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BCS

Initial Beneficial Ownership · 3

General Fusion Group Ltd.

GFUZNASDAQEQUITYCurrent

Initial Beneficial Ownership

Filed Jul 20, 2026Accepted Jul 20, 2026, 9:30 PM EDTFiling CIK 2074850Accession 0001845960-26-000004
Share

Structured filing — 3

form3-07212026_010748.xml

Open full document ↗

Filing details

Report period
2026-07-10
Issuer
General Fusion Group Ltd.
Issuer CIK
0002074850
Trading symbol
GFUZ

Reporting owner 1

Name
de Boer Klaas
Reporting owner CIK
0001845960
Relationship
Director
Address
6020 RUSS BAKER WAY, RICHMOND, BRITISH COLUMBIA, CANADA, A1, V7B 1B4

Derivative holdings

Derivative holdings · 15 reported rows
SecurityConversion / exercise priceExercisableExpiresUnderlying securityUnderlying sharesOwnership
Stock Option (right to buy)4.50[F1]2030-03-03Common Shares856D
Stock Option (right to buy)4.50[F1]2030-03-03Common Shares4,276D
Stock Option (right to buy)4.50[F1]2030-06-30Common Shares1,283D
Stock Option (right to buy)6.67[F1]2031-03-17Common Shares856D
Stock Option (right to buy)6.67[F1]2031-04-13Common Shares1,711D
Stock Option (right to buy)5.44[F2]2034-09-11Common Shares5,131D
Stock Option (right to buy)0.53[F3]2035-08-06Common Shares153,459D
Stock Option (right to buy)8.95[F4]2036-05-27Common Shares29,074D
Earnout Options (right to buy)0.01[F1][F5]2030-03-03Earnout Shares1,068D
Earnout Options (right to buy)0.01[F1][F5]2030-06-30Earnout Shares267D
Earnout Options (right to buy)0.01[F1][F5]2031-03-17Earnout Shares178D
Earnout Options (right to buy)0.01[F1][F5]2031-04-13Earnout Shares356D
Earnout Options (right to buy)0.01[F2][F5]2031-07-10Earnout Shares1,068D
Earnout Options (right to buy)0.01[F3][F5]2031-07-10Earnout Shares31,970D
Earnout Options (right to buy)0.01[F4][F5]2031-07-10Earnout Shares6,056D
Table key
D
Direct

Footnotes

F2
These options vested as to 25% of the underlying shares on the first anniversary of the original date of grant by the Legacy Company, or in the case of Earnout Options, the first anniversary of the original date of grant of the associated option award, with the remaining shares vesting in 12 substantially equal quarterly installments thereafter.↩ 1↩ 2
F3
These options vested as to 50% of the underlying shares on the original date of grant by General Fusion Inc. (the "Legacy Company"), or in the case of Earnout Options, the first anniversary of the original date of grant of the associated option award, with the remaining shares vesting in 12 substantially equal quarterly installments thereafter. All underlying shares that vested prior to the closing of the Legacy Company's business combination with Spring Valley Acquisition Corp. III (the "Business Combination") remained vested following their exchange for options of General Fusion Group Ltd. (the "Company"), and the Earnout Options associated with each option award retained the vesting history of the associated option award.↩ 1↩ 2
F4
These options vest as to 25% of the underlying shares on the first anniversary of the original date of grant by the Legacy Company, or in the case of Earnout Options, the first anniversary of the original date of grant of the associated option award, with the remaining shares vesting in 12 substantially equal quarterly installments thereafter.↩ 1↩ 2
F5
Earnout Shares, including the Earnout Shares underlying the Earnout Options, consist of a substantially equal number of Class A Earnout Shares, Class B Earnout Shares, and Class C Earnout Shares, which will automatically convert into common shares of the Company if, on or before July 10, 2031, the volume weighted average price of the Company's common shares equals or exceeds each of $15.00, $20.00 and $25.00, respectively, for any 20 trading days within any period of 30 consecutive trading days.↩ 1↩ 2↩ 3↩ 4↩ 5↩ 6↩ 7

Remarks

Exhibit List: Exhibit 24-Power of Attorney

Signature 1

Signed
/s/ Griffin D. Foster, as attorney-in-fact for Klaas de Boer
Date
2026-07-20

Filed exhibits

Company context

General Fusion (NASDAQ: GFUZ) is a fusion technology development company. The Company aims to deliver economical, carbon-free fusion energy through its practical Magnetized Target Fusion (“MTF”) technology, an engineering-driven approach to fusion energy. General Fusion’s commercialization program is anchored by LM26, the world’s first commercially relevant-scale MTF demonstration machine. The Company is working toward the commercial deployment of fusion power in the mid-2030s. General Fusion is the first publicly listed fusion company and TIME’s No. 1 GreenTech Company of 2026. For more information, visit generalfusion.com or follow General Fusion on LinkedIn, YouTube, and X.

Current securities

Historical securities (3)

Recent company filings

  1. 424B3 filingOct 8, 2026
  2. 6-K filingOct 8, 2026
  3. EFFECT filingOct 6, 2026
  4. 424B3 filingOct 6, 2026
  5. 6-K filingSep 21, 2026

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