# EDGAR Filing Document

**Accession Number:** 0001875710
**File Stem:** 0001999371-25-008217
**Filing Date:** 2025-6
**Character Count:** 6065
**Document Hash:** 4342aab507aedb3493d49d6d44049a09
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001999371-25-008217.hdr.sgml**: 20250625

**ACCESSION NUMBER**: 0001999371-25-008217

**CONFORMED SUBMISSION TYPE**: 485BXT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250625

**DATE AS OF CHANGE**: 20250625

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Build Funds Trust
- **CENTRAL INDEX KEY:** 0001875710

**ORGANIZATION NAME:**
- **EIN:** 871780510
- **STATE OF INCORPORATION:** DC
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 485BXT
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-23732
- **FILM NUMBER:** 251071170

**BUSINESS ADDRESS:**
- **STREET 1:** 3608 W. TRUMAN BLVD.
- **STREET 2:** SUITE 200
- **CITY:** JEFFERSON CITY
- **STATE:** MO
- **ZIP:** 65109
- **BUSINESS PHONE:** 833-852-8453

**MAIL ADDRESS:**
- **STREET 1:** 3608 W. TRUMAN BLVD.
- **STREET 2:** SUITE 200
- **CITY:** JEFFERSON CITY
- **STATE:** MO
- **ZIP:** 65109
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Build Funds Trust
- **CENTRAL INDEX KEY:** 0001875710

**ORGANIZATION NAME:**
- **EIN:** 871780510
- **STATE OF INCORPORATION:** DC
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 485BXT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-259006
- **FILM NUMBER:** 251071169

**BUSINESS ADDRESS:**
- **STREET 1:** 3608 W. TRUMAN BLVD.
- **STREET 2:** SUITE 200
- **CITY:** JEFFERSON CITY
- **STATE:** MO
- **ZIP:** 65109
- **BUSINESS PHONE:** 833-852-8453

**MAIL ADDRESS:**
- **STREET 1:** 3608 W. TRUMAN BLVD.
- **STREET 2:** SUITE 200
- **CITY:** JEFFERSON CITY
- **STATE:** MO
- **ZIP:** 65109

## Series and Classes Contracts Data

### Build Bond Innovation ETF (Series ID: S000074231)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000231840 | Build Bond Innovation ETF | BFIX            |

**As filed with the Securities and Exchange Commission on June 25, 2025**

**Securities Act File No. 333-259006<br> Investment Company Act File No. 811-23732**

**UNITED STATES<br> SECURITIES AND EXCHANGE COMMISSION**<br> **Washington, D.C. 20549**

**FORM N-1A**

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**☒** **REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933** 

**☐** **Pre-Effective Amendment No.__**

**☒** **Post-Effective Amendment No. 6**

AND/OR

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**☒** **REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940** 

**☒** **Amendment No. 8** 

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**BUILD FUNDS TRUST**<br> (Exact Name of Registrant as Specified in its Charter)

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**3608 West Truman Blvd., Suite 200** <br> **Jefferson City, MO 65109**<br> (Address of Principal Executive Offices)

Registrant's Telephone Number, including Area Code: **833.852.8453** 

**The Corporation Trust Company<br> Corporation Trust Center<br> 1209 Orange Street<br> Wilmington, Delaware 19801**<br> (Name and address of agent for service)

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 ****

***Copy to*:**

**John L. Ruth** <br> **Build Asset Management, LLC** <br> **3608 West Truman Blvd., Suite 200** <br> **Jefferson City, MO 65109**

**Bibb L. Strench, Esq.<br> Thompson Hine LLP<br> 1919 M Street, N.W., Suite 700<br> Washington, D.C. 20036**

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**Approximate Date of Proposed Public Offering:** As soon as practicable after the effective date of the Registration Statement.

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It is proposed that this filing will become effective:

**☐** Immediately upon filing pursuant to paragraph (b)

**☒** On July 8, 2025 pursuant to paragraph (b)

**☐** 60 days after filing pursuant to paragraph (a)(1)

**☐** On (date) pursuant to paragraph (a)(1)

**☐** 75 days after filing pursuant to paragraph (a)(2)

**☐** On (date) pursuant to paragraph (a)(2) of Rule 485.

If appropriate, check the following box:

**☒** This post-effective amendment designates a new effective date for a previously filed post-effective amendment

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This filing is being made pursuant to Rule 485(b)(1)(iii) under the Securities Act of 1933, as amended (the "Securities Act"), to extend the effectiveness of the Build Funds Trust's (the "Trust") Post-Effective Amendment No. 4 to its Registration Statement, on behalf of the Build Bond Innovation ETF, until July 8, 2025. [Parts A, B and C of Post-Effective Amendment No. 4, filed on April 4, 2025 (Accession Number 0001999371-25-003846), are herein incorporated by reference.](https://www.sec.gov/Archives/edgar/data/1875710/000199937125003846/bfix-485apos_040425.htm)

**SIGNATURES**

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirement for effectiveness of this Registration Statement under rule 485(b) under the Securities Act and has duly caused this Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the in the city of Jefferson City, and State of Missouri, on the 25<sup>th</sup> day of June 2025.

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| | |
|:---|:---|
| **Build Funds Trust** | **Build Funds Trust** |
| By: | /s/ John L. Ruth |
| Name: | John L. Ruth |
| Title: | Trustee, Chairman, President, and Principal Executive Officer |

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Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed below by the following person in the capacities and on the date indicated.

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| | | |
|:---|:---|:---|
| **Signature** | **Title** | **Date** |
| /s/ John L. Ruth | Trustee, Chairman, President, and Principal Executive Officer | June 25, 2025 |
| John L. Ruth |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\* | Trustee | June 25, 2025 |
| Kristine Delano |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\* | Trustee | June 25, 2025 |
| David Longhurst |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\* | Treasurer and Principal Financial Officer | June 25, 2025 |
| Clem Sell |  |  |

---

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| | |
|:---|:---|
| \*By: | /s/ John L. Ruth |
|  | John L. Ruth |

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\* John L. Ruth, pursuant to a power of attorney filed herewith to this Registrant's Registration Statement.