Adaptive Biotechnologies exec granted 44,063 shares

Adaptive Biotechnologies Corp reported that its Chief People Officer, Francis Lo, acquired 44,063 shares of common stock on March 4, 2026 through a stock grant at no cost, described as a grant, award, or other acquisition.

Rhea-AI Filing Summary

Adaptive Biotechnologies Corp reported that its Chief People Officer, Francis Lo, acquired 44,063 shares of common stock on March 4, 2026 through a stock grant at no cost, described as a grant, award, or other acquisition. Following this equity award, Lo directly holds 360,041 common shares. The filing also notes an additional 2,500 common shares held indirectly through Lo’s spouse, You Jin Lee.

Insider Trade Summary

Grant/Award: 44,063 shares

Grant/Award 2 txns

Insider LO FRANCIS

Role Chief People Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	44,063	$0.00	$0.00
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 360,041 shares (Direct); Common Stock — 2,500 shares (Indirect, By You Jin Lee (spouse))

FAQ

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

What insider transaction did Adaptive Biotechnologies (ADPT) report for Francis Lo?

Adaptive Biotechnologies reported that Chief People Officer Francis Lo received a grant of 44,063 common shares on March 4, 2026. The shares were acquired at no cost as a stock award, not through an open-market purchase.

How many Adaptive Biotechnologies (ADPT) shares does Francis Lo hold after this Form 4?

After the reported grant, Francis Lo directly holds 360,041 shares of Adaptive Biotechnologies common stock. The filing also reports 2,500 additional shares held indirectly through Lo’s spouse, noted as ownership by You Jin Lee.

Was the Adaptive Biotechnologies (ADPT) insider transaction a purchase or an award?

The transaction was an equity award, not an open-market purchase. The Form 4 uses code “A” and describes the event as a grant, award, or other acquisition, with a per-share price of $0.00, indicating a compensatory grant.

What indirect ownership is disclosed for Francis Lo in Adaptive Biotechnologies (ADPT)?

The filing lists 2,500 common shares of Adaptive Biotechnologies as owned indirectly by Francis Lo through a spouse, identified as You Jin Lee. This is separate from Lo’s directly held shares and reflects family-related beneficial ownership.

What does transaction code “A” mean in the Adaptive Biotechnologies (ADPT) Form 4?

Transaction code “A” in the Form 4 indicates a grant, award, or other acquisition of securities. In this case, it reflects a stock grant of 44,063 common shares to Chief People Officer Francis Lo, received without paying a purchase price.

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

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Accepted by SEC EDGAR 03/06/2026 - 07:35 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

LO FRANCIS

(Last) (First) (Middle)

C/O ADAPTIVE BIOTECHNOLOGIES CORPORATION

1165 EASTLAKE AVENUE EAST

(Street)

SEATTLE WA 98109

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Adaptive Biotechnologies Corp [ ADPT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief People Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/04/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/04/2026		A		44,063	A	$0	360,041	D
Common Stock								2,500	I	By You Jin Lee (spouse)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Francis Lo by Kyle Piskel, Attorney-in-Fact	03/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.