Insider files to sell 25,000 shares via option exercise

ETON insider filed a Form 144 to sell 25,000 shares.

Rhea-AI Filing Summary

ETON insider filed a Form 144 to sell 25,000 shares. The filing lists a stock option exercise for 25,000 common shares to be sold for cash on 06/23/2026. The filing also reports a prior sale of 3,117 shares on 06/02/2026 for $84,041.00.

Insights

Insider Transactions Analyst

Rule 144 notice for a 25,000-share option exercise and proposed sale.

The document lists a stock option exercise and planned sale of 25,000 common shares on 06/23/2026 with proceeds described as cash. It also reports a prior sale of 3,117 shares on 06/02/2026 for $84,041.00.

These disclosures are administrative notices of resale under Rule 144. The filing lists transaction dates, amounts, and cash treatment; cash‑flow treatment and recipient details beyond those items are not provided in the excerpt.

Key Figures

Proposed shares to sell: 25,000 shares Prior shares sold: 3,117 shares Proceeds reported for prior sale: $84,041.00

3 metrics

Proposed shares to sell 25,000 shares stock option exercise scheduled <date>06/23/2026</date>

Prior shares sold 3,117 shares sale on <date>06/02/2026</date>

Proceeds reported for prior sale $84,041.00 amount received for 3,117 shares on <date>06/02/2026</date>

Key Terms

Stock Option Exercise, Form 144, Issuer

3 terms

Stock Option Exercise financial

"Securities To Be Sold ... Stock Option Exercise ... 25000"

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.

Form 144 regulatory

"Filer Information | 144: Filer Information"

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.

Issuer regulatory

"Securities To Be Sold ... Issuer ... Cash"

FAQ

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

What does the Form 144 filed for ETON report?

The Form 144 reports a proposed sale of 25,000 common shares via a stock option exercise scheduled for 06/23/2026. It also notes a prior sale of 3,117 shares on 06/02/2026 for $84,041.00.

Who executed the prior sale reported in the filing?

The prior sale is reported in the excerpt as by James R Gruber, showing 3,117 shares sold on 06/02/2026 for $84,041.00, at the address listed in the filing.

How will the 25,000 shares be sold according to the filing?

The filing states the 25,000 shares arise from a stock option exercise and are to be sold for cash on 06/23/2026. The excerpt does not detail the specific brokered method of sale.

Does the filing disclose proceeds recipient or use of proceeds?

The Form 144 excerpt indicates the sale is by exercise and lists cash as treatment, but it does not specify who receives proceeds or how proceeds will be used in the provided text.

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

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Accepted by SEC EDGAR 06/23/2026 - 04:32 PM EDT 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	0001923165
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	Eton Pharmaceuticals, Inc.
SEC File Number	001-38738
Address of Issuer	21925 W. FIELD PARKWAY SUITE 235 DEER PARK ILLINOIS 60010-7278
Phone	(847) 787-7361
Name of Person for Whose Account the Securities are To Be Sold	Gruber James R.
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	Raymond James & Associates 880 Carillon Parkway St. Petersburg FL 33716	25000	830874.41	27390000	06/23/2026	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	06/23/2026	Stock Option Exercise	Issuer			25000	06/23/2026	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
James R Gruber 618 AMES STREET Libertyville IL 60048	Common	06/02/2026	3117	84041.00

144: Remarks and Signature

Remarks
Date of Notice	06/23/2026
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	Rashida Mitchell, as duly authorized representative of Raymond James & Associates, Inc., as attorney-in-fact for James R Gruber
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)