ADPT insider plans potential common stock sale

ADPT reports that Harlan Robins has filed a notice to potentially sell common stock through Goldman Sachs & Co. LLC, with an anticipated sale date of July 21, 2026 on NASD.

Rhea-AI Filing Summary

ADPT reports that Harlan Robins has filed a notice to potentially sell common stock through Goldman Sachs & Co. LLC, with an anticipated sale date of July 21, 2026 on NASD. The securities information section lists figures of 492,400, 11,118,392 and 160,044,392 tied to this common stock entry.

The filing also lists planned sales sourced from equity compensation: common stock acquired on March 10, 2026 as compensation via performance awards in the amount of 207,600, and common stock acquired on February 7, 2018 via stock options in the amount of 284,800 through a cashless exercise/same-day sale structure. In the past three months, entries show common stock sales on June 15, June 16 and July 2, 2026 in amounts including 100,000, 6,160, 136,240 and 250,000.

Key Figures

Common stock related figure: 492,400 Additional common stock figure: 11,118,392 Further common stock figure: 160,044,392 +4 more

7 metrics

Common stock related figure 492,400 Listed in the common stock securities information entry tied to Goldman Sachs & Co. LLC

Additional common stock figure 11,118,392 Appears in the same common stock securities information line as 492,400

Further common stock figure 160,044,392 Also listed in the common stock securities information line with NASD reference

Performance awards amount 207,600 Common stock acquired as compensation via performance awards dated March 10, 2026

Stock options amount 284,800 Common stock acquired as compensation via stock options dated February 7, 2018

Past sale entry amount 100,000 Common stock sale entry dated June 15, 2026 in the past three months section

Largest past sale entry amount 250,000 Common stock sale entry dated July 2, 2026 in the past three months section

Key Terms

Form 144, Performance Awards, Stock Options, cashless exercise / same-day sale

4 terms

Form 144 regulatory

"144: Securities Information Common Stock | Goldman Sachs & Co. LLC"

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.

Performance Awards financial

"Acquired as compensation -- Performance Awards | The Issuer"

Stock Options financial

"Acquired as compensation -- Stock Options | The Issuer"

Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.

cashless exercise / same-day sale financial

"Compensation -- Cashless exercise / same-day sale"

FAQ

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

What does the ADPT Form 144 filing by Harlan Robins disclose?

It discloses a planned sale of common stock associated with Harlan Robins, including details of potential sales through Goldman Sachs & Co. LLC and related prior equity-compensation awards and recent stock sale entries.

How many ADPT-related common stock units are tied to performance awards in this filing?

The filing lists 207,600 units of common stock associated with compensation described as performance awards, dated March 10, 2026, as part of the securities to be sold section connected to Harlan Robins.

What stock option-related common stock amount appears in the ADPT Form 144?

The document lists 284,800 units of common stock acquired on February 7, 2018 as compensation via stock options, described as involving a cashless exercise and same-day sale mechanism.

Which broker is referenced for the contemplated ADPT stock sale?

The filing references Goldman Sachs & Co. LLC, with its New York address, in connection with the common stock entry that also includes numerical figures and an anticipated transaction date of July 21, 2026 on NASD.

What recent ADPT common stock sale entries are reported for Harlan Robins?

Entries under securities sold during the past three months show common stock sales on June 15, June 16, and July 2, 2026, in amounts including 100,000, 6,160, 136,240 and 250,000, each paired with corresponding monetary figures.

What large numerical figures are associated with ADPT common stock in this Form 144?

For the common stock tied to Goldman Sachs & Co. LLC, the filing lists 492,400, 11,118,392 and 160,044,392, along with an anticipated date of July 21, 2026 and an NASD listing reference.

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

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Accepted by SEC EDGAR 07/21/2026 - 05:20 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	492400	11118392	160044392	07/21/2026	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	03/10/2026	Acquired as compensation -- Performance Awards	The Issuer			207600	03/10/2026	Compensation
Common Stock	02/07/2018	Acquired as compensation -- Stock Options	The Issuer			284800	02/07/2018	Compensation -- Cashless exercise / same-day sale

* 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	07/02/2026	136240	2936094.62
Harlan Robins 1165 Eastlake Avenue East Seattle WA 98109	Common Stock	07/02/2026	250000	5565550

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	07/21/2026
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)