# EDGAR Filing Document

**Accession Number:** 0000928876
**File Stem:** 0001178913-26-002365
**Filing Date:** 2026-5
**Character Count:** 2982
**Document Hash:** 2aecf92740821466a468f173e8629d1f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001178913-26-002365.hdr.sgml**: 20260505

**ACCESSION NUMBER**: 0001178913-26-002365

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260505

**FILED AS OF DATE**: 20260505

**DATE AS OF CHANGE**: 20260505

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TOWER SEMICONDUCTOR LTD
- **CENTRAL INDEX KEY:** 0000928876
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 000000000
- **STATE OF INCORPORATION:** L3
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-24790
- **FILM NUMBER:** 26940172

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** RAMAT GAVRIEL INDUSTRIAL PARK
- **STREET 2:** PO BOX 619
- **CITY:** MIGDAL HAEMEK
- **PROVINCE COUNTRY:** L3
- **ZIP:** 2310502
- **BUSINESS PHONE:** 972522478856

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** RAMAT GAVRIEL INDUSTRIAL PARK
- **STREET 2:** PO BOX 619
- **CITY:** MIGDAL HAEMEK
- **PROVINCE COUNTRY:** L3
- **ZIP:** 2310502

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<br> ### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

### FORM 6-K

#### REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

#### OF THE SECURITIES EXCHANGE ACT OF 1934
For the month of May 2026 No.1

Commission File Number 0-24790

### TOWER SEMICONDUCTOR LTD.
(Translation of registrant's name into English)

#### Ramat Gavriel Industrial Park

#### P.O. Box 619, Migdal Haemek, Israel 2310502
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

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On May 5, 2026, Standard & Poor's Maalot (an Israeli rating company which is fully owned by S&P Global Ratings) completed its annual rating review of the Registrant, re-affirmed its corporate credit rating as "ilAA", and revised the rating outlook from Stable Outlook to Positive Outlook. S&P Maalot's official rating report in Hebrew has been submitted by S&P Maalot to the Israel Securities Authority and the Tel Aviv Stock Exchange and is available on the Tel Aviv Stock Exchange website. An unofficial English translation of the report prepared by S&P Maalot is available on the IR webpage (https://ir.towersemi.com/) on the Company's website.

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#### SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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| | | |
|:---|:---|:---|
|  | **TOWER SEMICONDUCTOR LTD.** | **TOWER SEMICONDUCTOR LTD.** |
| Date: May 5, 2026&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>| By:  | /s/ Nati Somekh |
|  |  | Name: Nati Somekh |
|  |  | Title: Corporate Secretary |

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