# EDGAR Filing Document

**Accession Number:** 0001229874
**File Stem:** 0001079973-26-000609
**Filing Date:** 2026-5
**Character Count:** 7758
**Document Hash:** 90d75f0771ac745f0c77ef80ed929bfd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001079973-26-000609.hdr.sgml**: 20260507

**ACCESSION NUMBER**: 0001079973-26-000609

**CONFORMED SUBMISSION TYPE**: 3/A

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260501

**FILED AS OF DATE**: 20260507

**DATE AS OF CHANGE**: 20260507

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** KLITGAARD WILLIAM E
- **CENTRAL INDEX KEY:** 0001229874

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41218
- **FILM NUMBER:** 26953075

**MAIL ADDRESS:**
- **STREET 1:** 3455 BRETON LANE
- **CITY:** NAPLES
- **STATE:** FL
- **ZIP:** 34114
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Zapata Quantum, Inc.
- **CENTRAL INDEX KEY:** 0001843714
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-PREPACKAGED SOFTWARE [7372]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 981578373
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 6 LIBERTY SQUARE
- **STREET 2:** #2488
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109
- **BUSINESS PHONE:** 857-367-9002

**MAIL ADDRESS:**
- **STREET 1:** 6 LIBERTY SQUARE
- **STREET 2:** #2488
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Zapata Computing Holdings Inc.
- **DATE OF NAME CHANGE:** 20240328

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Andretti Acquisition Corp.
- **DATE OF NAME CHANGE:** 20210201

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

## FORM 3/A

### 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>KLITGAARD WILLIAM E<br><sub>(Last) (First) (Middle)</sub><br>C/O ZAPATA QUANTUM, INC.<br>6 LIBERTY SQUARE, #2488<br><sub>(Street)</sub><br>BOSTON, MA 02109<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-05-01 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Zapata Quantum, Inc. [ ZPTA ] | **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 |
| Common Stock |  |  |  |  |  |  |  | 176348 | 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 Options (Right to Buy) | $3.80 |  |  |  |  |  |  | <sup>(1)</sup> | 2033-07-31 | Common Stock | 34279 |  |  | D |  |
| Convertible Promissory Note<sup>(2)</sup> | $0.04 |  |  |  |  |  |  | 2025-06-12 | 2026-06-12 | Common Stock | 2500000 |  |  | I | By William E. Klitgaard Trust<sup>(4)</sup> |
| Warrants<sup>(3)</sup> | $0.04 |  |  |  |  |  |  | 2025-06-12 | 2030-06-12 | Common Stock | 1250000 |  |  | I | By William E. Klitgaard Trust<sup>(4)</sup> |

---

### Footnotes:

(1) The stock options are fully executed and received in accordance with the terms of the Business Combination Agreement (the "Business Combination Agreement"), dated as of September 6, 2023, by and among the Issuer, Tigre Merger Sub, Inc. and Zapata Computing, Inc. ("Private Zapata"), in exchange for an option to acquire 75,000 shares of common stock of Private Zapata.

(2) The Notes mature on the one-year anniversary of the issuance date (subject to acceleration upon the occurrence of certain customary events of default or a change of control) and bear 10% per annum interest. The Notes convert automatically upon the Company's completion of a securities offering resulting in gross proceeds of at least $5 million. The Notes and Warrants were sold as units for which the total purchase price paid by the Reporting Person was $100,000.

(3) At any time when a registration statement registering the resale of shares issuable upon exercise of the Warrants is not effective, the Warrants can be exercised cashlessly. The Notes and Warrants were sold as units for which the total purchase price paid by the Reporting Person was $100,000.

(4) The Reporting Person is the trustee for the William E. Klitgaard Trust.

**Remarks:**
The original Form 3 was filed at a time when the Issuer was subject to Section 12(b) of the Securities Exchange Act of 1934. That registration was subsequently withdrawn. The Issuer became subject to the reporting requirements under Section 12(g) of the Securities Exchange Act of 1934 on May 1, 2026. The Form 3 is now being amended to comply with the reporting requirements under Section 12(g).

**Signature:** /s/ William E. Klitgaard  
**Date:** 2026-05-07

### 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.**