# EDGAR Filing Document

**Accession Number:** 0000785786
**File Stem:** 0001140361-25-046291
**Filing Date:** 2025-12
**Character Count:** 2176
**Document Hash:** 96017a7b133ec0bfebafbcae1b4edadf
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-25-046291.hdr.sgml**: 20251222

**ACCESSION NUMBER**: 0001140361-25-046291

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20251222

**DATE AS OF CHANGE**: 20251222

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PLEXUS CORP
- **CENTRAL INDEX KEY:** 0000785786
- **STANDARD INDUSTRIAL CLASSIFICATION:** PRINTED CIRCUIT BOARDS [3672]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 391344447
- **STATE OF INCORPORATION:** WI
- **FISCAL YEAR END:** 0927

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-14423
- **FILM NUMBER:** 251589582

**BUSINESS ADDRESS:**
- **STREET 1:** PLEXUS CORP
- **STREET 2:** ONE PLEXUS WAY
- **CITY:** NEENAH
- **STATE:** WI
- **ZIP:** 54956
- **BUSINESS PHONE:** 9209696000

**MAIL ADDRESS:**
- **STREET 1:** PLEXUS CORP
- **STREET 2:** ONE PLEXUS WAY
- **CITY:** NEENAH
- **STATE:** WI
- **ZIP:** 54956

### UNITED STATES<br>

### SECURITIES AND EXCHANGE COMMISSION<br>

#### Washington, D.C. 20549

### SCHEDULE 14A <br>

#### Proxy Statement Pursuant to Section 14(a) of the <br>

#### Securities Exchange Act of 1934 <br>

#### (Amendment No.)
Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐<br> Preliminary Proxy Statement

☐ **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))** 

☐ Definitive Proxy Statement

&nbsp;&nbsp;&nbsp;&nbsp;☒ Definitive Additional Materials

☐<br> Soliciting Material Pursuant to §240.14a-12

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| |
|:---|
| **PLEXUS CORP.**  |
| (Name of Registrant as Specified In Its Charter) |
| (Name of Person(s) Filing Proxy Statement, if other than the Registrant) |

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| | |
|:---|:---|
| Payment of Filing Fee (Check all boxes that apply):  | Payment of Filing Fee (Check all boxes that apply):  |
| ☒ | No fee required.  |
| ☐ | Fee paid previously with preliminary materials.  |
| ☐ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11. |

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