# EDGAR Filing Document

**Accession Number:** 0001648800
**File Stem:** 0001628280-26-035743
**Filing Date:** 2026-5
**Character Count:** 7027
**Document Hash:** 3fada96a45e672ac4ed9239de9bd9184
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-035743.hdr.sgml**: 20260515

**ACCESSION NUMBER**: 0001628280-26-035743

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260515

**FILED AS OF DATE**: 20260515

**DATE AS OF CHANGE**: 20260515

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Komin Robert Patrick Jr.
- **CENTRAL INDEX KEY:** 0001648800

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43284
- **FILM NUMBER:** 26990282

**BUSINESS ADDRESS:**
- **BUSINESS PHONE:** (866) 205-2442

**MAIL ADDRESS:**
- **STREET 1:** C/O BIRD RIDES, INC.
- **STREET 2:** 392 NE 191ST STREET, #20388
- **CITY:** MIAMI
- **STATE:** FL
- **ZIP:** 33179
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Cerebras Systems Inc.
- **CENTRAL INDEX KEY:** 0002021728
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 1237 E. ARQUES AVE.
- **CITY:** SUNNYVALE
- **STATE:** CA
- **ZIP:** 94085
- **BUSINESS PHONE:** (650) 933-4890

**MAIL ADDRESS:**
- **STREET 1:** 1237 E. ARQUES AVE.
- **CITY:** SUNNYVALE
- **STATE:** CA
- **ZIP:** 94085

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Komin Robert Patrick Jr.<br><sub>(Last) (First) (Middle)</sub><br>C/O CEREBRAS SYSTEMS INC.<br>1237 E. ARQUES AVENUE<br><sub>(Street)</sub><br>SUNNYVALE, CA 94085<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-05-15 | **5. 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 Financial Officer_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Cerebras Systems Inc. [ CBRS ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **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

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Class A Common Stock | 2026-05-15 |  | J<sup>(1)</sup> |  | 854153 | D | <sup>(1)</sup> | 0 | D |  |
| Class A Common Stock | 2026-05-15 |  | J<sup>(1)</sup> |  | 175000 | D | <sup>(1)</sup> | 0 | I | By GRAT |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Class B Common Stock | <sup>(1)</sup> | 2026-05-15 |  | J<sup>(1)</sup> |  | 854153 |  | <sup>(1)</sup> | <sup>(1)</sup> | Class A Common Stock | 854153 | <sup>(1)</sup> | 854153 | D |  |
| Class B Common Stock | <sup>(1)</sup> | 2026-05-15 |  | J<sup>(1)</sup> |  | 175000 |  | <sup>(1)</sup> | <sup>(1)</sup> | Class A Common Stock | 175000 | <sup>(1)</sup> | 175000 | I | By GRAT |
| Stock Option | $5.48 | 2026-05-15 |  | J<sup>(1)</sup> |  |  | 18248 | <sup>(2)</sup> | 2034-03-12 | Class A Common Stock | 18248 | <sup>(1)</sup> | 0 | D |  |
| Stock Option | $5.48 | 2026-05-15 |  | J<sup>(1)</sup> |  | 18248 |  | <sup>(2)</sup> | 2034-03-12 | Class B Common Stock | 18248 | <sup>(1)</sup> | 18248 | D |  |

---

### Footnotes:

(1) Immediately prior to the completion of the Issuer's initial public offering, each share of Class A common stock beneficially owned by the Reporting Person, including shares of Class A common stock underlying restricted stock unit ("RSU") and stock options awards, were reclassified into one share of Class B common stock in an exempt transaction pursuant to Rule 16b-7. Each share of Class B common stock is convertible at any time at the option of the holder into one share of Class A common stock.

(2) The stock option vests according to its terms and will be fully vested on March 11, 2028.

**Signature:** /s/ Shirley Li,  Attorney-in-Fact  
**Date:** 2026-05-15

### 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.**