CIK 1349353
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 |
|---|---|---|
| Unclassified | 32.13% | 2 |
| Specialty Retail | 23.30% | 2 |
| Software & IT Services | 20.73% | 2 |
| Software | 11.08% | 1 |
| Semiconductors & Semiconductor Equipment | 8.11% | 2 |
| Technology Hardware & Equipment | 3.96% | 1 |
| Pharmaceuticals & Biotechnology | 0.68% | 1 |
| # | Ticker | Name | Sector | Weight |
|---|---|---|---|---|
| 1 | BRK.B | BERKSHIRE HATHAWAY INC | Financials | 31.97% |
| 2 | AMZN | AMAZON COM INC | Consumer Discretionary | 15.19% |
| 3 | GOOGL | Alphabet Inc. | Communication Services | 11.96% |
| 4 | MSFT | MICROSOFT CORP | Information Technology | 11.08% |
| 5 | META | Meta Platforms, Inc. | Communication Services | 8.78% |
| 6 | COST | COSTCO WHOLESALE CORP /NEW | Consumer Discretionary | 8.12% |
| 7 | TSM | Taiwan Semiconductor Manufacturing Co Ltd | Information Technology | 6.08% |
| 8 | AAPL | Apple Inc. | Information Technology | 3.96% |
| 9 | NVDA | NVIDIA CORP | Information Technology | 2.03% |
| 10 | JNJ | JOHNSON & JOHNSON | Health Care | 0.68% |
10/11 names classified · sector 99.8% of weight · industry 67.9% · mkt cap 93.8%; 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: 99.8% of the book is sector-classified (unclassified names shown, never dropped).
Classified: 61.8% of book weight (8/11 names) · unclassified 38.2%: BRK.B, TSM, 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 | Shares | Value | Weight | Δ QoQ |
|---|---|---|---|---|---|
| 1 | BRK.BBERKSHIRE HATHAWAY INC DEL | 305,787 | $147M | 32.0% | HOLD |
| 2 | AMZNAMAZON COM INC | 334,201 | $70M | 15.2% | ADD 8% |
| 3 | GOOGLALPHABET INC | 190,573 | $55M | 12.0% | HOLD |
| 4 | MSFTMICROSOFT CORP | 137,237 | $51M | 11.1% | ADD 13% |
| 5 | METAMETA PLATFORMS INC | 70,315 | $40M | 8.8% | ADD 150% |
| 6 | COSTCOSTCO WHSL CORP NEW | 37,339 | $37M | 8.1% | HOLD |
| 7 | TSMTAIWAN SEMICONDUCTOR MFG LTD | 82,433 | $28M | 6.1% | ADD 102% |
| 8 | AAPLAPPLE INC | 71,545 | $18M | 4.0% | ADD 18% |
| 9 | NVDANVIDIA CORPORATION | 53,300 | $9M | 2.0% | TRIM −63% |
| 10 | JNJJOHNSON & JOHNSON | 12,798 | $3M | 0.7% | TRIM −82% |
| 11 | BRK.ABERKSHIRE HATHAWAY INC DEL | 1 | $718,140 | 0.2% | HOLD |
| Security | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| BRK.BBERKSHIRE HATHAWAY INC DEL | 318K | 315K | 320K | 315K | 310K | 306K | $147M |
| AMZNAMAZON COM INC | 363K | 407K | 425K | 311K | 310K | 334K | $70M |
| GOOGLALPHABET INC | 84K | — | 73K | 159K | 187K | 191K | $55M |
| MSFTMICROSOFT CORP | 120K | 118K | 124K | 122K | 122K | 137K | $51M |
| METAMETA PLATFORMS INC | 41K | 41K | 45K | 46K | 28K | 70K | $40M |
| COSTCOSTCO WHSL CORP NEW | 38K | 43K | 41K | 38K | 38K | 37K | $37M |
| TSMTAIWAN SEMICONDUCTOR MFG LTD | 82K | 84K | — | 31K | 41K | 82K | $28M |
| AAPLAPPLE INC | 92K | 51K | 61K | 61K | 60K | 72K | $18M |
| NVDANVIDIA CORPORATION | — | 30K | 15K | 88K | 143K | 53K | $9M |
| JNJJOHNSON & JOHNSON | — | — | 22K | 22K | 71K | 13K | $3M |
| BRK/ABERKSHIRE HATHAWAY INC DEL | 1 | 1 | 1 | 1 | 1 | 1 | $718,140 |
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.
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