# EDGAR Filing Document

**Accession Number:** 0001754068
**File Stem:** 0001193125-26-151215
**Filing Date:** 2026-4
**Character Count:** 6030
**Document Hash:** ce57413d7d06d47a51912849d0d71584
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-151215.hdr.sgml**: 20260410

**ACCESSION NUMBER**: 0001193125-26-151215

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 11

**CONFORMED PERIOD OF REPORT**: 20260408

**ITEM INFORMATION**: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

**FILED AS OF DATE**: 20260410

**DATE AS OF CHANGE**: 20260410

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Kalaris Therapeutics, Inc.
- **CENTRAL INDEX KEY:** 0001754068
- **STANDARD INDUSTRIAL CLASSIFICATION:** BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 831971007
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39409
- **FILM NUMBER:** 26854772

**BUSINESS ADDRESS:**
- **STREET 1:** 400 CONNELL DRIVE
- **STREET 2:** SUITE 5500
- **CITY:** BERKELEY HEIGHTS
- **STATE:** NJ
- **ZIP:** 07922
- **BUSINESS PHONE:** 650-249-2727

**MAIL ADDRESS:**
- **STREET 1:** 400 CONNELL DRIVE
- **STREET 2:** SUITE 5500
- **CITY:** BERKELEY HEIGHTS
- **STATE:** NJ
- **ZIP:** 07922

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Allovir, Inc.
- **DATE OF NAME CHANGE:** 20190521

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ViraCyte, Inc.
- **DATE OF NAME CHANGE:** 20180924

?xml version='1.0' encoding='ASCII'? 8-K

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

### FORM 8-K

#### CURRENT REPORT

#### Pursuant to Section 13 or 15(d)

#### of the Securities Exchange Act of 1934

#### Date of Report (Date of earliest event reported): April 8, 2026

## KALARIS THERAPEUTICS, INC.

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

---

| | | |
|:---|:---|:---|
| **Delaware** | **001-39409** | **83-1971007** |
| **(State or other jurisdiction**<br> **of incorporation)** | **(Commission**<br> **File Number)** | **(I.R.S. Employer**<br> **Identification No.)** |

---

#### Kalaris Therapeutics, Inc.

---

| |
|:---|
| **400 Connell Drive, Suite 5500** |
| **Berkeley Heights, New Jersey 07922** |

---

#### (Address of principal executive offices, including zip code)
(650) 249-2727

#### (Registrant's telephone number, including area code)

#### Not applicable

#### (Former Name or Former Address, if Changed Since Last Report)
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 (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

---

| | | |
|:---|:---|:---|
| **Title of each class** | **Trading**<br> **Symbol(s)** | **Name of each exchange**<br> **on which registered** |
| Common Stock, $0.0001 par value per share | KLRS | The Nasdaq Global Market |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

------

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| | |
|:---|:---|
| **Item 5.02.** | **Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.**  |

---

*Resignation of Chief Financial Officer* 

On April 8, 2026, Matthew Gall notified Kalaris Therapeutics, Inc. (the "Company") of his decision to resign as the Chief Financial Officer of the Company, effective April 14, 2026 (the "Separation Date").

*Appointment of Principal Financial Officer* 

As a result of Mr. Gall's resignation, Brett Hagen, the Company's Chief Accounting Officer and principal accounting officer, will also serve as the Company's principal financial officer, effective as of the Separation Date.

Brett Hagen, 53, has served as the Company's Chief Accounting Officer since January 2019. Prior to joining the Company, Mr. Hagen served as senior director finance and accounting at Eloxx Pharmaceuticals, Inc. from February 2018 to August 2018. Prior to that, Mr. Hagen served as vice president, finance and controller at Proteostasis Therapeutics, Inc. from May 2016 to December 2017. From July 2014 to May 2016, Mr. Hagen served as controller at BIND Therapeutics, Inc. Mr. Hagen received his B.A. from the University of Minnesota, a graduate degree in accounting from Wright State University and a graduate degree in finance from Suffolk University.

Mr. Hagen does not have a family relationship with any of the Company's officers or directors and has no direct or indirect interest in any transaction required to be disclosed pursuant to Item 404(a) of Regulation S-K.

There have been no changes to Mr. Hagen's compensatory plans or arrangements in connection with his appointment described herein.

------

#### 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 hereunto duly authorized.

---

| | | |
|:---|:---|:---|
|  | **KALARIS THERAPEUTICS, INC.** | **KALARIS THERAPEUTICS, INC.** |
| Date: April 10, 2026 | By: | /s/ Andrew Oxtoby |
|  | Name: | Andrew Oxtoby |
|  | Title: | Chief Executive Officer |

---