: No      |
| FANNIE MAE POOL 3.00%     | FANNIE MAE POOL 3.00%     | CUSIP: 31418DC91<br>LEI: S6XOOCT0IEG5ABCC6L87 | Long             | ABS-MBS          | USGSE             | US        |      3503 | PA      | $3376.66      | 0.00%             | 2034-07-01      | Fixed         | 3.00%                 | No            |                  2 | On Loan: No      |
| IRON MOUNTAIN INC 4.875%  | IRON MOUNTAIN INC 4.875%  | CUSIP: U46009AD5<br>LEI: SQL3F6CKNNBM3SQGHX24 | Long             | DBT              | CORP              | US        |     38767 | PA      | $38692.18     | 0.05%             | 2027-09-15      | Fixed         | 4.88%                 | Yes           |                  2 | On Loan: No      |
| BANK OF AMERICA CORP F2F  | BANK OF AMERICA CORP F2F  | CUSIP: 06051GML0<br>LEI: 9DJT3UXIJIZJI4WXO774 | Long             | DBT              | CORP              | US        |    800000 | PA      | $815241.55    | 1.05%             | 2031-01-24      | Fixed         | 5.16%                 | No            |                  2 | On Loan: No      |
| SABRE GLBL INC 11.125%    | SABRE GLBL INC 11.125%    | CUSIP: 78573NAM4<br>LEI: F2TJC7HPPHLHU1AQMP98 | Long             | DBT              | CORP              | US        |   1275000 | PA      | $1082169.00   | 1.39%             | 2030-07-15      | Fixed         | 11.12%                | Yes           |                  2 | On Loan: No      |
| ALPHABET INC 4.10%        | ALPHABET INC 4.10%        | CUSIP: 02079KBK2<br>LEI: 5493006MHB84DD0ZWV18 | Long             | DBT              | CORP              | US        |    815000 | PA      | $809336.60    | 1.04%             | 2031-02-15      | Fixed         | 4.10%                 | No            |                  2 | On Loan: No      |
| SLM PRIVATE CREDIT ST FRN | SLM PRIVATE CREDIT ST FRN | CUSIP: 78443CBP8<br>LEI: 549300ZTEFT8CS12SF95 | Long             | ABS-O            | CORP              | US        |    164051 | PA      | $162441.22    | 0.21%             | 2033-09-15      | Variable      | 4.41%                 | No            |                  2 | On Loan: No      |
| UNIVISION COMMS. IN 8.00% | UNIVISION COMMS. IN 8.00% | CUSIP: 914906AY8<br>LEI: 549300YQDE2JSGTL8V47 | Long             | DBT              | CORP              | US        |    965000 | PA      | $979467.28    | 1.26%             | 2028-08-15      | Fixed         | 8.00%                 | Yes           |                  2 | On Loan: No      |
| JPMORGAN CHASE & CO F2F   | JPMORGAN CHASE & CO F2F   | CUSIP: 46647PEV4<br>LEI: 8I5DZWZKVSZI1NUHU748 | Long             | DBT              | CORP              | US        |    800000 | PA      | $814641.08    | 1.05%             | 2031-01-24      | Fixed         | 5.14%                 | No            |                  2 | On Loan: No      |
| EXPEDIA GRP. INC 3.80%    | EXPEDIA GRP. INC 3.80%    | CUSIP: 30212PAP0<br>LEI: CI7MUJI4USF3V0NJ1H64 | Long             | DBT              | CORP              | US        |    150307 | PA      | $148274.32    | 0.19%             | 2028-02-15      | Fixed         | 3.80%                 | No            |                  2 | On Loan: No      |
| CITIGROUP INC F2V         | CITIGROUP INC F2V         | CUSIP: 17327CAV5<br>LEI: 6SHGI4ZSSLCXXQSBB395 | Long             | DBT              | CORP              | US        |   1115000 | PA      | $1123280.10   | 1.44%             | 2049-12-31      | Fixed         | 6.95%                 | No            |                  2 | On Loan: No      |
| GRAY MEDIA INC 9.625%     | GRAY MEDIA INC 9.625%     | CUSIP: 389375AN6<br>LEI: 529900TM5726KDN7UU35 | Long             | DBT              | CORP              | US        |    950000 | PA      | $949939.68    | 1.22%             | 2032-07-15      | Fixed         | 9.62%                 | Yes           |                  2 | On Loan: No      |
| FREDDIE MAC GOLD PO 6.50% | FREDDIE MAC GOLD PO 6.50% | CUSIP: 3128M8AT1<br>LEI: S6XOOCT0IEG5ABCC6L87 | Long             | ABS-MBS          | USGSE             | US        |      7984 | PA      | $8451.75      | 0.01%             | 2039-04-01      | Fixed         | 6.50%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 3.00%  | UNITED STATES TSY. 3.00%  | CUSIP: 912810RX8<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   7579223 | PA      | $5632902.18   | 7.23%             | 2047-05-15      | Fixed         | 3.00%                 | No            |                  2 | On Loan: No      |
| EXPEDIA GRP. INC 3.25%    | EXPEDIA GRP. INC 3.25%    | CUSIP: 30212PAR6<br>LEI: CI7MUJI4USF3V0NJ1H64 | Long             | DBT              | CORP              | US        |    796151 | PA      | $752314.84    | 0.97%             | 2030-02-15      | Fixed         | 3.25%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 4.375% | UNITED STATES TSY. 4.375% | CUSIP: 91282CKQ3<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   3325000 | PA      | $3360068.38   | 4.31%             | 2034-05-15      | Fixed         | 4.38%                 | No            |                  2 | On Loan: No      |
| FANNIE MAE POOL 4.02%     | FANNIE MAE POOL 4.02%     | CUSIP: 3140Q2AE8<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |   1160000 | PA      | $1147482.56   | 1.47%             | 2031-01-01      | Fixed         | 4.02%                 | No            |                  2 | On Loan: No      |
| FANNIE MAE POOL 4.58%     | FANNIE MAE POOL 4.58%     | CUSIP: 3140Q2EF1<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |   1235000 | PA      | $1230662.69   | 1.58%             | 2036-03-01      | Fixed         | 4.58%                 | No            |                  2 | On Loan: No      |
| WELLS FARGO MORTGAGE VAR  | WELLS FARGO MORTGAGE VAR  | CUSIP: 94984MAC8<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |       193 | PA      | $181.57       | 0.00%             | 2036-10-25      | Variable      | 6.00%                 | No            |                  2 | On Loan: No      |
| SLM PRIVATE CREDIT ST FRN | SLM PRIVATE CREDIT ST FRN | CUSIP: 78443CCL6<br>LEI: 549300ZTEFT8CS12SF95 | Long             | ABS-O            | CORP              | US        |    245285 | PA      | $239107.22    | 0.31%             | 2039-06-15      | Floating      | 4.23%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 2.25%  | UNITED STATES TSY. 2.25%  | CUSIP: 912828V98<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   2532255 | PA      | $2499387.12   | 3.21%             | 2027-02-15      | Fixed         | 2.25%                 | No            |                  2 | On Loan: No      |
| FANNIE MAE POOL 3.50%     | FANNIE MAE POOL 3.50%     | CUSIP: 3140H3ZT6<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |    188264 | PA      | $175495.59    | 0.23%             | 2047-12-01      | Fixed         | 3.50%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 1.625% | UNITED STATES TSY. 1.625% | CUSIP: 91282CCB5<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   5951124 | PA      | $5307426.27   | 6.82%             | 2031-05-15      | Fixed         | 1.62%                 | No            |                  2 | On Loan: No      |
| FREDDIE MAC POOL 3.00%    | FREDDIE MAC POOL 3.00%    | CUSIP: 3132DQFN1<br>LEI: S6XOOCT0IEG5ABCC6L87 | Long             | ABS-MBS          | USGSE             | US        |   1881294 | PA      | $1676845.33   | 2.15%             | 2052-01-01      | Fixed         | 3.00%                 | No            |                  2 | On Loan: No      |
| KOHL S CORP 10.00%        | KOHL S CORP 10.00%        | CUSIP: 500255AY0<br>LEI: 549300JF6LPRTRJ0FH50 | Long             | DBT              | CORP              | US        |    630000 | PA      | $666175.86    | 0.86%             | 2030-06-01      | Fixed         | 10.00%                | Yes           |                  2 | On Loan: No      |
| FREDDIE MAC GOLD PO 3.00% | FREDDIE MAC GOLD PO 3.00% | CUSIP: 3128MMUC5<br>LEI: S6XOOCT0IEG5ABCC6L87 | Long             | ABS-MBS          | USGSE             | US        |    243459 | PA      | $238064.26    | 0.31%             | 2030-12-01      | Fixed         | 3.00%                 | No            |                  2 | On Loan: No      |
| SPRINT SPECTRUM CO 5.152% | SPRINT SPECTRUM CO 5.152% | CUSIP: 85208NAE0<br>LEI: N/A                  | Long             | DBT              | CORP              | US        |    195537 | PA      | $196502.49    | 0.25%             | 2028-03-20      | Fixed         | 5.15%                 | Yes           |                  2 | On Loan: No      |
| GOLDMAN SACHS GRP. IN F2F | GOLDMAN SACHS GRP. IN F2F | CUSIP: 38141GB29<br>LEI: 784F5XWPLTWKTBV3E584 | Long             | DBT              | CORP              | US        |    800000 | PA      | $809637.94    | 1.04%             | 2030-07-23      | Fixed         | 5.05%                 | No            |                  2 | On Loan: No      |
| PNC FINL. SERVS. GRP. F2F | PNC FINL. SERVS. GRP. F2F | CUSIP: 693475CG8<br>LEI: CFGNEKW0P8842LEUIA51 | Long             | DBT              | CORP              | US        |    825000 | PA      | $820646.78    | 1.05%             | 2029-01-26      | Fixed         | 4.08%                 | No            |                  2 | On Loan: No      |
| META PLATFORMS INC 4.95%  | META PLATFORMS INC 4.95%  | CUSIP: 30303M8N5<br>LEI: BQ4BKCS1HXDV9HN80Z93 | Long             | DBT              | CORP              | US        |    395456 | PA      | $398808.56    | 0.51%             | 2033-05-15      | Fixed         | 4.95%                 | No            |                  2 | On Loan: No      |
| FANNIE MAE POOL 3.50%     | FANNIE MAE POOL 3.50%     | CUSIP: 3138WF3K0<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |    105426 | PA      | $98994.31     | 0.13%             | 2045-11-01      | Fixed         | 3.50%                 | No            |                  2 | On Loan: No      |
| FANNIE MAE POOL 3.00%     | FANNIE MAE POOL 3.00%     | CUSIP: 3138ER6B1<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |    548801 | PA      | $493238.75    | 0.63%             | 2047-02-01      | Fixed         | 3.00%                 | No            |                  2 | On Loan: No      |
| GOLDMAN SACHS GRP. IN F2V | GOLDMAN SACHS GRP. IN F2V | CUSIP: 38144GAE1<br>LEI: 784F5XWPLTWKTBV3E584 | Long             | DBT              | CORP              | US        |   1363842 | PA      | $1356618.14   | 1.74%             | 2049-12-31      | Fixed         | 3.80%                 | No            |                  2 | On Loan: No      |
| FREDDIE MAC POOL 3.50%    | FREDDIE MAC POOL 3.50%    | CUSIP: 3132DV3J2<br>LEI: S6XOOCT0IEG5ABCC6L87 | Long             | ABS-MBS          | USGSE             | US        |    162775 | PA      | $150934.48    | 0.19%             | 2049-07-01      | Fixed         | 3.50%                 | No            |                  2 | On Loan: No      |
| AMERICAN TRANSMISSI 2.65% | AMERICAN TRANSMISSI 2.65% | CUSIP: 030288AC8<br>LEI: N/A                  | Long             | DBT              | CORP              | US        |    677534 | PA      | $607053.44    | 0.78%             | 2032-01-15      | Fixed         | 2.65%                 | Yes           |                  2 | On Loan: No      |
| PRIME SEC. SERVS. B 5.75% | PRIME SEC. SERVS. B 5.75% | CUSIP: 74166MAC0<br>LEI: 549300O6QPZVWXV2DC15 | Long             | DBT              | CORP              | US        |     54223 | PA      | $54290.78     | 0.07%             | 2026-04-15      | Fixed         | 5.75%                 | Yes           |                  2 | On Loan: No      |
| FANNIE MAE POOL 3.50%     | FANNIE MAE POOL 3.50%     | CUSIP: 3140JPM93<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |    281856 | PA      | $261352.84    | 0.34%             | 2049-06-01      | Fixed         | 3.50%                 | No            |                  2 | On Loan: No      |
| METHANEX CORP 5.25%       | METHANEX CORP 5.25%       | CUSIP: 59151KAL2<br>LEI: 549300TSJHRXT9QXRD13 | Long             | DBT              | CORP              | CA        |    541689 | PA      | $536287.22    | 0.69%             | 2029-12-15      | Fixed         | 5.25%                 | No            |                  2 | On Loan: No      |
| PILGRIM S PRIDE COR 4.25% | PILGRIM S PRIDE COR 4.25% | CUSIP: 72147KAJ7<br>LEI: 549300ZSLGV64ZL3HD75 | Long             | DBT              | CORP              | US        |    986533 | PA      | $942352.30    | 1.21%             | 2031-04-15      | Fixed         | 4.25%                 | No            |                  2 | On Loan: No      |
| FREDDIE MAC GOLD PO 4.50% | FREDDIE MAC GOLD PO 4.50% | CUSIP: 3129413N5<br>LEI: S6XOOCT0IEG5ABCC6L87 | Long             | ABS-MBS          | USGSE             | US        |     33500 | PA      | $33194.88     | 0.04%             | 2040-08-01      | Fixed         | 4.50%                 | No            |                  2 | On Loan: No      |
| FANNIE MAE POOL 3.00%     | FANNIE MAE POOL 3.00%     | CUSIP: 3140Q8YW9<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |    267417 | PA      | $259435.72    | 0.33%             | 2033-04-01      | Fixed         | 3.00%                 | No            |                  2 | On Loan: No      |
| FORD MOTOR CREDIT C 2.70% | FORD MOTOR CREDIT C 2.70% | CUSIP: 345397B77<br>LEI: UDSQCVRUX5BONN0VY111 | Long             | DBT              | CORP              | US        |   1328842 | PA      | $1319029.90   | 1.69%             | 2026-08-10      | Fixed         | 2.70%                 | No            |                  2 | On Loan: No      |
| TRANSOCEAN INTL. LT 8.75% | TRANSOCEAN INTL. LT 8.75% | CUSIP: 893830BX6<br>LEI: DOL4HJ22ADYSIWES4H94 | Long             | DBT              | CORP              | BM        |    750721 | PA      | $780894.99    | 1.00%             | 2030-02-15      | Fixed         | 8.75%                 | Yes           |                  2 | On Loan: No      |
| SEALED AIR CORP 4.00%     | SEALED AIR CORP 4.00%     | CUSIP: 81211KAY6<br>LEI: Q0M0CZB4YN6JZ65WXI09 | Long             | DBT              | CORP              | US        |    594612 | PA      | $593124.43    | 0.76%             | 2027-12-01      | Fixed         | 4.00%                 | Yes           |                  2 | On Loan: No      |
| HESS MIDSTREAM OPER 4.25% | HESS MIDSTREAM OPER 4.25% | CUSIP: 428102AE7<br>LEI: N/A                  | Long             | DBT              | CORP              | US        |    516689 | PA      | $496505.73    | 0.64%             | 2030-02-15      | Fixed         | 4.25%                 | Yes           |                  2 | On Loan: No      |
| FANNIE MAE POOL 3.50%     | FANNIE MAE POOL 3.50%     | CUSIP: 3140Q7RD1<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |    549265 | PA      | $512441.94    | 0.66%             | 2047-10-01      | Fixed         | 3.50%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 3.50%  | UNITED STATES TSY. 3.50%  | CUSIP: 912810QA9<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |    832289 | PA      | $750880.73    | 0.96%             | 2039-02-15      | Fixed         | 3.50%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 3.75%  | UNITED STATES TSY. 3.75%  | CUSIP: 912810RD2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   7586874 | PA      | $6573907.81   | 8.44%             | 2043-11-15      | Fixed         | 3.75%                 | No            |                  2 | On Loan: No      |
| FANNIE MAE POOL 4.00%     | FANNIE MAE POOL 4.00%     | CUSIP: 31418DCZ3<br>LEI: S6XOOCT0IEG5ABCC6L87 | Long             | ABS-MBS          | USGSE             | US        |    129651 | PA      | $122802.81    | 0.16%             | 2049-06-01      | Fixed         | 4.00%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 4.75%  | UNITED STATES TSY. 4.75%  | CUSIP: 912810PT9<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   6600497 | PA      | $6836155.34   | 8.78%             | 2037-02-15      | Fixed         | 4.75%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 2.375% | UNITED STATES TSY. 2.375% | CUSIP: 9128286T2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  10011090 | PA      | $9584836.61   | 12.31%            | 2029-05-15      | Fixed         | 2.38%                 | No            |                  2 | On Loan: No      |
| NI TREASURY PORTFOLIO     | NI TREASURY PORTFOLIO     | CUSIP: 665279873<br>LEI: 549300Y178DO5JBR1S04 | Long             | STIV             | RF                | US        |   1856345 | NS      | $1856344.68   | 2.38%             |  |  |  | No            |                  1 | On Loan: No      |
| SLM PRIVATE CREDIT ST FRN | SLM PRIVATE CREDIT ST FRN | CUSIP: 78443CBV5<br>LEI: 549300ZTEFT8CS12SF95 | Long             | ABS-O            | CORP              | US        |    136724 | PA      | $135531.64    | 0.17%             | 2038-12-15      | Floating      | 4.25%                 | No            |                  2 | On Loan: No      |
| SLM PRIVATE CREDIT ST FRN | SLM PRIVATE CREDIT ST FRN | CUSIP: 78443DAD4<br>LEI: 549300T563MF7L069881 | Long             | ABS-O            | CORP              | US        |     79382 | PA      | $78347.10     | 0.10%             | 2041-12-16      | Floating      | 4.18%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 4.75%  | UNITED STATES TSY. 4.75%  | CUSIP: 912810UK2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |    650000 | PA      | $632912.11    | 0.81%             | 2055-05-15      | Fixed         | 4.75%                 | No            |                  2 | On Loan: No      |
| IRON MOUNTAIN INC 4.875%  | IRON MOUNTAIN INC 4.875%  | CUSIP: 46284VAC5<br>LEI: SQL3F6CKNNBM3SQGHX24 | Long             | DBT              | CORP              | US        |    852228 | PA      | $850583.20    | 1.09%             | 2027-09-15      | Fixed         | 4.88%                 | Yes           |                  2 | On Loan: No      |
| OPTICS BIDCO SPA 6.375%   | OPTICS BIDCO SPA 6.375%   | CUSIP: 683879AB6<br>LEI: 8156007022402E114A31 | Long             | DBT              | CORP              | IT        |   1278000 | PA      | $1262817.36   | 1.62%             | 2033-11-15      | Fixed         | 6.38%                 | Yes           |                  2 | On Loan: No      |
| METHANEX CORP 5.125%      | METHANEX CORP 5.125%      | CUSIP: 59151KAM0<br>LEI: 549300TSJHRXT9QXRD13 | Long             | DBT              | CORP              | CA        |    283229 | PA      | $281466.01    | 0.36%             | 2027-10-15      | Fixed         | 5.12%                 | No            |                  2 | On Loan: No      |
| FANNIE MAE POOL 4.00%     | FANNIE MAE POOL 4.00%     | CUSIP: 31418AAU2<br>LEI: 2549001DPIFGXC1TOL40 | Long             | ABS-MBS          | USGSE             | US        |     81108 | PA      | $78314.06     | 0.10%             | 2041-12-01      | Fixed         | 4.00%                 | No            |                  2 | On Loan: No      |
| NETFLIX INC 4.375%        | NETFLIX INC 4.375%        | CUSIP: 64110LAN6<br>LEI: 549300Y7VHGU0I7CE873 | Long             | DBT              | CORP              | US        |    336608 | PA      | $337110.93    | 0.43%             | 2026-11-15      | Fixed         | 4.38%                 | No            |                  2 | On Loan: No      |
| UNIVISION COMMS. IN 8.50% | UNIVISION COMMS. IN 8.50% | CUSIP: 914906AZ5<br>LEI: 549300YQDE2JSGTL8V47 | Long             | DBT              | CORP              | US        |   1765000 | PA      | $1773613.20   | 2.28%             | 2031-07-31      | Fixed         | 8.50%                 | Yes           |                  2 | On Loan: No      |
| TELECOM ITALIA CAP 6.375% | TELECOM ITALIA CAP 6.375% | CUSIP: 87927VAF5<br>LEI: 549300777DJZOR5C4L39 | Long             | DBT              | CORP              | LU        |    182302 | PA      | $190451.49    | 0.24%             | 2033-11-15      | Fixed         | 6.38%                 | No            |                  2 | On Loan: No      |
| COMMONWEALTH EDISON 5.90% | COMMONWEALTH EDISON 5.90% | CUSIP: 202795HK9<br>LEI: D8YOXB8L2ZDC8P7Q0771 | Long             | DBT              | CORP              | US        |    237766 | PA      | $252462.19    | 0.32%             | 2036-03-15      | Fixed         | 5.90%                 | No            |                  2 | On Loan: No      |
| ORGANON / ORGANON 4.125%  | ORGANON / ORGANON 4.125%  | CUSIP: 68622TAA9<br>LEI: 549300AMCKY57OK2CO56 | Long             | DBT              | CORP              | US        |   1655000 | PA      | $1605934.98   | 2.06%             | 2028-04-30      | Fixed         | 4.12%                 | Yes           |                  2 | On Loan: No      |
| USB CAPITAL IX VAR        | USB CAPITAL IX VAR        | CUSIP: 91731KAA8<br>LEI: N/A                  | Long             | DBT              | CORP              | US        |   1629060 | PA      | $1292807.68   | 1.66%             | 2049-12-31      | Floating      | 4.95%                 | No            |                  2 | On Loan: No      |
| PITNEY BOWES INC 7.25%    | PITNEY BOWES INC 7.25%    | CUSIP: 724479AQ3<br>LEI: 549300N2O26NW4ST6W55 | Long             | DBT              | CORP              | US        |   1205000 | PA      | $1203552.96   | 1.55%             | 2029-03-15      | Fixed         | 7.25%                 | Yes           |                  2 | On Loan: No      |
| FANNIE MAE POOL 5.50%     | FANNIE MAE POOL 5.50%     | CUSIP: 31412TG98<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |     30774 | PA      | $31626.20     | 0.04%             | 2038-07-01      | Fixed         | 5.50%                 | No            |                  2 | On Loan: No      |
| TRAVEL + LEISURE C 6.625% | TRAVEL + LEISURE C 6.625% | CUSIP: 98310WAS7<br>LEI: T4VNTWMFQ7JQB65L7T35 | Long             | DBT              | CORP              | US        |   1056839 | PA      | $1057735.20   | 1.36%             | 2026-07-31      | Fixed         | 6.62%                 | Yes           |                  2 | On Loan: No      |
| FIFTH THIRD BANCORP 8.25% | FIFTH THIRD BANCORP 8.25% | CUSIP: 316773CH1<br>LEI: THRNG6BD57P9QWTQLG42 | Long             | DBT              | CORP              | US        |    380381 | PA      | $457285.46    | 0.59%             | 2038-03-01      | Fixed         | 8.25%                 | No            |                  2 | On Loan: No      |

### Signature

**Date Signed:** 2026-04-27

**Name of Applicant:** Datum One Series Trust

**Signature:** Tracy L. Dotolo

**Name of Signer:** Tracy L. Dotolo

**Title:** Treasurer