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GrafTech holder Undavia group owns 8.5% stake

Undavia family and related trusts report an 8.5% investment stake in GRAFTECH INTERNATIONAL LTD common stock acquired with about $46.1 million of personal funds.

(Moderate)
(Neutral)
Form Type
SCHEDULE 13D/A

Rhea-AI Filing Summary

GRAFTECH INTERNATIONAL LTD (EAF) received Amendment No. 3 to a Schedule 13D from the Undavia family and related trusts, reporting beneficial ownership of 2,211,504 shares of common stock, representing 8.5% of the outstanding shares as of June 30, 2026.

The filing explains that the shares were acquired with personal funds contributed to various Undavia family trusts and IRAs for an aggregate purchase price of about $46.1 million. The reporting persons state they acquired additional shares for investment purposes and may buy or sell more shares depending on market conditions and subject to a Cooperation Agreement. The ownership structure spans multiple Florida and other trusts, with detailed allocations of sole and shared voting and dispositive power among Nilesh, Liliana, and Kanta Undavia and their trusts. Share numbers reflect a 1-for-10 reverse stock split effected on August 29, 2025.

Positive

  • None.

Negative

  • None.

Filing Explained

The amendment adds recent open-market purchases to an 8.5% stake whose holders may coordinate voting and disposition.

The amendment reports that the Undavia reporting persons beneficially own 2,211,504 GrafTech common shares, or 8.5% of outstanding shares calculated using the June 30, 2026 share count. The filing also says they may act in concert on proposals brought to the board, so the disclosed structural consequence is a coordinated holder-level voting and disposition position.

It records completed open-market purchases by three reported holders: 20,000 shares by the Liliana Arsenio-Undavia 2018 Trust on September 8, 2026, 20,000 shares through Nilesh Undavia’s Charles Schwab IRA on September 9, 2026, and 225,784 shares by the Nilesh P Undavia 2018 Trust on September 16, 2026.

The amendment restates the 17,308,942 shares reported in Amendment No. 2 as 1,730,895 shares after GrafTech’s August 29, 2025 1-for-10 reverse split, while the current reported stake is 2,211,504 shares.

Shares beneficially owned 2,211,504 shares Common stock of GRAFTECH INTERNATIONAL LTD reported by Undavia group
Ownership percentage 8.5% Portion of GRAFTECH common stock outstanding as of June 30, 2026
Shares outstanding 26,092,164 shares GRAFTECH common stock issued and outstanding as of June 30, 2026
Aggregate purchase price $46,135,312 Total consideration for 2,211,504 GRAFTECH shares acquired by reporting persons
Reverse stock split ratio 1-for-10 Reverse stock split of GRAFTECH common stock effective August 29, 2025
Post-split equivalent shares 1,730,895 shares Post-split equivalent of 17,308,942 shares previously reported in Amendment No. 2
NPU 2018 Trust purchase 225,784 shares for $1,830,170.62 Open market purchases on September 16, 2026
LAU 2018 Trust purchase 20,000 shares for $132,575.20 Open market purchases on September 8, 2026
Schedule 13D regulatory
"This Amendment No. 3 amends and supplements the originally filed Schedule 13D"
A Schedule 13D is a legal document that investors file with regulators when they buy a large enough stake in a company to potentially influence its management or decisions. It provides details about the investor’s intention, ownership stake, and plans, helping other investors understand who is gaining control and what their motives might be.
reverse stock split financial
"On August 29, 2025, the Issuer effected a 1-for-10 reverse stock split"
A reverse stock split reduces a company's number of outstanding shares while raising the price per share proportionally, so the total value of each investor's holding is unchanged; a 1-for-10 split turns 100 shares worth $1 each into 10 shares worth $10 each. Companies often do this to regain compliance with an exchange's minimum price rule or to attract investors who avoid very low-priced stocks.
beneficially own financial
"The Reporting Persons beneficially own 2,211,504 Shares, or approximately 8.5%"
Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.
dispositive power financial
"Accordingly, Mr. Undavia may be deemed to hold sole voting and dispositive power"
Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.
Cooperation Agreement regulatory
"subject to the terms of the Cooperation Agreement described in the"
A cooperation agreement is a formal contract between two or more organizations that lays out who will do what, how resources and responsibility are shared, how benefits or costs are divided, and how disputes or exits are handled. Like two chefs agreeing on a shared recipe and kitchen duties, it matters to investors because it can create new revenue paths, shift costs or risks, affect who controls key assets or technologies, and change a company’s future growth prospects.
group regulatory
"may be deemed to be members of a 'group' (within the meaning of SEC Rule 13d-5)"

FAQ

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

What percentage of GRAFTECH INTERNATIONAL LTD (EAF) does the Undavia group report owning?

The Undavia family and related trusts report beneficial ownership of 2,211,504 shares of GRAFTECH INTERNATIONAL LTD common stock, representing approximately 8.5% of the outstanding shares, based on 26,092,164 shares outstanding as of June 30, 2026.

How many GRAFTECH (EAF) shares does the Undavia group beneficially own in total?

The reporting persons collectively beneficially own 2,211,504 shares of GRAFTECH INTERNATIONAL LTD common stock. This figure includes holdings across multiple Undavia family trusts and IRAs and reflects the company’s 1-for-10 reverse stock split effected on August 29, 2025.

How much has the Undavia group spent acquiring its GRAFTECH (EAF) position?

The filing states that the reporting persons used personal funds to acquire 2,211,504 shares of GRAFTECH common stock for an aggregate purchase price of approximately $46,135,312, contributed to various Undavia family trusts and IRA accounts.

What recent GRAFTECH (EAF) share purchases are disclosed in this Schedule 13D/A?

Recent open market purchases include 20,000 shares by the Liliana Arsenio-Undavia 2018 Trust on September 8, 2026 for $132,575.20, 20,000 shares by Nilesh Undavia’s Charles Schwab IRA on September 9, 2026 for $123,567.36, and 225,784 shares by the Nilesh P Undavia 2018 Trust on September 16, 2026 for $1,830,170.62.

How did the reverse stock split affect the Undavia group’s reported GRAFTECH (EAF) holdings?

GRAFTECH effected a 1-for-10 reverse stock split of its common stock on August 29, 2025. The 17,308,942 shares previously reported in Amendment No. 2 correspond to 1,730,895 shares on a post-split basis, and all share figures in this amendment reflect the reverse split.

What is the nature of the Undavia group’s agreement regarding GRAFTECH (EAF) shares?

The reporting persons disclose a verbal agreement to vote, hold, or sell the shares in the same manner and to act in concert with respect to proposals brought to the board by Nilesh Undavia, which may cause them to be deemed a “group” under SEC Rule 13d-5.

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

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Learn about SEC filing dates





384313607

(CUSIP Number)
Nilesh Undavia
474 NE 3rd Street,
Boca Raton, FL, 33432
(617) 763-8191

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
09/16/2026

(Date of Event Which Requires Filing of This Statement)


If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




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Undavia Nilesh
Signature:/s/ Nilesh Undavia
Name/Title:Nilesh Undavia, Individual
Date:09/18/2026
Liliana Undavia
Signature:/s/ Liliana Undavia
Name/Title:Liliana Undavia, Individual
Date:09/18/2026
Kanta Undavia
Signature:/s/ Kanta Undavia
Name/Title:Kanta Undavia, Individual
Date:09/18/2026
The Nilesh P Undavia 2018 Trust u/a Dated 10/25/2018
Signature:/s/ Nilesh Undavia
Name/Title:Nilesh Undavia, Trustee
Date:09/18/2026
Signature:/s/ Liliana Undavia
Name/Title:Liliana Undavia, Trustee
Date:09/18/2026
The Liliana Arsenio-Undavia 2018 Trust u/a Dated 10/25/2018
Signature:/s/ Liliana Undavia
Name/Title:Liliana Undavia, Trustee
Date:09/18/2026
Signature:/s/ Nilesh Undavia
Name/Title:Nilesh Undavia, Trustee
Date:09/18/2026
The Nilesh Undavia Irrevocable Family Trust #1
Signature:/s/ Liliana Undavia
Name/Title:Liliana Undavia, Trustee
Date:09/18/2026
The Liliana Undavia Irrevocable Family Trust #1
Signature:/s/ Nilesh Undavia
Name/Title:Nilesh Undavia, Trustee
Date:09/18/2026
The Kanta Undavia Revocable Trust
Signature:/s/ Nilesh Undavia
Name/Title:Nilesh Undavia, Trustee
Date:09/18/2026
Signature:/s/ Kanta Undavia
Name/Title:Kanta Undavia, Trustee
Date:09/18/2026
The Sophia Undavia Irrevocable Trust
Signature:/s/ Liliana Undavia
Name/Title:Liliana Undavia, Trustee
Date:09/18/2026
The Jai Undavia Irrevocable Trust
Signature:/s/ Liliana Undavia
Name/Title:Liliana Undavia, Trustee
Date:09/18/2026
The Julia Undavia Irrevocable Trust
Signature:/s/ Liliana Undavia
Name/Title:Liliana Undavia, Trustee
Date:09/18/2026

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