OII (NYSE: OII) Form 144: 10,284-share sale noted; prior 29,155-share sale

Rhea-AI Filing Summary

OII affiliate files to sell shares — A Form 144 filing for OII shows proposed sales of 10,284 common shares arising from restricted stock vesting on 02/24/2026. The filing also discloses a prior sale by Jennifer Simons of 29,155 shares on 01/05/2026 for $768,100.62, and lists Fidelity Brokerage Services LLC as the broker.

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
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	10284	400664.64	99393743	02/25/2026	NYSE

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	02/24/2026	Restricted Stock Vesting	Issuer			10284	02/24/2026	Compensation

* 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
Jennifer Simons 5875 North Sam Houston Parkway West Suite 400 Houston TX 77086	Common	01/05/2026	29155	768100.62

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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 the OII Form 144 disclose about upcoming sales?

It discloses proposed sales of 10,284 common shares. The filing ties these shares to restricted stock vesting on 02/24/2026 and lists Fidelity Brokerage Services LLC as the broker handling the transaction.

Did any insider recently sell OII shares before this filing?

Yes — Jennifer Simons sold 29,155 shares on 01/05/2026. The filing records that sale for proceeds of $768,100.62, showing recent insider liquidity activity in addition to the newly proposed sale.

Who is the broker handling the OII transactions in the filing?

Fidelity Brokerage Services LLC is listed as the broker. The filing includes Fidelity's address and indicates it is the executing broker for the proposed and/or prior transactions disclosed in the Form 144.

Are the 10,284 shares being sold newly vested or previously held?

The 10,284 shares are tied to restricted stock vesting on 02/24/2026. The Form 144 lists the transaction type as "Restricted Stock Vesting" and classifies the source as "Issuer" under compensation.