# EDGAR Filing Document

**Accession Number:** 0002087450
**File Stem:** 0001094891-26-000026
**Filing Date:** 2026-1
**Character Count:** 5436
**Document Hash:** c3c652ffe7ed3e6d3dc65123eea9eab3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001094891-26-000026.hdr.sgml**: 20260122

**ACCESSION NUMBER**: 0001094891-26-000026

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260122

**FILED AS OF DATE**: 20260122

**DATE AS OF CHANGE**: 20260122

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Jaffe Adam H
- **CENTRAL INDEX KEY:** 0001745026

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43070
- **FILM NUMBER:** 26552387

**MAIL ADDRESS:**
- **STREET 1:** C/O ALLEGRO MERGER CORP.
- **STREET 2:** 777 THIRD AVENUE, 37TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Legato Merger Corp. IV
- **CENTRAL INDEX KEY:** 0002087450
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 777 THIRD AVENUE
- **STREET 2:** 37TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017
- **BUSINESS PHONE:** 212-319-7676

**MAIL ADDRESS:**
- **STREET 1:** 777 THIRD AVENUE
- **STREET 2:** 37TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017

### 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>Jaffe Adam H<br><sub>(Last) (First) (Middle)</sub><br>C/O LEGATO MERGER CORP. IV<br>777 THIRD AVENUE<br><sub>(Street)</sub><br>NEW YORK, NY 10017<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Legato Merger Corp. IV [ LEGO ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-01-22 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_CFO_ | **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 |
| Ordinary Shares | 501200<sup>(1)</sup> | D |  |
| Ordinary Shares | 225900<sup>(2)</sup> | I | By Roth IRA |

---

## 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 |
| Warrants<sup>(3)</sup> | <sup>(4)</sup> | <sup>(5)</sup> | Ordinary Shares | 400 | $11.50 | D |  |

---

### Footnotes:

(1) Includes (i) 1,200 shares contained within units that the reporting person has irrevocably agreed to purchase at the closing of the Issuer's initial public offering (the "IPO") and (ii) up to 76,364 shares subject to forfeiture in the event the underwriters of the IPO do not exercise their over-allotment option in full.

(2) Includes up to 34,502 shares subject to forfeiture in the event the underwriters of the IPO do not exercise their over-allotment option in full.

(3) Represents warrants contained within units that the reporting person has irrevocably agreed to purchase at the closing of the Issuer's IPO.

(4) Each warrant will become exercisable 30 days after the completion by the Issuer of an initial business combination.

(5) Each warrant will expire five years after the completion by the Issuer of an initial business combination, or earlier upon redemption; provided that the warrants will expire earlier if the Issuer has not completed an initial business combination within the required time period and liquidates the trust account in connection therewith.

**Signature:** /s/ Adam H. Jaffe  
**Date:** 2026-01-22

### 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.**