Here are the 10-Q quarterly reports from Deep Fission, Inc. (FISN) in our archive since June 2025, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 10-Q covers the quarterly report filed between annual reports, so if you follow FISN and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full FISN filings page.
Deep Fission, Inc., a pre‑revenue nuclear energy technology company developing a small modular “Gravity Reactor” in deep boreholes, reported a substantially larger loss for the quarter ended June 30, 2026.
Operating expenses rose to $31.6 million from $2.1 million a year earlier, driven by higher research and development and general and administrative spending, including increased stock‑based compensation. Net loss for the quarter was $31.0 million, and for the first six months of 2026 it totaled $52.4 million, compared with $6.9 million in the prior‑year period.
Cash and cash equivalents increased to $93.0 million from $23.7 million at December 31, 2025, primarily from an $80.0 million February 2026 private placement and $34.3 million in net IPO proceeds in June 2026. Despite this, management states that current cash and the recent offering proceeds will not fund planned operations for 12 months, and it cites substantial doubt about the company’s ability to continue as a going concern absent additional financing.