AnaptysBio director Susannah Gray files Form 3

ANAPTYSBIO, INC director Susannah Gray filed an initial Form 3 reporting her status as a director of the company.

Accepted by SEC EDGAR 04/03/2026 - 04:00 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

ANAPTYSBIO, INC director Susannah Gray filed an initial Form 3 reporting her status as a director of the company. The filing does not list any reportable transactions or equity holdings, indicating this is a baseline disclosure of insider status rather than a trading event.

Key Terms

Form 3, reportingPersons, issuerTicker

3 terms

Form 3 regulatory

"INSIDER FILING DATA (Form 3):"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

reportingPersons regulatory

""reportingPersons": ["

issuerTicker financial

""issuerTicker": "ANAB""

FAQ

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

What does the ANAB Form 3 filing for Susannah Gray report?

The Form 3 for ANAPTYSBIO, INC (ANAB) reports that Susannah Gray is a director of the company. It serves as an initial statement of insider status and does not show any reportable transactions or holdings.

Does the ANAB Form 3 for Susannah Gray show any stock transactions?

No, the Form 3 for Susannah Gray at ANAPTYSBIO, INC shows zero buy, sell, acquire, or dispose transactions. The transaction summary counts are all zero, indicating no reported trading activity in this filing.

Are there any derivative securities reported on Susannah Gray’s ANAB Form 3?

No derivative securities are reported for Susannah Gray in this Form 3. The derivativeSummary is empty and the exercise-related counts in the transaction summary are all zero, suggesting no listed options or similar instruments in this filing.

What insider role does Susannah Gray have at ANAPTYSBIO, INC (ANAB)?

The Form 3 identifies Susannah Gray as a director of ANAPTYSBIO, INC. The filing flags her as a director, with no officer title and not as a ten percent owner, establishing her formal insider role with the company.

Does the ANAB Form 3 include any gifts or tax-related share withholdings?

No, the Form 3 transaction summary for ANAPTYSBIO, INC lists giftCount and taxWithholdingCount as zero. This means there are no reported gifts, tax-withholding dispositions, or similar non-market share movements in this filing.

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

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SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

GRAY SUSANNAH

(Last) (First) (Middle)

10770 WATERIDGE CIRCLE, SUITE 210

(Street)

SAN DIEGO CALIFORNIA 92121

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/26/2026

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

3a. Foreign Trading Symbol

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

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

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

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Eric Loumeau, Attorney-in-Fact	04/03/2026
	** 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 5 (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 3: SEC 1473 (03-26)