ADPT Form 144: Insider sales of 116,160 shares

ADPT: Form 144 notice reporting proposed and recent sales of Common Stock by Harlan Robins.

Rhea-AI Filing Summary

ADPT: Form 144 notice reporting proposed and recent sales of Common Stock by Harlan Robins. The filing lists multiple grant/award acquisition entries (Restricted Stock Units and Performance Awards) with grant dates from 03/04/2021 through 03/07/2026. It discloses securities sold in the past three months: 100,000 shares on 06/15/2026 (value shown 1,737,460), 6,160 shares on 06/16/2026 (value shown 110,945.91), and 10,000 shares on 04/08/2026 (value shown 148,323.94).

Insights

Corporate Governance Analyst

Form 144 lists recent insider dispositions and prior compensation grants.

The filing documents a series of historic acquisitions of Common Stock via Restricted Stock Units and Performance Awards with grant dates between 03/04/2021 and 03/07/2026. It also reports specific share sales by Harlan Robins in the past three months: 100,000, 6,160, and 10,000 shares with the exact values shown in the excerpt.

These entries are compliance disclosures of trading activity; cash‑flow treatment and any planned future sales are not stated in the provided excerpt. Subsequent filings may disclose additional transactions or remaining holdings.

Key Figures

Sale on 06/15/2026: 100,000 shares Sale on 06/16/2026: 6,160 shares Sale on 04/08/2026: 10,000 shares +3 more

6 metrics

Sale on 06/15/2026 100,000 shares sale date 06/15/2026; value shown 1,737,460

Sale on 06/16/2026 6,160 shares sale date 06/16/2026; value shown 110,945.91

Sale on 04/08/2026 10,000 shares sale date 04/08/2026; value shown 148,323.94

RSU acquired 03/04/2024 48,049 shares acquired as compensation — Restricted Stock Units on 03/04/2024

RSU acquired 03/06/2023 55,766 shares acquired as compensation — Restricted Stock Units on 03/06/2023

Performance Awards 03/07/2026 (example) 7,206 shares acquired as compensation — Performance Awards on 03/07/2026

Key Terms

Restricted Stock Units, Performance Awards, Form 144

3 terms

Restricted Stock Units financial

"Acquired as compensation -- Restricted Stock Units | The Issuer | 03/06/2023"

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.

Performance Awards financial

"Acquired as compensation -- Performance Awards | The Issuer | 03/07/2026"

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 does ADPT's Form 144 say about recent insider sales?

The filing reports insider sales by Harlan Robins of 100,000 shares on 06/15/2026, 6,160 shares on 06/16/2026, and 10,000 shares on 04/08/2026, with the values shown alongside each sale in the excerpt.

Which types of equity awards are listed in the ADPT Form 144?

The excerpt lists equity acquired as compensation including Restricted Stock Units and Performance Awards with grant dates between 03/04/2021 and 03/07/2026, and multiple award share counts shown.

Does the Form 144 state who receives proceeds from the sales?

The provided excerpt does not state proceeds recipients beyond showing values adjacent to sale entries; it lists the seller as Harlan Robins and includes the sale amounts and values for each disclosed trade.

Are the grant dates and quantities of awarded shares included in the filing?

Yes. The filing lists specific award grant dates (for example 03/04/2021, 03/06/2023, 03/07/2026) and corresponding share counts for multiple RSU and performance award entries in the excerpt.

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

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Accepted by SEC EDGAR 07/02/2026 - 05:43 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	0001780851
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	1-206-659-0067
Name of Person for Whose Account the Securities are To Be Sold	Harlan Robins
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 Stock	Goldman Sachs & Co. LLC 200 West Street New York NY 10282	386240	8184425.6	160044392	07/02/2026	NASD

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 Stock	03/07/2026	Acquired as compensation -- Performance Awards	The Issuer			7206	03/07/2026	Compensation
Common Stock	03/07/2026	Acquired as compensation -- Performance Awards	The Issuer			6205	03/07/2026	Compensation
Common Stock	03/07/2026	Acquired as compensation -- Performance Awards	The Issuer			3561	03/07/2026	Compensation
Common Stock	03/07/2026	Acquired as compensation -- Performance Awards	The Issuer			22535	03/07/2026	Compensation
Common Stock	03/07/2026	Acquired as compensation -- Performance Awards	The Issuer			30434	03/07/2026	Compensation
Common Stock	03/07/2026	Acquired as compensation -- Performance Awards	The Issuer			18274	03/07/2026	Compensation
Common Stock	03/10/2026	Acquired as compensation -- Performance Awards	The Issuer			13457	03/10/2026	Compensation
Common Stock	03/06/2023	Acquired as compensation -- Restricted Stock Units	The Issuer			46021	03/06/2023	Compensation
Common Stock	03/04/2021	Acquired as compensation -- Restricted Stock Units	The Issuer			17170	03/04/2021	Compensation
Common Stock	03/04/2022	Acquired as compensation -- Restricted Stock Units	The Issuer			61779	03/04/2022	Compensation
Common Stock	03/04/2021	Acquired as compensation -- Restricted Stock Units	The Issuer			11548	03/04/2021	Compensation
Common Stock	03/04/2022	Acquired as compensation -- Restricted Stock Units	The Issuer			44235	03/04/2022	Compensation
Common Stock	03/06/2023	Acquired as compensation -- Restricted Stock Units	The Issuer			55766	03/06/2023	Compensation
Common Stock	03/04/2024	Acquired as compensation -- Restricted Stock Units	The Issuer			48049	03/04/2024	Compensation

* 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
Harlan Robins 1165 Eastlake Avenue East Seattle WA 98109	Common Stock	06/15/2026	100000	1737460
Harlan Robins 1165 Eastlake Avenue East Seattle WA 98109	Common Stock	06/16/2026	6160	110945.91
Harlan Robins 1165 Eastlake Avenue East Seattle WA 98109	Common Stock	04/08/2026	10000	148323.94

144: Remarks and Signature

Remarks	The sales of shares set forth herein are made in connection with a selling plan dated 3/13/2026, that is intended to comply with Rule 10b501(c).
Date of Notice	07/02/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/13/2026
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	Goldman Sachs & Co. LLC on behalf of Harlan Robins
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)