Valued at $279.9M at its Series B, Dec 2025. Nothing has traded since.
- ·Price per share on 3 rounds
- ·1 investment vehicle formed around Antares Nuclear: sponsors, sizes, dates
- ·Direct lines for 4 people on the team
Membership and data by Private Market View
Valuation timeline
3 priced rounds · 32 daily marks since · Oct 2023 – Oct 2026Membership and data by Private Market View
Antares Nuclear funding history
4 rounds| Date | Round | Raised | Post-money | $/share |
|---|---|---|---|---|
| Jul 2026 | Series C | $470.0M | ▮ | ▮ |
| Dec 2025 | Series B | $96.0M | ▮ | ▮ |
| Oct 2024 | Series A | $30.0M | ▮ | ▮ |
| Oct 2023 | Seed Round | $8.1M | ▮ | ▮ |
Membership and data by Private Market View
Antares Nuclear valuation
Antares Nuclear was valued at $280 million at its Series B in Dec 2025. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.
Recent activity
In the last 90 days, Antares Nuclear's record added 1 funding round.
How much has Antares Nuclear raised?
Antares Nuclear has raised $604 million across 4 recorded rounds since 2023. The largest was a $96 million Series B in Dec 2025; the most recent was a $470 million Series C in Jul 2026. 3 of the rounds disclosed a post-money valuation.
Antares Nuclear has filed 3 Form Ds with the SEC since 2023, most recently in Sep 2025 ($51 million sold to 31 investors).
Institutional holders and vehicles
In the last 12 months, 1 investment vehicle was formed to buy Antares Nuclear shares, reporting $104,504 sold to 1 investor, per SEC Form D filings (most recent Dec 2025).
How Antares Nuclear's valuation is determined
Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.
For Antares Nuclear, the most current credible signal sets the number and the older ones confirm it: a live secondary-market price first, then three or more recent prints, then institutional fund marks, and otherwise the last priced round, which never decays. The valuation is the last round’s post-money moved by the price change since that round, so no share count is assumed. Today it is set by its last priced round. Question about this number? Full methodology →
Frequently asked about Antares Nuclear
- What is Antares Nuclear worth?
- Antares Nuclear is valued at $279.9M as of Oct 2026. Valued at $279.9M at its Series B, Dec 2025. Nothing has traded since.
- How much has Antares Nuclear raised?
- Antares Nuclear has raised $604.1M in total funding across 4 recorded rounds.
- When did Antares Nuclear last raise?
- Antares Nuclear last raised in Jul 2026 (Series C), raising $470.0M.