Neurocrine officer plans sale of 4,714 shares

An NBIX officer filed a Rule 144 notice covering 4,714 shares from vested restricted and performance stock units.

Rhea-AI Filing Summary

NEUROCRINE BIOSCIENCES INC (NBIX) received a Rule 144 notice from officer David Warren Boyer covering the planned sale of 4,714 shares of common stock through Morgan Stanley Smith Barney. The shares were or will be acquired upon vesting of restricted and performance stock units during the period from January 31, 2026 through September 14, 2026.

Key Figures

Shares covered by Rule 144 notice: 4,714 shares Approximate aggregate market value: $736,421.08 Vesting period for stock units: January 31, 2026 to September 14, 2026 +1 more

4 metrics

Shares covered by Rule 144 notice 4,714 shares Common stock to be sold for the account of David Warren Boyer

Approximate aggregate market value $736,421.08 Value associated with the 4,714 shares of NBIX common stock

Vesting period for stock units January 31, 2026 to September 14, 2026 Period during which restricted and performance stock units vested

Date of notice September 14, 2026 Date on which the Rule 144 notice was signed and submitted

Key Terms

Rule 144, restricted and performance stock units, aggregate market value, common stock

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

restricted and performance stock units financial

"Restricted and Performance Stock Units | Issuer"

aggregate market value financial

"4714 | 736421.08 | 101649181"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

common stock financial

"Common | Morgan Stanley Smith Barney LLC Executive Financial Services"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

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

What does the Form 144 filing mean for NBIX?

The filing discloses that an NBIX officer, David Warren Boyer, has filed a Rule 144 notice to sell up to 4,714 shares of NBIX common stock acquired from vesting restricted and performance stock units. It is an advance disclosure of a potential sale, not a confirmation that sales have occurred.

How many NBIX shares are covered by this Form 144 notice?

The notice covers up to 4,714 shares of NBIX common stock that may be sold under Rule 144. These shares are tied to restricted and performance stock units that vested or will vest between January 31, 2026 and September 14, 2026.

What is the approximate value of the NBIX shares in this Rule 144 filing?

The Form 144 lists an approximate aggregate market value of $736,421.08 for the 4,714 shares of NBIX common stock covered by the notice. This value is part of the informational disclosure and does not itself represent proceeds received.

Who is selling NBIX stock under this Form 144 notice?

The person for whose account the securities may be sold is David Warren Boyer, identified in the filing as an officer of Neurocrine Biosciences Inc. The sales are to be executed through Morgan Stanley Smith Barney LLC Executive Financial Services.

What is the source of the NBIX shares to be sold under Rule 144?

The filing states that the shares to be sold were or will be acquired upon the vesting of restricted and performance stock units during the period from January 31, 2026 through September 14, 2026, with the issuer listed as Neurocrine Biosciences Inc.

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

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Available on EDGAR 09/14/2026 - 04:47 PM Accepted by SEC EDGAR 09/14/2026 - 04:39 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	0001909817
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	NEUROCRINE BIOSCIENCES INC
SEC File Number	000-22705
Address of Issuer	6027 Edgewood Bend Court San Diego CALIFORNIA 92130
Phone	8586177600
Name of Person for Whose Account the Securities are To Be Sold	DAVID WARREN BOYER
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	4714	736421.08	101649181	09/14/2026	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	01/31/2026	Restricted and Performance Stock Units	Issuer			4714	01/31/2026	N/A

* 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

Nothing to Report

144: Remarks and Signature

Remarks	The securities to be sold were or will be acquired upon the vesting of restricted and performance stock units during the period of 1/31/2026 through 9/14/2026.
Date of Notice	09/14/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	02/23/2026
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/ David Warren Boyer
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)