CIK 1657428
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 |
|---|---|---|
| Software & IT Services | 17.89% | 3 |
| Unclassified | 16.53% | 7 |
| Specialty Retail | 11.54% | 5 |
| Technology Hardware & Equipment | 11.23% | 4 |
| Software | 9.15% | 2 |
| Health Care Equipment & Supplies | 8.35% | 4 |
| Pharmaceuticals & Biotechnology | 7.77% | 4 |
| Commercial Services & Supplies | 7.08% | 2 |
| Semiconductors & Semiconductor Equipment | 6.16% | 1 |
| Banks | 2.65% | 5 |
| Real Estate Management & Development | 0.68% | 1 |
| Insurance | 0.43% | 1 |
| Construction Materials | 0.32% | 1 |
| Capital Markets | 0.13% | 1 |
| Oil, Gas & Consumable Fuels | 0.04% | 2 |
| Chemicals | 0.02% | 1 |
| Equity Real Estate Investment Trusts (REITs) | 0.01% | 2 |
| Machinery | 0.01% | 1 |
| Aerospace & Defense | 0.01% | 1 |
| Household Durables | 0.01% | 1 |
| Distributors | 0.00% | 1 |
| Textiles, Apparel & Luxury Goods | 0.00% | 1 |
| Hotels, Restaurants & Leisure | 0.00% | 1 |
| # | Ticker | Name | Sector | Weight |
|---|---|---|---|---|
| 1 | BRK.B | BERKSHIRE HATHAWAY INC | Financials | 15.93% |
| 2 | GOOGL | Alphabet Inc. | Communication Services | 13.44% |
| 3 | AMZN | AMAZON COM INC | Consumer Discretionary | 11.47% |
| 4 | MSFT | MICROSOFT CORP | Information Technology | 9.15% |
| 5 | ROP | ROPER TECHNOLOGIES INC | Information Technology | 8.55% |
| 6 | IDXX | IDEXX LABORATORIES INC /DE | Health Care | 7.73% |
| 7 | MA | Mastercard Inc | Financials | 6.84% |
| 8 | APH | AMPHENOL CORP /DE/ | Information Technology | 6.16% |
| 9 | SYK | STRYKER CORP | Health Care | 5.42% |
| 10 | META | Meta Platforms, Inc. | Communication Services | 4.41% |
46/52 names classified · sector 99.4% of weight · industry 83.5% · mkt cap 98.7%; 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: 99.4% of the book is sector-classified (unclassified names shown, never dropped).
Classified: 82.8% of book weight (41/52 names) · unclassified 17.2%: BRK.B, BN, BRK.A, FRMO, SOBO, NVO, LRLCY, NSRGY, SRAD, PENN +1 more. 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 | 168,083 | $81M | 15.9% | HOLD |
| 2 | GOOGLALPHABET INC | 236,358 | $68M | 13.4% | TRIM −16% |
| 3 | AMZNAMAZON COM INC | 278,535 | $58M | 11.5% | ADD 28% |
| 4 | MSFTMICROSOFT CORP | 124,986 | $46M | 9.2% | ADD 22% |
| 5 | ROPROPER TECHNOLOGIES INC | 122,183 | $43M | 8.6% | ADD 52% |
| 6 | IDXXIDEXX LABS INC | 69,598 | $39M | 7.7% | HOLD |
| 7 | MAMASTERCARD INCORPORATED | 69,227 | $35M | 6.8% | HOLD |
| 8 | APHAMPHENOL CORP | 246,560 | $31M | 6.2% | TRIM −17% |
| 9 | SYKSTRYKER CORPORATION | 83,464 | $27M | 5.4% | HOLD |
| 10 | METAMETA PLATFORMS INC | 38,989 | $22M | 4.4% | ADD 42% |
| 11 | EWEDWARDS LIFESCIENCES CORP | 184,195 | $15M | 2.9% | HOLD |
| 12 | JPMJPMORGAN CHASE & CO | 44,674 | $13M | 2.6% | TRIM −60% |
| 13 | AAPLAPPLE INC | 48,812 | $12M | 2.5% | TRIM −33% |
| 14 | BNBROOKFIELD CORP | 84,600 | $3M | 0.7% | HOLD |
| 15 | BRK.ABERKSHIRE HATHAWAY INC DEL | 4 | $3M | 0.6% | HOLD |
| 16 | MKLMARKEL GROUP INC | 1,140 | $2M | 0.4% | HOLD |
| 17 | CRHCRH PLC | 15,257 | $2M | 0.3% | ADD 17% |
| 18 | VVISA INC | 3,986 | $1M | 0.2% | HOLD |
| 19 | DHRDANAHER CORP DEL | 5,704 | $1M | 0.2% | HOLD |
| 20 | CMECME GROUP INC | 2,259 | $667,196 | 0.1% | TRIM −42% |
| 21 | COSTCOSTCO WHSL CORP NEW | 215 | $214,232 | 0.0% | HOLD |
| 22 | GOOGALPHABET INC | 580 | $166,379 | 0.0% | TRIM −28% |
| 23 | APAAPA CORPORATION | 3,130 | $132,837 | 0.0% | HOLD |
| 24 | JNJJOHNSON & JOHNSON | 420 | $102,665 | 0.0% | HOLD |
| 25 | WFCWELLS FARGO CO NEW | 1,220 | $97,124 | 0.0% | HOLD |
| 26 | FRMOFRMO CORPORATION | 11,500 | $89,534 | 0.0% | HOLD |
| 27 | BACBANK AMERICA CORP | 1,725 | $84,094 | 0.0% | HOLD |
| 28 | USBUS BANCORP | 1,510 | $78,535 | 0.0% | HOLD |
| 29 | LINLINDE PLC | 157 | $77,834 | 0.0% | HOLD |
| 30 | IBMINTERNATIONAL BUSINESS MACHS | 280 | $67,869 | 0.0% | HOLD |
| 31 | SOBOSOUTH BOW CORP | 1,700 | $56,644 | 0.0% | HOLD |
| 32 | WELLWELLTOWER INC | 270 | $53,382 | 0.0% | HOLD |
| 33 | CATCATERPILLAR INC | 65 | $46,050 | 0.0% | HOLD |
| 34 | TJXTJX COS INC NEW | 278 | $44,397 | 0.0% | HOLD |
| 35 | NVONOVO-NORDISK A S | 1,159 | $42,593 | 0.0% | HOLD |
| 36 | MMM3M CO | 290 | $42,117 | 0.0% | HOLD |
| 37 | HONHONEYWELL INTL INC | 165 | $37,295 | 0.0% | HOLD |
| 38 | LLYELI LILLY & CO | 40 | $36,791 | 0.0% | HOLD |
| 39 | FASTFASTENAL CO | 784 | $36,378 | 0.0% | HOLD |
| 40 | WMTWALMART INC | 255 | $31,691 | 0.0% | HOLD |
| 41 | WHRWHIRLPOOL CORP | 559 | $30,141 | 0.0% | HOLD |
| 42 | LRLCYL OREAL CO ADR | 256 | $20,974 | 0.0% | HOLD |
| 43 | NSRGYNESTLE S A SPONSORED ADR | 210 | $20,811 | 0.0% | HOLD |
| 44 | WSOWATSCO INC | 50 | $18,189 | 0.0% | HOLD |
| 45 | XRAYDENTSPLY SIRONA INC | 1,451 | $16,832 | 0.0% | HOLD |
| 46 | LULULULULEMON ATHLETICA INC | 85 | $13,013 | 0.0% | HOLD |
| 47 | PSAPUBLIC STORAGE OPER CO | 27 | $7,314 | 0.0% | HOLD |
| 48 | COINCOINBASE GLOBAL INC | 12 | $2,095 | 0.0% | HOLD |
| 49 | SRADSPORTRADAR GROUP AG | 125 | $2,092 | 0.0% | NEW |
| 50 | PENNPENN ENTERTAINMENT INC | 119 | $1,789 | 0.0% | HOLD |
| 51 | XYZBLOCK INC | 29 | $1,745 | 0.0% | HOLD |
| 52 | TRANSTEL SA COMMON | 33 | $33 | 0.0% | HOLD |
| Security | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| BRK.BBERKSHIRE HATHAWAY INC DEL | 160K | 168K | 171K | 169K | 169K | 168K | $81M |
| GOOGLALPHABET INC | 291K | 336K | 334K | 334K | 282K | 236K | $68M |
| AMZNAMAZON COM INC | 192K | 212K | 211K | 215K | 217K | 279K | $58M |
| MSFTMICROSOFT CORP | 114K | 104K | 104K | 103K | 102K | 125K | $46M |
| ROPROPER TECHNOLOGIES INC | 65K | 68K | 68K | 74K | 80K | 122K | $43M |
| IDXXIDEXX LABS INC | 52K | 56K | 95K | 95K | 69K | 70K | $39M |
| MAMASTERCARD INCORPORATED | 68K | 70K | 70K | 70K | 70K | 69K | $35M |
| APHAMPHENOL CORP | 233K | 333K | 330K | 324K | 297K | 247K | $31M |
| SYKSTRYKER CORPORATION | 48K | 50K | 50K | 50K | 83K | 83K | $27M |
| METAMETA PLATFORMS INC | — | 105 | 105 | 15K | 27K | 39K | $22M |
| EWEDWARDS LIFESCIENCES CORP | 179K | 190K | 186K | 183K | 185K | 184K | $15M |
| JPMJPMORGAN CHASE & CO | 111K | 112K | 113K | 113K | 112K | 45K | $13M |
| AAPLAPPLE INC | 141K | 91K | 75K | 74K | 73K | 49K | $12M |
| BNBROOKFIELD CORP | 33K | 54K | 56K | 56K | 85K | 85K | $3M |
| BRK/ABERKSHIRE HATHAWAY INC DEL | 4 | 4 | 4 | 4 | 4 | 4 | $3M |
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.
