# EDGAR Filing Document

**Accession Number:** 0001491978
**File Stem:** 0001193125-23-072338
**Filing Date:** 2023-3
**Character Count:** 2233
**Document Hash:** c76507ba17f04ad92870a2f8a97f10d3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-072338.hdr.sgml**: 20230316

**ACCESSION NUMBER**: 0001193125-23-072338

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230316

**DATE AS OF CHANGE**: 20230316

**EFFECTIVENESS DATE**: 20230316

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FLEXSHARES TRUST
- **CENTRAL INDEX KEY:** 0001491978
- **IRS NUMBER:** 272560399
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-173967
- **FILM NUMBER:** 23738158

**BUSINESS ADDRESS:**
- **STREET 1:** 50 SOUTH LASALLE STREET
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60603
- **BUSINESS PHONE:** (855) 353-9383

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

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FlexShares Trust
- **DATE OF NAME CHANGE:** 20110414

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NT ETF Trust
- **DATE OF NAME CHANGE:** 20100513

## Series and Classes Contracts Data

### FlexShares Ultra-Short Income Fund (Series ID: S000035596)

---

|  |  |  |
|:---|:---|:---|
| Class Name                         | Ticker Symbol | Class ID   |
| FlexShares Ultra-Short Income Fund | RAVI          | C000109007 |

---

## Series and Classes Contracts Data

### FlexShares Ultra-Short Income Fund (Series ID: S000035596)

| Class ID   | Class Name                         | Ticker Symbol   |
|:---|:---|:---|
| C000109007 | FlexShares Ultra-Short Income Fund | RAVI            |

**FLEXSHARES<sup>®</sup> TRUST** 

**FlexShares<sup>®</sup> Ultra-Short Income Fund** 

**SUPPLEMENT DATED MARCH 16, 2023 TO THE PROSPECTUS AND STATEMENT OF ADDITIONAL INFORMATION ("SAI"), EACH DATED MARCH 1, 2023, AS SUPPLEMENTED** 

Effective March 16, 2023, Patrick Quinn is no longer a portfolio manager of the FlexShares<sup>®</sup> Ultra-Short Income Fund (the "Fund"). Bilal Memon and Morten Olsen will remain as portfolio managers of the Fund. All references to Patrick Quinn in the Fund's Prospectus and SAI are hereby deleted.

*Please retain this Supplement with your Prospectus and SAI for future reference.*