# EDGAR Filing Document

**Accession Number:** 0001579982
**File Stem:** 0001213900-26-032187
**Filing Date:** 2026-3
**Character Count:** 6398
**Document Hash:** ab52480cb6175724e48914a604f4f727
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-032187.hdr.sgml**: 20260320

**ACCESSION NUMBER**: 0001213900-26-032187

**CONFORMED SUBMISSION TYPE**: 485BXT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260320

**DATE AS OF CHANGE**: 20260320

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ARK ETF Trust
- **CENTRAL INDEX KEY:** 0001579982

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0831

**FILING VALUES:**
- **FORM TYPE:** 485BXT
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-22883
- **FILM NUMBER:** 26777183

**BUSINESS ADDRESS:**
- **STREET 1:** 155 WEST 19TH STREET, FIFTH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10011
- **BUSINESS PHONE:** 212.426.7040

**MAIL ADDRESS:**
- **STREET 1:** 155 WEST 19TH STREET, FIFTH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10011

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Ark ETF Trust
- **DATE OF NAME CHANGE:** 20130624
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ARK ETF Trust
- **CENTRAL INDEX KEY:** 0001579982

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0831

**FILING VALUES:**
- **FORM TYPE:** 485BXT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-191019
- **FILM NUMBER:** 26777182

**BUSINESS ADDRESS:**
- **STREET 1:** 155 WEST 19TH STREET, FIFTH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10011
- **BUSINESS PHONE:** 212.426.7040

**MAIL ADDRESS:**
- **STREET 1:** 155 WEST 19TH STREET, FIFTH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10011

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Ark ETF Trust
- **DATE OF NAME CHANGE:** 20130624

## Series and Classes Contracts Data

### ARK DIET Q1 Bitcoin 1 ETF (Series ID: S000099893)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000269678 | ARK DIET Q1 Bitcoin 1 ETF |  |

### ARK DIET Q2 Bitcoin 1 ETF (Series ID: S000099895)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000269680 | ARK DIET Q2 Bitcoin 1 ETF |  |

### ARK DIET Q3 Bitcoin 1 ETF (Series ID: S000099897)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000269682 | ARK DIET Q3 Bitcoin 1 ETF |  |

### ARK DIET Q4 Bitcoin 1 ETF (Series ID: S000099899)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000269684 | ARK DIET Q4 Bitcoin 1 ETF |  |

**As filed with the Securities and Exchange Commission on March 20, 2026**

**No. 333-191019**

**No. 811-22883**

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

**FORM N-1A**

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| | | |
|:---|:---|:---|
|  | **REGISTRATION STATEMENT UNDER<br> THE SECURITIES ACT OF 1933** | ☒ |
|  | **Pre-Effective Amendment No.** | ☐ |
|  | **Post-Effective Amendment No. 57** | ☒ |
| **and/or** | **and/or** | **and/or** |

---

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| | |
|:---|:---|
| **REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940** | ☒ |
| **Amendment No. 62** | ☒ |
| (Check appropriate box or boxes) |  |

---

**ARK ETF Trust**

(Exact Name of Registrant as Specified in Charter)

**c/o ARK Investment Management LLC<br> 200 Central Avenue, Suite 220<br> St. Petersburg, FL 33701**<br> (Address of Principal Executive Office)

Registrant's Telephone Number, including Area Code: (727) 810-8160

---

| | | |
|:---|:---|:---|
|  | *With a copy to* | *With a copy to:* |
| **Corporation Service Company** | **Kellen Carter, Esq.** | **Philip T. Hinkle, Esq.** |
| **251 Little Falls Drive** | **Chief Compliance Officer** | **Dechert LLP** |
| **Wilmington, DE 19808** | **ARK Investment Management LLC** | **1900 K Street, NW** |
| (Name and Address of Agent for | **200 Central Avenue, Suite 220** | **Washington, DC 20006** |
| Service) | **St. Petersburg, FL 33701** |  |

---

**IT IS PROPOSED THAT THIS FILING WILL BECOME EFFECTIVE (CHECK APPROPRIATE BOX)**

☐ Immediately upon filing pursuant to paragraph (b)

☒ On April 22, 2026 pursuant to paragraph (b)

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

☐ On _______________ pursuant to paragraph (a)(1)

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

☐ On _______________ 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**

The sole purpose of this filing is to delay the effectiveness of the Registrant's Post-Effective Amendment No. 39 to its Registration Statement until April 22, 2026. [Parts A, B and C of the Registrant's Post-Effective Amendment No. 39 under the Securities Act of 1933 and Amendment No. 44 under the Investment Company Act of 1940, filed on October 14, 2025, are incorporated by reference herein.](https://www.sec.gov/Archives/edgar/data/1579982/000121390025098860/ea0261086-01_485apos.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 requirements 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 City of St. Petersburg, and State of Florida, on the 20th day of March, 2026.

---

| | |
|:---|:---|
| ARK ETF Trust | ARK ETF Trust |
| By: | /s/ Kellen Carter |
| Name: | Kellen Carter |
| Title: | Chief Compliance Officer |

---

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

---

| | |
|:---|:---|
| **Signature** | **Title** |
| /s/ Scott R. Chichester\* | Trustee |
| Scott R. Chichester |  |
| /s/ Darlene T. DeRemer\* | Trustee |
| Darlene T. DeRemer |  |
| /s/ Robert G. Zack\* | Trustee |
| Robert G. Zack |  |
| /s/ Catherine D. Wood\* | Trustee, Chief Executive Officer and Chief Investment Officer |
| Catherine D. Wood |  |
| /s/ Kellen Carter | Chief Compliance Officer |
| Kellen Carter |  |
| /s/ William C. Cox | Treasurer and Chief Financial Officer |
| William C. Cox |  |

---

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| | |
|:---|:---|
| \* By: | /s/ Kellen Carter |
|  | Kellen Carter |
|  | Attorney-in-Fact |

---