CIK 1811472
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 |
|---|---|---|
| Specialty Retail | 80.16% | 2 |
| Unclassified | 19.84% | 1 |
| # | Ticker | Name | Sector | Weight |
|---|---|---|---|---|
| 1 | AMZN | AMAZON COM INC | Consumer Discretionary | 40.21% |
| 2 | COST | COSTCO WHOLESALE CORP /NEW | Consumer Discretionary | 39.95% |
| 3 | BRK.A | BERKSHIRE HATHAWAY INC DEL | Unclassified | 19.84% |
2/3 names classified · sector 80.2% of weight · industry 80.2% · mkt cap 80.2%; 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: 80.2% of the book is sector-classified (unclassified names shown, never dropped).
Classified: 80.2% of book weight (2/3 names) · unclassified 19.8%: BRK.A. 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 | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| AMZNAMAZON COM INC | 460K | 460K | 460K | 460K | 454K | 454K | $95M |
| COSTCOSTCO WHSL CORP NEW | 96K | 96K | 96K | 96K | 94K | 94K | $94M |
| BRK/ABERKSHIRE HATHAWAY INC DEL | 75 | 74 | 74 | 65 | 65 | 65 | $47M |
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.