Issuer insider plans sale of 2,210 shares

A holder of the issuer’s common stock has filed a Rule 144 notice to sell 2,210 shares through Morgan Stanley Smith Barney, with an aggregate market value of $99,914.10.

Accepted by SEC EDGAR 01/09/2026 - 07:12 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

A holder of the issuer’s common stock has filed a Rule 144 notice to sell 2,210 shares through Morgan Stanley Smith Barney, with an aggregate market value of $99,914.10. The filing lists 27,688,470 shares of common stock outstanding and targets an approximate sale date of 01/08/2026 on the NASDAQ market.

The 2,210 shares were acquired on 01/08/2026 as restricted stock units from the issuer, paid for in cash. Over the prior three months, the seller, identified as Eric J. Loumeau, reported multiple sales of the issuer’s common stock, including several transactions of 10,000 shares in December 2025 and additional sales in January 2026, each with disclosed gross proceeds.

FAQ

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

How many ANAB shares are covered by this Rule 144 sale notice?

The notice covers the planned sale of 2,210 shares of the issuer’s common stock, with an aggregate market value of $99,914.10 as stated in the filing.

When are the 2,210 ANAB shares expected to be sold and on which exchange?

The approximate date of sale listed is 01/08/2026, and the shares are to be sold on the NASDAQ exchange.

How were the 2,210 ANAB shares being sold under Rule 144 acquired?

The filing states the 2,210 shares were acquired on 01/08/2026 as restricted stock units from the issuer, with the purchase price paid in cash.

Who is the seller in this ANAB Rule 144 filing and which broker is used?

The seller is identified as Eric J. Loumeau, and the broker listed for the transaction is Morgan Stanley Smith Barney LLC Executive Financial Services at 1 New York Plaza, New York, NY 10004.

What prior ANAB share sales has the seller reported in the last 3 months?

Over the past three months, Eric J. Loumeau reported multiple sales of the issuer’s common stock, including 10,000-share transactions on 12/22/2025 and 12/17/2025, a 12,500-share sale on 12/16/2025, and several smaller sales in December 2025 and January 2026, each with disclosed gross proceeds.

How many ANAB common shares are outstanding according to this Rule 144 notice?

The filing reports that 27,688,470 shares of the issuer’s common stock were outstanding, providing a baseline share count alongside the planned Rule 144 sale.

What does a Rule 144 filing like this indicate for ANAB stock?

A Rule 144 filing indicates that a holder of restricted or control securities of the issuer plans to sell shares, disclosing details such as the number of shares, acquisition method, broker, and recent sales history.

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

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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	0001239648
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	ANAPTYSBIO, INC
SEC File Number	001-37985
Address of Issuer	10770 WATERIDGE CIRCLE, SUITE 210 SAN DIEGO CALIFORNIA 94005
Phone	858-362-6295
Name of Person for Whose Account the Securities are To Be Sold	ERIC J LOUMEAU
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 Stock	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	2210	99914.1	27688470	01/08/2026	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	01/08/2026	Restricted Stock Units	Issuer			2210	01/08/2026	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
Eric J. Loumeau 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	01/07/2026	2017	88566.47
Eric J. Loumeau 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	01/07/2026	3328	152040.34
Eric J. Loumeau 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	01/07/2026	4294	196172.25
Eric J. Loumeau 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	12/22/2025	10000	510000
Eric J. Loumeau 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	12/18/2025	141	6625.59
Eric J. Loumeau 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	12/17/2025	10000	460000
Eric J. Loumeau 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	12/16/2025	12500	560800.25
Eric J. Loumeau 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	01/06/2026	2983	129040.4

144: Remarks and Signature

Remarks
Date of Notice	01/09/2026
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/ Eric Loumeau
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)