Fermi Inc.

FRMI· Nasdaq

Since Oct 22, 2025

Transactions: 13
Purchases: 0
Sales: 13
Purchase value: $0.00
Sale value: $89.48M

Values are shares multiplied by reported price when both were supplied, each trade counted once however many filers reported it.

Melissa A. Neugebauer 2020 Trust10% owner

Neugebauer Toby R10% owner

Filed Oct 15, 2026Period of report Oct 13, 20260000905148-26-004482

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleOct 14, 2026	Common Stock^F3^F4^F5	1,297,200	$3.1524	$4.09M	43,359,176	IndirectSee Footnote
SaleOct 13, 2026	Common Stock^F1^F2	2,750,000	$3.7333

Filing footnotes · 5

F1The price reported in Column 4 above reflects the weighted average sale price. This transaction was executed in multiple trades at prices ranging from $3.69 to $3.845, inclusive. The Reporting Persons (as defined herein) hereby undertake to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote 1 of this Form 4.
F2These securities are directly held by Melissa A. Neugebauer 2020 Trust (the "Trust"). Toby R. Neugebauer ("Mr. Neugebauer" and, together with the Trust, the "Reporting Persons") is the investment trustee of the Trust and may be deemed to beneficially own the securities held by the Trust. Mr. Neugebauer disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein. This report shall not be deemed an admission that Mr. Neugebauer is the beneficial owner of such securities for purposes of Sections 13 and 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose. The Reporting Persons declare that neither the filing of this statement nor anything herein shall be construed as an admission that such persons are, for the purposes of Section 13(d) or 13(g) of the Exchange Act or any other purpose, a member of a group with respect to the Issuer or securities of the Issuer.
F3The price reported in Column 4 above reflects the weighted average sale price. This transaction was executed in multiple trades at prices ranging from $3.09 to $3.215, inclusive. Mr. Neugebauer hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote 3 of this Form 4.
F4This figure has been adjusted (i) to correct the figure reported in the Form 3 the Reporting Persons filed on September 30, 2025, which should have reported that Vicksburg Investments Management LLC held 40,156,376 shares, and (ii) to reflect the transfer of 4,500,000 shares from TMNN Manager LLC, of which Mr. Neugebauer is the managing member, to Vicksburg Investments Management LLC, of which Mr. Neugebauer is also the managing member, on December 19, 2025, which transaction was exempt from Section 16 of the Exchange Act pursuant to Rule 16a-13 thereunder.

Open on SEC EDGAR

Perry James RichardDirector

Filed Jul 2, 2026Period of report Jun 30, 20260001633632-26-000001

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleJun 30, 2026	Common Stock^F1	863,637	$7.31	$6.31M	15,827,807	Direct

Uzman MesutChief Nuclear Constr. Officer

Filed Jun 4, 2026Period of report Jun 3, 20260001213900-26-065466

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleJun 3, 2026	Common Stock^F1^F2	79,032	$6.31	$498.69K	670,968

Hamilton Charles LynnChief Site Development Officer

Filed Apr 10, 2026Period of report Apr 8, 20260001213900-26-042677

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleApr 9, 2026	Common Stock^F2^F3	398,140	$4.58	$1.82M	5,525,910

Ortiz Blanes JacoboChief Operating Officer

Filed Apr 10, 2026Period of report Apr 8, 20260001213900-26-042676

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleApr 9, 2026	Common Stock^F2^F3	427,363	$4.58	$1.96M	5,469,092

Everson Miles E.Chief Financial Officer

Filed Apr 10, 2026Period of report Apr 8, 20260001213900-26-042674

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleApr 9, 2026	Common Stock^F2^F3	427,004	$4.58	$1.96M	9,969,791

Caddis Holdings, LP10% owner

Perry Griffin10% owner

Filed Apr 1, 2026Period of report Mar 30, 20260001193125-26-138384

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleMar 31, 2026	Common Stock, $0.001 par value^F4^F2^F3

P and S transaction codes only. Grants, gifts, option exercises, tax withholding, and Form 144 notices are not counted as purchases or sales. A row whose filed price fails a plausibility check, or that is not common stock, is listed but left out of the values; a trade reported by several filers is counted once.

Filing footnotes · 5

F1Represents a weighted average price calculated by a broker executing automatic "sell-to-cover" transactions to cover withholding taxes upon award vesting and share delivery. These shares were sold as part of a block trade in multiple transactions at prices ranging from $5.16 to $4.77, inclusive, and the Reporting Person undertakes to provide to Fermi Inc. (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price.
F2Represents a weighted average price calculated by a broker executing automatic "sell-to-cover" transactions to cover withholding taxes upon award vesting and share delivery. These shares were sold as part of a block trade in multiple transactions at prices ranging from $4.76 to $4.47, inclusive, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price.
F3Includes 4,200,000 shares of restricted common stock of the Issuer subject to time-based vesting conditions.
F4Reflects shares of common stock of the Issuer directly held by Gracious Endurance Trust. Mr. Hamilton is a trustee of Gracious Endurance Trust and may be deemed to beneficially own common stock of the Issuer held by Gracious Endurance Trust. Mr. Hamilton disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein. This report shall not be deemed an admission that Mr. Hamilton is the beneficial owner of such securities for purposes of Sections 13 or 16 of the Securities Exchange Act of 1934, as amended, (the "Exchange Act") or for any other purpose.
F5Reflects shares of common stock of the Issuer directly held by Steadfast Endurance Trust. Mr. Hamilton is a trustee of the Steadfast Endurance Trust and may be deemed to beneficially own common stock of the Issuer held by Steadfast Endurance Trust. Mr. Hamilton disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein. This report shall not be deemed an admission that Mr. Hamilton is the beneficial owner of such securities for purposes of Sections 13 or 16 of the Exchange Act or for any other purpose.