# EDGAR Filing Document

**Accession Number:** 0001805833
**File Stem:** 0001906862-25-000015
**Filing Date:** 2025-7
**Character Count:** 8699
**Document Hash:** 1b65d97b1bcfb2764d658bea82b726a1
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001906862-25-000015.hdr.sgml**: 20250730

**ACCESSION NUMBER**: 0001906862-25-000015

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250728

**FILED AS OF DATE**: 20250730

**DATE AS OF CHANGE**: 20250730

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Kidambi Tridivesh
- **CENTRAL INDEX KEY:** 0001906862

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39331
- **FILM NUMBER:** 251168794

**MAIL ADDRESS:**
- **STREET 1:** C/O TREBIA ACQUISITION CORP.
- **STREET 2:** 41 MADISON AVENUE, SUITE 2020
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10010
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** System1, Inc.
- **CENTRAL INDEX KEY:** 0001805833
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 923978051
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 4235 REDWOOD AVENUE
- **CITY:** MARINA DEL REY
- **STATE:** CA
- **ZIP:** 90066
- **BUSINESS PHONE:** 310-924-6037

**MAIL ADDRESS:**
- **STREET 1:** 4235 REDWOOD AVENUE
- **CITY:** MARINA DEL RAY
- **STATE:** CA
- **ZIP:** 90066

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Trebia Acquisition Corp.
- **DATE OF NAME CHANGE:** 20200306

### 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>Kidambi Tridivesh<br><sub>(Last) (First) (Middle)</sub><br>4235 REDWOOD AVE<br><sub>(Street)</sub><br>LOS ANGELES, CA 90066<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-07-28 | **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>System1, Inc. [ SST ] | **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 | 2025-07-28 |  | F |  | 224<sup>(1)</sup> | D | $7.51 | 71124<sup>(2)</sup> | D |  |
| Class A Common Stock | 2025-07-29 |  | A |  | 50000<sup>(3)</sup> | A | $0 | 121124<sup>(4)</sup> | D |  |

---

## 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 |
| Stock Appreciation Rights<sup>(5)</sup> | $7.09 | 2025-07-29 |  | A |  | 20000 |  | <sup>(6)</sup> | 2032-07-29 | Class A Common Stock | 20000 | $0 | 72000<sup>(7)</sup> | D |  |

---

### Footnotes:

(1) Upon the vesting of 625 restricted stock units ("RSUs") previously granted to the reporting person, the Company withheld 224 shares to cover the reporting person's tax withholding obligation with respect to the vesting of such RSUs.

(2) Includes 6,276 unvested RSUs.

(3) The Reporting Person was granted 50,000 restricted stock units ("RSUs") in connection with his continued employment with System1, Inc. ("SST"). Each RSU represents the right to receive one share of SST Class A Common Stock upon vesting. Subject to the continued employment of Mr. Kidambi through the applicable vesting date, one-third of the RSUs will vest on July 15, 2026, and the remaining two-thirds will vest in 8 substantially equal quarterly installments on each quarterly anniversary thereafter.

(4) Includes 56,276 unvested RSUs.

(5) These stock appreciation rights (the "SARs") were granted to the Reporting Person pursuant to the System1, Inc. 2024 Stock Appreciation Rights Plan, as amended (the "Plan") and a corresponding Stock Appreciation Rights Grant Notice and Award Agreement between System1, Inc. (the "Issuer") and the Reporting Person. The SARs reported on this Form 4 represent the right to receive (at the Issuer's discretion), upon exercise of the SARs by the Reporting Person, a payment in either (x) Class A Common Stock, par value $0.0001 per share ("Class A Common Stock") or (y) cash, in the amount equal to the number of shares of Class A Common Stock underlying the number of SARs being exercised multiplied by the excess of the fair market value of one share of Class A Common Stock on (i) the date the SARs are exercised, and (ii) $7.09, the Issuer's closing price on July 29, 2025 (the date the SARs were granted, the "Grant Date").

(6) These Stock Appreciation Rights (the "SARs") were granted to the Reporting Person on July 29, 2025 under the System1, Inc. 2024 Stock Appreciation Rights Plan, as amended (the "Plan") and vest (i) 25% (or 5,000 SARs) upon the Issuer first achieving trailing twelve month Adjusted EBITDA ("TTM Adjusted EBITDA") of $50.0 million after the date of grant, (ii) 25% (or 5,000 SARs) upon the Issuer first achieving TTM Adjusted EBITDA of $55.0 million after the date of grant, (iii) 25% (or 5,000 SARs) upon the Issuer first achieving TTM Adjusted EBITDA of $60.0 million after the date of grant and (iv) 25% (or 5,000 SARs) upon the Issuer first achieving TTM Adjusted EBITDA of $65.0 million after the date of grant, in each case, subject to the terms of the Plan and an award agreement entered into between the Reporting Person and the Issuer pursuant to the Plan.

(7) Represents the total number of SARs held by the Reporting Person after the Issuer's completion of a 1-for-10 reverse stock split that occurred on June 11, 2025.

**Signature:** /s/ Daniel Weinrot, Attorney-in-Fact for Tridivesh Kidambi  
**Date:** 2025-07-30

### 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.**