Middleton & Co Inc holds a diversified book of 170 stocks worth $941.9M as of Q2 2026 (disclosed Aug 10, 2026, a ~41-day 13F lag). This quarter they opened BP Prudhoe Bay Royalty Trust and trimmed Alphabet Inc-CL A. Their largest long position is Alphabet Inc-CL A at 7% of the equity book.
Top-heavy: diversified book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
86% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Other tracked managers holding the same core names as Middleton & Co Inc
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| MORGAN STANLEY | 80 / 80 | $603.3B |
| BANK OF AMERICA CORP /DE/ | 80 / 80 | $389.5B |
| ROYAL BANK OF CANADA | 80 / 80 | $174.4B |
| WELLS FARGO & COMPANY/MN | 80 / 80 | $167.5B |
| UBS Group AG | 80 / 80 | $155.6B |
| RAYMOND JAMES FINANCIAL INC | 80 / 80 | $89.2B |
| BANK OF MONTREAL /CAN/ | 80 / 80 | $71.1B |
| LPL Financial LLC | 80 / 80 | $67.9B |
Ranked by how many of Middleton & Co Inc's top 80 disclosed names each fund also holds: a cross-fund conviction signal from the latest 13F of every tracked manager.
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Alphabet Inc Cap Stock Cl A COM | $70.0M | 195.9K | 7.4% | ▼−5.7% Reduced · −12K sh | |
| 2 | Apple Inc COM | $63.7M | 220.3K | 6.8% | ▼−1.7% Reduced · −4K sh | |
| 3 | Amazon.com Inc COM | $57.2M | 239.9K | 6.1% | ▼−2.2% Reduced · −5K sh | |
| 4 | Broadcom Inc Com COM | $45.8M | 121.2K | 4.9% | ▼−5.8% Reduced · −7K sh | |
| 5 | iShares Tr S&P 500 Index ETF - EQUITY | $36.2M | 48.3K | 3.8% | ▼−0.3% Reduced · −158 sh | |
| 6 | Palo Alto Networks Inc COM | $31.3M | 91.7K | 3.3% | ▼−9.5% Reduced · −10K sh | |
| 7 | Visa Inc Com CL COM | $23.8M | 69.4K | 2.5% | ▼−1.8% Reduced · −1K sh | |
| 8 | JPMorgan Chase & Co COM | $22.4M | 68.4K | 2.4% | ▼−4.4% Reduced · −3K sh | |
| 9 | Costco Wholesale Corp COM | $22.3M | 23.8K | 2.4% | ▼−2.8% Reduced · −687 sh | |
| 10 | Microsoft Corp COM | $21.1M | 56.4K | 2.2% | ▼−1.2% Reduced · −693 sh | |
| 11 | Abbvie Inc COM | $18.9M | 75.2K | 2.0% | ▼−3.6% Reduced · −3K sh | |
| 12 | O'Reilly Automotive Inc COM | $17.9M | 194.9K | 1.9% | ▼−2.8% Reduced · −6K sh | |
| 13 | Nvidia Corporation COM | $16.3M | 81.6K | 1.7% | ▲+11% Added · +8K sh | |
| 14 | Lilly Eli & Co COM | $15.6M | 13.0K | 1.7% | ▲+0.4% Added · +54 sh | |
| 15 | Exxon Mobil Corp COM | $15.6M | 113.8K | 1.7% | ▼−1.7% Reduced · −2K sh | |
| 16 | Nextera Energy Inc COM | $14.9M | 169.2K | 1.6% | ▼−2.4% Reduced · −4K sh | |
| 17 | Qualcomm Inc COM | $14.3M | 77.6K | 1.5% | ▼−9.3% Reduced · −8K sh | |
| 18 | Merck & Co Inc COM | $14.2M | 110.3K | 1.5% | ▼−9.7% Reduced · −12K sh | |
| 19 | Berkshire Hathaway Inc Cl B COM | $12.9M | 25.7K | 1.4% | ▲+3.5% Added · +865 sh | |
| 20 | Danaher Corp COM | $12.7M | 66.6K | 1.3% | ▼−2.7% Reduced · −2K sh | |
| 21 | Ishares 7-10 Year Treasury Bon ETF | $12.0M | 126.6K | 1.3% | ▼−7.2% Reduced · −10K sh | |
| 22 | Equinix Inc REUS | $11.9M | 11.4K | 1.3% | ▼−7.3% Reduced · −907 sh | |
| 23 | Eaton Corp Plc COM | $11.4M | 26.8K | 1.2% | ▲+1.0% Added · +258 sh | |
| 24 | ServiceNow Inc COM | $11.2M | 113.1K | 1.2% | ▲+3.1% Added · +3K sh | |
| 25 | Vanguard Short-Term Treasury E ETF | $10.8M | 184.8K | 1.1% | ▲+0.3% Added · +600 sh | |
| 26 | Vanguard Intermediate-Term Gov ETF | $10.5M | 177.8K | 1.1% | ▲+3.6% Added · +6K sh | |
| 27 | Ishares Msci Intl Quality Fact ETF - EQUITY | $10.4M | 209.4K | 1.1% | ▲+4.5% Added · +9K sh | |
| 28 | S&P Global Inc COM | $10.2M | 25.1K | 1.1% | ▼−2.5% Reduced · −637 sh | |
| 29 | Steris Plc Shs Usd COM | $9.8M | 46.6K | 1.0% | ▼−3.3% Reduced · −2K sh | |
| 30 | Xylem Inc COM | $9.5M | 80.5K | 1.0% | ▼−2.2% Reduced · −2K sh | |
| 31 | Alphabet Inc Cap Stock Cl C COM | $9.2M | 26.2K | 1.0% | ▼−12% Reduced · −4K sh | |
| 32 | Salesforce Inc COM | $9.2M | 59.0K | 1.0% | ▼−2.0% Reduced · −1K sh | |
| 33 | Synopsys Inc COM | $9.1M | 20.4K | 1.0% | ▼−2.1% Reduced · −437 sh | |
| 34 | Verisk Analytics Inc Cl A COM | $8.4M | 46.8K | 0.9% | ▲+2.5% Added · +1K sh | |
| 35 | Meta Platforms Inc Cl A COM | $8.2M | 14.5K | 0.9% | ▲+4.5% Added · +624 sh | |
| 36 | Ecolab Inc COM | $8.0M | 28.7K | 0.8% | ▼−3.7% Reduced · −1K sh | |
| 37 | American Tower REIT REUS | $7.9M | 48.4K | 0.8% | ▼−5.4% Reduced · −3K sh | |
| 38 | Stryker Corp COM | $7.8M | 24.6K | 0.8% | ▲+0.3% Added · +63 sh | |
| 39 | Mondelez Intl Inc Cl A COM | $7.1M | 122.0K | 0.7% | ▲+0.2% Added · +285 sh | |
| 40 | Waste Connections Inc COM | $7.0M | 41.9K | 0.7% | ▲+20% Added · +7K sh | |
| 41 | Idexx Labs Inc COM | $6.9M | 13.2K | 0.7% | ▲~0% Added · +2 sh | |
| 42 | Msci Inc Cl A COM | $6.7M | 11.9K | 0.7% | ▼−3.9% Reduced · −488 sh | |
| 43 | Lam Research Corp New COM | $6.6M | 15.2K | 0.7% | ▼−1.4% Reduced · −218 sh | |
| 44 | American Wtr Wks Co Inc New COM | $6.6M | 50.0K | 0.7% | ▲+2.9% Added · +1K sh | |
| 45 | iShares Tr S&P Small Cap 600 ETF - EQUITY | $6.5M | 43.7K | 0.7% | ▼−2.1% Reduced · −941 sh | |
| 46 | Iqvia Holdings Inc COM | $6.4M | 33.2K | 0.7% | ▼−3.2% Reduced · −1K sh | |
| 47 | Pgim Aaa Clo Etf ETF | $6.1M | 119.4K | 0.6% | ▲+16% Added · +16K sh | |
| 48 | Amphenol Corp Cl A COM | $6.1M | 34.5K | 0.6% | ▲+87% Added · +16K sh | |
| 49 | iShares Tr S&P Mid Cap 400 ETF - EQUITY | $6.0M | 77.9K | 0.6% | ▼−2.4% Reduced · −2K sh | |
| 50 | Chubb Limited COM | $5.7M | 16.7K | 0.6% | ▼−3.6% Reduced · −622 sh |
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This fund page is the Follow view. The Build view lets your agent pull holdings, quarter changes, overlap, and source filings through API or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/919497/holdings"
Use Arkolith to show MIDDLETON & CO INC/MA's latest holdings, largest changes, and filing provenance.
As-of date vs the date the SEC received each filing
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.