CIK 2044671
Long positions in SEC Section 13(f) securities (US-listed stocks, ADRs and ETFs), largest first · Δ vs 2025-Q4. A lagged quarterly snapshot (filed ≤45 days after quarter-end); excludes shorts, options, cash, and shares listed only on non-US exchanges — foreign companies held via a US listing or ADR (e.g. Alibaba, TSMC) ARE included.
As filed = each book applied at its quarter-end (what the reported book did) · As copyable = applied at its statutory 45-day filing deadline (what a 13F follower could have earned).
Computing…
Hypothetical modeled performance constructed with hindsight — not actual results, and not indicative of future results. See the Disclaimer.
| Industry group | Weight | Names |
|---|---|---|
| Commercial Services & Supplies | 31.64% | 4 |
| Software & IT Services | 30.35% | 1 |
| Unclassified | 23.09% | 4 |
| Banks | 10.03% | 2 |
| Insurance | 4.11% | 3 |
| Semiconductors & Semiconductor Equipment | 0.78% | 1 |
| # | Ticker | Name | Sector | Weight |
|---|---|---|---|---|
| 1 | GOOGL | Alphabet Inc. | Communication Services | 30.35% |
| 2 | BRK.B | BERKSHIRE HATHAWAY INC | Financials | 17.55% |
| 3 | V | VISA INC. | Financials | 17.40% |
| 4 | CBNA | CHAIN BRIDGE BANCORP INC | Financials | 9.52% |
| 5 | MA | Mastercard Inc | Financials | 7.99% |
| 6 | SPGI | S&P Global Inc. | Industrials | 4.51% |
| 7 | HEI.A | HEICO CORP NEW | Unclassified | 3.08% |
| 8 | RLI | RLI CORP | Financials | 1.76% |
| 9 | MCO | MOODYS CORP /DE/ | Industrials | 1.73% |
| 10 | BRK.A | BERKSHIRE HATHAWAY INC DEL | Unclassified | 1.27% |
12/15 names classified · sector 94.5% of weight · industry 76.9% · mkt cap 94.5%; unclassified names shown, never dropped.
Sector is classified on each name's CURRENT fundamentals, not point-in-time — apparent sector drift can reflect the market re-rating a holding, not a manager trade. 13F is a lagged quarterly snapshot of long positions in US-listed securities only — foreign companies held via a US listing or ADR ARE included, but shares listed only on non-US exchanges (plus shorts, options and cash) are not. Latest quarter: 94.5% of the book is sector-classified (unclassified names shown, never dropped).
Classified: 67.4% of book weight (10/15 names) · unclassified 32.6%: BRK.B, CBNA, HEI.A, BRK.A, IGIC. Size: cap 70/20/10 bands; style: value/growth composite on our own metrics — not Morningstar's model.
No contribution data for this period.
| # | Security | Shares | Value | Weight | Δ QoQ |
|---|---|---|---|---|---|
| 1 | GOOGLALPHABET INC | 119,450 | $34M | 30.4% | TRIM −20% |
| 2 | BRK.BBERKSHIRE HATHAWAY INC DEL | 41,450 | $20M | 17.6% | HOLD |
| 3 | VVISA INC | 65,150 | $20M | 17.4% | ADD 10% |
| 4 | CBNACHAIN BRIDGE BANCORP INC | 308,612 | $11M | 9.5% | ADD 5% |
| 5 | MAMASTERCARD INCORPORATED | 18,100 | $9M | 8.0% | ADD 7% |
| 6 | SPGIS&P GLOBAL INC | 12,000 | $5M | 4.5% | ADD 26% |
| 7 | HEI.AHEICO CORP NEW | 16,500 | $3M | 3.1% | ADD 50% |
| 8 | RLIRLI CORP | 35,000 | $2M | 1.8% | ADD 17% |
| 9 | MCOMOODYS CORP | 4,500 | $2M | 1.7% | ADD 80% |
| 10 | BRK.ABERKSHIRE HATHAWAY INC DEL | 2 | $1M | 1.3% | HOLD |
| 11 | KNSLKINSALE CAP GROUP INC | 4,000 | $1M | 1.2% | NEW |
| 12 | IGICINTL GNRL INSURANCE HLDNGS L | 55,400 | $1M | 1.2% | NEW |
| 13 | PGRPROGRESSIVE CORP | 6,500 | $1M | 1.1% | HOLD |
| 14 | APHAMPHENOL CORP | 7,000 | $884,450 | 0.8% | NEW |
| 15 | CBNKCAPITAL BANCORP INC MD | 19,504 | $580,049 | 0.5% | NEW |
| Security | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| GOOGLALPHABET INC | — | — | — | — | 149K | 119K | $34M |
| BRK.BBERKSHIRE HATHAWAY INC DEL | — | — | — | — | 41K | 41K | $20M |
| VVISA INC | — | — | — | — | 59K | 65K | $20M |
| CBNACHAIN BRIDGE BANCORP INC | — | — | — | — | 294K | 309K | $11M |
| MAMASTERCARD INCORPORATED | — | — | — | — | 17K | 18K | $9M |
| SPGIS&P GLOBAL INC | — | — | — | — | 10K | 12K | $5M |
| HEI/AHEICO CORP NEW | — | — | — | — | 11K | 17K | $3M |
| RLIRLI CORP | — | — | — | — | 30K | 35K | $2M |
| MCOMOODYS CORP | — | — | — | — | 3K | 5K | $2M |
| BRK/ABERKSHIRE HATHAWAY INC DEL | — | — | — | — | 2 | 2 | $1M |
| KNSLKINSALE CAP GROUP INC | — | — | — | — | — | 4K | $1M |
| IGICINTL GNRL INSURANCE HLDNGS L | — | — | — | — | — | 55K | $1M |
| PGRPROGRESSIVE CORP | — | — | — | — | 7K | 7K | $1M |
| APHAMPHENOL CORP | — | — | — | — | — | 7K | $884,450 |
| CBNKCAPITAL BANCORP INC MD | — | — | — | — | — | 20K | $580,049 |
Shares reported each quarter by the largest current holdings. Green = added vs the prior filing of that name, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Where this firm's principals came from and which firms its alumni went on to found.
