# EDGAR Filing Document

**Accession Number:** 0001938569
**File Stem:** 0001213900-25-096685
**Filing Date:** 2025-10
**Character Count:** 7790
**Document Hash:** 767e4479bbce2ddf5a7db5801b6c34a6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-25-096685.hdr.sgml**: 20251006

**ACCESSION NUMBER**: 0001213900-25-096685

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251006

**DATE AS OF CHANGE**: 20251006

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Palomino Laboratories Inc.
- **CENTRAL INDEX KEY:** 0001938569
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 881619619
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-95213
- **FILM NUMBER:** 251377844

**BUSINESS ADDRESS:**
- **STREET 1:** 12 E. 49TH STREET
- **STREET 2:** 11TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017
- **BUSINESS PHONE:** (917) 200-3734

**MAIL ADDRESS:**
- **STREET 1:** 12 E. 49TH STREET
- **STREET 2:** 11TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Unite Acquisition 3 Corp.
- **DATE OF NAME CHANGE:** 20220719
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Lucius Partners LLC
- **CENTRAL INDEX KEY:** 0002002106

**ORGANIZATION NAME:**
- **EIN:** 843461971
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** 12 E 49TH STREET, FLOOR 11
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017
- **BUSINESS PHONE:** 917-200-3734

**MAIL ADDRESS:**
- **STREET 1:** 12 E 49TH STREET, FLOOR 11
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**Palomino Laboratories Inc.**

*(Name of Issuer)*

**Common Stock, $0.0001 par value per share**

*(Title of Class of Securities)*

**000000000**

*(CUSIP Number)*

**Matthew Eitner**<br>Lucius Partners LLC<br>12 E. 49th Street 11th Floor<br>New York NY 10017<br>212-953-4900

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**09/29/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **000000000** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Matthew Eitner** | Name of reporting person<br>**Matthew Eitner** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**4000000.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**4000000.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**4000000.00** | Aggregate amount beneficially owned by each reporting person<br>**4000000.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**23%** | Percent of class represented by amount in Row (11)<br>**23%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

| **CUSIP No.** | **000000000** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Lucius Partners LLC** | Name of reporting person<br>**Lucius Partners LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**4000000.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**4000000.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**4000000.00** | Aggregate amount beneficially owned by each reporting person<br>**4000000.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**23%** | Percent of class represented by amount in Row (11)<br>**23%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, $0.0001 par value per share

**(b) Name of Issuer:**
Palomino Laboratories Inc.

**(c) Address of Issuer's Principal Executive Offices:**
313 Bryant Court, Palo Alto, CA, 94301

**Item 5. Interest in Securities of the Issuer**

**(a)**
The Reporting Persons beneficially own an aggregate of 4,000,000 shares of Common Stock of the Issuer. Based on 17,611,292 shares of Common Stock outstanding, as reported by the Issuer, the Reporting Persons holdings represent approximately 23% of the outstanding Common Stock.

**(b)**
Lucius Partners, LLC holds direct beneficial ownership of the shares. Matthew Eitner, as the Managing Member of Lucius Partners, LLC, may be deemed to share voting and dispositive power over such shares.

**(c)**
Other than the transaction described herein, the Reporting Persons have not engaged in any transactions in the securities of the Issuer during the past 60 days.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Matthew Eitner

**Signature:** /s/ Matthew Eitner

**Name/Title:** Matthew Eitner

**Date:** 10/06/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Lucius Partners LLC

**Signature:** /s/ Matthew Eitner

**Name/Title:** Matthew Eitner, Managing Member

**Date:** 10/06/2025