AnaptysBio insider files Form 144 to sell 10,231 shares on NASDAQ

Rhea-AI Filing Summary

AnaptysBio, Inc. (ANAB) Form 144 shows an intended sale of 10,231 common shares with an aggregate market value of $200,712.78 to be executed on or about 08/08/2025 through Morgan Stanley Smith Barney on NASDAQ. The filing states these shares were acquired by a stock option exercise on 08/08/2025 with payment in cash. The notice also discloses prior sales by the same person, HOLLINGS C RENTON: 20,925 shares sold 07/02/2025 for $493,189.70 and 3,015 shares sold 06/18/2025 for $72,269.55. The signer represents there is no undisclosed material adverse information.

Positive

• Form 144 filed and details disclosed, including broker, sale date, and aggregate market value, demonstrating regulatory compliance.
• Securities were acquired via stock option exercise with cash payment as explicitly stated in the filing.

Negative

• Insider selling reported: HOLLINGS C RENTON sold 20,925 shares on 07/02/2025 for $493,189.70 and 3,015 shares on 06/18/2025 for $72,269.55.
• Planned sale of 10,231 shares valued at $200,712.78 is scheduled for 08/08/2025, indicating continued insider monetization.

Insights

Securities Analyst

TL;DR Insider exercised options and plans a modest sale; filing details are disclosed and likely immaterial to capitalization.

The filing documents a stock option exercise that created 10,231 shares, immediately slated for sale via Morgan Stanley Smith Barney on NASDAQ for $200,712.78. Given the reported shares outstanding of 27,996,963, the planned sale represents a very small fraction of total capitalization (approximately 0.037%). The filing also lists two recent sales by the same person on 07/02/2025 and 06/18/2025, showing prior monetization activity. For investors, the item is transparent but not likely market-moving based on size alone.

Corporate Governance Expert

TL;DR Proper Form 144 disclosure and a signed representation reduce regulatory risk; multiple sales by the same individual warrant attention.

The notice includes required disclosures: acquisition method (stock option exercise), payment method (cash), broker (Morgan Stanley Smith Barney) and an affirmation that no material nonpublic information is known. The form also records recent sales by HOLLINGS C RENTON on 07/02/2025 and 06/18/2025. From a compliance standpoint, the filing appears complete; governance review would note repeated insider sales but the absolute sizes disclosed are modest relative to total shares outstanding.

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
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	10231	200712.78	27996963	08/08/2025	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	08/08/2025	Stock Option Exercise	Issuer			10231	08/08/2025	Cash

* 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
HOLLINGS C RENTON 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	07/02/2025	20925	493189.70
HOLLINGS C RENTON 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	06/18/2025	3015	72269.55

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the ANAB Form 144 disclose?

The filing discloses a planned sale of 10,231 common shares valued at $200,712.78 to be sold on or about 08/08/2025 via Morgan Stanley Smith Barney on NASDAQ.

Who is the seller named in the filing for ANAB?

The filing identifies HOLLINGS C RENTON as the person associated with the disclosed sales.

How were the 10,231 ANAB shares acquired?

The shares were acquired by a stock option exercise on 08/08/2025 and payment was made in cash, as stated in the form.

Were there prior sales by the same person in the past three months?

Yes. The form lists sales of 20,925 shares on 07/02/2025 for $493,189.70 and 3,015 shares on 06/18/2025 for $72,269.55.

On which exchange will the ANAB shares be sold?

The planned sale is listed to occur on NASDAQ through Morgan Stanley Smith Barney.