ADPT holder plans 5,000-share stock sale

Susan Bobulsky plans to sell 5,000 shares of ADPT common stock, with an estimated aggregate value of $114,500 and a planned sale date of July 16, 2026, through Morgan Stanley Smith Barney LLC Executive Financial Services.

Rhea-AI Filing Summary

Susan Bobulsky plans to sell 5,000 shares of ADPT common stock, with an estimated aggregate value of $114,500 and a planned sale date of July 16, 2026, through Morgan Stanley Smith Barney LLC Executive Financial Services. The shares come from previously exercised stock options, and recent 10b5-1 plan sales between June 4 and July 1, 2026 are also listed, including trades of 487, 5,000 and 11,000 shares.

Key Figures

Proposed shares to be sold: 5,000 shares Aggregate value of proposed sale: $114,500.00 Planned sale date: 07/16/2026 +4 more

7 metrics

Proposed shares to be sold 5,000 shares Common stock proposed for sale through Morgan Stanley Smith Barney LLC Executive Financial Services

Aggregate value of proposed sale $114,500.00 Estimated market value of 5,000 ADPT common shares to be sold

Planned sale date 07/16/2026 Date associated with the proposed 5,000-share sale on NASDAQ

Prior sale on 06/04/2026 11,000 shares for $198,000.00 10b5-1 sale listed in securities sold during the past 3 months

Prior sale on 06/11/2026 5,000 shares for $95,000.00 10b5-1 sale of ADPT common stock by Susan Bobulsky

Prior sale on 06/25/2026 5,000 shares for $102,500.00 10b5-1 sale listed for Susan Bobulsky

Prior sale on 07/01/2026 487 shares for $10,714.00 Most recent 10b5-1 sale in the three-month history table

Key Terms

Securities To Be Sold, Previously Exercised Stock Options, Securities Sold During The Past 3 Months, 10b5-1 Sales

4 terms

Securities To Be Sold regulatory

"144: Securities To Be Sold"

Previously Exercised Stock Options financial

"Common | 01/25/2022 | Previously Exercised Stock Options | Issuer"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

10b5-1 Sales regulatory

"10b5-1 Sales for SUSAN BOBULSKY 1165 Eastlake Avenue East Seattle WA 98109"

10b5-1 sales are pre-arranged stock-trading plans that let company insiders automatically buy or sell shares according to a fixed schedule or formula, even if they later learn confidential information. Think of it as setting up an automatic thermostat for trades: it creates a clear, documented path that can protect insiders from insider-trading accusations and gives investors a signal about predictable insider activity—though it can also simply be a way for insiders to diversify or raise cash.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stock sale does the ADPT disclosure for Susan Bobulsky describe?

It describes a planned sale of 5,000 shares of ADPT common stock, valued at $114,500, with a planned sale date of July 16, 2026. The transaction is to be executed through Morgan Stanley Smith Barney LLC Executive Financial Services.

How many ADPT shares is Susan Bobulsky planning to sell, and at what value?

Susan Bobulsky plans to sell 5,000 ADPT common shares with an estimated aggregate value of $114,500. This figure reflects the market value referenced in the disclosure for the proposed transaction through Morgan Stanley Smith Barney LLC Executive Financial Services.

When is the planned sale date for Susan Bobulsky’s ADPT shares?

The planned sale date for Susan Bobulsky’s ADPT shares is July 16, 2026. This date appears in the securities information section associated with the proposed sale of 5,000 common shares on the NASDAQ market.

What is the source of the ADPT shares Susan Bobulsky plans to sell?

The 5,000 ADPT common shares Susan Bobulsky plans to sell come from previously exercised stock options. The disclosure notes that these options were exercised on January 25, 2022, with the exercise price paid in cash to the issuer.

What recent 10b5-1 plan sales of ADPT stock are listed for Susan Bobulsky?

Recent 10b5-1 sales listed for Susan Bobulsky include 11,000 shares for $198,000 on June 4, 2026; 5,000 shares for $95,000 on June 11, 2026; 5,000 shares for $102,500 on June 25, 2026; and 487 shares for $10,714 on July 1, 2026.

On which market is the planned ADPT stock sale for Susan Bobulsky to occur?

The planned sale of 5,000 ADPT common shares for Susan Bobulsky is associated with the NASDAQ market. This is indicated in the securities information section alongside the planned sale date and the aggregate sale value of $114,500.

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

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Accepted by SEC EDGAR 07/16/2026 - 04:34 PM Learn about SEC filing dates

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	0001820885
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ADAPTIVE BIOTECHNOLOGIES CORPORATION
SEC File Number	001-38957
Address of Issuer	1165 Eastlake Avenue East Seattle WASHINGTON 98109
Phone	2066590067
Name of Person for Whose Account the Securities are To Be Sold	SUSAN BOBULSKY
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	Officer

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	5000	114500.00	160044392	07/16/2026	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	01/25/2022	Previously Exercised Stock Options	Issuer			5000	01/25/2022	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
10b5-1 Sales for SUSAN BOBULSKY 1165 Eastlake Avenue East Seattle WA 98109	Common	07/01/2026	487	10714.00
10b5-1 Sales for SUSAN BOBULSKY 1165 Eastlake Avenue East Seattle WA 98109	Common	06/25/2026	5000	102500.00
10b5-1 Sales for SUSAN BOBULSKY 1165 Eastlake Avenue East Seattle WA 98109	Common	06/11/2026	5000	95000.00
10b5-1 Sales for SUSAN BOBULSKY 1165 Eastlake Avenue East Seattle WA 98109	Common	06/04/2026	11000	198000.00

144: Remarks and Signature

Remarks
Date of Notice	07/16/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/16/2025
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	/s/ Susan Bobulsky
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)