Company: LIMN
Filing Date: 2025-06-02
Form Type: 8-K/A
Source: 0001104659-25-055078
Chunk: 0

Company: Liminatus Pharma, Inc.
Filing Date: 2025-06-02
Form: 8-K/A
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

(Amendment No. 1)

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

April 30, 2025

Date of Report (Date of earliest event reported)</div>

| LIMINATUS PHARMA, INC.                                 |
| (Exact Name of Registrant as Specified in its Charter) |

| Delaware                     |     | 001-42626    |     | 93-2710748          |
| (State or other jurisdiction |     | (Commission  |     | (I.R.S. Employer    |
| of incorporation)            |     | File Number) |     | Identification No.) |

| 6 Centerpointe Drive #625, La Palma, CA  |     |     90623 |
| (Address of Principal Executive Offices) |     | -Zip Code |

<div align='center'>Registrant’s telephone number, including
area code: ( 213) 273-5453

Iris Acquisition Corp

3rd Floor Zephyr House

122 Mary Street, George Town

PO Box 10085

Grand Cayman KY1-1001, Cayman Islands

(Former name or former address, if changed since
last report)</div>

Check the appropriate box below if the Form 8-K
filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

| ¨ | Written communications pursuant to Rule 425 under the Securities Act             |
| ¨ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act               |
| ¨ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act |
| ¨ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act |

Securities registered pursuant to Section 12(b) of
the Act:

| Title of each class |     | Trading Symbol(s) |     | Name of each exchange on which registered |
| Common Stock        |     | LIMN              |     | The Nasdaq Stock Market LLC               |
| Warrants            |     | LIMNW             |     | The Nasdaq Stock Market LLC               |

Indicate by check mark whether the registrant
is