About Halcyon
Halcyon is an investment firm based in San Francisco, CA. Since October 2026 it has filed Form D notices for zero funds and one related vehicle.
Funds
Halcyon has zero funds on file with the SEC, plus one feeder, opportunity or co-investment vehicle. The funds have reported $0 raised.
Funds (SEC Form D)
| Fund | First filed | Amount raised | Target | Investors |
|---|
Amounts and investor counts come from each fund's latest Form D or amendment; the dated lines under an amount show what earlier filings reported. "Not set" means the fund did not give a target. Form D does not report returns.
Feeder, opportunity and co-investment vehicles (1)
| Vehicle | Kind | First filed | Amount raised | Investors | Filing |
|---|---|---|---|---|---|
| Halcyon Holdings LP | Co-investment vehicle | Oct 16, 2026 | — | — | Form D ↗ |
These vehicles usually hold a single investment or a small group of them. Their filings do not name the companies they hold.
Portfolio Companies
Companies where a Halcyon partner sits on the board, according to the company's own Form D. A board seat usually comes with an investment, but Form D does not list investors.
| Company | Location | Halcyon director | On the board | Latest raise |
|---|---|---|---|---|
| Antares Nuclear, Inc. | Torrance, CA | Alana Palmedo | 2026 | $59.9M ↗Aug 2026 |
| Kalshi Inc. | New York, NY | Matthew Huang | 2025–2026 | $1.12B ↗Apr 2026 |
| Mavria Inc | The Woodlands, TX | Alana Palmedo | 2026 | $75.0M ↗Oct 2026 |
| n3xt inc | Cheyenne, WY | Alana Palmedo | 2025 | $26.0M ↗Oct 2025 |
| Merkle Manufactory Inc. | Venice, CA | Matthew Huang | 2024 | $139.4M ↗Apr 2024 |
| Stripe, Inc. | South San Francisco, CA | Matthew Huang | 2023–2024 | $694.1M ↗Apr 2024 |
| TaxBit, Inc. | Draper, UT | Matthew Huang | 2023 | $15.6M ↗Jan 2023 |
People
Partners and officers named on Halcyon's fund filings.
Sources
- SECEvery Form D filing behind this page is linked in the tables above.