Deep Fission, Inc. Files 8-K

Deep Fission, Inc. 8-K Filing Summary
FieldDetail
CompanyDeep Fission, Inc.
Form Type8-K
Filed DateDec 4, 2025
Risk Levellow
Pages2
Reading Time2 min
Sentimentneutral

Sentiment: neutral

Topics: 8-K, disclosure, company-update

TL;DR

Deep Fission (DEEP) filed an 8-K on 12/4/25. Check for material updates.

AI Summary

Deep Fission, Inc. filed an 8-K on December 4, 2025, reporting information under Regulation FD and including financial statements and exhibits. The company, formerly known as Surfside Acquisition Inc. until March 17, 2022, is incorporated in Delaware and headquartered in Berkeley, California.

Why It Matters

This filing indicates that Deep Fission, Inc. is providing updated information to the SEC, which could include material events or financial disclosures relevant to investors.

Risk Assessment

Risk Level: low — The filing is a standard 8-K for a public company, indicating routine disclosure rather than an immediate, high-impact event.

Key Numbers

  • 1231 — Fiscal Year End (Indicates the end of the company's annual financial reporting cycle.)

Key Players & Entities

  • Deep Fission, Inc. (company) — Registrant
  • Surfside Acquisition Inc. (company) — Former company name
  • 20251204 (date) — Report date
  • 2831 Garber Street Berkeley , California (location) — Principal executive offices
  • 000-56407 (identifier) — Commission File Number

FAQ

What specific items are being disclosed in this 8-K filing?

The filing indicates disclosure under Regulation FD and includes Financial Statements and Exhibits, but the specific content of these items is not detailed in the provided text.

When did Deep Fission, Inc. change its name from Surfside Acquisition Inc.?

The date of the name change from Surfside Acquisition Inc. to Deep Fission, Inc. was March 17, 2022.

What is the primary business of Deep Fission, Inc. based on its SIC code?

Deep Fission, Inc. is classified under Standard Industrial Classification code 4911, which corresponds to Electric Services.

Where are Deep Fission, Inc.'s principal executive offices located?

The principal executive offices of Deep Fission, Inc. are located at 2831 Garber Street, Berkeley, California, 94705.

What is the Commission File Number for Deep Fission, Inc.?

The Commission File Number for Deep Fission, Inc. is 000-56407.

Filing Stats: 475 words · 2 min read · ~2 pages · Grade level 10.7 · Accepted 2025-12-04 13:42:22

Filing Documents

01 – Regulation FD Disclosure

Item 7.01 – Regulation FD Disclosure On December 4, 2025, Deep Fission, Inc. (the "Company") issued a press release announcing that it has selected the Great Plains Industrial Park in Parsons, Kansas as the site of its advanced reactor pilot project under the U.S. Department of Energy's Reactor Pilot Program. The Company also announced that it will hold a groundbreaking ceremony on December 9, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. The information furnished pursuant to Item 7.01 (including Exhibit 99.1) shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section.

01 Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits Exhibit No. Description 99.1 Press Release issued by Deep Fission, Inc., dated December 4, 2025 104 Cover Page Interactive Data File (Inline XBRL) SIGNATURE 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 hereunto duly authorized. DEEP FISSION, INC. Date: December 4, 2025 /s/ JON GORDON Jon Gordon General Counsel & Secretary

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