# EDGAR Filing Document

**Accession Number:** 0002043390
**File Stem:** 0001999371-26-010401
**Filing Date:** 2026-5
**Character Count:** 6392
**Document Hash:** 9f3e1b5c4c92e5d09dc3c7fe10da20b7
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001999371-26-010401.hdr.sgml**: 20260511

**ACCESSION NUMBER**: 0001999371-26-010401

**CONFORMED SUBMISSION TYPE**: 485BXT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260511

**DATE AS OF CHANGE**: 20260511

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Tidal Trust IV
- **CENTRAL INDEX KEY:** 0002043390

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 485BXT
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-24061
- **FILM NUMBER:** 26961324

**BUSINESS ADDRESS:**
- **STREET 1:** 234 WEST FLORIDA STREET, SUITE 700
- **CITY:** MILWAUKEE
- **STATE:** WI
- **BUSINESS PHONE:** 855-832-2534

**MAIL ADDRESS:**
- **STREET 1:** 234 WEST FLORIDA STREET, SUITE 700
- **CITY:** MILWAUKEE
- **STATE:** WI
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Tidal Trust IV
- **CENTRAL INDEX KEY:** 0002043390

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 485BXT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-285633
- **FILM NUMBER:** 26961323

**BUSINESS ADDRESS:**
- **STREET 1:** 234 WEST FLORIDA STREET, SUITE 700
- **CITY:** MILWAUKEE
- **STATE:** WI
- **BUSINESS PHONE:** 855-832-2534

**MAIL ADDRESS:**
- **STREET 1:** 234 WEST FLORIDA STREET, SUITE 700
- **CITY:** MILWAUKEE
- **STATE:** WI

## Series and Classes Contracts Data

### Portfolio Building Block USA Banks ETF (Series ID: S000104542)

| Class ID   | Class Name                             | Ticker Symbol   |
|:---|:---|:---|
| C000275162 | Portfolio Building Block USA Banks ETF |  |

### Portfolio Building Block World Consumer Staples ETF (Series ID: S000104543)

| Class ID   | Class Name                                          | Ticker Symbol   |
|:---|:---|:---|
| C000275163 | Portfolio Building Block World Consumer Staples ETF |  |

### Portfolio Building Block World Ex US Industrials ETF (Series ID: S000104544)

| Class ID   | Class Name                                           | Ticker Symbol   |
|:---|:---|:---|
| C000275164 | Portfolio Building Block World Ex US Industrials ETF |  |

AS FILED WITH THE U.S. SECURITIES AND EXCHANGE COMMISSION ON MAY 11, 2026

1933 Act Registration File No.: 333-285633

1940 Act File No.: 811-24061

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM N-1A**

---

| | |
|:---|:---|
| REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 | ☒ |
| Pre-Effective Amendment No. | ☐ |
| Post-Effective Amendment No. 16 | ☒ |
| and/or | and/or |
| REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 | ☒ |
| Amendment No. 18 | ☒ |

---

**<u>TIDAL TRUST IV</u>**

(Exact Name of Registrant as Specified in Charter)

c/o Tidal ETF Services LLC

234 West Florida Street, Suite 700

Milwaukee, Wisconsin 53204

(Address of Principal Executive Offices, Zip Code)

(Registrant's Telephone Number, including Area Code) **(855) 843-2534**

The Corporation Trust Company

1209 Orange Street

Corporation Trust Center

Wilmington, DE 19801

(Name and Address of Agent for Service)

Copies to:

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| | |
|:---|:---|
| Eric W. Falkeis<br> Tidal ETF Services LLC<br> 234 West Florida Street, Suite 700<br> Milwaukee, Wisconsin 53204 | Rachael L. Schwartz<br> Sullivan & Worcester LLP<br> 1251 Avenue of Americas, 19<sup>th</sup> Floor<br> New York, NY 10020 |

---

Approximate date of proposed public offering: As soon as practicable after the effective date of this registration statement.

It is proposed that this filing will become effective (check appropriate box):

☐ immediately upon filing pursuant to paragraph (b)

☒ on May 19, 2026, 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.

**EXPLANATORY NOTE**

Designation of New Effective Date for Previously Filed Amendment

[Post-Effective Amendment No. 11](https://www.sec.gov/Archives/edgar/data/2043390/000199937126004413/pbb_485apos-022626.htm) (the "Amendment") was filed pursuant to Rule 485(a)(2) under the Securities Act of 1933 on February 26, 2026, and pursuant to Rule 485(a)(2) would have become effective on May 12, 2026.

This Post-Effective Amendment No. 16 is being filed pursuant to Rule 485(b)(1)(iii) for the sole purpose of designating May 19, 2026, as the new date upon which the Amendment shall become effective.

This Post-Effective Amendment No. 16 incorporates by reference the information contained in Parts A, B, and C of the Amendment.

**SIGNATURES**

Pursuant to the requirements of the Securities Act of 1933, as amended, (the "Securities Act") and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this Post-Effective Amendment No. 16 to its Registration Statement on Form N-1A under Rule 485(b) under the Securities Act and has duly caused this Post-Effective Amendment No. 16 to its Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Milwaukee, State of Wisconsin, on May 11, 2026.

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| | |
|:---|:---|
| **Tidal Trust IV** | **Tidal Trust IV** |
| By: | /s/ Eric. W. Falkeis |
|  | Eric W. Falkeis |
|  | President |

---

PresidentPursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed below by the following persons in the capacities indicated on May 11, 2026.

---

| | |
|:---|:---|
| **Signature** | **Title** |
| /s/ Eric W. Falkeis | President, Principal Executive Officer, and Trustee |
| Eric W. Falkeis |  |
| /s/ Luis Berruga\* | Trustee |
| Luis Berruga |  |
| /s/ Alisa Maute\* | Trustee |
| Alise Maute |  |
| /s/ Ashi Parikh\* | Trustee |
| Ashi Parikh |  |
| /s/ Aaron Perkovich | Treasurer (principal financial officer and principal accounting officer) |
| Aaron Perkovich |  |

---

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| | |
|:---|:---|
| \*By: | /s/ Eric W. Falkeis |
|  | Eric W. Falkeis, Attorney in Fact |
|  | By Power of Attorney |

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