MIDDLETON & CO INC/MA — 13F Holdings & Portfolio
CIK 919497 · latest 13F-HR filed 2026-08-10
MIDDLETON & CO INC/MA manages $941.9M in 13F-reported U.S. long-equity assets across 170 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are GOOGL (7.43%), AAPL (6.77%), AMZN (6.07%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 11 new positions, exited 5, added to 67, and trimmed 48.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
BOSTON, MA 02210
$941.9M
Long-equity book
170
Distinct positions
2026-06-30
Filed 2026-08-10
+11 / −5 / ↑67 / ↓48
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- Palo Alto Networks Inc$15.0M +92.5%
- Alphabet Inc Cap Stock Cl A$10.3M +17.2%
- Apple Inc$6.9M +12.1%
- Amazon.com Inc$6.1M +11.9%
- Broadcom Inc Com$6.0M +15.0%
Top Trims
- Intuit-$4.3M -43.2%
- Exxon Mobil Corp-$4.1M -20.8%
- Adobe Inc-$2.3M -49.3%
- Costco Wholesale Corp-$2.1M -8.7%
- Salesforce Inc-$2.0M -17.8%
New Positions
- Badger Meter Inc$2.7M
- Pfizer Inc$690.1K
- Bentley Systems Inc Cl B$555.8K
- Euclidean Fundamental Value Et$425.6K
- Netflix Inc$367.6K
Exited Positions
- Bondbloxx Bloomberg Six Month$402.6K
- Ishares Select Dividend ETF$253.6K
- Nike Inc$238.4K
- iShares Sh Tr Crport ETF$237.1K
- Epam Sys Inc$210.5K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | Alphabet Inc Cap Stock Cl A | GOOGL | 02079K305 | $70.0M | 7.43% | 195,871 | SH |
| 2 | Apple Inc | AAPL | 037833100 | $63.7M | 6.77% | 220,283 | SH |
| 3 | Amazon.com Inc | AMZN | 023135106 | $57.2M | 6.07% | 239,934 | SH |
| 4 | Broadcom Inc Com | AVGO | 11135F101 | $45.8M | 4.86% | 121,188 | SH |
| 5 | iShares Tr S&P 500 Index | IVV | 464287200 | $36.2M | 3.84% | 48,302 | SH |
| 6 | Palo Alto Networks Inc | PANW | 697435105 | $31.3M | 3.32% | 91,663 | SH |
| 7 | VISA INC COM CL | V | 92826C839 | $23.8M | 2.53% | 69,437 | SH |
| 8 | JPMorgan Chase & Co | JPM | 46625H100 | $22.4M | 2.38% | 68,448 | SH |
| 9 | Costco Wholesale Corp | COST | 22160K105 | $22.3M | 2.37% | 23,829 | SH |
| 10 | Microsoft Corp | MSFT | 594918104 | $21.1M | 2.24% | 56,448 | SH |
| 11 | Abbvie Inc | ABBV | 00287Y109 | $18.9M | 2.01% | 75,213 | SH |
| 12 | O'Reilly Automotive Inc | ORLY | 67103H107 | $17.9M | 1.91% | 194,916 | SH |
| 13 | Nvidia Corporation | NVDA | 67066G104 | $16.3M | 1.73% | 81,596 | SH |
| 14 | Lilly Eli & Co | LLY | 532457108 | $15.6M | 1.66% | 13,020 | SH |
| 15 | Exxon Mobil Corp | XOM | 30231G102 | $15.6M | 1.65% | 113,821 | SH |
| 16 | Nextera Energy Inc | NEE | 65339F101 | $14.9M | 1.58% | 169,229 | SH |
| 17 | Qualcomm Inc | QCOM | 747525103 | $14.3M | 1.52% | 77,644 | SH |
| 18 | Merck & Co Inc | MRK | 58933Y105 | $14.2M | 1.50% | 110,274 | SH |
| 19 | Berkshire Hathaway Inc Cl B | BRK.B | 084670702 | $12.9M | 1.37% | 25,734 | SH |
| 20 | Danaher Corp | DHR | 235851102 | $12.7M | 1.35% | 66,566 | SH |
| 21 | Ishares 7-10 Year Treasury Bon | IEF | 464287440 | $12.0M | 1.27% | 126,601 | SH |
| 22 | Equinix Inc | EQIX | 29444U700 | $11.9M | 1.27% | 11,448 | SH |
| 23 | Eaton Corp Plc | ETN | G29183103 | $11.4M | 1.21% | 26,784 | SH |
| 24 | ServiceNow Inc | NOW | 81762P102 | $11.2M | 1.19% | 113,100 | SH |
| 25 | Vanguard Short-Term Treasury E | VGSH | 92206C102 | $10.8M | 1.14% | 184,829 | SH |
| 26 | Vanguard Intermediate-Term Gov | VGIT | 92206C706 | $10.5M | 1.11% | 177,764 | SH |
| 27 | Ishares Msci Intl Quality Fact | IQLT | 46434V456 | $10.4M | 1.10% | 209,381 | SH |
| 28 | S&P Global Inc | SPGI | 78409V104 | $10.2M | 1.09% | 25,139 | SH |
| 29 | Steris Plc Shs Usd | STE | G8473T100 | $9.8M | 1.04% | 46,560 | SH |
| 30 | Xylem Inc | XYL | 98419M100 | $9.5M | 1.01% | 80,477 | SH |
| 31 | Alphabet Inc Cap Stock Cl C | GOOG | 02079K107 | $9.2M | 0.98% | 26,179 | SH |
| 32 | Salesforce Inc | CRM | 79466L302 | $9.2M | 0.98% | 58,980 | SH |
| 33 | Synopsys Inc | SNPS | 871607107 | $9.1M | 0.97% | 20,421 | SH |
| 34 | Verisk Analytics Inc Cl A | VRSK | 92345Y106 | $8.4M | 0.89% | 46,828 | SH |
| 35 | Meta Platforms Inc Cl A | META | 30303M102 | $8.2M | 0.87% | 14,481 | SH |
| 36 | Ecolab Inc | ECL | 278865100 | $8.0M | 0.85% | 28,721 | SH |
| 37 | American Tower REIT | AMT | 03027X100 | $7.9M | 0.84% | 48,365 | SH |
| 38 | Stryker Corp | SYK | 863667101 | $7.8M | 0.82% | 24,628 | SH |
| 39 | Mondelez Intl Inc Cl A | MDLZ | 609207105 | $7.1M | 0.75% | 122,026 | SH |
| 40 | Waste Connections Inc | WCN | 94106B101 | $7.0M | 0.74% | 41,864 | SH |
| 41 | Idexx Labs Inc | IDXX | 45168D104 | $6.9M | 0.74% | 13,158 | SH |
| 42 | MSCI Inc Cl A | MSCI | 55354G100 | $6.7M | 0.71% | 11,891 | SH |
| 43 | Lam Research Corp New | LRCX | 512807306 | $6.6M | 0.70% | 15,213 | SH |
| 44 | American Wtr Wks Co Inc New | AWK | 030420103 | $6.6M | 0.70% | 49,990 | SH |
| 45 | iShares Tr S&P Small Cap 600 | IJR | 464287804 | $6.5M | 0.69% | 43,739 | SH |
| 46 | Iqvia Holdings Inc | IQV | 46266C105 | $6.4M | 0.68% | 33,233 | SH |
| 47 | Pgim Aaa Clo Etf | PAAA | 69344A834 | $6.1M | 0.65% | 119,365 | SH |
| 48 | Amphenol Corp Cl A | APH | 032095101 | $6.1M | 0.65% | 34,484 | SH |
| 49 | iShares Tr S&P Mid Cap 400 | IJH | 464287507 | $6.0M | 0.64% | 77,905 | SH |
| 50 | Chubb Limited | CB | H1467J104 | $5.7M | 0.60% | 16,719 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-10 | $941.9M | 170 | 0001398344-26-013855 |
| 2026-03-31 | 2026-05-08 | $876.9M | 164 | 0001398344-26-008750 |
| 2025-12-31 | 2026-01-29 | $941.8M | 163 | 0001398344-26-001587 |