# EDGAR Filing Document

**Accession Number:** 0001806095
**File Stem:** 0002066578-26-001539
**Filing Date:** 2026-5
**Character Count:** 23279
**Document Hash:** 5fbb389d781833905652f12f0b0e25b9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002066578-26-001539.hdr.sgml**: 20260528

**ACCESSION NUMBER**: 0002066578-26-001539

**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:** 261031370

**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 SEPARATELY MANAGED ACCOUNT RESERVE TRUST (Series ID: S000084891)

| Class ID   | Class Name                                       | Ticker Symbol   |
|:---|:---|:---|
| C000249545 | BRANDES SEPARATELY MANAGED ACCOUNT RESERVE TRUST | SMARX           |

## 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 Separately Managed Account Reserve Trust Fund

- **b. EDGAR series identifier (if any):** S000084891

- **c. LEI of Series:** 25490041O77O0OKKOU83

**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:** $196302532.49

**Net Assets:** $196302532.49

**Currency Risk Metrics (dv01):**

- 

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

- **3-Month:** 7292.598386985342 | **1-Year:** 2225.123655038565 | **5-Year:** 14408.791296823263 | **10-Year:** 6195.488755596383 | **30-Year:** 3568.337848368992

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

- **3-Month:** 35.223979150457 | **1-Year:** 3278.960025271022 | **5-Year:** 6898.981565779281 | **10-Year:** 1896.080099155600 | **30-Year:** 0.000000000000

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000249545 | 0.18%                | 1.52%                | -1.43%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $7262.66                 | $-545275.36                                |
| Month 2  | $160393.32               | $1930034.67                                |
| Month 3  | $185729.01               | $-3745330.85                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| BANK OF AMERICA CORP F2F  | BANK OF AMERICA CORP F2F  | CUSIP: 06051GML0<br>LEI: 9DJT3UXIJIZJI4WXO774 | Long             | DBT              | CORP              | US        |   4200000 | PA      | $4280018.15   | 2.18%             | 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        |   5875000 | PA      | $4986465.00   | 2.54%             | 2030-07-15      | Fixed         | 11.12%                | Yes           |                  2 | On Loan: No      |
| UNIVISION COMMS. IN 8.00% | UNIVISION COMMS. IN 8.00% | CUSIP: 914906AY8<br>LEI: 549300YQDE2JSGTL8V47 | Long             | DBT              | CORP              | US        |   2855000 | PA      | $2897802.16   | 1.48%             | 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        |   4200000 | PA      | $4276865.67   | 2.18%             | 2031-01-24      | Fixed         | 5.14%                 | No            |                  2 | On Loan: No      |
| GOLDMAN SACHS GRP. IN F2V | GOLDMAN SACHS GRP. IN F2V | CUSIP: 38144GAE1<br>LEI: 784F5XWPLTWKTBV3E584 | Long             | DBT              | CORP              | US        |   6015000 | PA      | $5983140.35   | 3.05%             | 2049-12-31      | Fixed         | 3.80%                 | No            |                  2 | On Loan: No      |
| UNIVISION COMMS. IN 8.50% | UNIVISION COMMS. IN 8.50% | CUSIP: 914906AZ5<br>LEI: 549300YQDE2JSGTL8V47 | Long             | DBT              | CORP              | US        |   5250000 | PA      | $5275620.00   | 2.69%             | 2031-07-31      | Fixed         | 8.50%                 | Yes           |                  2 | On Loan: No      |
| CITIGROUP INC F2V         | CITIGROUP INC F2V         | CUSIP: 17327CAV5<br>LEI: 6SHGI4ZSSLCXXQSBB395 | Long             | DBT              | CORP              | US        |   3680000 | PA      | $3707328.05   | 1.89%             | 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        |   3955000 | PA      | $3954748.86   | 2.01%             | 2032-07-15      | Fixed         | 9.62%                 | Yes           |                  2 | On Loan: No      |
| ORGANON / ORGANON 4.125%  | ORGANON / ORGANON 4.125%  | CUSIP: 68622TAA9<br>LEI: 549300AMCKY57OK2CO56 | Long             | DBT              | CORP              | US        |   7810000 | PA      | $7578460.52   | 3.86%             | 2028-04-30      | Fixed         | 4.12%                 | Yes           |                  2 | On Loan: No      |
| AMERICAN TRANSMISSI 2.65% | AMERICAN TRANSMISSI 2.65% | CUSIP: 030288AC8<br>LEI: N/A                  | Long             | DBT              | CORP              | US        |   2930000 | PA      | $2625206.40   | 1.34%             | 2032-01-15      | Fixed         | 2.65%                 | Yes           |                  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        |   3845000 | PA      | $3672806.29   | 1.87%             | 2031-04-15      | Fixed         | 4.25%                 | 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        |   2026163 | PA      | $1805970.82   | 0.92%             | 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        |   1845000 | PA      | $1950943.59   | 0.99%             | 2030-06-01      | Fixed         | 10.00%                | Yes           |                  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        |   3345000 | PA      | $3320300.69   | 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        |   2271500 | PA      | $2362798.40   | 1.20%             | 2030-02-15      | Fixed         | 8.75%                 | 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        |   1940000 | PA      | $1864218.36   | 0.95%             | 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        |   2612658 | PA      | $2437502.04   | 1.24%             | 2047-10-01      | Fixed         | 3.50%                 | No            |                  2 | On Loan: No      |
| OPTICS BIDCO SPA 6.375%   | OPTICS BIDCO SPA 6.375%   | CUSIP: 683879AB6<br>LEI: 8156007022402E114A31 | Long             | DBT              | CORP              | IT        |   3767000 | PA      | $3722248.04   | 1.90%             | 2033-11-15      | Fixed         | 6.38%                 | Yes           |                  2 | On Loan: No      |
| GOLDMAN SACHS GRP. IN F2F | GOLDMAN SACHS GRP. IN F2F | CUSIP: 38141GB29<br>LEI: 784F5XWPLTWKTBV3E584 | Long             | DBT              | CORP              | US        |   3200000 | PA      | $3238551.74   | 1.65%             | 2030-07-23      | Fixed         | 5.05%                 | No            |                  2 | On Loan: No      |
| FREDDIE MAC POOL 4.00%    | FREDDIE MAC POOL 4.00%    | CUSIP: 3132DV3L7<br>LEI: S6XOOCT0IEG5ABCC6L87 | Long             | ABS-MBS          | USGSE             | US        |    268822 | PA      | $257227.19    | 0.13%             | 2049-07-01      | Fixed         | 4.00%                 | No            |                  2 | On Loan: No      |
| ALPHABET INC 4.10%        | ALPHABET INC 4.10%        | CUSIP: 02079KBK2<br>LEI: 5493006MHB84DD0ZWV18 | Long             | DBT              | CORP              | US        |   4110000 | PA      | $4081439.77   | 2.08%             | 2031-02-15      | Fixed         | 4.10%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 3.50%  | UNITED STATES TSY. 3.50%  | CUSIP: 912810QA9<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  10500000 | PA      | $9472968.75   | 4.83%             | 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        |  13550000 | PA      | $11740863.35  | 5.98%             | 2043-11-15      | Fixed         | 3.75%                 | No            |                  2 | On Loan: No      |
| NI TREASURY PORTFOLIO     | NI TREASURY PORTFOLIO     | CUSIP: 665279873<br>LEI: 549300Y178DO5JBR1S04 | Long             | STIV             | RF                | US        |   6139836 | NS      | $6139836.17   | 3.13%             |  |  |  | No            |                  1 | On Loan: No      |
| NETFLIX INC 4.375%        | NETFLIX INC 4.375%        | CUSIP: 64110LAN6<br>LEI: 549300Y7VHGU0I7CE873 | Long             | DBT              | CORP              | US        |   1840000 | PA      | $1842749.18   | 0.94%             | 2026-11-15      | Fixed         | 4.38%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 3.00%  | UNITED STATES TSY. 3.00%  | CUSIP: 912810RX8<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  19750000 | PA      | $14678261.62  | 7.48%             | 2047-05-15      | Fixed         | 3.00%                 | 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        |    527631 | PA      | $489249.42    | 0.25%             | 2049-07-01      | Fixed         | 3.50%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 4.375% | UNITED STATES TSY. 4.375% | CUSIP: 91282CKQ3<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |    400000 | PA      | $404218.75    | 0.21%             | 2034-05-15      | Fixed         | 4.38%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 4.75%  | UNITED STATES TSY. 4.75%  | CUSIP: 912810UK2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   5000000 | PA      | $4868554.70   | 2.48%             | 2055-05-15      | Fixed         | 4.75%                 | 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        |   6025000 | PA      | $5959984.83   | 3.04%             | 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        |   6055000 | PA      | $6033734.90   | 3.07%             | 2036-03-01      | Fixed         | 4.58%                 | No            |                  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        |    270000 | PA      | $270337.50    | 0.14%             | 2026-04-15      | Fixed         | 5.75%                 | Yes           |                  2 | On Loan: No      |
| FANNIE MAE POOL 4.00%     | FANNIE MAE POOL 4.00%     | CUSIP: 31418DCZ3<br>LEI: S6XOOCT0IEG5ABCC6L87 | Long             | ABS-MBS          | USGSE             | US        |    526272 | PA      | $498473.03    | 0.25%             | 2049-06-01      | Fixed         | 4.00%                 | No            |                  2 | On Loan: No      |
| METHANEX CORP 5.25%       | METHANEX CORP 5.25%       | CUSIP: 59151KAL2<br>LEI: 549300TSJHRXT9QXRD13 | Long             | DBT              | CORP              | CA        |   2255000 | PA      | $2232512.91   | 1.14%             | 2029-12-15      | Fixed         | 5.25%                 | No            |                  2 | On Loan: No      |
| UNITED STATES TSY. 4.75%  | UNITED STATES TSY. 4.75%  | CUSIP: 912810PT9<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  24150000 | PA      | $25012230.35  | 12.74%            | 2037-02-15      | Fixed         | 4.75%                 | 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        |    795200 | PA      | $799126.40    | 0.41%             | 2028-03-20      | Fixed         | 5.15%                 | Yes           |                  2 | On Loan: No      |
| SEALED AIR CORP 4.00%     | SEALED AIR CORP 4.00%     | CUSIP: 81211KAY6<br>LEI: Q0M0CZB4YN6JZ65WXI09 | Long             | DBT              | CORP              | US        |   1990000 | PA      | $1985021.52   | 1.01%             | 2027-12-01      | Fixed         | 4.00%                 | Yes           |                  2 | On Loan: No      |
| PNC FINL. SERVS. GRP. F2F | PNC FINL. SERVS. GRP. F2F | CUSIP: 693475CG8<br>LEI: CFGNEKW0P8842LEUIA51 | Long             | DBT              | CORP              | US        |   4280000 | PA      | $4257416.02   | 2.17%             | 2029-01-26      | Fixed         | 4.08%                 | No            |                  2 | On Loan: No      |
| METHANEX CORP 5.125%      | METHANEX CORP 5.125%      | CUSIP: 59151KAM0<br>LEI: 549300TSJHRXT9QXRD13 | Long             | DBT              | CORP              | CA        |   1249000 | PA      | $1241225.47   | 0.63%             | 2027-10-15      | Fixed         | 5.12%                 | No            |                  2 | On Loan: No      |
| EXPEDIA GRP. INC 3.25%    | EXPEDIA GRP. INC 3.25%    | CUSIP: 30212PAR6<br>LEI: CI7MUJI4USF3V0NJ1H64 | Long             | DBT              | CORP              | US        |   1732000 | PA      | $1636635.89   | 0.83%             | 2030-02-15      | Fixed         | 3.25%                 | No            |                  2 | On Loan: No      |
| PITNEY BOWES INC 7.25%    | PITNEY BOWES INC 7.25%    | CUSIP: 724479AQ3<br>LEI: 549300N2O26NW4ST6W55 | Long             | DBT              | CORP              | US        |   3580000 | PA      | $3575700.92   | 1.82%             | 2029-03-15      | Fixed         | 7.25%                 | Yes           |                  2 | On Loan: No      |
| TRAVEL + LEISURE C 6.625% | TRAVEL + LEISURE C 6.625% | CUSIP: 98310WAS7<br>LEI: T4VNTWMFQ7JQB65L7T35 | Long             | DBT              | CORP              | US        |   4675000 | PA      | $4678964.40   | 2.38%             | 2026-07-31      | Fixed         | 6.62%                 | Yes           |                  2 | On Loan: No      |
| SLM PRIVATE CREDIT ST FRN | SLM PRIVATE CREDIT ST FRN | CUSIP: 78443CBP8<br>LEI: 549300ZTEFT8CS12SF95 | Long             | ABS-O            | CORP              | US        |    624326 | PA      | $618198.77    | 0.31%             | 2033-09-15      | Variable      | 4.41%                 | 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        |    149595 | PA      | $140469.13    | 0.07%             | 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        |    460871 | PA      | $414211.20    | 0.21%             | 2047-02-01      | Fixed         | 3.00%                 | No            |                  2 | On Loan: No      |
| EXPEDIA GRP. INC 3.80%    | EXPEDIA GRP. INC 3.80%    | CUSIP: 30212PAP0<br>LEI: CI7MUJI4USF3V0NJ1H64 | Long             | DBT              | CORP              | US        |    810000 | PA      | $799045.92    | 0.41%             | 2028-02-15      | Fixed         | 3.80%                 | No            |                  2 | On Loan: No      |
| TELECOM ITALIA CAP 6.375% | TELECOM ITALIA CAP 6.375% | CUSIP: 87927VAF5<br>LEI: 549300777DJZOR5C4L39 | Long             | DBT              | CORP              | LU        |    633000 | PA      | $661297.14    | 0.34%             | 2033-11-15      | Fixed         | 6.38%                 | No            |                  2 | On Loan: No      |
| SLM PRIVATE CREDIT ST FRN | SLM PRIVATE CREDIT ST FRN | CUSIP: 78443CBV5<br>LEI: 549300ZTEFT8CS12SF95 | Long             | ABS-O            | CORP              | US        |    464015 | PA      | $459968.49    | 0.23%             | 2038-12-15      | Floating      | 4.25%                 | No            |                  2 | On Loan: No      |
| USB CAPITAL IX VAR        | USB CAPITAL IX VAR        | CUSIP: 91731KAA8<br>LEI: N/A                  | Long             | DBT              | CORP              | US        |   8525000 | PA      | $6765364.98   | 3.45%             | 2049-12-31      | Floating      | 4.95%                 | No            |                  2 | On Loan: No      |
| WELLS FARGO MORTGAGE VAR  | WELLS FARGO MORTGAGE VAR  | CUSIP: 94984MAC8<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |       669 | PA      | $630.64       | 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        |    964311 | PA      | $940021.84    | 0.48%             | 2039-06-15      | Floating      | 4.23%                 | No            |                  2 | On Loan: No      |
| FANNIE MAE POOL 3.50%     | FANNIE MAE POOL 3.50%     | CUSIP: 3140JPM93<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |    443944 | PA      | $411649.86    | 0.21%             | 2049-06-01      | Fixed         | 3.50%                 | No            |                  2 | On Loan: No      |
| IRON MOUNTAIN INC 4.875%  | IRON MOUNTAIN INC 4.875%  | CUSIP: 46284VAC5<br>LEI: SQL3F6CKNNBM3SQGHX24 | Long             | DBT              | CORP              | US        |   2925000 | PA      | $2919354.75   | 1.49%             | 2027-09-15      | Fixed         | 4.88%                 | Yes           |                  2 | On Loan: No      |
| FANNIE MAE POOL 3.00%     | FANNIE MAE POOL 3.00%     | CUSIP: 3140Q8YW9<br>LEI: B1V7KEBTPIMZEU4LTD58 | Long             | ABS-MBS          | USGSE             | US        |    546022 | PA      | $529725.18    | 0.27%             | 2033-04-01      | Fixed         | 3.00%                 | No            |                  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        |    300970 | PA      | $294300.84    | 0.15%             | 2030-12-01      | Fixed         | 3.00%                 | 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