[Form 4] BIODESIX INC Insider Trading Activity

Rhea-AI Filing Summary

Biodesix (BDSX) reported an insider transaction by its CFO, Secretary & Treasurer, Robin Harper Cowie. On 11/10/2025, 158 shares of Common Stock were acquired upon the vesting of restricted stock units, adjusted for the one-for-twenty reverse stock split effective September 15, 2025. To cover taxes from the vesting, 50 shares were sold at $7.62. Following these transactions, the reporting person beneficially owned 13,147 shares directly.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Cowie Robin Harper

(Last) (First) (Middle)

919 WEST DILLON RD

(Street)

LOUISVILLE CO 80027

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
BIODESIX INC [ BDSX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CFO, Sec'y & Treasurer

3. Date of Earliest Transaction (Month/Day/Year)
11/10/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/10/2025		M		158(1)	A	(2)	13,197(1)(3)	D
Common Stock	11/10/2025		S(4)		50	D	$7.62	13,147	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(2)	11/10/2025		M			158(1)	(5)	(5)	Common Stock	158(1)	$0	157(1)	D

Explanation of Responses:

1. These numbers have been adjusted to reflect the one-for-twenty reverse stock split effective September 15, 2025 (the "Reverse Stock Split").

2. Each restricted stock unit (the "RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

3. Includes 500 shares of the Issuer's Common Stock, as adjusted for the Reverse Stock Split, purchased under the Issuer's Employee Stock Purchase Plan on September 2, 2025.

4. These shares of the Issuer's Common Stock were sold automatically to cover taxes upon the vesting of RSUs.

5. These RSUs vest in a series of sixteen successive quarterly installments measured from February 8, 2022, generally subject to the Reporting Person's continued service with the Issuer, and have no expiration date.

	/s/ Robin Harper Cowie	11/13/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did BDSX disclose in this Form 4?

The CFO acquired 158 shares upon RSU vesting and sold 50 shares at $7.62 to cover taxes on 11/10/2025.

How many BDSX shares does the reporting person now own?

Following the transactions, the reporting person directly owns 13,147 shares.

What was the nature of the share sale in the filing?

The 50-share sale at $7.62 was executed automatically to cover taxes upon RSU vesting.

Were the share figures adjusted for any corporate actions?

Yes. All figures reflect the one-for-twenty reverse stock split effective September 15, 2025.

What do the RSUs represent for BDSX?

Each RSU represents a right to receive one share of BDSX Common Stock upon vesting.

How do the RSUs vest for the reporting person?

They vest in sixteen quarterly installments measured from February 8, 2022, subject to continued service.

Was there any recent share purchase under an employee plan?

Yes, the holdings include 500 shares purchased under the Employee Stock Purchase Plan on September 2, 2025.