ANAB Form 144: Proposed sale of 20,000 shares

ANAB: Notice of proposed sale of 20,000 shares of Common Stock via a stock option exercise on 06/09/2026, with cash proceeds indicated to the issuer.

Rhea-AI Filing Summary

ANAB: Notice of proposed sale of 20,000 shares of Common Stock via a stock option exercise on 06/09/2026, with cash proceeds indicated to the issuer. The filing lists multiple recent disposals by Dennis Mulroy in May–June 2026, including 21,987 shares on 06/08/2026 and 22,491 shares on 06/05/2026.

Insights

Securities Compliance Analyst

Routine Form 144 notice showing a planned option-based sale and multiple recent dispositions.

The filing reports a 20,000-share proposed sale by stock option exercise on 06/09/2026, with the method listed as Issuer and consideration as Cash. Several prior sales by Dennis Mulroy are itemized across late May and early June 2026.

These entries are procedural disclosures required for subsequent resale; cashflow treatment for the 20,000-share item is shown as received by the issuer. Subsequent filings or Form 4s would be the place to confirm completed transactions and post-sale holdings.

Key Figures

Proposed sale: 20,000 shares Recent sale example: 21,987 shares Recent sale example: 22,491 shares +1 more

4 metrics

Proposed sale 20,000 shares stock option exercise on <date>06/09/2026

Recent sale example 21,987 shares sale on <date>06/08/2026>

Recent sale example 22,491 shares sale on <date>06/05/2026>

Recent sale dollar value $1,117,703.63 proceeds reported for 21,987-share sale on <date>06/08/2026>

Key Terms

Stock Option Exercise, Issuer, Form 144, Securities To Be Sold

4 terms

Stock Option Exercise regulatory

"Common | 06/09/2026 | Stock Option Exercise | Issuer"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Issuer financial

"Stock Option Exercise | Issuer | | | 20000"

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Securities To Be Sold financial

"144: Securities To Be Sold Common | 06/09/2026"

FAQ

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

What does ANAB's Form 144 say about the 06/09/2026 transaction?

It reports a proposed sale of 20,000 shares of Common Stock by stock option exercise on 06/09/2026, with cash proceeds directed to the issuer.

Who is the selling party named in the Form 144 for ANAB?

The filing itemizes recent dispositions by Dennis Mulroy. The proposed 06/09/2026 sale is reported in the same filing context with Morgan Stanley Smith Barney listed as the broker.

Does the Form 144 show recent sales by the same holder?

Yes. The filing lists multiple recent sales by Dennis Mulroy in May–June 2026, including 21,987 shares on 06/08/2026 and 22,491 shares on 06/05/2026.

Will the issuer receive proceeds from the 20,000-share transaction?

The filing shows the 20,000-share item as a stock option exercise with the method column indicating Issuer and the consideration listed as Cash, implying proceeds to the issuer.

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

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Accepted by SEC EDGAR 06/09/2026 - 05:08 PM Learn about SEC filing dates

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	0001276840
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 92121
Phone	(858) 362-6295
Name of Person for Whose Account the Securities are To Be Sold	DENNIS MULROY
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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	20000	1032230.00	29100902	06/09/2026	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	06/09/2026	Stock Option Exercise	Issuer			20000	06/09/2026	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
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	06/08/2026	21987	1117703.63
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	06/05/2026	22491	1153671.22
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	06/04/2026	20000	1035438.00
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	06/03/2026	20000	1017250.00
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	06/02/2026	20000	1033096.00
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	06/01/2026	7691	404340.28
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	05/29/2026	15000	834903.00
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	05/28/2026	10264	594671.20
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	05/27/2026	10000	585006.00
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	05/26/2026	10000	576000.00
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	05/22/2026	10000	593009.00
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	05/21/2026	15467	928071.04
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	05/19/2026	10000	599000.00
DENNIS MULROY 10770 Wateridge Circle, Suite 210 San Diego CA 92121	Common	05/15/2026	10000	632543.00

144: Remarks and Signature

Remarks
Date of Notice	06/09/2026
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/ Dennis Michael Mulroy
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)