# EDGAR Filing Document

**Accession Number:** 0001485003
**File Stem:** 0001104659-25-124513
**Filing Date:** 2025-12
**Character Count:** 3096
**Document Hash:** e844a27b53a24de14368aa6c3ece434b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-124513.hdr.sgml**: 20251229

**ACCESSION NUMBER**: 0001104659-25-124513

**CONFORMED SUBMISSION TYPE**: 15-12G

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251229

**DATE AS OF CHANGE**: 20251229

**EFFECTIVENESS DATE**: 20251229

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Carisma Therapeutics Inc.
- **CENTRAL INDEX KEY:** 0001485003
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 262025616
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 15-12G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-36296
- **FILM NUMBER:** 251603128

**BUSINESS ADDRESS:**
- **STREET 1:** 3675 MARKET STREET
- **STREET 2:** SUITE 401
- **CITY:** PHILADELPHIA
- **STATE:** PA
- **ZIP:** 19104
- **BUSINESS PHONE:** 2674916422

**MAIL ADDRESS:**
- **STREET 1:** 3675 MARKET STREET
- **STREET 2:** SUITE 401
- **CITY:** PHILADELPHIA
- **STATE:** PA
- **ZIP:** 19104

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Sesen Bio, Inc.
- **DATE OF NAME CHANGE:** 20180516

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Eleven Biotherapeutics, Inc.
- **DATE OF NAME CHANGE:** 20100223

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

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**FORM 15** 

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**CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION** 

**UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934** 

**OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d)** 

**OF THE SECURITIES EXCHANGE ACT OF 1934.**

**Commission File Number: 001-36296**

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**CARISMA THERAPEUTICS INC.** 

**(Exact name of registrant as specified in its charter)** 

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**Carisma Therapeutics Inc.**

**3675 Market Street, Suite 401**

**Philadelphia, PA 19104**

**(267) 491-6422**

**(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)** 

**Common Stock, $0.001 par value** 

**(Title of each class of securities covered by this Form)** 

**None** 

**(Titles of all other classes of securities for which a duty to file reports under Section 13(a) or 15(d) remains)** 

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Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports:

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| | |
|:---|:---|
| Rule 12g-4(a)(1) | x |
| Rule 12g-4(a)(2) | ¨ |
| Rule 12h-3(b)(1)(i) | x |
| Rule 12h-3(b)(1)(ii) | ¨ |
| Rule 15d-6 | ¨ |
| Rule 15d-22(b) | ¨ |

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Approximate number of holders of record as of the certification or notice date: 36

Pursuant to the requirements of the Securities Exchange Act of 1934, Carisma Therapeutics Inc. has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person.

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| | | |
|:---|:---|:---|
| Date: December 29, 2025 | **Carisma Therapeutics Inc.** | **Carisma Therapeutics Inc.** |
|  | By: | /s/ Steven Kelly |
|  | Name: | Steven Kelly |
|  | Title: | Interim Chief Executive Officer |

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