Investor
Flagstone Financial Management
CIK 0001968890 · filed 2026-04-27 · SEC filing
13F book
$402.9M
Positions
71
6 new · 1 sold
Largest name
26.9%
Dimensional Etf Trust
Est. mark
−$2.77M
Price effect on 65 names still held. Flow $15.7M.
| Name | Ticker | Shares | Value | Weight | Est. mark | Change |
|---|---|---|---|---|---|---|
| Dimensional Etf Trust | — | 1.53M | $108.6M | 26.9% | −$4.85M | Added−$1.68M |
| Ishares Tr | — | 809.7K | $43.1M | 10.7% | −$501.8K | Added$2.13M |
| Spdr Index Shs Fds | — | 651.1K | $29.7M | 7.4% | $807.4K | Cut$538.4K |
| Spdr Series Trust | — | 912.5K | $27.4M | 6.8% | −$110.8K | Added$1.7M |
| Spdr Series Trust | — | 866.5K | $24.8M | 6.2% | −$148K | Added$1.12M |
| Vanguard Charlotte Fds | — | 475.9K | $22.9M | 5.7% | −$118.3K | Added$1.69M |
| American Centy Etf Tr | — | 193.5K | $21.4M | 5.3% | $1.63M | Added$1.85M |
| Dimensional Etf Trust | — | 487.8K | $16.9M | 4.2% | $717K | Cut$551.4K |
| American Centy Etf Tr | — | 134.8K | $15M | 3.7% | −$80.2K | Added$35.3K |
| American Centy Etf Tr | — | 146.5K | $14.6M | 3.6% | $862.7K | Cut$135K |
| Vanguard Index Fds | — | 117.4K | $10.4M | 2.6% | $23.6K | Added$485.8K |
| Pimco Etf Tr | — | 166.1K | $8.67M | 2.2% | −$25.4K | Added$2.6M |
| American Centy Etf Tr | — | 92K | $7.42M | 1.8% | $327.6K | Cut$121.8K |
| Berkshire Hathaway Inc Del | — | 12.1K | $5.81M | 1.4% | −$284.2K | Cut−$319.9K |
| American Centy Etf Tr | — | 51.5K | $4.37M | 1.1% | $129.7K | Cut$10.9K |
| Ishares Tr | — | 29.9K | $3.17M | 0.8% | −$28.6K | Added−$25.3K |
| Apple Inc. | AAPL | 11.7K | $2.96M | 0.7% | −$209.3K | Added−$190.3K |
| Dimensional Etf Trust | — | 53.9K | $2.22M | 0.5% | −$121.4K | Added−$37K |
| Ishares Tr | — | 86.2K | $2.16M | 0.5% | −$15.1K | Cut−$31.1K |
| Spdr Series Trust | — | 25K | $1.98M | 0.5% | −$86.1K | Held |
| Jpmorgan Chase & Co. | — | 6.69K | $1.97M | 0.5% | −$99.3K | Added$827.8K |
| Microsoft Corp | MSFT | 5.08K | $1.88M | 0.5% | −$575.9K | Cut−$614.1K |
| Dimensional Etf Trust | — | 37.3K | $1.31M | 0.3% | $69.4K | Added$246.4K |
| Us Bancorp Del | — | 24.5K | $1.28M | 0.3% | −$33.1K | Added−$32.9K |
| American Centy Etf Tr | — | 28.8K | $1.27M | 0.3% | $13.7K | Added$45.6K |
| Exxon Mobil Corp | — | 6.82K | $1.16M | 0.3% | $329.5K | Added$353.3K |
| Dimensional Etf Trust | — | 31.4K | $1.06M | 0.3% | $40.5K | Cut$32.8K |
| Dimensional Etf Trust | — | 17.1K | $886.3K | 0.2% | −$986 | Cut−$40.2K |
| Nvidia Corp | NVDA | 5.04K | $878.5K | 0.2% | −$61K | Held |
| Wells Fargo Co New | — | 10.7K | $854.9K | 0.2% | −$145.9K | Cut−$249.2K |
| Alphabet Inc | — | 2.95K | $846.7K | 0.2% | −$77.5K | Added−$56K |
| Dimensional Etf Trust | — | 19.1K | $811.2K | 0.2% | −$8.51K | Cut−$9.2K |
| Ishares Tr | — | 7.82K | $760.6K | 0.2% | $7.51K | Held |
| Berkshire Hathaway Inc Del | — | 1 | $718.1K | 0.2% | −$36.7K | Held |
| Vanguard Specialized Funds | — | 3.19K | $686K | 0.2% | −$15.1K | Cut−$46K |
| Vanguard Index Fds | — | 2.09K | $669.7K | 0.2% | −$30.2K | Held |
| Vanguard Scottsdale Fds | — | 10.6K | $631.9K | 0.2% | −$3.81K | Added$30.9K |
| Deere & Co | DE | 1.03K | $581.4K | 0.1% | $100.9K | Held |
| Mastercard Inc | MA | 1.14K | $569.6K | 0.1% | −$77.6K | Added−$52.6K |
| Pepsico Inc | PEP | 3.4K | $528K | 0.1% | $23.5K | Added$240.9K |
| Dimensional Etf Trust | — | 21.2K | $500.6K | 0.1% | $15.9K | Held |
| Dimensional Etf Trust | — | 11.7K | $496.2K | 0.1% | $10.4K | Cut−$26.9K |
| Markel Group Inc. | MKL | 254 | $486.2K | 0.1% | −$59.8K | Held |
| Oracle Corp | — | 3.28K | $482.2K | 0.1% | −$61.1K | Added$233.3K |
| Johnson & Johnson | JNJ | 1.94K | $473.2K | 0.1% | $67.9K | Added$98.4K |
| Amazon Com Inc | AMZN | 2.15K | $447.8K | 0.1% | −$33.1K | Added$108.7K |
| Ishares Tr | — | 1.76K | $436K | 0.1% | $3.23K | Held |
| Vanguard Tax-Managed Fds | — | 6.59K | $422K | 0.1% | $5.79K | Added$197.4K |
| Spdr Series Trust | — | 11.5K | $386.8K | 0.1% | −$3.11K | Held |
| Dimensional Etf Trust | — | 7.32K | $386.4K | 0.1% | $21.1K | Cut$4.57K |
| Equity Lifestyle Pptys Inc | ELS | 5.68K | $354.4K | 0.1% | $10.3K | Cut−$13.2K |
| Walmart Inc. | WMT | 2.75K | $341.1K | 0.1% | $35.3K | Held |
| Verizon Communications Inc | VZ | 6.61K | $331.7K | 0.1% | — | New |
| Invesco Qqq Tr | — | 536 | $309.4K | 0.1% | −$19.9K | Cut−$29.7K |
| Alphabet Inc | — | 987 | $283.8K | 0.1% | −$25K | Held |
| Boston Omaha Corp | BOC | 24.2K | $282.8K | 0.1% | −$16.7K | Held |
| Cisco Sys Inc | — | 3.55K | $275.5K | 0.1% | — | New |
| Union Pac Corp | — | 1.09K | $265.3K | 0.1% | $12.4K | Held |
| Select Sector Spdr Tr | — | 5.23K | $258.1K | 0.1% | −$28.2K | Held |
| Dimensional Etf Trust | — | 4.11K | $256.9K | 0.1% | $12K | Held |
| Valero Energy Corp | — | 1K | $247.1K | 0.1% | — | New |
| Rockwell Automation, Inc | ROK | 681 | $244.4K | 0.1% | −$20.6K | Held |
| Ishares Tr | — | 2.04K | $242.2K | 0.1% | −$1.53K | Held |
| Gilead Sciences, Inc. | GILD | 1.74K | $242.1K | 0.1% | — | New |
| Eaton Corp Plc | ETN | 664 | $237.5K | 0.1% | $26K | Held |
| Bank America Corp | — | 4.84K | $235.7K | 0.1% | −$30.2K | Cut−$118.2K |
| Spdr S&P 500 Etf Tr | — | 337 | $219.5K | 0.1% | −$10.7K | Held |
| Ishares Tr | — | 2.42K | $218.9K | 0.1% | $2.59K | Held |
| Nextera Energy Inc | — | 2.33K | $216.7K | 0.1% | — | New |
| Philip Morris Intl Inc | — | 1.3K | $214.9K | 0.1% | — | New |
| Select Sector Spdr Tr | — | 1.52K | $202.3K | 0.1% | −$16.8K | Held |
Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.