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Form 8-K

sec.gov

8-K — HYCROFT MINING HOLDING CORP

Accession: 0001493152-26-041967

Filed: 2026-09-09

Period: 2026-09-09

CIK: 0001718405

SIC: 1040 (GOLD & SILVER ORES)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — form8-k.htm (Primary)

EX-99.1 (ex99-1.htm)

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0001718405

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2026-09-09

2026-09-09

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UNITED

STATES

SECURITIES

AND EXCHANGE COMMISSION

Washington,

D.C. 20549

FORM

8-K

CURRENT

REPORT

Pursuant

to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date

of Report (Date of earliest event reported): September 9, 2026

HYCROFT

MINING HOLDING CORPORATION

(Exact

name of registrant as specified in its charter)

Delaware

001-38387

82-2657796

(State or other jurisdiction

of incorporation)

(Commission

File

Number)

(IRS

Employer

Identification

No.)

P.O.

Box 3030 Winnemucca, Nevada

89446

(Address

of principal executive offices)

(Zip

Code)

Registrant’s

telephone number, including area code: (775) 304-0260

(Former

name or former address, if changed since last report.)

Check

the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under

any of the following provisions (see General Instruction A.2. below):

Written

communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting

material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement

communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement

communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities

registered pursuant to Section 12(b) of the Act:

Title

of each class

Trading

Symbol(s)

Name

of each exchange on which registered

Class

A common stock, par value $0.0001 per share

HYMC

The

Nasdaq Stock Market LLC

Indicate

by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405

of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging

growth company ☐

If

an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying

with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item

7.01. Regulation FD Disclosure.

On

September 9, 2026, Hycroft Mining Holding Corporation (the “Company”) issued a press release announcing additional drill

results from the 2025-2026 Exploration Drill Program. A copy of the press release is attached as Exhibit 99.1 to this Current Report

on Form 8-K and is incorporated by reference herein.

The

information included in this Item 7.01, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section

18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that

section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or

the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. The information set forth under this

Item 7.01 shall not be deemed an admission as to the materiality of any information in this Current Report on Form 8-K.

Item

9.01 Financial Statements and Exhibits.

(d)

Exhibits

Exhibit

Number

Description

99.1

Press Release dated September 9, 2026

104

Cover

Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant

to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by

the undersigned thereunto duly authorized.

Date:

September 9, 2026

Hycroft Mining Holding Corporation

By:

/s/

Rebecca A. Jennings

Rebecca

A. Jennings

Executive

Vice President and General Counsel

EX-99.1

EX-99.1

Filename: ex99-1.htm · Sequence: 2

Exhibit

99.1

Vortex

and Brimstone Continue to Expand With Higher Grades

Vortex

returns 30.5 meters at 780.53 g/t silver and 6.1 meters at 21.12 g/t gold

Brimstone

extends north with 5.5 meters at 1,345.27 g/t silver

WINNEMUCCA,

NV, September 9, 2026 – Hycroft Mining Holding Corporation (Nasdaq: HYMC) (“Hycroft” or “the Company”)

announces additional drill results from the 2025-2026 Exploration Drill Program (the “Drill Program”) at the Hycroft Mine,

located in Nevada, USA, a Tier-1 mining jurisdiction.

Vortex

Drill Highlights:

● H26D-6090:

30.5 meters at 780.53 g/t silver and 0.49 g/t gold

○ Including

11.2 meters at 1,664.80 g/t silver and 0.85 g/t gold

○ Also

including 5.5 meters at 2,249.39 g/t silver and 1.01 g/t gold

● H26D-6166:

20.0 meters at 460.82 g/t silver and 0.32 g/t gold

○ Including

6.1 meters at 952.37 g/t silver and 0.54 g/t gold

○ Also

including 1.6 meters at 2,650.00 g/t silver and 0.91 g/t gold

● H26D-6172:

6.1 meters at 28.65 g/t silver and 21.12 g/t gold

○ Including

1.5 meters at 49.40 g/t silver and 43.00 g/t gold

Brimstone

Drill Highlights:

● H26D-6167A:

5.5 meters at 1,345.27 g/t silver and 0.56 g/t gold

○ Including

1.8 meters at 4,074.00 g/t silver and 1.43 g/t gold

Diane

Garrett, Executive Chairman and CEO, commented: “These are some of the strongest results we’ve seen from the Drill Program.

We’re not just confirming the high-grade silver system, we’re extending it and are consistently intersecting thick, continuous,

high-grade mineralization. We have also intersected a high-grade gold interval higher in the known system that we intend to follow up

on as we are seeing an increasing number of higher-grade gold intercepts in this area of Vortex. These results continue to confirm our

exploration strategy and underpin the potential for a high-grade underground mine. With the system open in all directions and at depth,

we see a clear opportunity for continued expansion and growth of these high-grade mineralized systems.”

Drill

results can be viewed in 3D using VRIFY at the following link:

https://vrify.com/meetings/recordings/9b47dc5c-bbbe-4db2-a4d5-9040ce5763bc

VRIFY

note: Drill results reflect only those reported in this press release dated September 9, 2026, along with selected historical drill results

relevant to the current targets discussed in the press release. The results presented do not represent all historical drilling completed

at Hycroft.

1

Table

1. Drill Intercept Highlights

Hole

ID

FROM

TO

INTERVAL

GRADE

(meters)

(meters)

(meters)

Ag

(g/t)

Au

(g/t)

AgEQ(g/t)

AuEQ

(g/t)

Vortex High-Grade

System

H26D-6166

481.7

501.7

20.0

460.82

0.32

484.82

6.46

Including

485.0

489.4

4.4

597.03

0.21

612.78

8.17

Including

495.6

501.7

6.1

952.37

0.54

992.87

13.24

Also Including

498.9

500.5

1.6

2,650.00

0.91

2,718.25

36.24

H26D-6090

390.1

396.3

6.2

11.17

2.08

167.17

2.23

414.2

427.3

13.1

110.24

0.25

128.99

1.72

Including

417.4

419.8

2.4

392.61

0.42

424.11

5.65

435.4

465.9

30.5

780.53

0.49

817.28

10.90

Including

453.5

464.7

11.2

1,664.80

0.85

1,728.55

23.05

Also Including

453.5

459.0

5.5

2,249.39

1.01

2,325.14

31.00

H26D-6172

293.2

299.3

6.1

28.65

21.12

1,612.65

21.50

Including

296.3

297.8

1.5

49.40

43.00

3,274.40

43.66

335.7

358.7

23.0

137.23

0.69

188.98

2.52

369.1

381.4

12.3

112.91

0.25

131.66

1.76

414.8

436.5

21.7

121.94

0.89

188.69

2.52

Including

421.4

424.0

2.6

515.98

0.35

542.23

7.23

446.6

457.7

11.1

177.97

0.62

224.47

2.99

H26D-6173

370.9

377.0

6.1

33.99

2.63

231.24

3.08

389.3

396.7

7.4

134.13

0.29

155.88

2.08

Including

394.0

396.7

2.7

284.05

0.38

312.55

4.17

Brimstone High-Grade System

H26D-6167A

309.9

315.4

5.5

1,345.27

0.56

1,387.27

18.50

Including

313.6

315.4

1.8

4,074.00

1.43

4,181.25

55.75

Note:

$3,600/oz gold and $48/oz silver are used for gold equivalent (AuEQ) and silver equivalent (AgEQ) numbers

2

Vortex

Results

Hole

H26D-6090 and H26D-6166 returned 30.5 meters at 780.53 g/t silver and 20.0 meters at 460.82 g/t silver, respectively. Both were drilled

offsetting H25D-6070 and H25D-6072 and connect that 2025 step-out drilling to the main Vortex trend. Mineralization remains open to the

west, down dip along the Central and Albert faults, currently interpreted as two of the more productive feeder structures at Vortex,

and to the north and south.

Holes

H26D-6172 tested the northern flank of Vortex and hit four separate silver intervals down hole in the footwall of the Break fault: 23.0

meters at 137.23 g/t silver and 0.69 g/t gold, 12.3 meters at 112.91 g/t silver and 0.25 g/t gold, 21.7 meters at 121.94 g/t silver and

0.89 g/t gold, and 11.1 meters at 177.97 g/t silver and 0.62 g/t gold, demonstrating the vertical continuity and extent of Vortex in

this area.

H26D-6173,

drilled down dip to the west of H26D-6172, returned 7.4 meters at 134.13 g/t silver, including 2.7 meters at 284.05 g/t silver, and 6.1

meters at 33.99 g/t silver and 2.63 g/t gold. These results further extend the high-grade continuity along the northern flank of the

system.

Hole

H26D-6172 also returned a high-grade gold interval higher in the hole, 6.1 meters at 21.12 g/t gold, including 1.5 meters at 43.00 g/t

gold. This intercept lies higher in the Vortex high-grade silver system. With an increasing number of higher-grade gold intercepts in

this area, the Company is planning follow-up drilling to determine the orientation and extent of this mineralization and whether it represents

a separate high-grade gold system.

Figure

1.

Vortex

High-Grade System

Brimstone

Results

At

Brimstone, the strategy is to develop the high-grade stockwork vein zone, test the controls on mineralization to the north, south and

down dip, and identify and develop high-grade opportunities. Hole H26D-6167A was designed to test and extend high-grade mineralization

to the north. The hole encountered a 30-meter silicified breccia that hosted high-grade silver, intersecting 5.5 meters at 1,345.27 g/t

silver, including an impressive 1.8 meters at 4,074.00 g/t silver. This intercept opens up additional target opportunities and follow-up

drilling is being planned.

3

Figure

2.

Brimstone

High-Grade System

Qualified

Person

The

Company’s Qualified Person for exploration is Alex Davidson, Vice President, Exploration, who has reviewed and approved the scientific

and technical information contained in this news release.

4

About

Hycroft Mining Holding Corporation

Hycroft

Mining Holding Corporation is a US-based gold and silver company exploring and developing the Hycroft Mine, among the world’s largest

precious metals deposits, located in Nevada, a Tier-1 mining jurisdiction. With a long history of heap leach operations, Hycroft is advancing

to the next phase of operations for processing sulfide mineralization. In addition, Hycroft is engaged in a robust exploration drill

program (2025-2026 Exploration Drill Program) to expand and advance the two new high-grade silver systems Brimstone and Vortex. These

discoveries represent a significant value driver for the Hycroft Mine.

For

Further Information

Investor

Relations:

E:

info@hycroftmining.com

P:

775-245-0564

Media:

E:

media@hycroftmining.com

P:

775-245-0564

www.hycroftmining.com

Cautionary

Note Regarding Forward-Looking Statements

This

press release contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended,

Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. All statements,

other than statements of historical fact, included in this press release and in public statements by our officers or representatives

that address activities, events or developments that we expect or anticipate will or may occur in the future are forward-looking statements.

These include, but are not limited to, statements regarding future business strategy, plans and goals, competitive strengths, the advancement

and development of the Hycroft Mine, the results and implications of metallurgical analysis and test work, and the expansion and growth

of our business.

Forward-looking

statements are often identified by future or conditional words such as “estimate,” “plan,” “anticipate,”

“expect,” “intend,” “believe,” “target,” “budget,” “may,” “can,”

“will,” “would,” “could,” “should,” “seeks,” “scheduled to” and

similar words or expressions but the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements

are based on current expectations, estimates and projections that involve a number of risks and uncertainties, which could cause actual

results to differ materially from those reflected in the statements. The risks include, but are not limited to: (i) risks related to

changes in our operations at the Hycroft Mine, including risks associated with the cessation of mining operations at the Hycroft Mine;

uncertainties concerning estimates of mineral resources; risks related to the lack of a completed feasibility study; risks related to

metallurgical test work and process development; and risks related to our ability to re-establish commercially feasible mining and processing

operations; and (ii) industry-related risks, including fluctuations in the price of gold and silver; the commercial success of, and risks

related to, our exploration and development activities; uncertainties and risks related to our reliance on contractors and consultants;

and the availability and cost of equipment, supplies, energy or reagents.

Any

exploration target described in this press release does not represent, and should not be construed to be, an estimate of a mineral resource

or mineral reserve. Ranges of potential tonnage and grade (or quality) of an exploration target are conceptual in nature; there has been

insufficient exploration of the relevant property or properties to estimate a mineral resource; and it is uncertain if further exploration

will result in the estimation of a mineral resource.

These

and other risks may cause actual results to differ materially from those expressed or implied by the forward-looking statements, and

the occurrence of one or more of these events or circumstances, alone or in combination with others, may have a material adverse effect

on our business, cash flows, financial condition and results of operations. Please see the “Risk Factors” outlined in our

Annual Report on Form 10-K for the year ended December 31, 2025, and in other reports filed with the SEC, for more information about

these and other risks.

Given

these risks and uncertainties, you are cautioned not to place undue reliance on these forward-looking statements. Although we have attempted

to identify important factors that could cause actual results to differ materially from those described in forward-looking statements,

there may be other factors that cause results not to be as anticipated, estimated or intended. Although these forward-looking statements

are based on assumptions that we believe are reasonable when made, forward-looking statements are not guarantees of future performance

and actual results, performance or achievements may differ materially from those made in or suggested by the forward-looking statements

in this press release.

Any

forward-looking statements made in this press release speak only as of the date of this press release. We undertake no obligation to

update these forward-looking statements or to publicly announce the results of any revisions to any of those statements to reflect future

events or developments, except as required by law.

5

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v3.26.1

Cover

Sep. 09, 2026

Cover [Abstract]

Document Type

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Document Period End Date

Sep. 09, 2026

Entity File Number

001-38387

Entity Registrant Name

HYCROFT

MINING HOLDING CORPORATION

Entity Central Index Key

0001718405

Entity Tax Identification Number

82-2657796

Entity Incorporation, State or Country Code

DE

Entity Address, Address Line One

P.O.

Box 3030

Entity Address, City or Town

Winnemucca

Entity Address, State or Province

NV

Entity Address, Postal Zip Code

89446

City Area Code

(775)

Local Phone Number

304-0260

Written Communications

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- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

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dei_TradingSymbol

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- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

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