# EDGAR Filing Document

**Accession Number:** 0001439725
**File Stem:** 0000905148-25-003393
**Filing Date:** 2025-9
**Character Count:** 12516
**Document Hash:** bad8c94dfd2d017c3f67c48ab95b8734
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000905148-25-003393.hdr.sgml**: 20250923

**ACCESSION NUMBER**: 0000905148-25-003393

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250923

**DATE AS OF CHANGE**: 20250923

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BIODESIX INC
- **CENTRAL INDEX KEY:** 0001439725
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-MEDICAL LABORATORIES [8071]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 203986492
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-91818
- **FILM NUMBER:** 251331942

**BUSINESS ADDRESS:**
- **STREET 1:** 919 WEST DILLON ROAD
- **CITY:** LOUISVILLE
- **STATE:** CO
- **ZIP:** 80027
- **BUSINESS PHONE:** 303-417-0500

**MAIL ADDRESS:**
- **STREET 1:** 919 WEST DILLON ROAD
- **CITY:** LOUISVILLE
- **STATE:** CO
- **ZIP:** 80027
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SCHULER JACK W
- **CENTRAL INDEX KEY:** 0001021412

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**MAIL ADDRESS:**
- **STREET 1:** PO BOX 531
- **CITY:** LAKE BLUFF
- **STATE:** IL
- **ZIP:** 60044

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 9)**

**BIODESIX INC**

*(Name of Issuer)*

**Common Stock, par value $0.001 per share**

*(Title of Class of Securities)*

**09075X207**

*(CUSIP Number)*

**Jack W. Schuler**<br>PO Box 531<br>Lake Bluff IL 60044<br>(520) 906-2991

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**09/19/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **09075X207** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**SCHULER JACK W** | Name of reporting person<br>**SCHULER JACK W** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**20735.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**2130745.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**20735.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**2130745.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2151480.00** | Aggregate amount beneficially owned by each reporting person<br>**2151480.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**27%** | Percent of class represented by amount in Row (11)<br>**27%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** (1) Sole voting and dispositive power includes 20,735 Shares (as defined herein) that the Reporting Person has the right to acquire within 60 days of the date of this filing.

(2) Percent of class is calculated based on a total of 7,954,541 Shares outstanding, as provided by the Issuer on September 22, 2025, plus 20,735 Shares that the Reporting Person has the right to acquire within 60 days of the date of this filing.

| **CUSIP No.** | **09075X207** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Jack W. Schuler Living Trust** | Name of reporting person<br>**Jack W. Schuler Living Trust** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**ILLINOIS** | Citizenship or place of organization<br>**ILLINOIS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**1380745.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**1380745.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**1380745.00** | Aggregate amount beneficially owned by each reporting person<br>**1380745.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**17.4%** | Percent of class represented by amount in Row (11)<br>**17.4%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** (1) Percent of class is calculated based on a total of 7,954,541 Shares outstanding, as provided by the Issuer on September 22, 2025.

| **CUSIP No.** | **09075X207** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Jack W. Schuler 2025 GRAT** | Name of reporting person<br>**Jack W. Schuler 2025 GRAT** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**ILLINOIS** | Citizenship or place of organization<br>**ILLINOIS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**750000.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**750000.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**750000.00** | Aggregate amount beneficially owned by each reporting person<br>**750000.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**9.4%** | Percent of class represented by amount in Row (11)<br>**9.4%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** (1) Percent of class is calculated based on a total of 7,954,541 Shares outstanding, as provided by the Issuer on September 22, 2025.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, par value $0.001 per share

**(b) Name of Issuer:**
BIODESIX INC

**(c) Address of Issuer's Principal Executive Offices:**
919 WEST DILLON RD, LOUISVILLE, CO, 80027

This Amendment No. 9 to Schedule 13D ("Amendment No. 9") is being filed by the undersigned, pursuant to section 240.13d-2(a), to amend and supplement the Schedule 13D filed with the U.S. Securities and Exchange Commission (the "SEC") on November 9, 2020 (the "Initial Schedule 13D"), as amended on January 28, 2022, on April 11, 2022, on November 23, 2022, on August 11, 2023, on April 9, 2024, on May 23, 2024, on May 20, 2025, and on September 3, 2025 (collectively, the "Schedule 13D"), with respect to the common stock, par value $0.001 per share (the "Shares"), of Biodesix, Inc. (the "Issuer" or the "Company"), whose principal executive offices are located at 919 West Dillon Rd., Louisville, Colorado 80027.

**Item 5. Interest in Securities of the Issuer**

**(a)**
Item 5(a)-(c) of the Schedule 13D is hereby amended and restated as follows:

As of the date hereof, Mr. Schuler may be deemed to beneficially own, in the aggregate, 2,151,480 Shares, which represents approximately 27.0% of the Shares outstanding.

Mr. Schuler's beneficial ownership consists of (i) 4,156 Shares that Mr. Schuler has the right to acquire upon exercise of options exercisable within 60 days of the date of this filing, (ii) 16,579  Shares that Mr. Schuler has the right to acquire upon settlement of vested RSUs within 60 days of the date of this filing, (iii) 1,380,745 Shares held by the Trust, representing approximately 17.4% of the Shares outstanding, and (iv) 750,000 Shares held by the GRAT, representing approximately 9.4% of the Shares outstanding.

The foregoing beneficial ownership percentages are based on a total of (i) 7,954,541 Shares outstanding, as provided by the Issuer on September 22, 2025, and, for purposes of calculating Mr. Schuler's beneficial ownership percentage, (ii) 20,735 Shares that Mr. Schuler has the right to acquire within 60 days of the date of this filing.

**(b)**
Mr. Schuler has the sole power to vote or direct the vote, and the sole power to dispose or direct the disposition of, the 20,735 Shares that Mr. Schuler has the right to acquire within 60 days of the date of this filing.

As sole trustee of the Trust, Mr. Schuler shares with the Trust the power to vote or direct the vote, and the power to dispose or direct the disposition of, the 1,380,745 Shares beneficially owned by the Trust.

As sole trustee of the GRAT, Mr. Schuler shares with the GRAT the power to vote or direct the vote, and the power to dispose or direct the disposition of, the 750,000 Shares beneficially owned by the GRAT.

**(c)**
The response to Item 3 of this Amendment No. 9 is incorporated by reference herein. Except as set forth in this Amendment No. 9, no transactions in the Shares have been effected by the Reporting Persons since the filing of Amendment No. 8 on September 3, 2025.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** SCHULER JACK W

**Signature:** /s/ Jack W. Schuler

**Name/Title:** Jack W. Schuler

**Date:** 09/23/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Jack W. Schuler Living Trust

**Signature:** /s/ Jack W. Schuler

**Name/Title:** Jack W. Schuler, Trustee

**Date:** 09/23/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Jack W. Schuler 2025 GRAT

**Signature:** /s/ Jack W. Schuler

**Name/Title:** Jack W. Schuler, Trustee

**Date:** 09/23/2025