As of November 6, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of Graftech International Ltd. The largest reported stake is Colonial House Capital Limited's, at 12.6%. 8 filings are on record since July 17, 2025 (Schedule 13G/A, February 18, 2026).
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Key facts
- · Reporting person: Undavia Nilesh · Sole voting: 1,282,474 · Shared voting: 929,030 · Sole dispositive: 1,282,474 · Shared dispositive: 929,030 · SCHEDULE 13D/A, 2026-09-18
- · Reporting person: HEG Graphite Ltd · Sole voting: 2,577,106 · Shared voting: 0 · Sole dispositive: 2,577,106 · Shared dispositive: 0 · SCHEDULE 13G, 2026-09-08
- · Reporting person: HEG Advanced Materials Ltd · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-09-08
- · Holder: Marathon Asset Management GP, L.L.C. · Percent: 4.7% · SCHEDULE 13G/A
- · Holder: Graphite India Ltd · Percent: 9.8% · SCHEDULE 13G/A
Graftech International Ltd has 8 Schedule 13D or 13G filings on record since 2025-07-17. 4 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Layoffs on record: 2 filings or notices, latest 2026-10-26 (layoff filings and notices).
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Colonial House Capital Limited | 12.6% | 3,248,670 | SCHEDULE 13G/A, 2026-02-18 | 2026-02-01 |
| HEG Graphite Ltd | 9.9% | 2,577,106 | SCHEDULE 13G, 2026-09-08 | 2026-09-01 |
| Graphite India Ltd | 9.8% | 2,550,000 | SCHEDULE 13G/A, 2026-05-11 | 2026-02-13 |
| 8.5% | 2,211,504 | SCHEDULE 13D/A, 2026-09-18 | 2026-09-16 | |
| Marathon Asset Management GP, L.L.C. | 4.7% | 1,211,615 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 |
| BlackRock, Inc. | 1.8% | 4,635,873 | SCHEDULE 13G/A, 2025-07-17 | 2025-06-30 |
| HEG Advanced Materials Ltd | 0% | 0 | SCHEDULE 13G/A, 2026-09-08 | 2026-09-01 |
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More on Graftech International Ltd and the records around it.
Graftech International Ltd elsewhere on the record
- Layoff notices Oct 2026
- Form D filing Apr 2026
- Who owns it
Companies that share a holder
- Marathon Asset Management GP, L.L.C. also filed stake reports on 2 other companies: Keenova Therapeutics plc (May 2026)
- BlackRock, Inc. also filed stake reports on 1596 other companies: AvePoint, Inc. (Nov 2026), BIOMARIN PHARMACEUTICAL INC (Nov 2026), MSG RANGERS CORP (Nov 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| HEG Graphite Ltd | 2,577,106 | 0 | 2,577,106 | 0 | SCHEDULE 13G, 2026-09-08 |
| Undavia Nilesh | 1,282,474 | 929,030 | 1,282,474 | 929,030 | SCHEDULE 13D/A, 2026-09-18 |
| Liliana Undavia | 281,000 | 1,930,504 | 281,000 | 1,930,504 | SCHEDULE 13D/A, 2026-09-18 |
| Kanta Undavia | 0 | 2,211,504 | 0 | 2,211,504 | SCHEDULE 13D/A, 2026-09-18 |
| The Nilesh P Undavia 2018 Trust u/a Dated 10/25/2018 | 568,030 | 1,643,474 | 568,030 | 1,643,474 | SCHEDULE 13D/A, 2026-09-18 |
| The Liliana Arsenio-Undavia 2018 Trust u/a Dated 10/25/2018 | 60,000 | 2,151,504 | 60,000 | 2,151,504 | SCHEDULE 13D/A, 2026-09-18 |
| The Nilesh Undavia Irrevocable Family Trust #1 | 260,000 | 1,951,504 | 260,000 | 1,951,504 | SCHEDULE 13D/A, 2026-09-18 |
| The Liliana Undavia Irrevocable Family Trust #1 | 260,000 | 1,951,504 | 260,000 | 1,951,504 | SCHEDULE 13D/A, 2026-09-18 |
| The Kanta Undavia Revocable Trust | 20,000 | 2,191,504 | 20,000 | 2,191,504 | SCHEDULE 13D/A, 2026-09-18 |
| The Sophia Undavia Irrevocable Trust | 7,000 | 2,204,504 | 7,000 | 2,204,504 | SCHEDULE 13D/A, 2026-09-18 |
| The Jai Undavia Irrevocable Trust | 7,000 | 2,204,504 | 7,000 | 2,204,504 | SCHEDULE 13D/A, 2026-09-18 |
| The Julia Undavia Irrevocable Trust | 7,000 | 2,204,504 | 7,000 | 2,204,504 | SCHEDULE 13D/A, 2026-09-18 |
| HEG Advanced Materials Ltd | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-09-08 |
The latest filing identifies Graftech International Ltd by CUSIP 384313607 and gives its principal executive office as 982 KEYNOTE CIRCLE, BROOKLYN HEIGHTS, OH 44131 (SCHEDULE 13D/A, 2026-09-18).
What the percentages are based on
As of the date hereof, the Reporting Person may be deemed the beneficial owner of approximately 9.9% of the shares of Common Stock outstanding. This percentage is based on 26,092,164 shares of Common Stock outstanding as of July 17, 2026, as reported by the Issuer in its quarterly report on Form 10-Q filed with the Securities and Exchange Commission on July 24, 2026.HEG Graphite Ltd, SCHEDULE 13G, 2026-09-08
Source of funds (Item 3)
Item 3 is hereby amended and restated in its entirety as follows: Personal funds of the Undavias, contributed to the Trusts and to Nilesh P Undavia Charles Schwab & Co., Inc. Custodial IRA Rollover (the Charles Schwab IRA) and Nilesh P Undavia IRA Rollover with JP Morgan (the JP Morgan IRA and, together with the Charles Schwab IRA, the IRAs), were used to purchase the 2,211,504 shares (the Shares) of the Issuers Common Stock to which this Schedule 13D relates. The Shares were purchased by the Reporting Persons for an aggregate purchase price of approximately $46,135,312.Undavia Nilesh, SCHEDULE 13D/A, 2026-09-18
Purpose of Transaction (Item 4)
Undavia Nilesh
Item 4 is hereby amended to add the following: The Reporting Persons acquired the additional Shares reported in this Amendment for investment purposes, based on their belief that the Common Stock is an attractive investment in light of current industry conditions. The Reporting Persons may acquire additional shares of Common Stock from time to time in open market transactions, privately negotiated transactions or otherwise, or may dispose of shares of Common Stock, in each case depending upon market conditions, the price and availability of the Common Stock, and other investment considerations, and in each case subject to the terms of the Cooperation Agreement described in the Schedule 13D.Item 4 of the SCHEDULE 13D/A filed 2026-09-18
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-17 | BlackRock, Inc. | 1.8% | SCHEDULE 13G/A |
| 2025-09-18 | Graphite India Ltd | 6.8% | SCHEDULE 13G |
| 2026-02-18 | Colonial House Capital Limited | 12.6% | SCHEDULE 13G/A |
| 2026-05-11 | Graphite India Ltd | 9.8% | SCHEDULE 13G/A |
| 2026-05-15 | Marathon Asset Management GP, L.L.C. | 4.7% | SCHEDULE 13G/A |
| 2026-09-08 | HEG Advanced Materials Ltd | 0% | SCHEDULE 13G/A |
| 2026-09-08 | HEG Graphite Ltd | 9.9% | SCHEDULE 13G |
| 2026-09-18 | Undavia Nilesh | 8.5% | SCHEDULE 13D/A |
Questions about who owns Graftech International Ltd
Who owns Graftech International Ltd?
On this page, 4 holders' latest ownership filings report 5% or more of Graftech International Ltd: Colonial House Capital Limited (12.6%, Schedule 13G/A, filed 2026-02-18), HEG Graphite Ltd (9.9%, Schedule 13G, filed 2026-09-08), Graphite India Ltd (9.8%, Schedule 13G/A, filed 2026-05-11) and Undavia Nilesh (8.5%, Schedule 13D/A, filed 2026-09-18).
Who are the largest shareholders of Graftech International Ltd?
By the share each holder's latest filing reports, the largest holders of Graftech International Ltd on this page are Colonial House Capital Limited (12.6%), HEG Graphite Ltd (9.9%) and Graphite India Ltd (9.8%).
When did Colonial House Capital Limited buy into Graftech International Ltd?
The filings give report dates, not purchase dates. The earliest filing from Colonial House Capital Limited on this page is the Schedule 13G/A, filed 2026-02-18, reporting 12.6%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 8 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Graftech International Ltd
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| April 1, 2026 | Form D, private offering | $633K sold | Form D page | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.