# EDGAR Filing Document

**Accession Number:** 0001345099
**File Stem:** 0001345099-26-000031
**Filing Date:** 2026-3
**Character Count:** 7902
**Document Hash:** 1360e71e2434ae28e65c3259d860487b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001345099-26-000031.hdr.sgml**: 20260312

**ACCESSION NUMBER**: 0001345099-26-000031

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 4

**CONFORMED PERIOD OF REPORT**: 20260312

**FILED AS OF DATE**: 20260312

**DATE AS OF CHANGE**: 20260312

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MESOBLAST LTD
- **CENTRAL INDEX KEY:** 0001345099
- **STANDARD INDUSTRIAL CLASSIFICATION:** BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 000000000
- **STATE OF INCORPORATION:** C3
- **FISCAL YEAR END:** 0630

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-37626
- **FILM NUMBER:** 26748823

**BUSINESS ADDRESS:**
- **STREET 1:** LEVEL 38
- **STREET 2:** 55 COLLINS STREET
- **CITY:** MELBOURNE, VICTORIA
- **STATE:** C3
- **ZIP:** 3000
- **BUSINESS PHONE:** 613 9639 6036

**MAIL ADDRESS:**
- **STREET 1:** LEVEL 38
- **STREET 2:** 55 COLLINS STREET
- **CITY:** MELBOURNE, VICTORIA
- **STATE:** C3
- **ZIP:** 3000

**UNITED STATES <br>SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**Form 6-K** 

**Report of Foreign Private Issuer<br>Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934** 

**For the month of March 2026**

**Commission File Number 001-37626**

**Mesoblast Limited** 

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

**Not Applicable**

(*Translation of Registrant's name into English)*

**Australia**<br>(*Jurisdiction of incorporation or organization)*

**Silviu Itescu**

**Chief Executive Officer and Executive Director**

**Level 38**

**55 Collins Street**

**Melbourne 3000**

**Australia** 

(*Address of principal executive offices*)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F:

Form 20-F ☑ Form 40-F ☐

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**INFORMATION CONTAINED ON THIS REPORT ON FORM 6-K**

On March 12, 2026, Mesoblast Limited filed with the Australian Securities Exchange a new release announcement, which is attached hereto as <u>Exhibit 99.1</u>, and is incorporated herein by reference.

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**SIGNATURES** 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly organized.

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| |
|:---|
| <br>Mesoblast Limited |
| /s/ Paul Hughes |
| Paul Hughes |
| *Company Secretary* |

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Dated: March 12, 2026

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**INDEX TO EXHIBITS**

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| | |
|:---|:---|
| Item | |
| <u>[99.1](exhibit991maappointment.htm)</u> | Press release of Mesoblast Ltd, dated March 12, 2026. |

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## Exhibit 99.1

![](exhibit991maappointment001.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DR. TERESA MONTAGUT APPOINTED AS CLINICAL DEVELOPMENT AND MEDICAL AFFAIRS HEAD AT MESOBLAST New York, USA: March 11 and Melbourne, Australia: March 12, 2026: Mesoblast Limited (ASX:MSB; Nasdaq:MESO), global leader in allogeneic cellular medicines for inflammatory diseases, today announced the appointment of Teresa Montagut MD, PhD in the newly established position of Head of Clinical Development and Medical Affairs reporting to the Chief Medical Officer Dr. Eric Rose. In this role, Teresa will lead Mesoblast's medical affairs organization, fostering clinical collaborations and spearheading investigator-initiated trials, enhancing clinical and medical communications, and engaging with healthcare professionals. She will play a critical role in unlocking the value of Mesoblast's cell therapy programs in new pediatric and adult inflammatory conditions in partnership with investigators and key opinion leaders. Teresa brings extensive experience in medical leadership and pharmaceutical development, with a strong background in translating clinical science into meaningful patient outcomes. Teresa joined Mesoblast from Regeneron where she was Global Head of Early Pipeline Studies in Oncology and Head of Medical Affairs for Investigator Sponsored Studies in gastrointestinal and genitourinary areas. She previously led multiple cancer immunotherapy programs across Novartis, Genentech, and Atara Biotherapeutics. Teresa earned her MD from Universidad Nacional Autónomade México and her PhD in Tumor Immunology from Memorial Sloan Kettering Cancer Center/Cornell University. She completed fellowships at Massachusetts General Hospital, Howard Hughes Medical Institute, and Rockefeller University. Teresa also serves on the Board of Directors of the Global Pediatric Alliance, supporting maternal and pediatric healthcare in under-served indigenous communities in Latin America, particularly Mexico. "Teri's commitment to scientific excellence and her expertise in investigator-initiated clinical trial execution is central to successful implementation of our strategy to expand the range of indications of our FDA approved product Ryoncil® in pediatric and adult inflammatory conditions, as well as advancing our pipeline of transformative cellular therapies," said Dr. Silviu Itescu, Chief Executive Officer of Mesoblast. About Mesoblast Mesoblast (the Company) is a world leader in developing allogeneic (off-the-shelf) cellular medicines for the treatment of severe and life-threatening inflammatory conditions. The therapies from the Company's proprietary mesenchymal lineage cell therapy technology platform respond to severe inflammation by releasing anti-inflammatory factors that counter and modulate multiple effector arms of the immune system, resulting in significant reduction of the damaging inflammatory process. Mesoblast's Ryoncil® (remestemcel-L-rknd) for the treatment of steroid-refractory acute graft versus host disease (SR-aGvHD) in pediatric patients 2 months and older is the first FDA-approved mesenchymal stromal cell (MSC) therapy. Please see the full Prescribing Information at www.ryoncil.com. Mesoblast is committed to developing additional cell therapies for distinct indications based on its remestemcel-L and rexlemestrocel-L allogeneic stromal cell technology platforms. Ryoncil® is being developed for additional inflammatory diseases including SR-aGvHD in adults and biologic-resistant inflammatory bowel disease. Rexlemestrocel-L is being developed for heart failure and chronic low back pain. The Company has established commercial partnerships in Japan, Europe and China. About Mesoblast intellectual property: Mesoblast has a strong and extensive global intellectual property portfolio, with over 1,000 granted patents or patent applications covering mesenchymal stromal cell compositions of matter, methods of manufacturing and indications. These granted patents

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![](exhibit991maappointment002.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;and patent applications provide commercial protection extending through to at least 2044 in all major markets. About Mesoblast manufacturing: The Company's proprietary manufacturing processes yield industrial-scale, cryopreserved, off-the-shelf, cellular medicines. These cell therapies, with defined pharmaceutical release criteria, are planned to be readily available to patients worldwide. Mesoblast has locations in Australia, the United States and Singapore and is listed on the Australian Securities Exchange (MSB) and on the Nasdaq (MESO). For more information, please see www.mesoblast.com, LinkedIn: Mesoblast Limited and Twitter: @Mesoblast Release authorized by the Chief Executive. For more information, please contact: Corporate Communications / Investors Paul Hughes T: +61 3 9639 6036 Media – Global Media – Australia Rubenstein BlueDot Media Caroline Nelson Steve Dabkowski T: +1 703 489 3037 T: +61 419 880 486 E: cnelson@rubenstein.com E: steve@bluedot.net.au

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