# EDGAR Filing Document

**Accession Number:** 0001599214
**File Stem:** 0001213900-26-006860
**Filing Date:** 2026-1
**Character Count:** 9197
**Document Hash:** fd12a669d07a23b8d2501fc6e5587b08
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-006860.hdr.sgml**: 20260122

**ACCESSION NUMBER**: 0001213900-26-006860

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260122

**FILED AS OF DATE**: 20260122

**DATE AS OF CHANGE**: 20260122

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Chen Bihua
- **CENTRAL INDEX KEY:** 0001599214

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43069
- **FILM NUMBER:** 26553020

**MAIL ADDRESS:**
- **STREET 1:** C/O CORMORANT ASSET MANAGEMENT, LP
- **STREET 2:** 200 CLARENDON STREET, 52ND FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Helix Holdings III LLC
- **CENTRAL INDEX KEY:** 0002105798

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43069
- **FILM NUMBER:** 26553019

**BUSINESS ADDRESS:**
- **STREET 1:** C/O CORMORANT ASSET MANAGEMENT LP
- **STREET 2:** 200 CLARENDON STREET, 52ND FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116
- **BUSINESS PHONE:** (857) 702-0370

**MAIL ADDRESS:**
- **STREET 1:** C/O CORMORANT ASSET MANAGEMENT LP
- **STREET 2:** 200 CLARENDON STREET, 52ND FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Helix Acquisition Corp. III
- **CENTRAL INDEX KEY:** 0002099656
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 981895727
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** C/O CORMORANT ASSET MANAGEMENT LP
- **STREET 2:** 200 CLARENDON STREET, 52ND FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116
- **BUSINESS PHONE:** (857) 702-0370

**MAIL ADDRESS:**
- **STREET 1:** C/O CORMORANT ASSET MANAGEMENT LP
- **STREET 2:** 200 CLARENDON STREET, 52ND FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116

## Exhibit 99.1

**Exhibit 99.1**

---

| | |
|:---|:---|
| Joint Filer Information | Joint Filer Information |
| Name of Joint Filer: | Helix Holdings III LLC |
| Address of Joint Filer: | c/o Cormorant Asset Management, LP<br> 200 Clarendon Street, 52<sup>nd</sup> Floor<br> Boston, MA 02116 |
| Relationship of Joint Filer to Issuer: | 10% Owner, Director |
| Issuer Name and Ticker or Trading Symbol: | Helix Acquisition Corp. III [HLXC] |
| Date of Event Requiring Statement: |  |
| &nbsp;&nbsp;&nbsp;(Month/Day/Year): | 01/22/2026 |
| Name of Joint Filer: | Bihua Chen |
| Address of Joint Filer: | c/o Cormorant Asset Management, LP<br> 200 Clarendon Street, 52<sup>nd</sup> Floor<br> Boston, MA 02116 |
| Relationship of Joint Filer to Issuer: | 10% Owner, Director, Officer |
| Issuer Name and Ticker or Trading Symbol: | Helix Acquisition Corp. III [HLXC] |
| Date of Event Requiring Statement: |  |
| &nbsp;&nbsp;&nbsp;(Month/Day/Year): | 01/22/2026 |

---

### 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>Chen Bihua<br><sub>(Last) (First) (Middle)</sub><br>C/O CORMORANT ASSET MANAGEMENT LP<br>200 CLARENDON STREET, 52ND FLOOR<br><sub>(Street)</sub><br>BOSTON, MA 02116<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Helix Acquisition Corp. III [ HLXC ] | **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   [X] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_Chairperson and CEO_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Helix Holdings III LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O CORMORANT ASSET MANAGEMENT LP<br>200 CLARENDON STREET, 52ND FLOOR<br><sub>(Street)</sub><br>BOSTON, MA 02116<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Helix Acquisition Corp. III [ HLXC ] | **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>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] 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 |

---

## 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 |
| Class B Ordinary Shares | <sup>(1)</sup> | <sup>(1)</sup> | Class A Ordinary Shares | 3533750<sup>(2)</sup> | <sup>(1)</sup> | I<sup>(3)</sup> | See footnote |

---

### Footnotes:

(1) The reporting person owns 30,000 Class B ordinary shares which will automatically convert into Class A ordinary shares concurrently with or immediately following the consummation of the Issuer's initial business combination or earlier at the option of the holder on a one-for-one basis, subject to adjustment for share sub-divisions, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights as described under the heading "Description of Securities--Founder Shares and Private Placement Shares" in the Issuer's registration statement on Form S-1 (File No. 333-291933) ("Registration Statement") and have no expiration date.

(2) The Class B ordinary shares beneficially owned by the Reporting Person include up to 468,750 Class B ordinary shares subject to forfeiture to the Issuer depending on the extent to which the underwriters' over-allotment option is exercised in full in connection with the Issuer's initial public offering of shares, as described in the Registration Statement.

(3) Helix Holdings III LLC is the record holder of the securities reported herein. Cormorant Private Healthcare Fund VI, LP ("Cormorant Fund VI") and Cormorant Global Healthcare Master Fund ("Cormorant Master Fund"), LP, together own 100% of the membership interests in Helix Holdings III LLC. Bihua Chen is the managing member of each of Cormorant Fund VI and Cormorant Master Fund and has voting and investment discretion with respect to the ordinary shares held of record by Helix Holdings III LLC. Bihua Chen disclaims any beneficial ownership of the securities held by Helix Holdings III LLC other than to the extent of any pecuniary interest she may have therein, directly or indirectly.

**Remarks:**
Helix Holdings III LLC may be deemed a director by deputization by virtue of its representation on the board of directors of the Issuer. See Exhibit 99.1 - Joint Filer Information, which is incorporated herein by reference and describes in further detail the relationships of the Reporting Persons to the Issuer.

**Signature:** /s/ Bihua Chen, Name: Bihua Chen  
**Date:** 2026-01-22

**Signature:** Helix Holdings III LLC, /s/ Bihua Chen, Managing Member  
**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.**