ADPT insider reports 10b5-1 sales in June

ADPT insider sells shares under a 10b5-1 plan.

Rhea-AI Filing Summary

ADPT insider sells shares under a 10b5-1 plan. The filing lists three 10b5-1 dispositions by Susan Bobulsky: 11,000 shares on 06/04/2026, 5,000 shares on 06/11/2026, and 5,000 shares on 06/25/2026, with proceeds shown for each sale in the filing. The filing also lists 487 Restricted Stock Units (03/04/2022).

Insights

Corporate Governance Analyst

Routine 10b5-1 sales by an executive are reported; no new material disclosures.

The filing lists three dated sales executed under a 10b5-1 plan by Susan Bobulsky, with amounts and proceeds itemized for each date. These entries are transactional disclosures required by federal rules and do not, by themselves, change company fundamentals.

Timing and plan mechanics are shown as routine; subsequent filings may provide additional context on remaining holdings or related plan terms.

Key Figures

Sale on 06/04/2026: 11,000 shares Sale on 06/11/2026: 5,000 shares Sale on 06/25/2026: 5,000 shares +1 more

4 metrics

Sale on 06/04/2026 11,000 shares 10b5-1 sale, proceeds listed as $198,000

Sale on 06/11/2026 5,000 shares 10b5-1 sale, proceeds listed as $95,000

Sale on 06/25/2026 5,000 shares 10b5-1 sale, proceeds listed as $102,500

Restricted Stock Units 487 units Award date 03/04/2022

Key Terms

10b5-1, Restricted Stock Units, Form 144

3 terms

10b5-1 regulatory

"10b5-1 Sales for SUSAN BOBULSKY 1165 Eastlake Avenue"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Restricted Stock Units financial

"Restricted Stock Units | Issuer | 487 | 03/04/2022"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

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

What did ADPT insider Susan Bobulsky report in the Form 144?

She reported three 10b5-1 sales of common stock on 06/04/2026 (11,000 shares), 06/11/2026 (5,000 shares), and 06/25/2026 (5,000 shares), with proceeds listed for each transaction in the filing.

Were the sales made under a trading plan for ADPT (ADPT)?

Yes. The filing identifies the transactions as 10b5-1 sales, indicating the dispositions were executed under a pre-established trading plan rather than ad hoc open-market trades by the reporting person.

What security type and award date are noted in the filing for ADPT?

The filing shows Restricted Stock Units dated 03/04/2022 and a reported quantity of 487 in the securities section of the excerpt provided.

How are the proceeds from the June 2026 sales shown in the filing?

Each sale line in the filing includes a proceeds figure: $198,000 (06/04/2026), $95,000 (06/11/2026), and $102,500 (06/25/2026), reported alongside the share counts and dates.

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

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Accepted by SEC EDGAR 07/01/2026 - 04:16 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	487	10446.15	160044392	07/01/2026	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	03/04/2022	Restricted Stock Units	Issuer			487	03/04/2022	N/A

* 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	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	07/01/2026
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)