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5%+ stakes · Schedule 13D and 13G

Fermi Inc.: 5%+ holders

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Who has reported owning 5% or more of Fermi Inc., from Schedule 13D and 13G filings: each holder's stake as filed, the timeline, and the purpose each 13D states, quoted.

As of November 8, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Fermi Inc. The largest reported stake is Toby Neugebauer's, at 24.1%. 12 filings are on record since November 6, 2025 (Schedule 13G, November 14, 2025).

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Key facts

  • · Reporting person: Robert Randolph Neugebauer · Sole voting: 0 · Shared voting: 11,544,870 · Sole dispositive: 0 · Shared dispositive: 11,544,870 · SCHEDULE 13G/A, 2026-08-14
  • · Reporting person: Caddis Holdings, LP · Sole voting: 0 · Shared voting: 52,256,833 · Sole dispositive: 0 · Shared dispositive: 52,256,833 · SCHEDULE 13G, 2026-07-20
  • · Holder: Caddis Holdings, LP · Percent: 8.2% · SCHEDULE 13D/A
  • · Holder: Caddis Holdings, LP · Percent: 8.2% · SCHEDULE 13D/A
  • · Holder: Pencross Energy, LLC · Percent: 4.5% · SCHEDULE 13G/A
At 5% or more3
Filings12
Latest filing2026-08-14

Fermi Inc. has 12 Schedule 13D or 13G filings on record since 2025-11-06. 3 holders' latest filing reports 5% or more of common stock, $0.001 par value per share. Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
24.1%144,101,446SCHEDULE 13G, 2025-11-142025-09-30
9.7%60,946,450SCHEDULE 13G/A, 2026-04-152026-03-31
Caddis Holdings, LP8.2%52,256,833SCHEDULE 13G, 2026-07-202026-07-16
Pencross Energy, LLC4.5%28,412,241SCHEDULE 13G/A, 2026-05-152026-03-31
1.8%11,544,870SCHEDULE 13G/A, 2026-08-142026-06-30

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More on Fermi Inc. and the records around it.

Fermi Inc. elsewhere on the record

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What the Full Report on Fermi Inc. covers

  1. The Short Answer

  2. Which Company This Is

  3. What They Do, And How The Money Works

  4. Who Runs It, And How To Reach Them

  5. The Money: Funding, Valuation, Runway

  6. Who Pays Them, And Who They Are Up Against

  7. Warning Bells

  8. Sources

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Voting and dispositive power, as filed

Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Caddis Holdings, LP052,256,833052,256,833SCHEDULE 13G, 2026-07-20
Perry Griffin052,256,833052,256,833SCHEDULE 13G, 2026-07-20
Robert Randolph Neugebauer011,544,870011,544,870SCHEDULE 13G/A, 2026-08-14

The latest filing identifies Fermi Inc. by CUSIP 314911108 and gives its principal executive office as 620 S. Taylor, Suite 301, Amarillo, Texas 79101, 10777 Strait Lane, TX TX 75229 (SCHEDULE 13G/A, 2026-08-14).

Timeline

FiledHolderPercentFiling
2025-11-06Pencross Energy, LLC9.41%SCHEDULE 13G
2025-11-14Griffin Perry12.67%SCHEDULE 13G
2025-11-14Toby Neugebauer24.1%SCHEDULE 13G
2025-11-14Robert Randolph Neugebauer7.9%SCHEDULE 13G
2026-02-17Pencross Energy, LLC8.45%SCHEDULE 13G/A
2026-04-15Griffin Perry9.7%SCHEDULE 13G/A
2026-05-15Pencross Energy, LLC4.5%SCHEDULE 13G/A
2026-05-15Caddis Holdings, LP9.1%SCHEDULE 13D
2026-07-02Caddis Holdings, LP8.2%SCHEDULE 13D/A
2026-07-08Caddis Holdings, LP8.2%SCHEDULE 13D/A
2026-07-20Caddis Holdings, LP8.2%SCHEDULE 13G
2026-08-14Robert Randolph Neugebauer1.8%SCHEDULE 13G/A

Questions about who owns Fermi Inc.

Who owns Fermi Inc.?

On this page, 3 holders' latest ownership filings report 5% or more of Fermi Inc.: Toby Neugebauer (24.1%, Schedule 13G, filed 2025-11-14), Griffin Perry (9.7%, Schedule 13G/A, filed 2026-04-15) and Caddis Holdings, LP (8.2%, Schedule 13G, filed 2026-07-20).

Who are the largest shareholders of Fermi Inc.?

By the share each holder's latest filing reports, the largest holders of Fermi Inc. on this page are Toby Neugebauer (24.1%), Griffin Perry (9.7%) and Caddis Holdings, LP (8.2%).

When did Toby Neugebauer buy into Fermi Inc.?

The filings give report dates, not purchase dates. The earliest filing from Toby Neugebauer on this page is the Schedule 13G, filed 2025-11-14, reporting 24.1%.

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%); 12 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 Fermi Inc.

DateRecordFigureOur pageSource
August 14, 2026Leadership change: Lee McIntire appointed, Chief Executive Officer—Leadership changesSource
July 23, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource
July 21, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource
July 13, 2026Leadership change: Miles Everson departs, Director—Leadership changesSource
May 5, 2026Leadership change: Larry Kellerman appointed, Director—Leadership changesSource
April 30, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource
April 30, 2026Leadership change: Robert L. Masson appointed, Chief Financial Officer—Leadership changesSource
April 20, 2026Leadership change: Jeffrey S. Stein appointed, Director, and 1 more—Leadership changesSource
April 17, 2026Leadership change: Toby Neugebauer departs, Chief Executive Officer—Leadership changesSource

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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.

Cite this page

Permanent URL: https://mentionfox.com/stakes/fermi
Last updated 2026-11-08
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Who owns 5% or more of Fermi Inc.? 3 holders at 5% or more, largest Toby Neugebauer 24.1%. MentionFox, 2026-11-08. https://mentionfox.com/stakes/fermi