0001918102-26-000001.txt : 20260218 0001918102-26-000001.hdr.sgml : 20260218 20260218125414 ACCESSION NUMBER: 0001918102-26-000001 CONFORMED SUBMISSION TYPE: D PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: Rule 506(b) provides a "safer harbor" for a private offering FILED AS OF DATE: 20260218 DATE AS OF CHANGE: 20260218 EFFECTIVENESS DATE: 20260218 FILER: COMPANY DATA: COMPANY CONFORMED NAME: DEEP FISSION, INC. CENTRAL INDEX KEY: 0001918102 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC SERVICES [4911] ORGANIZATION NAME: 01 Energy & Transportation EIN: 874265302 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-573851 FILM NUMBER: 26646859 BUSINESS ADDRESS: STREET 1: 2831 GARBER STREET CITY: BERKELEY STATE: CA ZIP: 94705 BUSINESS PHONE: (707) 400-0778 MAIL ADDRESS: STREET 1: 2831 GARBER STREET CITY: BERKELEY STATE: CA ZIP: 94705 FORMER COMPANY: FORMER CONFORMED NAME: Surfside Acquisition Inc. DATE OF NAME CHANGE: 20220317 D 1 primary_doc.xml X0708 D LIVE 0001918102 DEEP FISSION, INC. 2001 Addison Street Suite 300 BERKELEY CA CALIFORNIA 94704 (707) 400-0778 DELAWARE Surfside Acquisition Inc. Corporation true 2021 Elizabeth A. Muller c/o Deep Fission, Inc. 2001 Addison Street, Suite 300 Berkeley CA CALIFORNIA 94704 Executive Officer Director Richard A. Muller c/o Deep Fission, Inc. 2001 Addison Street, Suite 300 Berkeley CA CALIFORNIA 94704 Executive Officer William Mark Schmitz c/o Deep Fission, Inc. 2001 Addison Street, Suite 300 Berkeley CA CALIFORNIA 94704 Executive Officer Thomas S. Glanville c/o Deep Fission, Inc. 2001 Addison Street, Suite 300 Berkeley CA CALIFORNIA 94704 Director Michael S. Brasel c/o Deep Fission, Inc. 2001 Addison Street, Suite 300 Berkeley CA CALIFORNIA 94704 Executive Officer Blake Janover c/o Deep Fission, Inc. 2001 Addison Street, Suite 300 Berkeley CA CALIFORNIA 94704 Director Leslie Goldman Tepper c/o Deep Fission, Inc. 2001 Addison Street, Suite 300 Berkeley CA CALIFORNIA 94704 Director Jonathon Angell c/o Deep Fission, Inc. 2001 Addison Street, Suite 300 Berkeley CA CALIFORNIA 94704 Director Jon Gordon c/o Deep Fission, Inc. 2001 Addison Street, Suite 300 Berkeley CA CALIFORNIA 94704 Executive Officer Other Energy Decline to Disclose 06b false 2026-02-05 false true true true false 9990 Seaport Global Securities LLC 000116270 None None 360 Madison Ave 22nd Floor New York NY NEW YORK 10017 MN MINNESOTA IL ILLINOIS TX TEXAS FL FLORIDA NY NEW YORK CO COLORADO SC SOUTH CAROLINA CT CONNECTICUT NC NORTH CAROLINA NE NEBRASKA ID IDAHO NJ NEW JERSEY CA CALIFORNIA true PHX Financial, Inc., d/b/a Phoenix Financial Services 000144403 None None 100 Wall Street Floor 10 New York NY NEW YORK 10005 TX TEXAS FL FLORIDA NV NEVADA WA WASHINGTON NY NEW YORK VA VIRGINIA CO COLORADO MA MASSACHUSETTS LA LOUISIANA ND NORTH DAKOTA MD MARYLAND IA IOWA OH OHIO MI MICHIGAN NJ NEW JERSEY CA CALIFORNIA true Network 1 Financial Securities, Inc. 000013577 None None The Galleria, Suite 241 2 Bridge Avenue Red Bank NJ NEW JERSEY 07701 IL ILLINOIS TX TEXAS IN INDIANA FL FLORIDA KS KANSAS NY NEW YORK KY KENTUCKY SC SOUTH CAROLINA PA PENNSYLVANIA WI WISCONSIN MA MASSACHUSETTS LA LOUISIANA MD MARYLAND AZ ARIZONA OH OHIO MI MICHIGAN NJ NEW JERSEY OK OKLAHOMA CA CALIFORNIA true The Benchmark Company, LLC 000022982 None None 150 E 58th Street 17th Floor New York NY NEW YORK 10155 DE DELAWARE IL ILLINOIS TX TEXAS FL FLORIDA WA WASHINGTON ID IDAHO NY NEW YORK CO COLORADO CA CALIFORNIA true 79999995 79999995 0 Excludes amounts receivable upon exercise of warrants to purchase 129,418 shares of common stock with the exercise price of $15.00 per share issued to the placement agents; such warrants have not yet been exercised. false 223 3569284 0 0 false DEEP FISSION, INC. /s/William (Mark) Schmitz William (Mark) Schmitz Chief Financial Officer 2026-02-18