ADPT insider sale notice: Francis Lo reports share disposals

ADPT insider filing: proposed resale of Common Stock by Francis Lo under Rule 144 and 10b5-1 plan.

Rhea-AI Filing Summary

ADPT insider filing: proposed resale of Common Stock by Francis Lo under Rule 144 and 10b5-1 plan. The filing lists multiple recent sales by Francis Lo, including 38,074 shares on 03/05/2026 for $574,536.66 and earlier 10b5-1 sales of 79,590 shares on 01/12/2026 for $1,411,393.35. The record also lists 30,593 Restricted Stock Units dated 03/04/2025.

Insights

Securities Compliance Analyst

Rule 144 notice showing multiple 10b5-1 dispositions by Francis Lo.

The excerpt documents scheduled dispositions under a 10b5-1 plan with discrete sale dates and dollar proceeds: $574,536.66 on 03/05/2026 and $1,411,393.35 on 01/12/2026.

These entries are procedural notices of resale activity and include a separate line for 30,593 Restricted Stock Units dated 03/04/2025. Timing and cash‑flow mechanics beyond the listed proceeds are not detailed in the excerpt.

FAQ

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

What sales does the ADPT Form 144 list for Francis Lo?

It lists multiple sales including 38,074 shares on 03/05/2026 for $574,536.66. It also shows 79,590 shares on 01/12/2026 for $1,411,393.35 and other dated 10b5-1 sales.

Does the filing indicate these were executed under a 10b5-1 plan for ADPT?

Yes. The entries are labeled as 10b5-1 Sales for Francis Lo, indicating the reported dispositions used a pre-arranged trading plan as stated in the excerpt.

Are any restricted securities mentioned in the ADPT excerpt?

The excerpt shows 30,593 Restricted Stock Units dated 03/04/2025. The line identifies these RSUs but does not state whether they were sold or withheld in these transactions.

What proceeds are reported for the largest listed sale in the excerpt?

The largest proceeds shown are $1,773,381.19 corresponding to 113,890 shares on 12/15/2025 as listed in the excerpt. Each sale row pairs share count with dollar proceeds.

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

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Accepted by SEC EDGAR 03/11/2026 - 04:42 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	0001780660
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	FRANCIS LO
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	30593	444210.36	153981561	03/11/2026	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	03/04/2025	Restricted Stock Units	Issuer			30593	03/04/2025	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
FRANCIS LO 1165 Eastlake Avenue East Seattle WA 98109	Common	03/05/2026	38074	574536.66
10b5-1 Sales for FRANCIS LO 1165 Eastlake Avenue East Seattle WA 98109	Common	01/12/2026	79590	1411393.35
10b5-1 Sales for FRANCIS LO 1165 Eastlake Avenue East Seattle WA 98109	Common	01/02/2026	3125	50247.81
10b5-1 Sales for FRANCIS LO 1165 Eastlake Avenue East Seattle WA 98109	Common	12/22/2025	4394	76874.14
10b5-1 Sales for FRANCIS LO 1165 Eastlake Avenue East Seattle WA 98109	Common	12/15/2025	113890	1773381.19

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units during the period of 03/04/2025 through 03/04/2026.
Date of Notice	03/11/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	09/15/2025
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/ Francis Lo
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)