Dennis Mulroy files Form 144 to sell 10,000 shares

Dennis Mulroy reported multiple proposed sales of Common Stock on a Form 144, including notices to sell 10,000 shares tied to a stock option exercise dated 05/27/2026.

Accepted by SEC EDGAR 05/27/2026 - 04:46 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Dennis Mulroy reported multiple proposed sales of Common Stock on a Form 144, including notices to sell 10,000 shares tied to a stock option exercise dated 05/27/2026. The excerpt lists several recent dispositions dated 05/15/2026–05/26/2026 with gross proceeds shown for each sale.

Key Figures

Planned sale (exercise): 10,000 shares Sale on 05/26/2026: 10,000 shares Sale on 05/22/2026: 10,000 shares +3 more

6 metrics

Planned sale (exercise) 10,000 shares Stock option exercise dated 05/27/2026

Sale on 05/26/2026 10,000 shares Gross proceeds reported $576,000.00

Sale on 05/22/2026 10,000 shares Gross proceeds reported $593,009.00

Sale on 05/21/2026 15,467 shares Gross proceeds reported $928,071.04

Sale on 05/19/2026 10,000 shares Gross proceeds reported $599,000.00

Sale on 05/15/2026 10,000 shares Gross proceeds reported $632,543.00

Key Terms

Form 144, Stock Option Exercise, Issuer, Gross proceeds, +1 more

5 terms

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.

Stock Option Exercise financial

"Common | 05/27/2026 | Stock Option Exercise"

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 legal

"Stock Option Exercise | Issuer"

Gross proceeds financial

"05/26/2026 | 10000 | 576000.00"

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.

Broker/Dealer market

"Morgan Stanley Smith Barney LLC 1 New York Plaza"

A broker/dealer is a firm or person that both carries out trades for clients (broker) and buys or sells securities from its own inventory (dealer). Think of it as a shop that can take customer orders and also sell items off its own shelves. Investors care because broker/dealers connect buyers and sellers, influence the price and speed of trades, hold securities or cash for short periods, and can create conflicts of interest that affect trade cost and reliability.

FAQ

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

What does Dennis Mulroy's Form 144 for ANAB show?

The Form 144 shows notices to sell Common Stock, including a stock option exercise for 10,000 shares dated 05/27/2026. It also lists multiple prior dispositions dated 05/15/2026–05/26/2026 with reported gross proceeds.

How many shares and proceeds are listed on the Form 144 for ANAB?

The excerpt lists a planned sale of 10,000 shares (exercise) and prior sales of 10,000, 10,000, 15,467, 10,000, and 10,000 shares with gross amounts shown (for example, $576,000, $593,009, $928,071.04).

What dates are associated with the reported ANAB transactions?

Transactions and notices in the excerpt are dated between 05/15/2026 and 05/27/2026. The stock option exercise notice is dated 05/27/2026 and prior dispositions are dated 05/15/2026, 05/19/2026, 05/21/2026, 05/22/2026, and 05/26/2026.

Who is listed as the broker or selling agent on the Form 144?

The excerpt lists Morgan Stanley Smith Barney LLC at 1 New York Plaza as the broker/dealer for the transaction and cites NASDAQ as the exchange. Broker contact details appear on the filing extract.

Does Form 144 indicate the sale method or cash treatment?

The stock option exercise row shows Cash as the consideration method. Other sale rows list gross dollar amounts for dispositions. Further distribution methods are not detailed in the provided excerpt.

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	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	10000	585006.00	29100902	05/27/2026	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	05/27/2026	Stock Option Exercise	Issuer			10000	05/27/2026	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	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	05/27/2026
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)