# EDGAR Filing Document

**Accession Number:** 0001101680
**File Stem:** 0001101680-23-000006
**Filing Date:** 2023-3
**Character Count:** 4915
**Document Hash:** fe819aeb638702d55bea87444d125f96
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001101680-23-000006.hdr.sgml**: 20230302

**ACCESSION NUMBER**: 0001101680-23-000006

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230220

**FILED AS OF DATE**: 20230302

**DATE AS OF CHANGE**: 20230302

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Carter Thomas Arthur
- **CENTRAL INDEX KEY:** 0001967793

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-32743
- **FILM NUMBER:** 23699120

**MAIL ADDRESS:**
- **STREET 1:** 5700 TENNYSON PARKWAY
- **STREET 2:** SUITE 400
- **CITY:** PLANO
- **STATE:** TX
- **ZIP:** 75024
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** DZS INC.
- **CENTRAL INDEX KEY:** 0001101680
- **STANDARD INDUSTRIAL CLASSIFICATION:** TELEPHONE & TELEGRAPH APPARATUS [3661]
- **IRS NUMBER:** 223509099
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 5700 TENNYSON PARKWAY
- **STREET 2:** SUITE 400
- **CITY:** PLANO
- **STATE:** TX
- **ZIP:** 75024
- **BUSINESS PHONE:** 4693271531

**MAIL ADDRESS:**
- **STREET 1:** 5700 TENNYSON PARKWAY
- **STREET 2:** SUITE 400
- **CITY:** PLANO
- **STATE:** TX
- **ZIP:** 75024

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DASAN ZHONE SOLUTIONS INC
- **DATE OF NAME CHANGE:** 20160912

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ZHONE TECHNOLOGIES INC
- **DATE OF NAME CHANGE:** 20031114

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** TELLIUM INC
- **DATE OF NAME CHANGE:** 20000911

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Carter Thomas Arthur<br><sub>(Last) (First) (Middle)</sub><br>C/O DZS INC.<br>5700 TENNYSON PARKWAY, 4TH FLOOR<br><sub>(Street)</sub><br>PLANO, TX 75024<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>DZS INC. [ DZSI ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2023-02-20 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_Chief Customer Officer, AEMEA_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Restricted Stock Units | <sup>(1)</sup> | <sup>(1)</sup> | Common Stock | 100000.0 | <sup>(1)</sup> | D |  |

---

### Footnotes:

(1) These restricted stock units were granted pursuant to the issuer's 2017 Incentive Award Plan and will vest in three equal installments on January 16, 2024, 2025, and 2026, subject to the reporting person's continued employment with the issuer on each vesting date.  Each restricted stock unit represents the right to receive one share of the issuer's common stock upon vesting.

**Signature:** /s/Laura Larsen-Misunas as Power of Attorney  
**Date:** 2023-03-02

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**