AnaptysBio director granted 11,250 RSUs

Hughes Owen reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Hughes Owen reported acquisition or exercise transactions in this Form 4 filing.

ANAPTYSBIO director Owen Hughes received a grant of restricted stock units (RSUs). On May 11, 2026, he was awarded 11,250 RSUs, each representing a contingent right to receive one share of common stock for no cash payment upon settlement.

One third of these RSUs will vest on May 11, 2027, with the remaining two thirds vesting in equal annual installments, provided he continues to serve the company on each vesting date. After this grant, his reported RSU holdings from this award total 11,250 units held directly.

Insider Trade Summary

Grant/Award: 11,250 shares

Grant/Award 1 txn

Insider Hughes Owen

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	11,250	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 11,250 contracts (Direct)

Footnotes (2)

1. F1. Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.
2. F2. 1/3 of the RSUs shall vest on May 11, 2027 and 1/3 of the RSUs shall vest in equal annual installments until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Key Figures

RSU grant size: 11,250 RSUs Exercise/settlement price: $0.00 per share Underlying common shares: 11,250 shares +2 more

5 metrics

RSU grant size 11,250 RSUs Grant awarded on May 11, 2026

Exercise/settlement price $0.00 per share RSUs settle for no consideration

Underlying common shares 11,250 shares Each RSU equals one common share

Post-transaction RSUs from award 11,250 units Total RSUs following this grant

Initial vesting date May 11, 2027 One third of RSUs vest on this date

Key Terms

Restricted Stock Units, RSU, vest, contingent right

4 terms

Restricted Stock Units financial

"Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock"

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.

RSU financial

"Each restricted stock unit ("RSU") represents a contingent right to receive 1 share"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

vest financial

"1/3 of the RSUs shall vest on May 11, 2027 and 1/3 of the RSUs shall vest in equal annual installments"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

contingent right financial

"represents a contingent right to receive 1 share of the Issuer's Common Stock"

FAQ

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

What did ANAB director Owen Hughes report in this Form 4 filing?

Owen Hughes reported receiving a grant of 11,250 restricted stock units. These RSUs are a form of equity compensation that convert into common shares at no cash cost when they settle, subject to the vesting schedule and continued service.

How many restricted stock units did Owen Hughes receive from AnaptysBio (ANAB)?

He received 11,250 restricted stock units. Each RSU represents a right to receive one share of AnaptysBio common stock upon settlement for no consideration, assuming vesting conditions are met and he continues providing service through the vesting dates.

When do Owen Hughes’ ANAB RSUs vest according to the Form 4?

One third of the RSUs will vest on May 11, 2027. The remaining two thirds will vest in equal annual installments after that date, conditioned on Owen Hughes continuing to provide service to AnaptysBio on each applicable vesting date.

What does each ANAB restricted stock unit represent in this Form 4?

Each restricted stock unit represents a contingent right to receive one share of AnaptysBio common stock. The units settle for no cash payment once vested, meaning the director receives shares if the time-based vesting and service conditions are satisfied.

Is Owen Hughes’ ANAB RSU award a purchase or compensation grant?

The RSU award is a compensation grant, not a market purchase. It is coded as a grant or award acquisition, carries a zero exercise price, and provides stock-based compensation that converts into common shares over time as vesting requirements are met.

How many AnaptysBio RSUs does Owen Hughes hold after this reported transaction?

Following this grant, the Form 4 shows he holds 11,250 restricted stock units from this award. These units are held directly and will convert into an equal number of common shares as they vest and settle under the disclosed vesting schedule and conditions.

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

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Accepted by SEC EDGAR 05/13/2026 - 05:50 PM EDT 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^*

Hughes Owen

(Last) (First) (Middle)

10770 WATERIDGE CIRCLE, SUITE 210

(Street)

SAN DIEGO CALIFORNIA 92121

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ANAPTYSBIO, INC [ ANAB ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/11/2026

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

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

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

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

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
Restricted Stock Units	(1)	05/11/2026		A		11,250		(2)	(2)	Common Stock	11,250	$0	11,250	D

Explanation of Responses:

1. Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

2. 1/3 of the RSUs shall vest on May 11, 2027 and 1/3 of the RSUs shall vest in equal annual installments until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

	/s/ Dan Faga, Attorney-in-fact	05/13/2026
	** 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.
* Form 4: SEC 1474 (03-26)