Granite FO LLC — 13F Holdings & Portfolio
CIK 2034090 · latest 13F-HR filed 2026-05-12
Granite FO LLC manages $169.0M in 13F-reported U.S. long-equity assets across 593 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are BRK.A (11.47%), BRK.B (4.39%), MU (4.37%).
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.
$169.0M
Long-equity book
593
Distinct positions
2026-03-31
Filed 2026-05-12
+0 / −0 / ↑0 / ↓0
vs 2026-03-31
| 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 | BERKSHIRE HATHAWAY INC DEL | BRK.A | 084670108 | $19.4M | 11.47% | 27 | SH |
| 2 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $7.4M | 4.39% | 15,470 | SH |
| 3 | MICRON TECHNOLOGY INC | MU | 595112103 | $7.4M | 4.37% | 21,849 | SH |
| 4 | BERKSHIRE HATHAWAY INC DEL | BRK.A | 084670108 | $4.3M | 2.55% | 6 | SH |
| 5 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $3.6M | 2.15% | 5,585 | SH |
| 6 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $3.4M | 1.98% | 5,153 | SH |
| 7 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $2.9M | 1.71% | 4,452 | SH |
| 8 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $2.9M | 1.71% | 4,452 | SH |
| 9 | GOLUB CAP BDC INC | GBDC | 38173M102 | $2.8M | 1.64% | 219,025 | SH |
| 10 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $2.7M | 1.58% | 4,100 | SH |
| 11 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $2.6M | 1.56% | 12,250 | SH |
| 12 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $2.2M | 1.29% | 10,158 | SH |
| 13 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $2.2M | 1.29% | 10,158 | SH |
| 14 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $1.8M | 1.05% | 2,727 | SH |
| 15 | AMAZON COM INC | AMZN | 023135106 | $1.7M | 1.02% | 8,300 | SH |
| 16 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $1.7M | 1.02% | 8,020 | SH |
| 17 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $1.5M | 0.89% | 2,320 | SH |
| 18 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $1.4M | 0.83% | 6,550 | SH |
| 19 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $1.3M | 0.76% | 5,984 | SH |
| 20 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $1.2M | 0.72% | 1,875 | SH |
| 21 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $1.2M | 0.71% | 1,850 | SH |
| 22 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $1.2M | 0.71% | 1,845 | SH |
| 23 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $1.2M | 0.69% | 5,415 | SH |
| 24 | ALPHABET INC | GOOG | 02079K107 | $1.1M | 0.66% | 3,900 | SH |
| 25 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $1.1M | 0.66% | 5,200 | SH |
| 26 | ISHARES TR | IVV | 464287200 | $1.1M | 0.66% | 1,695 | SH |
| 27 | ARES CAPITAL CORP | ARCC | 04010L103 | $1.1M | 0.65% | 60,595 | SH |
| 28 | VANGUARD WHITEHALL FDS | VYM | 921946406 | $1.1M | 0.63% | 7,200 | SH |
| 29 | APPLE INC | AAPL | 037833100 | $1.1M | 0.63% | 4,200 | SH |
| 30 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $1.0M | 0.62% | 1,612 | SH |
| 31 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $1.0M | 0.61% | 1,595 | SH |
| 32 | VANGUARD INDEX FDS | VOE | 922908512 | $1.0M | 0.61% | 5,600 | SH |
| 33 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $1.0M | 0.60% | 1,550 | SH |
| 34 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $972.8K | 0.58% | 2,030 | SH |
| 35 | GOLUB CAP BDC INC | GBDC | 38173M102 | $926.1K | 0.55% | 73,151 | SH |
| 36 | VANGUARD INDEX FDS | VOO | 922908363 | $869.4K | 0.51% | 1,455 | SH |
| 37 | STATE STR SPDR S&P MIDCAP 40 | MDY | 78467Y107 | $863.5K | 0.51% | 1,400 | SH |
| 38 | ISHARES TR | DVY | 464287168 | $854.4K | 0.51% | 5,643 | SH |
| 39 | VANGUARD WHITEHALL FDS | VYM | 921946406 | $851.6K | 0.50% | 5,750 | SH |
| 40 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $817.2K | 0.48% | 3,800 | SH |
| 41 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $806.4K | 0.48% | 1,240 | SH |
| 42 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $763.5K | 0.45% | 3,550 | SH |
| 43 | ISHARES TR | IJR | 464287804 | $760.8K | 0.45% | 6,120 | SH |
| 44 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $720.5K | 0.43% | 3,350 | SH |
| 45 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $709.7K | 0.42% | 3,300 | SH |
| 46 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $699.1K | 0.41% | 1,075 | SH |
| 47 | VANGUARD WHITEHALL FDS | VYM | 921946406 | $698.3K | 0.41% | 4,715 | SH |
| 48 | ELI LILLY & CO | LLY | 532457108 | $685.2K | 0.41% | 745 | SH |
| 49 | VANGUARD WHITEHALL FDS | VYM | 921946406 | $681.3K | 0.40% | 4,600 | SH |
| 50 | VANGUARD WHITEHALL FDS | VYM | 921946406 | $681.3K | 0.40% | 4,600 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-04-10 | $169.0M | 593 | 0001420506-26-000660 |
| 2026-03-31 | 2026-05-12 | $169.0M | 593 | 0001420506-26-000946 |
| 2025-12-31 | 2026-02-06 | $187.5M | 612 | 0001420506-26-000184 |