# EDGAR Filing Document

**Accession Number:** 0001806095
**File Stem:** 0002066578-25-000946
**Filing Date:** 2025-11
**Character Count:** 20967
**Document Hash:** c733e941c8832347cf69a67a52df4755
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002066578-25-000946.hdr.sgml**: 20251117

**ACCESSION NUMBER**: 0002066578-25-000946

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251117

**DATE AS OF CHANGE**: 20251117

**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:** 251490003

**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

### POLAR CAPITAL INTERNATIONAL SMALL COMPANY FUND (Series ID: S000085283)

| Class ID   | Class Name                                     | Ticker Symbol   |
|:---|:---|:---|
| C000250258 | POLAR CAPITAL INTERNATIONAL SMALL COMPANY FUND | PCSCX           |

## 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:** Polar Capital International Small Company Fund

- **b. EDGAR series identifier (if any):** S000085283

- **c. LEI of Series:** 2549007HPIACIDYY7M46

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

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

- **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:** $139351711.29

**Total Liabilities:** $225107.47

**Net Assets:** $139126603.82

**Cash Not Reported:** $742287.05

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000250258 | 0.46%                | 3.01%                | -3.37%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $39711.99                | $560171.25                                 |
| Month 2  | $330680.79               | $4006442.40                                |
| Month 3  | $37961.24                | $-4891042.45                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| YouGov PLC                                  | YouGov PLC ORD GBP0.002                             | CUSIP: G9875S112<br>LEI: 213800MZGBGCJIPOBB41 | Long             | EC               | CORP              | GB        |    205982 | NS      | $829690.46    | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Kinaxis Inc                                 | Kinaxis Inc COM NPV                                 | CUSIP: 49448Q109<br>LEI: 5299009VAZ14K7PFUQ15 | Long             | EC               | CORP              | CA        |     25234 | NS      | $3257374.51   | 2.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Ambu A/S                                    | Ambu A/S SER'B'DKK0.50                              | CUSIP: K03293147<br>LEI: 5299008W2A69WX355710 | Long             | EC               | CORP              | DK        |     60340 | NS      | $887719.44    | 0.64%             |  |  |  | No            |                  2 | On Loan: No      |
| Funding Circle Holdings PLC                 | Funding Circle Holdings PLC ORD GBP0.001            | CUSIP: G3691F107<br>LEI: 2138003EK6UAINBBUS19 | Long             | EC               | CORP              | GB        |   1071867 | NS      | $1791270.46   | 1.29%             |  |  |  | Yes           |                  2 | On Loan: No      |
| Auction Technology Group PLC                | Auction Technology Group PLC ORD GBP0.0001          | CUSIP: G0623K105<br>LEI: 213800U8Q9K2XI3WRE39 | Long             | EC               | CORP              | GB        |    298123 | NS      | $1291044.92   | 0.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Hemnet Group Ab                             | Hemnet Group Ab NPV                                 | CUSIP: W3995N162<br>LEI: 5493008VIU67J3HUAR07 | Long             | EC               | CORP              | SE        |     76308 | NS      | $1924433.43   | 1.38%             |  |  |  | No            |                  2 | On Loan: No      |
| Baltic Classifieds Group PLC                | Baltic Classifieds Group PLC ORD GBP0.01            | CUSIP: G07167102<br>LEI: 213800I1RPHCFSSQS969 | Long             | EC               | CORP              | GB        |    769303 | NS      | $3207370.40   | 2.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Devyser Diagnostics AB                      | Devyser Diagnostics AB NPV                          | CUSIP: W2533X146<br>LEI: 549300RV4Z2K3360CK30 | Long             | EC               | CORP              | SE        |    269450 | NS      | $4071582.06   | 2.93%             |  |  |  | No            |                  2 | On Loan: No      |
| One Career Inc                              | One Career Inc NPV                                  | CUSIP: J6147T107<br>LEI: N/A                  | Long             | EC               | CORP              | JP        |    239800 | NS      | $4232785.45   | 3.04%             |  |  |  | No            |                  2 | On Loan: No      |
| Apotea AB                                   | Apotea AB NPV                                       | CUSIP: W05022111<br>LEI: 6367005D3D7BO6FIEV09 | Long             | EC               | CORP              | SE        |    586241 | NS      | $5588305.09   | 4.02%             |  |  |  | No            |                  2 | On Loan: No      |
| Boku Inc                                    | Boku Inc CMN SHS USD0.0001 (DI) REG S CAT 3/144A    | CUSIP: U7744C106<br>LEI: 549300Y4P2ZPFKCZ0C60 | Long             | EC               | CORP              | US        |   1594643 | NS      | $4814706.45   | 3.46%             |  |  |  | Yes           |                  1 | On Loan: No      |
| Freee K.K.                                  | Freee K.K. NPV                                      | CUSIP: J1513Q100<br>LEI: N/A                  | Long             | EC               | CORP              | JP        |     73600 | NS      | $1748853.21   | 1.26%             |  |  |  | No            |                  2 | On Loan: No      |
| Smartcraft Asa                              | Smartcraft Asa NOK0.01                              | CUSIP: R7T54K113<br>LEI: 5493008ELCGPWZHWUX47 | Long             | EC               | CORP              | NO        |   1925782 | NS      | $5268158.24   | 3.79%             |  |  |  | Yes           |                  1 | On Loan: No      |
| Autostore Holdings Ltd.                     | Autostore Holdings Ltd. USD0.01                     | CUSIP: G0670A109<br>LEI: 549300KYN3M0LSM5A413 | Long             | EC               | CORP              | BM        |   3309847 | NS      | $3039992.72   | 2.19%             |  |  |  | Yes           |                  2 | On Loan: No      |
| Ipd Group Limited                           | Ipd Group Limited NPV                               | CUSIP: Q496BN109<br>LEI: N/A                  | Long             | EC               | CORP              | AU        |    791656 | NS      | $2074401.66   | 1.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Integral Corp.                              | Integral Corp. NPV                                  | CUSIP: J2401C104<br>LEI: 254900LBW5E2GUM0UK59 | Long             | EC               | CORP              | JP        |    102700 | NS      | $2597224.36   | 1.87%             |  |  |  | No            |                  2 | On Loan: No      |
| Innoscripta SE                              | Innoscripta SE NPV                                  | CUSIP: D3687G104<br>LEI: 894500BA6B025ZEF0T83 | Long             | EC               | CORP              | DE        |     75926 | NS      | $10465145.04  | 7.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Corporacion Inmobiliaria Vesta S A B De C V | Corporacion Inmobiliaria Vesta S A B De C V COM NPV | CUSIP: P9781N108<br>LEI: 4469000001BIRIFZJ959 | Long             | EC               | CORP              | MX        |    613876 | NS      | $1737697.97   | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| M Up Holdings Inc                           | M Up Holdings Inc NPV                               | CUSIP: J47013107<br>LEI: N/A                  | Long             | EC               | CORP              | JP        |    248500 | NS      | $3556549.77   | 2.56%             |  |  |  | No            |                  2 | On Loan: No      |
| Money Forward Inc.                          | Money Forward Inc. NPV                              | CUSIP: J4659A103<br>LEI: 35380017JS3GIGP6WN95 | Long             | EC               | CORP              | JP        |     57600 | NS      | $2329573.92   | 1.67%             |  |  |  | No            |                  2 | On Loan: No      |
| Lime Technologies AB                        | Lime Technologies AB NPV                            | CUSIP: W5321Z116<br>LEI: 5493008UUFYDF3ZTHC65 | Long             | EC               | CORP              | SE        |     84001 | NS      | $2847268.04   | 2.05%             |  |  |  | Yes           |                  2 | On Loan: No      |
| AddLife AB                                  | AddLife AB SER'B'NPV                                | CUSIP: W0R093258<br>LEI: 5493005T3M7CD7XWE013 | Long             | EC               | CORP              | SE        |     90679 | NS      | $1716540.93   | 1.23%             |  |  |  | No            |                  2 | On Loan: No      |
| PSI Software SE                             | PSI Software SE NPV (REGD)                          | CUSIP: D6S2HZ103<br>LEI: 529900OS5AIRXC3T2J37 | Long             | EC               | CORP              | DE        |     85434 | NS      | $2670900.90   | 1.92%             |  |  |  | No            |                  2 | On Loan: No      |
| Neuren Pharmaceuticals Ltd.                 | Neuren Pharmaceuticals Ltd. NPV                     | CUSIP: Q6634F109<br>LEI: N/A                  | Long             | EC               | CORP              | NZ        |    319041 | NS      | $4167817.93   | 3.00%             |  |  |  | No            |                  2 | On Loan: No      |
| Wisetech Global Ltd.                        | Wisetech Global Ltd. NPV                            | CUSIP: Q98056106<br>LEI: 254900VE3AF301Q85K83 | Long             | EC               | CORP              | AU        |     51097 | NS      | $3054750.65   | 2.20%             |  |  |  | No            |                  2 | On Loan: No      |
| Pharmanutra Spa                             | Pharmanutra Spa NPV                                 | CUSIP: T7S298129<br>LEI: 815600F8217BC7733697 | Long             | EC               | CORP              | IT        |     30919 | NS      | $1441198.48   | 1.04%             |  |  |  | No            |                  2 | On Loan: No      |
| Inpost S.A                                  | Inpost S.A EUR0.01                                  | CUSIP: L5125Z108<br>LEI: 2221003M23QLERR89585 | Long             | EC               | CORP              | LU        |    132719 | NS      | $1633989.44   | 1.17%             |  |  |  | No            |                  2 | On Loan: No      |
| Trustpilot Group PLC                        | Trustpilot Group PLC ORD GBP0.01                    | CUSIP: G91044100<br>LEI: 2138002ILUNMGNPSGG46 | Long             | EC               | CORP              | GB        |    665834 | NS      | $2032043.18   | 1.46%             |  |  |  | Yes           |                  2 | On Loan: No      |
| W.A.G Payment Solutions Plc                 | W.A.G Payment Solutions Plc ORD GBP0.01             | CUSIP: G9417Z103<br>LEI: 213800HU63CWV5J8YK95 | Long             | EC               | CORP              | GB        |   3928623 | NS      | $5167365.80   | 3.71%             |  |  |  | No            |                  1 | On Loan: No      |
| Evotec SE                                   | Evotec SE NPV                                       | CUSIP: D1646D105<br>LEI: 529900F9KI6OYITO9B12 | Long             | EC               | CORP              | DE        |    242617 | NS      | $1776975.27   | 1.28%             |  |  |  | No            |                  2 | On Loan: No      |
| Invisio AB                                  | Invisio AB NPV                                      | CUSIP: W603RD108<br>LEI: 54930054EB7KX3MY2Q11 | Long             | EC               | CORP              | SE        |     79387 | NS      | $2664742.27   | 1.92%             |  |  |  | No            |                  2 | On Loan: No      |
| Rakus Co Ltd.                               | Rakus Co Ltd. NPV                                   | CUSIP: J6S879103<br>LEI: N/A                  | Long             | EC               | CORP              | JP        |    212200 | NS      | $1950380.13   | 1.40%             |  |  |  | No            |                  2 | On Loan: No      |
| Trifork Group AG                            | Trifork Group AG CHF0.10                            | CUSIP: H8847G130<br>LEI: 8945004BYZKXPESTBL36 | Long             | EC               | CORP              | CH        |     32952 | NS      | $422910.04    | 0.30%             |  |  |  | Yes           |                  1 | On Loan: No      |
| E Ink Holdings Inc.                         | E Ink Holdings Inc. TWD10                           | CUSIP: Y2266Z100<br>LEI: 529900UOR451FJJYL571 | Long             | EC               | CORP              | TW        |    585300 | NS      | $4650134.21   | 3.34%             |  |  |  | No            |                  2 | On Loan: No      |
| EO Technics Co                              | EO Technics Co KRW500                               | CUSIP: Y2297V102<br>LEI: N/A                  | Long             | EC               | CORP              | KR        |     24476 | NS      | $4077937.11   | 2.93%             |  |  |  | No            |                  2 | On Loan: No      |
| Hyundai Ezwel Co Limited                    | Hyundai Ezwel Co Limited KRW500                     | CUSIP: Y2R9HR103<br>LEI: N/A                  | Long             | EC               | CORP              | KR        |    407983 | NS      | $1709832.57   | 1.23%             |  |  |  | No            |                  2 | On Loan: No      |
| PolyNovo Ltd.                               | PolyNovo Ltd. NPV                                   | CUSIP: Q7704D107<br>LEI: 529900G0IT1EQMPW7H74 | Long             | EC               | CORP              | AU        |   2253433 | NS      | $2121992.94   | 1.53%             |  |  |  | No            |                  2 | On Loan: No      |
| Bonesupport Holding Ab                      | Bonesupport Holding Ab NPV                          | CUSIP: W2R933137<br>LEI: 549300COLY053IGTLD63 | Long             | EC               | CORP              | SE        |     11414 | NS      | $354243.42    | 0.25%             |  |  |  | Yes           |                  2 | On Loan: No      |
| Medley Inc.                                 | Medley Inc. NPV                                     | CUSIP: J41576109<br>LEI: 353800VX74BO9P8XHJ87 | Long             | EC               | CORP              | JP        |     73700 | NS      | $1213062.73   | 0.87%             |  |  |  | No            |                  2 | On Loan: No      |
| Solum Co. Ltd.                              | Solum Co. Ltd. KRW500                               | CUSIP: Y806G2101<br>LEI: N/A                  | Long             | EC               | CORP              | KR        |    138352 | NS      | $1721336.50   | 1.24%             |  |  |  | No            |                  2 | On Loan: No      |
| Swedencare Ab                               | Swedencare Ab NPV                                   | CUSIP: W942AH117<br>LEI: 549300FZT7YIF6SWX789 | Long             | EC               | CORP              | SE        |    651755 | NS      | $2350344.39   | 1.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Alpha Purchase Co Ltd.                      | Alpha Purchase Co Ltd. NPV                          | CUSIP: J0128X104<br>LEI: N/A                  | Long             | EC               | CORP              | JP        |    245900 | NS      | $5653061.93   | 4.06%             |  |  |  | No            |                  2 | On Loan: No      |
| AJ Bell PLC                                 | AJ Bell PLC ORD GBP0.000125                         | CUSIP: G01457103<br>LEI: 213800VNKA7DPWXWJJ36 | Long             | EC               | CORP              | GB        |    148611 | NS      | $1091230.88   | 0.78%             |  |  |  | No            |                  2 | On Loan: No      |
| Cbrain A/S                                  | Cbrain A/S DKK0.25                                  | CUSIP: K17623107<br>LEI: 529900E1K2W6SBYF8W02 | Long             | EC               | CORP              | DK        |     96396 | NS      | $2747218.91   | 1.97%             |  |  |  | No            |                  1 | On Loan: No      |
| Montana Aerospace AG                        | Montana Aerospace AG CHF1.00                        | CUSIP: H55555108<br>LEI: 506700YRG9330Q97U450 | Long             | EC               | CORP              | CH        |    111638 | NS      | $3909850.79   | 2.81%             |  |  |  | Yes           |                  2 | On Loan: No      |
| Nordhealth AS                               | Nordhealth AS SER'A'NOK1                            | CUSIP: R5S365106<br>LEI: 549300DMI437CP0K2C23 | Long             | EC               | CORP              | NO        |    296691 | NS      | $1088114.25   | 0.78%             |  |  |  | Yes           |                  1 | On Loan: No      |
| Wise PLC                                    | Wise PLC CLS A ORD GBP0.01                          | CUSIP: G97229101<br>LEI: 213800LD9XCHIC1C4V71 | Long             | EC               | CORP              | GB        |    362855 | NS      | $5058312.46   | 3.64%             |  |  |  | No            |                  2 | On Loan: No      |
| Redcare Pharmacy N.V                        | Redcare Pharmacy N.V EUR0.02                        | CUSIP: N7975Z103<br>LEI: 529900JK6UXHY1YKZ082 | Long             | EC               | CORP              | NL        |     13994 | NS      | $1215218.77   | 0.87%             |  |  |  | Yes           |                  2 | On Loan: No      |
| Mips AB                                     | Mips AB NPV                                         | CUSIP: W5648N127<br>LEI: 549300LZSA4S0L54VQ25 | Long             | EC               | CORP              | SE        |     23362 | NS      | $849501.08    | 0.61%             |  |  |  | No            |                  2 | On Loan: No      |
| Hacksaw AB                                  | Hacksaw AB NPV                                      | CUSIP: W42390109<br>LEI: 636700SMLZDCBPNPMJ36 | Long             | EC               | CORP              | SE        |    328775 | NS      | $2390798.83   | 1.72%             |  |  |  | Yes           |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-10-28

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

**Signature:** Tracy L. Dotolo

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

**Title:** Treasurer