# EDGAR Filing Document

**Accession Number:** 0001484018
**File Stem:** 0001484018-25-000076
**Filing Date:** 2025-8
**Character Count:** 4123
**Document Hash:** b84bc279a43dda0c5a6d7e4da8fda2ce
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001484018-25-000076.hdr.sgml**: 20250801

**ACCESSION NUMBER**: 0001484018-25-000076

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250801

**DATE AS OF CHANGE**: 20250801

**EFFECTIVENESS DATE**: 20250801

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Spinnaker ETF Series
- **CENTRAL INDEX KEY:** 0001484018

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

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-215942
- **FILM NUMBER:** 251175095

**BUSINESS ADDRESS:**
- **STREET 1:** 116 SOUTH FRANKLIN STREET
- **STREET 2:** POST OFFICE BOX 69
- **CITY:** ROCKY MOUNT
- **STATE:** NC
- **ZIP:** 27802-0069
- **BUSINESS PHONE:** 252-972-9922

**MAIL ADDRESS:**
- **STREET 1:** 116 SOUTH FRANKLIN STREET
- **STREET 2:** POST OFFICE BOX 69
- **CITY:** ROCKY MOUNT
- **STATE:** NC
- **ZIP:** 27802-0069

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Spinnaker ETF Trust
- **DATE OF NAME CHANGE:** 20100212

## Series and Classes Contracts Data

### North Shore Equity Rotation ETF (Series ID: S000084308)

---

|  |  |  |
|:---|:---|:---|
| Class Name                      | Ticker Symbol | Class ID   |
| North Shore Equity Rotation ETF | KOOL          | C000248645 |

---

## Series and Classes Contracts Data

### North Shore Equity Rotation ETF (Series ID: S000084308)

| Class ID   | Class Name                      | Ticker Symbol   |
|:---|:---|:---|
| C000248645 | North Shore Equity Rotation ETF | KOOL            |

#### NORTH SHORE EQUITY ROTATION ETF
**(the "Fund")**

<br> ------

****

<br> #### Supplement dated August 1, 2025

#### to the Summary Prospectus dated August 1, 2025

#### The information in this Supplement updates information in, and should be read in conjunction with, the Summary Prospectus for the Fund.

#### Until September 30, 2025, the section "Investment Objective" is replaced in its entirety with the following:
The **North Shore Equity Rotation ETF** (the "Fund") seeks to outperform the S&P 500 Index by investing in various sectors of the equity market.

For further information, please contact the Fund toll-free at 1-800-773-3863. You may obtain additional copies of the Prospectus, Summary Prospectus, and Statement of Additional Information, free of charge, by writing to the Fund at Post Office Box 4365, Rocky Mount, North Carolina 27803 or calling the Fund toll-free at the number above.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

<br> \* \* \* \* \*

#### Investors Should Retain This Supplement for Future Reference

------

#### NORTH SHORE EQUITY ROTATION ETF
**(the "Fund")**

<br> ------

****

<br> #### Supplement dated August 1, 2025

#### to the Prospectus dated August 1, 2025

#### The information in this Supplement updates information in, and should be read in conjunction with, the Prospectus for the Fund.

#### Until September 30, 2025, the section "Investment Objective" in the Summary section is replaced in its entirety with the following:
The **North Shore Equity Rotation ETF** (the "Fund") seeks to outperform the S&P 500 Index by investing in various sectors of the equity market.

***Until September 30, 2025, the first sentence in the section "Additional Information About the Fund's Investment Objectives, Principal Investment Strategies , and Risks – Investment Objective" is replaced in its entirety with the following:***

The Fund seeks to outperform the S&P 500 Index by investing in various sectors of the equity market.

For further information, please contact the Fund toll-free at 1-800-773-3863. You may obtain additional copies of the Prospectus, Summary Prospectus, and Statement of Additional Information, free of charge, by writing to the Fund at Post Office Box 4365, Rocky Mount, North Carolina 27803 or calling the Fund toll-free at the number above.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

<br> \* \* \* \* \*

#### Investors Should Retain This Supplement for Future Reference