CareDx (CDNA) director Bickerstaff sells 20,000 shares at $46.285

Rhea-AI Filing Summary

CareDx, Inc. director George Bickerstaff sold 20,000 shares of Common Stock on August 5, 2026 in a non-derivative sale transaction. The shares were sold at a weighted average price of $46.285 per share, across trades from $46.14 to $47.06, leaving him directly holding 134,061 shares.

Insider Trade Summary

Net Seller: 20,000 shares

Net Sell 1 txn

Insider Bickerstaff George

Role Director

Sold 20,000 shs ($926K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	20,000	$46.285	$926K

Holdings After Transaction: Common Stock — 134,061 shares (Direct)

Footnotes (1)

1. F1. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.14 to $47.06 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Key Figures

Shares sold: 20,000 shares Weighted average sale price: $46.285 per share Sale price range: $46.14–$47.06 per share +1 more

4 metrics

Shares sold 20,000 shares Common Stock sale on August 5, 2026

Weighted average sale price $46.285 per share Reported price for the August 5, 2026 Common Stock sale

Sale price range $46.14–$47.06 per share Prices of multiple transactions comprising the reported sale

Shares held after sale 134,061 shares Direct Common Stock ownership following the transaction

Key Terms

weighted average price, open market or private transaction, direct_or_indirect

3 terms

weighted average price financial

"The reported price in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open market or private transaction financial

"Sale in open market or private transaction"

direct_or_indirect financial

"direct_or_indirect field is reported as "D" for direct ownership"

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/06/2026 - 04:11 PM Accepted by SEC EDGAR 08/06/2026 - 04:10 PM Learn about SEC filing dates

FAQ

What insider transaction did CareDx (CDNA) report for George Bickerstaff?

George Bickerstaff, a director of CareDx, sold 20,000 shares of Common Stock on August 5, 2026. This was a non-derivative transaction in which he disposed of existing shares rather than exercising options or converting derivative securities.

At what price were the CareDx (CDNA) shares sold in this Form 4?

The reported sale used a weighted average price of $46.285 per share. Individual trades occurred in multiple transactions within a price range from $46.14 to $47.06 per share, inclusive, according to the transaction footnote.

How many CareDx (CDNA) shares does George Bickerstaff hold after the sale?

After selling 20,000 shares, George Bickerstaff directly holds 134,061 shares of CareDx Common Stock. This figure reflects his reported direct ownership position immediately following the August 5, 2026 sale transaction.

What type of transaction code is shown for the CareDx (CDNA) insider trade?

The transaction is coded as “S”, described as a sale in an open market or private transaction. This code indicates a disposition of shares, rather than an acquisition, option exercise, gift, or other non-sale event.

What security and ownership type are involved in this CareDx (CDNA) Form 4?

The report covers Common Stock of CareDx, Inc. The transaction is listed with ownership type direct, meaning the shares are held in Bickerstaff’s own name rather than through an indirect entity such as a trust or partnership.

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^*

Bickerstaff George

(Last) (First) (Middle)

C/O CAREDX, INC.

8000 MARINA BLVD, 4TH FLOOR

(Street)

BRISBANE CALIFORNIA 94005

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
CareDx, Inc. [ CDNA ]

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/05/2026

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

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

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

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	08/05/2026		S		20,000	D	$46.285(1)	134,061	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

Explanation of Responses:

1. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.14 to $47.06 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

	/s/ Jeffrey Adam Novack, Attorney-in-Fact	08/06/2026
	** 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.
* Form 4: SEC 1474 (03-26)