CareDx (NASDAQ: CDNA) insider Peter Maag plans 27,332-share stock sale after option exercise

Rhea-AI Filing Summary

CareDx, Inc. insider Peter Maag filed to sell shares of Common Stock through Morgan Stanley Smith Barney LLC’s Executive Financial Services program. The notice covers 27,332 shares tied to a stock option exercise dated August 7, 2026, with sales on NASDAQ. It also lists prior three‑month sales of 46,963 shares on August 5, 2026 and 75,653 shares on August 4, 2026.

Key Figures

Planned shares to be sold: 27,332 shares Prior sale on August 5, 2026: 46,963 shares Value of August 5, 2026 sale: $2,178,945.34 +3 more

6 metrics

Planned shares to be sold 27,332 shares Common Stock to be sold on NASDAQ related to stock option exercise dated August 7, 2026

Prior sale on August 5, 2026 46,963 shares Common Stock sold during the past three months by Peter Maag

Value of August 5, 2026 sale $2,178,945.34 Dollar amount listed for 46,963 shares of Common Stock sold on August 5, 2026

Prior sale on August 4, 2026 75,653 shares Common Stock sold during the past three months by Peter Maag

Value of August 4, 2026 sale $3,576,851.19 Dollar amount listed for 75,653 shares of Common Stock sold on August 4, 2026

Broker share identifier 27,332 shares Common Stock position listed with Morgan Stanley Smith Barney LLC Executive Financial Services

Key Terms

Stock Option Exercise, Executive Financial Services, Common Stock, Securities Sold During The Past 3 Months

4 terms

Stock Option Exercise financial

"Common | 08/07/2026 | Stock Option Exercise | Issuer"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Executive Financial Services financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

Common Stock financial

"PETER MAAG ... | Common | 08/05/2026 | 46963 | 2178945.34"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

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Available on EDGAR 08/07/2026 - 04:53 PM Accepted by SEC EDGAR 08/07/2026 - 04:52 PM Learn about SEC filing dates

FAQ

What share sale is Peter Maag planning according to the CDNA Form 144 filing?

Peter Maag plans to sell 27,332 shares of CareDx Common Stock. The shares relate to a stock option exercise dated August 7, 2026, with sales to be executed on NASDAQ through Morgan Stanley Smith Barney LLC.

Which broker is handling Peter Maag’s planned CDNA stock sale?

The planned sale is handled by Morgan Stanley Smith Barney LLC Executive Financial Services. The broker’s office is at 1 New York Plaza, 8th Floor, New York, NY 10004, and the trades are indicated for execution on NASDAQ.

What prior CDNA share sales by Peter Maag are disclosed in this Form 144?

The filing discloses prior three‑month sales of 46,963 shares of Common Stock on August 5, 2026 and 75,653 shares on August 4, 2026. These transactions are listed under securities sold during the past three months.

How much value is associated with Peter Maag’s recent CDNA stock sales?

The August 5, 2026 sale of 46,963 shares is listed at $2,178,945.34, and the August 4, 2026 sale of 75,653 shares is listed at $3,576,851.19. These figures reflect the dollar amounts reported for those transactions.

What transaction type is linked to the upcoming CDNA share sale by Peter Maag?

The upcoming sale of 27,332 shares is linked to a Stock Option Exercise. The issuer is identified as the source of the options, and the transaction is indicated for cash on August 7, 2026.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	27332	1252491.63	51734223	08/07/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/07/2026	Stock Option Exercise	Issuer			27332	08/07/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
PETER MAAG 8000 Marina Boulevard, Brisbane CA 94005	Common	08/05/2026	46963	2178945.34
PETER MAAG 8000 Marina Boulevard, Brisbane CA 94005	Common	08/04/2026	75653	3576851.19

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)