# EDGAR Filing Document

**Accession Number:** 0001592900
**File Stem:** 0001829126-23-002475
**Filing Date:** 2023-3
**Character Count:** 2400
**Document Hash:** abc14e00cc0811708498473548f2f9e6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001829126-23-002475.hdr.sgml**: 20230331

**ACCESSION NUMBER**: 0001829126-23-002475

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230331

**DATE AS OF CHANGE**: 20230331

**EFFECTIVENESS DATE**: 20230331

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** EA Series Trust
- **CENTRAL INDEX KEY:** 0001592900
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-195493
- **FILM NUMBER:** 23785916

**BUSINESS ADDRESS:**
- **STREET 1:** 19 E EAGLE ROAD
- **CITY:** HAVERTOWN
- **STATE:** PA
- **ZIP:** 19083
- **BUSINESS PHONE:** 1.215.882.9983

**MAIL ADDRESS:**
- **STREET 1:** 19 E EAGLE ROAD
- **CITY:** HAVERTOWN
- **STATE:** PA
- **ZIP:** 19083

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Alpha Architect ETF Trust
- **DATE OF NAME CHANGE:** 20140428

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Empowered Funds ETF Trust
- **DATE OF NAME CHANGE:** 20131125

## Series and Classes Contracts Data

### Alpha Architect Tail Risk ETF (Series ID: S000077908)

---

|  |  |  |
|:---|:---|:---|
| Class Name                    | Ticker Symbol | Class ID   |
| Alpha Architect Tail Risk ETF | CAOS          | C000238588 |

---

## Series and Classes Contracts Data

### Alpha Architect Tail Risk ETF (Series ID: S000077908)

| Class ID   | Class Name                    | Ticker Symbol   |
|:---|:---|:---|
| C000238588 | Alpha Architect Tail Risk ETF | CAOS            |

Filed Pursuant to Rule 497(e)

File Nos. 333-195493; 811-22961

**Alpha Architect Tail Risk ETF**

Ticker Symbol: CAOS

Listed on *CBOE BZX, Inc.*

(the "Fund")

**Supplement dated March 31, 2023, to the Fund's Summary Prospectus, dated March 3, 2023,** 

**and the Statutory Prospectus and Statement of Additional Information ("SAI"), each dated** 

**November 21, 2022 (as supplemented on December 20, 2022 and February 1, 2023)**

***This supplement should be read in conjunction with your Summary Prospectus, Statutory Prospectus and SAI and should be retained for future reference. This supplement is in addition to any existing Fund Supplement(s).***

Effective immediately, the Fund's fiscal year end is changed from February 28 to September 30.

**PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE**