Tidewater director plans $47.6M stock sale

Director Robert E. Robotti filed a Rule 144 notice to sell 537,854 TDW common shares, valued at about $47.6 million.

Rhea-AI Filing Summary

TIDEWATER INC (TDW) received a notice that director Robert E. Robotti intends to sell 537,854 shares of Tidewater common stock under Rule 144. The notice lists an aggregate market value of about $47.6 million for these shares and states that Tidewater has 49,756,231 shares outstanding as of September 16, 2026.

Key Figures

Shares to be sold under Rule 144: 537,854 shares Aggregate market value of shares to be sold: $47,643,107.00 Shares outstanding: 49,756,231 shares +3 more

6 metrics

Shares to be sold under Rule 144 537,854 shares Common Stock, $0.001 par value per share to be sold by Robert E. Robotti

Aggregate market value of shares to be sold $47,643,107.00 Value associated with 537,854 Tidewater common shares in the Form 144

Shares outstanding 49,756,231 shares Tidewater common shares outstanding as of September 16, 2026

Recent open market purchase 25,000 shares Open market purchase on March 13, 2025, settled March 14, 2025 for cash

Open market purchase (2017) 5,258 shares Open market purchase on May 16, 2017, settled May 18, 2017 for cash

Open market purchase (2019) 19,220 shares Open market purchase on August 8, 2019, settled August 12, 2019 for cash

Key Terms

Rule 144, Open Market Purchase, Common Stock, $0.001 Par Value Per Share, Aggregate market value

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.

Open Market Purchase financial

"Common Stock, $0.001 Par Value Per Share | 05/16/2017 | Open Market Purchase"

An open market purchase is when a company buys its own shares on public stock exchanges the same way any investor would, rather than through a private deal. Investors care because these purchases reduce the number of shares available, can boost earnings per share and share price, signal that management thinks the stock is undervalued, and use company cash that might otherwise go to reinvestment or dividends — like a business quietly buying back its own tickets at the box office.

Common Stock, $0.001 Par Value Per Share financial

"Common Stock, $0.001 Par Value Per Share | Robotti Securities, LLC"

Aggregate market value financial

"537854 | 47643107.00 | 49756231 | 09/16/2026 | NYSE"

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.

FAQ

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

What does the Form 144 filing mean for TIDEWATER INC (TDW)?

The Form 144 reports that director Robert E. Robotti plans to sell 537,854 shares of Tidewater common stock under Rule 144. It is a notice of a potential sale by an affiliate, not a transaction by Tidewater itself.

How many TDW shares are covered by Robert Robotti’s planned Rule 144 sale?

The notice covers 537,854 shares of Tidewater Inc. common stock, $0.001 par value per share. This figure appears in the securities information section associated with the planned Rule 144 sale.

What is the approximate market value of the TDW shares in this Form 144?

The filing lists an aggregate market value of $47,643,107.00 for the 537,854 shares of Tidewater common stock covered by the planned Rule 144 sale.

How many Tidewater (TDW) shares are outstanding according to this notice?

The Form 144 indicates that 49,756,231 shares of Tidewater common stock are outstanding as of September 16, 2026. This figure is provided as context for the size of the planned sale.

On which market are the TDW shares in this Form 144 listed?

The common stock referenced in the Form 144 for Tidewater Inc. is listed on the NYSE, as indicated in the securities information section of the notice.

What is the acquisition history of the TDW shares in this Form 144?

The filing lists prior open market purchases of Tidewater common stock, including transactions on dates such as May 16, 2017 (5,258 shares), August 8, 2019 (19,220 shares), and March 13, 2025 (25,000 shares), all acquired for cash.

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

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Available on EDGAR 09/16/2026 - 07:49 AM EDT Accepted by SEC EDGAR 09/16/2026 - 07:49 AM 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	0001105838
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	TIDEWATER INC
SEC File Number	001-06311
Address of Issuer	842 WEST SAM HOUSTON PARKWAY NORTH SUITE 400 HOUSTON TEXAS 77024
Phone	(713) 470-5300
Name of Person for Whose Account the Securities are To Be Sold	ROBOTTI ROBERT
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	Director

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 Stock, $0.001 Par Value Per Share	Robotti Securities, LLC 125 Park Avenue, Suite 1607 NEW YORK NY 10017-8501	537854	47643107.00	49756231	09/16/2026	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 Stock, $0.001 Par Value Per Share	05/16/2017	Open Market Purchase	Open Market Purchase			5258	05/18/2017	Cash
Common Stock, $0.001 Par Value Per Share	08/08/2019	Open Market Purchase	Open Market Purchase			19220	08/12/2019	Cash
Common Stock, $0.001 Par Value Per Share	05/12/2022	Open Market Purchase	Open Market Purchase			21272	05/16/2022	Cash
Common Stock, $0.001 Par Value Per Share	05/13/2022	Open Market Purchase	Open Market Purchase			1	05/17/2022	Cash
Common Stock, $0.001 Par Value Per Share	08/10/2022	Open Market Purchase	Open Market Purchase			220446	08/12/2022	Cash
Common Stock, $0.001 Par Value Per Share	07/31/2023	Open Market Purchase	Open Market Purchase			78973	07/31/2023	Cash
Common Stock, $0.001 Par Value Per Share	08/10/2022	Open Market Purchase	Open Market Purchase			80759	08/12/2022	Cash
Common Stock, $0.001 Par Value Per Share	07/31/2023	Open Market Purchase	Open Market Purchase			38725	08/02/2023	Cash
Common Stock, $0.001 Par Value Per Share	08/10/2023	Open Market Purchase	Open Market Purchase			48200	08/14/2023	Cash
Common Stock, $0.001 Par Value Per Share	03/13/2025	Open Market Purchase	Open Market Purchase			25000	03/14/2025	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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	09/16/2026
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/ Robert E. Robotti
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)