# EDGAR Filing Document

**Accession Number:** 0001796383
**File Stem:** 0001398344-25-019776
**Filing Date:** 2025-10
**Character Count:** 3648
**Document Hash:** a897f5f64961b949739354ead55777f6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-25-019776.hdr.sgml**: 20251024

**ACCESSION NUMBER**: 0001398344-25-019776

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 4

**FILED AS OF DATE**: 20251024

**DATE AS OF CHANGE**: 20251024

**EFFECTIVENESS DATE**: 20251024

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Siren ETF Trust
- **CENTRAL INDEX KEY:** 0001796383

**ORGANIZATION NAME:**
- **EIN:** 876782265
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-235544
- **FILM NUMBER:** 251416437

**BUSINESS ADDRESS:**
- **STREET 1:** 2600 PHILMONT AVENUE
- **STREET 2:** SUITE 215
- **CITY:** HUNTINGDON VALLEY
- **STATE:** PA
- **ZIP:** 19006
- **BUSINESS PHONE:** (215) 914-1970

**MAIL ADDRESS:**
- **STREET 1:** 2600 PHILMONT AVENUE
- **STREET 2:** SUITE 215
- **CITY:** HUNTINGDON VALLEY
- **STATE:** PA
- **ZIP:** 19006

## Series and Classes Contracts Data

### Siren Nasdaq NexGen Economy ETF (Series ID: S000069719)

---

|  |  |  |
|:---|:---|:---|
| Class Name                      | Ticker Symbol | Class ID   |
| Siren Nasdaq NexGen Economy ETF | BLCN          | C000222396 |

---

## Series and Classes Contracts Data

### Siren Nasdaq NexGen Economy ETF (Series ID: S000069719)

| Class ID   | Class Name                      | Ticker Symbol   |
|:---|:---|:---|
| C000222396 | Siren Nasdaq NexGen Economy ETF | BLCN            |

**SIREN ETF TRUST**

**(the "Trust")**

**Siren Nasdaq NexGen Economy ETF**

**(the "Fund")**

**Supplement dated October 24, 2025 to the Fund's Summary Prospectus, Prospectus**

**and Statement of Additional Information ("SAI"), each dated July 29, 2025, as supplemented**

**This Supplement provides new and additional information beyond that contained in the Summary Prospectus, Prospectus and SAI, and should be read in conjunction with the Summary Prospectus, Prospectus and SAI.**

Based on the recommendation of SRN Advisors, LLC, the Fund's investment adviser, the Board of Trustees of the Trust has approved changes to the Fund discussed herein so that the Fund can operate as an actively-managed fund rather than as a passively-managed fund that seeks to track the performance, before fees and expenses, of an underlying index.

**Important Notice Regarding Change in Investment Policy**

The Fund currently has a policy to invest, under normal circumstances, at least 80% of the Fund's net assets, including any borrowings for investment purposes, in component securities of the Nasdaq Blockchain Economy Index (the "80% Policy"). On or around December 23, 2025, or on such later date determined by the Fund (the "Effective Date"), the Fund's 80% Policy will be rescinded.

**Other Changes to the Fund**

Effective as of the Effective Date, the Fund's name and investment objective will change as follows:

---

| | | |
|:---|:---|:---|
| | **Current** | **New** |
| **Name** | Siren Nasdaq NexGen Economy ETF | Siren NexGen Economy ETF |
| **Investment Objective** | The Fund seeks long-term growth by tracking the investment returns, before fees and expenses, of the Nasdaq Blockchain Economy Index. | The Fund seeks long-term capital appreciation. |

---

In connection with the foregoing changes, the Fund also will make certain changes to its principal investment strategies, principal risks and benchmark indices, effective as of the Effective Date. More information about these changes will be available in the Fund's Summary Prospectus, Prospectus and SAI to be dated as of the Effective Date.

**PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE**