Filed: 5/14/2026ACC: 0002011882-26-000002
📋 What this filing means
FOSTER DYKEMA CABOT & PARTNERS, LLC filed this quarterly 13F‑HR report disclosing 323 equity positions with a total reported market value of $1.57B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
323
Positions
$1.57B
Total AUM (reported)
12.97M
Total Shares
Allocation by class
COM$576.17M36.7%
TR UNIT$271.94M17.3%
ULTRA SHRT ETF$240.86M15.3%
ULTRA SHORT DUR$210.31M13.4%
CL A$64.78M4.1%
CAP STK CL A$47.48M3.0%
SHS$32.92M2.1%
Portfolio Concentration
Top 3$723.11M46.0%
4–10$337.23M21.5%
11–25$406.41M25.9%
Rest$105.05M6.7%
Top 3 weight
46.0%
Top 10 weight
67.5%
Voting Authority Distribution
Total shares with voting rights: 12.97M
Sole
Full voting authority
12.97M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole323
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings323
Rows:
STATE STR SPDR S&P 500 ETF T
SOLEShares417K
TypeSH
Market value$271.94M
17.30%
Sole
417K
Shared
0.00
None
0.00
J P MORGAN EXCHANGE TRADED F
SOLEShares4.76M
TypeSH
Market value$240.86M
15.32%
Sole
4.76M
Shared
0.00
None
0.00
ISHARES TR
SOLEShares4.15M
TypeSH
Market value$210.31M
13.38%
Sole
4.15M
Shared
0.00
None
0.00
AMPHENOL CORP
SOLEShares501.46K
TypeSH
Market value$63.49M
4.04%
Sole
501.46K
Shared
0.00
None
0.00
QUANTA SVCS INC
SOLEShares100.31K
TypeSH
Market value$55.07M
3.50%
Sole
100.31K
Shared
0.00
None
0.00
AMAZON COM INC
SOLEShares236.43K
TypeSH
Market value$49.24M
3.13%
Sole
236.43K
Shared
0.00
None
0.00
ALPHABET INC
SOLEShares165.13K
TypeSH
Market value$47.48M
3.02%
Sole
165.13K
Shared
0.00
None
0.00
COSTCO WHOLESALE CORPORATION
SOLEShares45.09K
TypeSH
Market value$44.93M
2.86%
Sole
45.09K
Shared
0.00
None
0.00
MICROSOFT CORP
SOLEShares113.93K
TypeSH
Market value$42.17M
2.68%
Sole
113.93K
Shared
0.00
None
0.00
JPMORGAN CHASE & CO
SOLEShares118.47K
TypeSH
Market value$34.85M
2.22%
Sole
118.47K
Shared
0.00
None
0.00
AMERICAN EXPRESS CO
SOLEShares113.75K
TypeSH
Market value$34.41M
2.19%
Sole
113.75K
Shared
0.00
None
0.00
NVIDIA CORPORATION
SOLEShares189.08K
TypeSH
Market value$32.98M
2.10%
Sole
189.08K
Shared
0.00
None
0.00
EATON CORP PLC
SOLEShares91.44K
TypeSH
Market value$32.70M
2.08%
Sole
91.44K
Shared
0.00
None
0.00
GOLDMAN SACHS GROUP INC
SOLEShares37.77K
TypeSH
Market value$31.95M
2.03%
Sole
37.77K
Shared
0.00
None
0.00
WASTE MGMT INC DEL
SOLEShares128.31K
TypeSH
Market value$29.49M
1.88%
Sole
128.31K
Shared
0.00
None
0.00
NORTHROP GRUMMAN CORP
SOLEShares43.11K
TypeSH
Market value$29.41M
1.87%
Sole
43.11K
Shared
0.00
None
0.00
BERKSHIRE HATHAWAY INC DEL
SOLEShares55.90K
TypeSH
Market value$26.79M
1.70%
Sole
55.90K
Shared
0.00
None
0.00
ELI LILLY & CO
SOLEShares28.07K
TypeSH
Market value$25.82M
1.64%
Sole
28.07K
Shared
0.00
None
0.00
VERTEX PHARMACEUTICALS INC
SOLEShares57.79K
TypeSH
Market value$25.81M
1.64%
Sole
57.79K
Shared
0.00
None
0.00
CINTAS CORP
SOLEShares151.64K
TypeSH
Market value$25.65M
1.63%
Sole
151.64K
Shared
0.00
None
0.00
ISHARES TR
SOLEShares273.81K
TypeSH
Market value$24.79M
1.58%
Sole
273.81K
Shared
0.00
None
0.00
APPLE INC
SOLEShares94.34K
TypeSH
Market value$23.94M
1.52%
Sole
94.34K
Shared
0.00
None
0.00
BROADCOM INC
SOLEShares75.39K
TypeSH
Market value$23.33M
1.48%
Sole
75.39K
Shared
0.00
None
0.00
THERMO FISHER SCIENTIFIC INC
SOLEShares45.10K
TypeSH
Market value$22.19M
1.41%
Sole
45.10K
Shared
0.00
None
0.00
VANGUARD INDEX FDS
SOLEShares53.49K
TypeSH
Market value$17.16M
1.09%
Sole
53.49K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
STATE STR SPDR S&P 500 ETF TSOLE | TR UNIT | 417K | SH | $271.94M 17.30% | 417K | 0.00 | 0.00 |
J P MORGAN EXCHANGE TRADED FSOLE | ULTRA SHRT ETF | 4.76M | SH | $240.86M 15.32% | 4.76M | 0.00 | 0.00 |
ISHARES TRSOLE | ULTRA SHORT DUR | 4.15M | SH | $210.31M 13.38% | 4.15M | 0.00 | 0.00 |
AMPHENOL CORPSOLE | CL A | 501.46K | SH | $63.49M 4.04% | 501.46K | 0.00 | 0.00 |
QUANTA SVCS INCSOLE | COM | 100.31K | SH | $55.07M 3.50% | 100.31K | 0.00 | 0.00 |
AMAZON COM INCSOLE | COM | 236.43K | SH | $49.24M 3.13% | 236.43K | 0.00 | 0.00 |
ALPHABET INCSOLE | CAP STK CL A | 165.13K | SH | $47.48M 3.02% | 165.13K | 0.00 | 0.00 |
COSTCO WHOLESALE CORPORATIONSOLE | COM | 45.09K | SH | $44.93M 2.86% | 45.09K | 0.00 | 0.00 |
MICROSOFT CORPSOLE | COM | 113.93K | SH | $42.17M 2.68% | 113.93K | 0.00 | 0.00 |
JPMORGAN CHASE & COSOLE | COM | 118.47K | SH | $34.85M 2.22% | 118.47K | 0.00 | 0.00 |
AMERICAN EXPRESS COSOLE | COM | 113.75K | SH | $34.41M 2.19% | 113.75K | 0.00 | 0.00 |
NVIDIA CORPORATIONSOLE | COM | 189.08K | SH | $32.98M 2.10% | 189.08K | 0.00 | 0.00 |
EATON CORP PLCSOLE | SHS | 91.44K | SH | $32.70M 2.08% | 91.44K | 0.00 | 0.00 |
GOLDMAN SACHS GROUP INCSOLE | COM | 37.77K | SH | $31.95M 2.03% | 37.77K | 0.00 | 0.00 |
WASTE MGMT INC DELSOLE | COM | 128.31K | SH | $29.49M 1.88% | 128.31K | 0.00 | 0.00 |
NORTHROP GRUMMAN CORPSOLE | COM | 43.11K | SH | $29.41M 1.87% | 43.11K | 0.00 | 0.00 |
BERKSHIRE HATHAWAY INC DELSOLE | CL B NEW | 55.90K | SH | $26.79M 1.70% | 55.90K | 0.00 | 0.00 |
ELI LILLY & COSOLE | COM | 28.07K | SH | $25.82M 1.64% | 28.07K | 0.00 | 0.00 |
VERTEX PHARMACEUTICALS INCSOLE | COM | 57.79K | SH | $25.81M 1.64% | 57.79K | 0.00 | 0.00 |
CINTAS CORPSOLE | COM | 151.64K | SH | $25.65M 1.63% | 151.64K | 0.00 | 0.00 |
ISHARES TRSOLE | CORE MSCI EAFE | 273.81K | SH | $24.79M 1.58% | 273.81K | 0.00 | 0.00 |
APPLE INCSOLE | COM | 94.34K | SH | $23.94M 1.52% | 94.34K | 0.00 | 0.00 |
BROADCOM INCSOLE | COM | 75.39K | SH | $23.33M 1.48% | 75.39K | 0.00 | 0.00 |
THERMO FISHER SCIENTIFIC INCSOLE | COM | 45.10K | SH | $22.19M 1.41% | 45.10K | 0.00 | 0.00 |
VANGUARD INDEX FDSSOLE | TOTAL STK MKT | 53.49K | SH | $17.16M 1.09% | 53.49K | 0.00 | 0.00 |
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