# EDGAR Filing Document

**Accession Number:** 0001527753
**File Stem:** 0001193125-25-294454
**Filing Date:** 2025-11
**Character Count:** 4689
**Document Hash:** 31a76ab38b75d1a0e57a2c2521926c77
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-294454.hdr.sgml**: 20251125

**ACCESSION NUMBER**: 0001193125-25-294454

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20251124

**ITEM INFORMATION**: Other Events

**FILED AS OF DATE**: 20251125

**DATE AS OF CHANGE**: 20251125

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Personalis, Inc.
- **CENTRAL INDEX KEY:** 0001527753
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-MEDICAL LABORATORIES [8071]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 275411038
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38943
- **FILM NUMBER:** 251514988

**BUSINESS ADDRESS:**
- **STREET 1:** 6600 DUMBARTON CIRCLE
- **CITY:** FREMONT
- **STATE:** CA
- **ZIP:** 94555
- **BUSINESS PHONE:** 650-752-1300

**MAIL ADDRESS:**
- **STREET 1:** 6600 DUMBARTON CIRCLE
- **CITY:** FREMONT
- **STATE:** CA
- **ZIP:** 94555

?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): November 24, 2025

## Personalis, Inc.

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

---

| | | |
|:---|:---|:---|
| **Delaware** | **001-38943** | **27-5411038** |
| **(State or Other Jurisdiction**<br> **of Incorporation)** | **(Commission**<br> **File Number)** | **(IRS Employer**<br> **Identification No.)** |

---

---

| | |
|:---|:---|
| **6600 Dumbarton Circle**<br> **Fremont, California** | **94555** |
| **(Address of Principal Executive Offices)** | **(Zip Code)** |

---

(650) 752-1300

#### 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 (see General Instructions A.2. below):

☐ 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 | PSNL | 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 8.01 Other Events.
On November 24, 2025, the Centers for Medicare & Medicaid Services Molecular Diagnostics Program revised its reimbursement rate determination for Medicare coverage for our ultrasensitive NeXT Personal<sup>®</sup> test for post-treatment surveillance of cancer recurrence in patients with stage II and III breast cancer. Effective December 1, 2025, the reimbursement rate for the NeXT Personal Dx Breast MRD Recurrence Monitoring Test will be $4,266 and for the NeXT Personal Single Plasma Test the reimbursement rate will be $1,164. Medicare coverage for the NeXT Personal Dx Breast MRD Recurrence Monitoring Test is available once per cancer diagnosis and Medicare coverage for the NeXT Personal Single Plasma Test is available for a period of up to six years post-treatment.

------

#### 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.

---

| | | |
|:---|:---|:---|
| Date: November 25, 2025 | Personalis, Inc. | Personalis, Inc. |
|  | By: | /s/ Aaron Tachibana |
|  |  | Aaron Tachibana |
|  |  | Chief Financial Officer and Chief Operating Officer |

---