MAINSAIL MANAGEMENT COMPANY, LLC — 13F Holdings & Portfolio
CIK 1883367 · latest 13F-HR filed 2025-11-06
MAINSAIL MANAGEMENT COMPANY, LLC manages $66.0M in 13F-reported U.S. long-equity assets across 1 reported positions as of its 2025-09-30 13F-HR filing. Its largest disclosed positions are BRLT (100.00%). Quarter over quarter (versus its 2025-06-30 filing) the fund opened 0 new positions, exited 1, added to 1, and trimmed 0.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$66.0M
Long-equity book
1
Distinct positions
2025-09-30
Filed 2025-11-06
+0 / −1 / ↑1 / ↓0
vs 2025-06-30
| Name | Title / Status | Ownership | Type |
|---|
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | BRILLIANT EARTH GROUP INC | BRLT | 109504100 | $66.0M | 100.00% | 31,898,071 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2025-09-30 | 2025-11-06 | $66.0M | 1 | 0001883367-25-000006 |
| 2025-06-30 | 2025-08-04 | $66.1M | 2 | 0001883367-25-000004 |