ONC (NASDAQ: ONC) Form 144 shows insider sale of 756 ADS after vesting

Rhea-AI Filing Summary

Issuer filed a notice under Rule 144 to sell ADSs. The filing lists 756 ADS to be sold in connection with restricted stock vesting under a registered plan with an effective date of 06/10/2026. The excerpt also reports 1,367 ADS sold on 06/08/2026.

Insights

Securities Compliance Analyst

Form 144 notice reports proposed sale of 756 ADS tied to vesting.

The filing lists 756 ADS "Securities To Be Sold" with a stated date of 06/10/2026 and describes the transaction as "Restricted Stock Vesting Under a Registered Plan." This identifies the sale as arising from compensation vesting rather than an open-market purchase.

The excerpt also shows 1,367 ADS were sold on 06/08/2026 in the section "Securities Sold During The Past 3 Months." Cash-flow treatment and pricing details are not provided in the excerpt; subsequent filings may supply sale prices or settlement information.

Key Figures

ADS to be sold: 756 ADS ADS sold (past 3 months): 1,367 ADS Filer address / broker: Morgan Stanley Smith Barney LLC +1 more

4 metrics

ADS to be sold 756 ADS Securities To Be Sold, date <date>06/10/2026</date>

ADS sold (past 3 months) 1,367 ADS Securities Sold During The Past 3 Months, date <date>06/08/2026</date>

Filer address / broker Morgan Stanley Smith Barney LLC Listed under securities information as broker/custodian

Securities type ADS Securities Information and Securities To Be Sold

Key Terms

Form 144, ADS, Restricted Stock Vesting Under a Registered Plan

3 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.

ADS financial

"144: Securities Information ADS | Morgan Stanley"

Ads are paid promotional messages a company places across media — online, on TV, in print, or on social platforms — to attract customers, explain products, or shape public perception. For investors, ads matter because they drive sales growth, affect how much a company must spend to win customers, and influence brand strength and long-term value. Ads can also create regulatory or reputational risk if claims are misleading, which can affect profits and stock price.

Restricted Stock Vesting Under a Registered Plan compensation

"06/10/2026 | Restricted Stock Vesting Under a Registered Plan"

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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
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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
ADS	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	756	197629.74	54885669	06/11/2026	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 *
ADS	06/10/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			756	06/10/2026	Not Applicable

* 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
LAI WANG 94 Solaris Avenue, Camana Bay Grand Cayman E9 KY1 1108	ADS	06/08/2026	1367	368246.83

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does ONC's Form 144 show about insider sales?

The filing shows a proposed sale of 756 ADS tied to restricted stock vesting on 06/10/2026. It also reports 1,367 ADS sold on 06/08/2026 as disclosed in the excerpt.

Are the 756 ADS in ONC's filing from compensation or open-market sales?

The excerpt labels the 756 ADS as resulting from Restricted Stock Vesting Under a Registered Plan, indicating the shares arise from compensation vesting rather than an open-market purchase order.

Does the Form 144 excerpt state sale prices or proceeds for ONC ADS?

No sale prices or aggregate proceeds appear in the provided excerpt. The filing lists share counts and dates but does not include pricing or proceeds information in the visible text.

Who is the selling party named in the ONC filing excerpt?

The excerpt lists an address for LAI WANG at 94 Solaris Avenue, Camana Bay Grand Cayman E9 KY1 1108, associated with the disclosed ADS transactions on the dates shown.