ANAB affiliate files Form 144 for multiple stock sales

ANAB affiliate reported proposed sales of Common Stock by Dennis Mulroy via a Form 144 notice.

Rhea-AI Filing Summary

ANAB affiliate reported proposed sales of Common Stock by Dennis Mulroy via a Form 144 notice. The filing lists multiple sales dates in May–June 2026 with individual transactions such as 22,491 shares for $1,153,671.22 on 06/05/2026 and several 20,000‑share entries in early June. The notice also shows equity awards/issuances including restricted stock grants and a 13,910 share stock option exercise on 06/08/2026.

Insights

Equity Capital Markets Analyst

Form 144 lists multiple proposed affiliate sales and recent transactions by Dennis Mulroy.

The filing details individual sale transactions with specific share counts and gross proceeds, for example 22,491 shares yielding $1,153,671.22 on 06/05/2026. It also lists restricted stock grants and a 13,910 share stock option exercise on 06/08/2026.

Cash‑flow treatment for the resale and the recipient of proceeds is not specified beyond the reported gross amounts; subsequent SEC filings or broker disclosures would clarify settlement and whether sales were part of prearranged plans.

Key Figures

Single‑day sale: 22,491 shares Gross proceeds (example): $1,153,671.22 Recurring sale size: 20,000 shares +3 more

6 metrics

Single‑day sale 22,491 shares sale on 06/05/2026

Gross proceeds (example) $1,153,671.22 proceeds reported for 22,491 shares on 06/05/2026

Recurring sale size 20,000 shares multiple entries on 06/04/2026 and 06/03/2026

Stock option exercise 13,910 shares stock option exercise dated 06/08/2026 (cash)

Example sale proceeds $1,035,438.00 proceeds for 20,000 shares on 06/04/2026

Restricted stock grants 4,886 shares; 3,191 shares restricted stock dated 01/03/2025 and 01/06/2025

Key Terms

Form 144, Restricted Stock, Stock Option Exercise, Issuer, +1 more

5 terms

Form 144 regulatory

"Form 144 notice of proposed sale by an affiliate"

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.

Restricted Stock financial

"Restricted Stock entries dated 01/03/2025 and 01/06/2025"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Stock Option Exercise financial

"Stock Option Exercise | Issuer | 13,910 | 06/08/2026 | Cash"

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 regulatory

"Entries labeled as Issuer for restricted stock and option exercise"

Gross proceeds financial

"Per‑transaction dollar amounts such as $1,153,671.22 reported alongside share counts"

The total amount of cash a company receives from a financing event or sale before any fees, expenses, taxes or deductions are taken out. Investors watch gross proceeds because it shows the raw scale of new capital being raised—think of it as the paycheck amount before withholdings—which helps assess how much funding is available for operations, growth, debt payoff or how much shareholder dilution might occur once costs are removed.

FAQ

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

What does ANAB's Form 144 filing show about insider Dennis Mulroy?

The Form 144 shows multiple proposed sales by Dennis Mulroy, including a 22,491‑share sale for $1,153,671.22 on 06/05/2026. It also lists other sales in May–June 2026 and equity grants/exercises.

How many shares were listed for the largest single transaction in the filing?

The largest single transaction shown is 22,491 shares on 06/05/2026, reported with gross proceeds of $1,153,671.22. Several other entries show 20,000‑share transactions on nearby dates.

Does the filing show any option exercises or restricted stock grants for ANAB?

Yes. The excerpt lists restricted stock grants dated 01/03/2025 and 01/06/2025, and a 13,910 share stock option exercise on 06/08/2026 with cash indicated as the exercise method.

Are net proceeds or the beneficiary of the sales specified in the Form 144?

The filing reports gross proceeds per transaction (for example $1,153,671.22), but it does not specify net proceeds or the ultimate beneficiary of sale proceeds within the provided excerpt.

Who is the broker or intermediary listed on the Form 144 filing?

The filing lists Morgan Stanley Smith Barney LLC at 1 New York Plaza as the broker/dealer associated with the transactions shown in the excerpt.

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

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Accepted by SEC EDGAR 06/08/2026 - 05:20 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	21987	1117703.63	29100902	06/08/2026	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	01/03/2025	Restricted Stock	Issuer			4886	01/03/2025	Not Applicable
Common	01/06/2025	Restricted Stock	Issuer			3191	01/06/2025	Not Applicable
Common	06/08/2026	Stock Option Exercise	Issuer			13910	06/08/2026	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
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	06/08/2026
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)