FOSTER DYKEMA CABOT & PARTNERS, LLC — 13F Holdings & Portfolio
CIK 2011882 · latest 13F-HR filed 2026-05-14
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.
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AUM
$1.57B
Long-equity book
Holdings
323
Distinct positions
Period
2026-03-31
Filed 2026-05-14
Q/Q Activity
+4 / −11 / ↑97 / ↓128
vs 2025-12-31
Firm Profile & Key People
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- QUANTA SVCS INC$12.1M +28.1%
- COSTCO WHOLESALE CORPORATION$5.9M +15.2%
- NORTHROP GRUMMAN CORP$4.4M +17.4%
- EATON CORP PLC$3.4M +11.5%
- EXXON MOBIL CORP$278.4K +41.0%
Top Trims
- MICROSOFT CORP-$12.7M -23.1%
- AMERICAN EXPRESS CO-$7.5M -18.0%
- AMPHENOL CORP-$5.6M -8.1%
- AMAZON COM INC-$5.5M -10.1%
- ELI LILLY & CO-$4.4M -14.5%
New Positions
- ASTRAZENECA PLC$161.7K
- VANGUARD WHITEHALL FDS$12.1K
- VANGUARD WORLD FD$9.9K
- VERSANT MEDIA GROUP INC$185
Exited Positions
- MOTOROLA SOLUTIONS INC$390.1K
- SYNOPSYS INC$341.5K
- SERVICENOW INC$311.0K
- SPDR SERIES TRUST$154.8K
- ASTRAZENECA PLC$150.9K
All Holdings
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 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $271.9M | 17.30% | 417,001 | SH |
| 2 | J P MORGAN EXCHANGE TRADED F | JPST | 46641Q837 | $240.9M | 15.32% | 4,759,095 | SH |
| 3 | ISHARES TR | ICSH | 46434V878 | $210.3M | 13.38% | 4,154,724 | SH |
| 4 | AMPHENOL CORP | APH | 032095101 | $63.5M | 4.04% | 501,462 | SH |
| 5 | QUANTA SVCS INC | PWR | 74762E102 | $55.1M | 3.50% | 100,312 | SH |
| 6 | AMAZON COM INC | AMZN | 023135106 | $49.2M | 3.13% | 236,429 | SH |
| 7 | ALPHABET INC | GOOGL | 02079K305 | $47.5M | 3.02% | 165,126 | SH |
| 8 | COSTCO WHOLESALE CORPORATION | COST | 22160K105 | $44.9M | 2.86% | 45,089 | SH |
| 9 | MICROSOFT CORP | MSFT | 594918104 | $42.2M | 2.68% | 113,927 | SH |
| 10 | JPMORGAN CHASE & CO | JPM | 46625H100 | $34.9M | 2.22% | 118,474 | SH |
| 11 | AMERICAN EXPRESS CO | AXP | 025816109 | $34.4M | 2.19% | 113,749 | SH |
| 12 | NVIDIA CORPORATION | NVDA | 67066G104 | $33.0M | 2.10% | 189,078 | SH |
| 13 | EATON CORP PLC | ETN | G29183103 | $32.7M | 2.08% | 91,438 | SH |
| 14 | GOLDMAN SACHS GROUP INC | GS | 38141G104 | $31.9M | 2.03% | 37,766 | SH |
| 15 | WASTE MGMT INC DEL | WM | 94106L109 | $29.5M | 1.88% | 128,314 | SH |
| 16 | NORTHROP GRUMMAN CORP | NOC | 666807102 | $29.4M | 1.87% | 43,111 | SH |
| 17 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $26.8M | 1.70% | 55,901 | SH |
| 18 | ELI LILLY & CO | LLY | 532457108 | $25.8M | 1.64% | 28,073 | SH |
| 19 | VERTEX PHARMACEUTICALS INC | VRTX | 92532F100 | $25.8M | 1.64% | 57,792 | SH |
| 20 | CINTAS CORP | CTAS | 172908105 | $25.6M | 1.63% | 151,639 | SH |
| 21 | ISHARES TR | IEFA | 46432F842 | $24.8M | 1.58% | 273,806 | SH |
| 22 | APPLE INC | AAPL | 037833100 | $23.9M | 1.52% | 94,336 | SH |
| 23 | BROADCOM INC | AVGO | 11135F101 | $23.3M | 1.48% | 75,391 | SH |
| 24 | THERMO FISHER SCIENTIFIC INC | TMO | 883556102 | $22.2M | 1.41% | 45,103 | SH |
| 25 | VANGUARD INDEX FDS | VTI | 922908769 | $17.2M | 1.09% | 53,492 | SH |
| 26 | ALPHABET INC | GOOG | 02079K107 | $8.9M | 0.57% | 31,007 | SH |
| 27 | SELECT SECTOR SPDR TR | XLK | 81369Y803 | $7.2M | 0.46% | 54,152 | SH |
| 28 | INDEPENDENT BK CORP MASS | INDB | 453836108 | $6.2M | 0.40% | 82,067 | SH |
| 29 | SPDR SERIES TRUST | SPYX | 78468R796 | $5.3M | 0.34% | 100,831 | SH |
| 30 | VANGUARD INDEX FDS | VOO | 922908363 | $4.9M | 0.31% | 8,120 | SH |
| 31 | ISHARES TR | IWF | 464287614 | $4.6M | 0.29% | 10,673 | SH |
| 32 | PROCTER & GAMBLE CO | PG | 742718109 | $3.9M | 0.25% | 26,828 | SH |
| 33 | ISHARES TR | IVV | 464287200 | $2.8M | 0.18% | 4,240 | SH |
| 34 | ISHARES TR | IWD | 464287598 | $2.1M | 0.13% | 9,635 | SH |
| 35 | SPROTT ASSET MANAGEMENT LP | PHYS | 85207H104 | $2.1M | 0.13% | 58,084 | SH |
| 36 | WALMART INC | WMT | 931142103 | $2.0M | 0.13% | 15,838 | SH |
| 37 | ISHARES TR | SDG | 46435G532 | $1.8M | 0.11% | 21,421 | SH |
| 38 | VANGUARD INTL EQUITY INDEX F | VEU | 922042775 | $1.4M | 0.09% | 18,599 | SH |
| 39 | VISA INC | V | 92826C839 | $1.4M | 0.09% | 4,522 | SH |
| 40 | PEPSICO INC | PEP | 713448108 | $1.3M | 0.08% | 8,572 | SH |
| 41 | MCDONALDS CORP | MCD | 580135101 | $1.3M | 0.08% | 4,250 | SH |
| 42 | JOHNSON & JOHNSON | JNJ | 478160104 | $1.3M | 0.08% | 5,153 | SH |
| 43 | S&P GLOBAL INC | SPGI | 78409V104 | $1.2M | 0.08% | 2,859 | SH |
| 44 | PROLOGIS INC. | PLD | 74340W103 | $1.1M | 0.07% | 8,149 | SH |
| 45 | CISCO SYS INC | CSCO | 17275R102 | $1.1M | 0.07% | 13,828 | SH |
| 46 | MORGAN STANLEY | MS | 617446448 | $1.1M | 0.07% | 6,473 | SH |
| 47 | MERCK & CO INC | MRK | 58933Y105 | $1.0M | 0.07% | 8,626 | SH |
| 48 | CATERPILLAR INC | CAT | 149123101 | $1.0M | 0.06% | 1,418 | SH |
| 49 | EXXON MOBIL CORP | XOM | 30231G102 | $957.7K | 0.06% | 5,645 | SH |
| 50 | INVESCO QQQ TR | QQQ | 46090E103 | $932.1K | 0.06% | 1,615 | SH |
Filing History
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-14 | $1.57B | 323 | 0002011882-26-000002 |
| 2025-12-31 | 2026-02-12 | $1.63B | 330 | 0002011882-26-000001 |
| 2025-09-30 | 2025-11-12 | $1.52B | 421 | 0002011882-25-000005 |