# EDGAR Filing Document

**Accession Number:** 0001810182
**File Stem:** 0001193125-26-030561
**Filing Date:** 2026-1
**Character Count:** 13305
**Document Hash:** a968ae3ff6e3d8ad1f315ae2e306efc8
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-030561.hdr.sgml**: 20260130

**ACCESSION NUMBER**: 0001193125-26-030561

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 14

**CONFORMED PERIOD OF REPORT**: 20260130

**ITEM INFORMATION**: Other Events

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260130

**DATE AS OF CHANGE**: 20260130

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ALX ONCOLOGY HOLDINGS INC
- **CENTRAL INDEX KEY:** 0001810182
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 850642577
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39386
- **FILM NUMBER:** 26580612

**BUSINESS ADDRESS:**
- **STREET 1:** 323 ALLERTON AVENUE
- **CITY:** SOUTH SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94080
- **BUSINESS PHONE:** 650-466-7125

**MAIL ADDRESS:**
- **STREET 1:** 323 ALLERTON AVENUE
- **CITY:** SOUTH SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94080

?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): January 30, 2026

## ALX ONCOLOGY HOLDINGS INC.

#### (Exact name of Registrant as Specified in Its Charter)

---

| | | |
|:---|:---|:---|
| **Delaware** | **001-39386** | **85-0642577** |
| **(State or Other Jurisdiction**<br> **of Incorporation)** | **(Commission**<br> **File Number)** | **(IRS Employer**<br> **Identification No.)** |

---

---

| | |
|:---|:---|
| **323 Allerton Avenue,**<br> **South San Francisco, California** | **94080** |
| **(Address of Principal Executive Offices)** | **(Zip Code)** |

---

#### 650-466-7125

#### (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, par value $0.001 per share | ALXO | The Nasdaq Global Select 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 8.01** | **Other Events.**  |

---

#### Clinical Update
On January 30, 2026, ALX Oncology Holdings Inc. (the "Company") issued a press release announcing new data from a Phase 1b/2 clinical trial evaluating the Company's investigational CD47-inhibitor evorpacept in combination with Jazz Pharmaceuticals' ZIIHERA® (zanidatamab-hrii) in heavily pretreated patients with metastatic breast cancer ("mBC"). The topline findings, from an exploratory analysis in this trial, indicate that among patients with confirmed HER2-positive mBC, CD47 expression is predictive of evorpacept activity.

A copy of the press release is filed as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

#### Preliminary Unaudited Financial Information
On January 30, 2026, the Company disclosed that, based upon preliminary estimates, it had approximately $48.3 million of cash and cash equivalents and short-term and long-term investments as of December 31, 2025.

The Company has not yet completed its year-end financial close process for the year ended December 31, 2025. This estimate of the Company's cash and cash equivalents and short-term and long-term investments as of December 31, 2025 is preliminary, has not been audited, does not present all information necessary for an understanding of the Company's financial position as of December 31, 2025, and is subject to change upon completion of its financial statement closing procedures. Additional information and disclosure would be required for a more complete understanding of the Company's financial position and results of operations as of December 31, 2025. The Company's independent registered public accounting firm has not audited, reviewed or performed any procedures with respect to this preliminary result and, accordingly, does not express an opinion or any other form of assurance about it.

#### Cautionary Statement Concerning Forward-Looking Statements
This Current Report contains forward-looking statements that involve substantial risks and uncertainties. Forward-looking statements include, without limitation, statements relating to the Company's preliminary estimates of cash and cash equivalents and short-term and long-term investments as of December 31, 2025. Such forward-looking statements are based on the Company's beliefs and assumptions and on information currently available to it on the date of this Current Report on Form 8-K. Forward-looking statements may involve known and unknown risks, uncertainties and other factors that may cause the Company's actual results, performance or achievements to be materially different from those expressed or implied by the forward-looking statements. These and other risks are described more fully in the Company's filings with the Securities and Exchange Commission ("SEC"), including the Company's Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and other documents the Company files with the SEC from time to time. Except to the extent required by law, the Company undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made.

---

| | |
|:---|:---|
| **Item 9.01** | **Financial Statements and Exhibits.**  |

---

(d) Exhibits.

---

| | |
|:---|:---|
| **Exhibit**<br> **No.** | **Description** |
| 99.1 | [Press Release dated January 30, 2026.](d68428dex991.htm) |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document). |

---

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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 authorized.

---

| | | |
|:---|:---|:---|
|  | **ALX ONCOLOGY HOLDINGS INC.** | **ALX ONCOLOGY HOLDINGS INC.** |
| Date: January 30, 2026 | By: | /s/ Harish Shantharam |
|  |  | Harish Shantharam |
|  |  | Chief Financial Officer |

---

## Exhibit 99.1

**Exhibit 99.1**![LOGO](g68428g0130094112304.jpg)

**New Data Demonstrate CD47 Expression Level Helps Predict Response to** 

**ALX Oncology's Evorpacept in Combination with Ziihera (zanidatamab-hrii) in** 

**Advanced HER2-Positive Breast Cancer** 

***- Exploratory analysis from Phase 1b/2 breast cancer trial reinforces CD47 as a predictive biomarker for response, as previously observed in the ASPEN-06 trial in HER2-positive gastric cancer –***

***- Full data set submitted for presentation at an upcoming scientific conference -***

**SOUTH SAN FRANCISCO, Calif., January 30, 2026 (GLOBE NEWSWIRE) –** ALX Oncology Holdings Inc. ("ALX Oncology," Nasdaq: ALXO), a clinical-stage biotechnology company advancing a pipeline of novel therapies designed to treat cancer and extend patients' lives, announced new data from a Phase 1b/2 clinical trial evaluating the company's investigational CD47-inhibitor evorpacept in combination with Jazz Pharmaceuticals' ZIIHERA<sup>®</sup> (zanidatamab-hrii) in heavily pretreated patients with metastatic breast cancer (mBC). The topline findings, from an exploratory analysis in this trial, indicate that among patients with confirmed HER2-positive mBC, CD47 expression is predictive of evorpacept activity.

"These new findings support a CD47-dependent, HER2-driven biology for evorpacept," said Barbara Klencke, M.D., Chief Medical Officer at ALX Oncology. "Going forward, we believe that a biomarker-driven approach incorporating CD47 expression may optimize patient selection for evorpacept combinations with HER2-targeted agents. Additionally, taken together, the data from this trial and the ASPEN-06 clinical trial reinforce our confidence in the ongoing ASPEN-09-Breast Phase 2 trial."

The Phase 1b/2 open-label, multi-center clinical trial (NCT05027139) evaluated the potential of evorpacept in combination with zanidatamab as a novel treatment for patients with previously treated, inoperable, locally advanced, or metastatic HER2-expressing breast cancer and other cancers. The primary trial results, presented at the 2024 San Antonio Breast Cancer Symposium (SABCS), demonstrated that the investigational combination generated promising anti-tumor activity and a manageable safety profile in patients with heavily pretreated HER2-positive breast cancer (median of six prior therapies), including treatment with ENHERTU. Researchers previously reported a 56% (5/9) confirmed objective response rate (cORR) and a median progression-free survival (mPFS) of 7.4 months in the nine patients with centrally confirmed HER2-positive breast cancer who received the investigational combination.

------

The additional exploratory analysis, conducted to identify biomarkers of response to the evorpacept/zanidatamab combination, shows that responses in this trial were largely restricted to patients with higher CD47 expression. This finding reinforces results from the ASPEN-06 clinical trial, which demonstrated that CD47 expression is a predictive biomarker for response and durable benefit from evorpacept among patients with advanced gastric cancer that has retained HER2 expression.

The full biomarker analysis from the Phase 1b/2 clinical trial has been submitted to an upcoming scientific congress for presentation.

**About ALX Oncology** 

ALX Oncology (Nasdaq: ALXO) is a clinical-stage biotechnology company advancing a pipeline of novel therapies designed to treat cancer and extend patients' lives. ALX Oncology's lead therapeutic candidate, evorpacept, has demonstrated potential to serve as a cornerstone therapy upon which the future of immuno-oncology can be built. Evorpacept is currently being evaluated across multiple ongoing clinical trials in a wide range of cancer indications. ALX Oncology's second pipeline candidate, ALX2004, is a novel EGFR-targeted antibody-drug conjugate with a differentiated mechanism of action. A Phase 1, dose-escalation trial of ALX2004 is ongoing in patients with EGFR-expressing solid tumors. More information is available at www.alxoncology.com and on LinkedIn @ALX Oncology.

**Cautionary Note Regarding Forward-Looking Statements** 

This press release contains forward-looking statements that involve substantial risks and uncertainties. Forward-looking statements include statements regarding future results of operations and financial position, business strategy, product candidates, planned preclinical studies and clinical trials, results of clinical trials, research and development costs, regulatory approvals, timing and likelihood of success, plans and objects of management for future operations, as well as statements regarding industry trends. Such forward-looking statements are based on ALX Oncology's beliefs and assumptions and on information currently available to it on the date of this press release. Forward-looking statements may involve known and unknown risks, uncertainties and other factors that may cause ALX Oncology's actual results, performance or achievements to be materially different from those expressed or implied by the forward-looking statements. These and other risks are described more fully in ALX Oncology's filings with the Securities and Exchange Commission (SEC), including ALX Oncology's Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and other documents ALX Oncology files with the SEC from time to time. Except to the extent required by law, ALX Oncology undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made.

**# # #** 

**Investor Relations Contact:** 

Elhan Webb, CFA, IR Consultant

ewebb@alxoncology.com

**Media Contact:** 

Michele Parisi, SparkPoint Healthcare Communications

mparisi@sparkpointpr.com

(925) 864-5028