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Company research

Holtec Nuclear Corp

CIK 2104277Updated Oct 6, 2026

No exchange listing on record for this SEC filer. Coverage is drawn from its filings.

Filing activity

SEC EDGAR
Latest filing

RW · Sep 25, 2026

6 filings on record · RW, S-1/A, S-1, DRS/A.

About the company

Holtec is a U.S.-headquartered, multinational technology company specializing in the energy sector, with its principal focus on nuclear power generation and an expanding presence in adjacent clean energy generation solutions and long-duration energy storage. Our founder, Dr. Krishna P. Singh, a widely recognized inventor and entrepreneur, has led the Company since its inception in 1986. We believe that our established position in multiple sectors of the nuclear power industry has been facilitated by our sustained development of innovative technologies, covered by 203 granted patents worldwide as of June 30, 2026, that help protect our IP from unauthorized appropriation by others, as well as other confidentially held IP. Our innovative solutions extend across a full spectrum of disciplines applicable to nuclear power plants, including design, engineering validations, licensing, manufacturing, site construction, commissioning, operations and decommissioning. We provide SSCs and specialty services to the nuclear power industry for our global clients, many of whom are Fortune 500 companies and among the largest in their respective countries. As a vertically integrated, turnkey nuclear …

S-1/A · 2026-09-08 · 0001193125-26-384287

Company description from the cited filing.

Recent filings

  1. RW filing

    RW · 2026-09-25 · 0001193125-26-402799

  2. S-1/A filing

    S-1/A · 2026-09-08 · 0001193125-26-384287

  3. S-1/A filing

    S-1/A · 2026-08-24 · 0001193125-26-361496

  4. S-1 filing

    S-1 · 2026-07-10 · 0001193125-26-301023

  5. DRS/A filing

    DRS/A · 2026-06-08 · 0001193125-26-260319

Show 1 more recent filings
  1. DRS/A filing

    DRS/A · 2026-04-24 · 0001193125-26-177567

Offerings

Registration 333-297395

S-1/A · 2026-09-08 · 0001193125-26-384287

Terms from the governing filing for this registration; not a claim that the offering is open today.

Underwriters: Goldman Sachs & Co. LLC, Morgan Stanley & Co. LLC, BMO Capital Markets Corp., Oppenheimer & Co. Inc., Citigroup, BofA Securities, Morgan Stanley, BMO Capital Markets, Oppenheimer & Co., J.P. Morgan Securities LLC, Guggenheim Securities, LLC, Citigroup Global Markets Inc., BofA Securities, Inc.

Filing attachments

d40440dex107.htm · S-1 · 2026-07-10

Exhibit 10.7 FORM OF HOLTEC NUCLEAR CORPORATION 2026 EMPLOYEE STOCK PURCHASE PLAN Purpose ─────────── The purpose of this Holtec Nuclear Corporation 2026 Employee Stock Purchase Plan (the “Plan”) is to provide employees of the Company and its Designated Subsidiaries with an opportunity to purchase Common Stock through accumulated Contributions. Definitions. ──────────────── As used in the Plan, the following terms shall have the meanings set forth below: (a) “Administrator” means t…

S-1 · 2026-07-10 · 0001193125-26-301023

Read attachment ↗
d40440dex41.htm · S-1 · 2026-07-10

Exhibit 4.1 REGISTRATION RIGHTS AGREEMENT BY AND AMONG HOLTEC NUCLEAR CORPORATION AND CERTAIN STOCKHOLDERS DATED AS OF [●], 2026 1 This REGISTRATION RIGHTS AGREEMENT (as it may be amended from time to time in accordance with the terms hereof, this “Agreement”), dated as of [●], 2026, is made by and among: i. Holtec Nuclear Corporation, a Delaware corporation (together with any predecessor entities, the “Company”); ii.   Holtec Holdings, Inc., a Delaware corporation (“Holtec Holdings”);…

S-1 · 2026-07-10 · 0001193125-26-301023

Read attachment ↗
d40440dex991.htm · S-1 · 2026-07-10

Exhibit 99.1 CONSENT TO BE NAMED I hereby confirm my consent to being named as a person who will become a director of Holtec Nuclear Corporation (the “Company”), in the Registration Statement on Form S-1, including any and all amendments and post-effective amendments thereto and any amendments filed under Rule 462(b) increasing the number of shares for which registration is sought (collectively, the “Registration Statement”), relating to the proposed initial public offering of the Company’s Cl…

S-1 · 2026-07-10 · 0001193125-26-301023

Read attachment ↗
d40440dex992.htm · S-1 · 2026-07-10

Exhibit 99.2 CONSENT TO BE NAMED I hereby confirm my consent to being named as a person who will become a director of Holtec Nuclear Corporation (the “Company”), in the Registration Statement on Form S-1, including any and all amendments and post-effective amendments thereto and any amendments filed under Rule 462(b) increasing the number of shares for which registration is sought (collectively, the “Registration Statement”), relating to the proposed initial public offering of the Company’s Cl…

S-1 · 2026-07-10 · 0001193125-26-301023

Read attachment ↗

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