Greymatter Capital
Venture Capital Exempt reporting adviser
Legal name: Greymatter Braintrust LLC
AUM
$26.3M
Private fund assets
Private funds
7
Venture Capital 7
Private fund assets
$26.3M
Gross asset value
Employees
—
Last Form D raise
Nov 2025
Most recent fund filing
From SEC Form ADV filing (filed Apr 17, 2026). View on SEC
People
Owners and executive officers named on the firm's SEC Form ADV.
No people listed on the filing.
Funds(7)
Private funds reported on Form ADV, with amounts raised from the funds' SEC Form D filings.
| Fund | Type | Gross assets | Raised (Form D) | Investors | Last Form D | Recency |
|---|---|---|---|---|---|---|
| River Health Dec 2024 A Series of Cgf2021 LLC | Venture Capital | $470K | $470K | 10 | Nov 2025 | Warm |
| Familywell Health Oct SPV A Series of Cgf2021 LLC | Venture Capital | $316K | $316K | 6 | Nov 2025 | Warm |
| Luna Preseed A Series of Cgf2021 LLC | Venture Capital | $175K | $175K | 4 | Oct 2025 | Cool |
| Kibu Mar 2025 A Series of Cgf2021 LLC | Venture Capital | $385K | $385K | 5 | May 2025 | Cool |
| Reflex AI Series A Apr 2024 A Series of Cgf2021 | Venture Capital | $180K | $180K | 4 | Apr 2025 | Cool |
| Greymatter Fund I, LP | Venture Capital | $24.7M | $25.3M | 59 | Jan 2025 | Cool |
| Pelago Feb 2024, A Series of Cgf2021 LLC | Venture Capital | $140K | $140K | 5 | Apr 2024 | Cold |
Board seats
Companies whose SEC Form D filings name one of this firm's people as a director, matched by name and office ZIP code.
No board seats matched from SEC filings yet.
Regulatory identifiers
- CRD number
- 331229
- SEC file number
- 802-136154
Sources
- SEC Form ADV Oct 14, 2026