Foster Dykema Cabot & Partners, LLC

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 14, 2026), Foster Dykema Cabot & Partners, LLC reported 323 stock positions worth $1.6 billion. Its top holding was SS SPDR S&P 500 ETF Trust-US (SPY) at 17.3% of the portfolio, followed by JPMorgan Ultra-Short Income (JPST, 15.3%) and iShares Ultra Short Duration (ICSH, 13.4%). Compared with Q4 2025, it opened 2 new positions, sold out of 9, added to 10 and reduced 54. The biggest buy was iShares Ultra Short Duration (ICSH, shares +3%) and the biggest sale SS SPDR S&P 500 ETF Trust-US (SPY, shares −0%).

Most Recent 13F
Q2 2026
Location
WALTHAM, MA
CIK
0002011882
Portfolio Value
$1.6B (Q1 2026)
SEC Filing
0002011882-26-000002 ↗ filed May 14, 2026

Holdings Value

0$500.0M$1.0B$1.5B$2.0B Q1 2024: $1.1B Q1 2024 Q2 2024: $1.1B Q2 2024 Q3 2024: $1.2B Q3 2024 Q4 2024: $1.3B Q4 2024 Q1 2025: $1.2B Q1 2025 Q2 2025: $1.4B Q2 2025 Q3 2025: $1.5B Q3 2025 Q4 2025: $1.6B Q4 2025 Q1 2026: $1.6B $1.6B Q1 2026 Q2 2026: $1.7B Q2 2026

Holdings 323 stocks · $1.6B
SPY SS SPDR S&P 500 ETF Trust-US 17.30% 417,001 $271.9M Reduce -0.2%
JPST JPMorgan Ultra-Short Income 15.32% 4,759,095 $240.9M Reduce -2.6%
ICSH iShares Ultra Short Duration 13.38% 4,154,724 $210.3M Add +3.2%
APH Amphenol Corp. Class A 4.04% 501,462 $63.5M Reduce -1.7%
PWR Quanta Services Inc. 3.50% 100,312 $55.1M Reduce -1.6%
AMZN Amazon.com Inc. 3.13% 236,429 $49.2M Reduce -0.3%
GOOGL Alphabet Inc. Class A 3.02% 165,126 $47.5M Add +0.5%
COST Costco Wholesale Corp. 2.86% 45,089 $44.9M Reduce -0.3%
MSFT Microsoft Corp. 2.68% 113,927 $42.2M Add +0.4%
JPM JPMorgan Chase & Co. 2.22% 118,474 $34.9M Reduce -1.0%
AXP American Express Co. 2.19% 113,749 $34.4M Add +0.3%
NVDA Nvidia Corp. 2.10% 189,078 $33.0M Reduce -1.4%
ETN Eaton Corp. PLC 2.08% 91,438 $32.7M Reduce -0.7%
GS Goldman Sachs Group Inc. 2.03% 37,766 $31.9M Add +2.4%
WM Waste Management Inc. 1.88% 128,314 $29.5M Reduce -0.3%
NOC Northrop Grumman Corp. 1.87% 43,111 $29.4M Reduce -1.9%
BRK.B Berkshire Hathaway Inc. Class B 1.70% 55,901 $26.8M Reduce -0.5%
LLY Eli Lilly & Co. 1.64% 28,073 $25.8M Reduce -0.2%
VRTX Vertex Pharmaceuticals Inc. 1.64% 57,792 $25.8M Reduce -0.9%
CTAS Cintas Corp. 1.63% 151,639 $25.6M Reduce -0.5%
IEFA iShares Core MSCI Eafe ETF 1.58% 273,806 $24.8M Reduce -1.6%
AAPL Apple Inc. 1.52% 94,336 $23.9M Reduce -1.8%
AVGO Broadcom Inc. 1.48% 75,391 $23.3M Add +4.1%
TMO Thermo Fisher Scientific Inc. 1.41% 45,103 $22.2M Reduce -0.3%
VTI VG Morningstar TS MKT ETF-US 1.09% 53,492 $17.2M Reduce -0.7%
GOOG Alphabet Inc. Class C 0.57% 31,007 $8.9M Reduce -2.2%
XLK SS Technology Select Sector 0.46% 54,152 $7.2M Reduce -0.8%
INDB Independent Bank Corp. 0.40% 82,067 $6.2M No change
SPYX SS SPDR S&P 500 Foss FL ETF 0.34% 100,831 $5.3M No change
VOO Vanguard S&P 500 ETF 0.31% 8,120 $4.9M No change
IWF iShares Russell 1000 Growth 0.29% 10,673 $4.6M Reduce -0.8%
PG The Procter & Gamble Co. 0.25% 26,828 $3.9M Reduce -1.5%
IVV iShares Core S&P 500 ETF 0.18% 4,240 $2.8M Reduce -0.3%
IWD iShares Russell 1000 Value E 0.13% 9,635 $2.1M Reduce -1.2%
PHYS Sprott Physical Gold Trust 0.13% 58,084 $2.1M No change
WMT Walmart Inc. 0.13% 15,838 $2.0M No change
SDG Ish MSCI Glob Sust Deve Goal 0.11% 21,421 $1.8M No change
VEU Vanguard Ftse All-World Ex-U 0.09% 18,599 $1.4M No change
V Visa Inc. Class A 0.09% 4,522 $1.4M No change
PEP Pepsico Inc. 0.08% 8,572 $1.3M Reduce -6.2%
MCD McDonald's Corp. 0.08% 4,250 $1.3M No change
JNJ Johnson & Johnson 0.08% 5,153 $1.3M No change
SPGI S&P Global Inc. 0.08% 2,859 $1.2M No change
PLD Prologis Inc. 0.07% 8,149 $1.1M No change
CSCO Cisco Systems Inc. 0.07% 13,828 $1.1M Add +2.8%
MS Morgan Stanley 0.07% 6,473 $1.1M No change
MRK Merck & Co. Inc. 0.07% 8,626 $1.0M Reduce -2.6%
CAT Caterpillar Inc. 0.06% 1,418 $1.0M No change
XOM Exxon Mobil Corp. 0.06% 5,645 $958K No change
QQQ Invesco QQQ Trust Series 1 0.06% 1,615 $932K No change
KO The Coca-Cola Co. 0.06% 12,041 $922K Reduce -1.5%
LMT Lockheed Martin Corp. 0.05% 1,425 $861K No change
TJX TJX Companies Inc. filed as TJX COS INC NEW 0.05% 5,388 $860K Reduce -3.6%
BLK BlackRock Inc. 0.05% 881 $847K No change
ABBV Abbvie Inc. 0.05% 3,874 $843K Reduce -1.1%
RTX RTX Corp. 0.05% 4,257 $821K No change
IVW iShares S&P 500 Growth ETF 0.05% 7,197 $814K Reduce -10.5%
PSLV Sprott Physical Silver Trust 0.05% 31,120 $759K No change
VO Vngrd Mrngstr MD-Cap ETF-Usd 0.05% 2,553 $733K No change
TEL Te Connectivity PLC 0.04% 3,235 $676K No change
UNP Union Pacific Corp. 0.04% 2,777 $674K No change
VEA Vanguard Ftse Developed ETF 0.04% 10,237 $656K Reduce -0.2%
ADP Automatic Data Processing 0.04% 3,120 $640K Reduce -6.0%
VUG Vanguard Mrngstar GR ETF-Sui 0.04% 1,390 $607K No change
ABT Abbott Laboratories 0.04% 5,831 $599K Reduce -6.2%
ZTS Zoetis Inc. 0.04% 5,040 $596K Reduce -1.9%
PM Philip Morris International 0.04% 3,386 $565K No change
DFUS Dimensional US Eq MKT ETF 0.04% 7,908 $561K No change
ACN Accenture PLC Class A 0.03% 2,754 $546K Reduce -7.7%
IWR iShares Russell Mid-Cap ETF 0.03% 5,509 $536K Reduce -13.3%
NFLX Netflix Inc. 0.03% 5,480 $527K No change
TSLA Tesla Inc. 0.03% 1,398 $520K Reduce -9.3%
CB Chubb Ltd. 0.03% 1,576 $515K No change
DIS The Walt Disney Co. filed as DISNEY WALT CO 0.03% 5,254 $506K No change
IDXX Idexx Laboratories Inc. 0.03% 895 $503K No change
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.03% 1,982 $480K No change
MAR Marriott International Class A 0.03% 1,373 $449K No change
IWM iShares Russell 2000 ETF 0.03% 1,777 $441K No change
DHR Danaher Corp. 0.03% 2,191 $416K Reduce -2.0%
ORCL Oracle Corp. 0.03% 2,787 $410K No change
DGRW Wisdomtree U.S. Quality Divi 0.03% 4,536 $398K No change
GE General Electric filed as GE AEROSPACE 0.03% 1,399 $398K No change
TSM Taiwan Semiconductor-SP ADR 0.02% 1,143 $387K No change
ECL Ecolab Inc. 0.02% 1,333 $356K No change
VB Vanguard Most SM-Cap ETF-Usd 0.02% 1,295 $339K No change
VTV Vanguard Mrngstr Val ETF-Aui 0.02% 1,690 $332K No change
KNSL Kinsale Capital Group Inc. 0.02% 944 $323K No change
KRBN KS Global Carbon Stratgy ETF 0.02% 10,695 $318K No change
IJR iShares Core S&P Small-Cap E 0.02% 2,554 $317K No change
ADI Analog Devices Inc. 0.02% 997 $317K No change
HD Home Depot Inc. 0.02% 962 $316K Reduce -9.4%
GEV GE Vernova Inc. 0.02% 349 $305K No change
IBDR iShares Ibonds Dec 2026 Term 0.02% 12,500 $303K No change
VT Vanguard Tot World STK ETF 0.02% 2,157 $298K No change
WSO Watsco Inc. 0.02% 810 $295K No change
EQX Equinox Gold Corp. 0.02% 20,322 $294K No change
GLD SPDR Gold Shares 0.02% 681 $293K No change
QCOM Qualcomm Inc. 0.02% 2,214 $285K No change
IBDT iShares Ibonds Dec 2028 ETF 0.02% 11,200 $284K No change
EFAX State Street SPDR MSCI Eafe 0.02% 5,699 $284K No change

Show all 323 holdings

Portfolio Sells Q4 2025 → Q1 2026
SPY SS SPDR S&P 500 ETF Trust-US Reduce -0.2% 17.30% −0.26
AMZN Amazon.com Inc. Reduce -0.3% 3.13% −0.23
LLY Eli Lilly & Co. Reduce -0.2% 1.64% −0.21
APH Amphenol Corp. Class A Reduce -1.7% 4.04% −0.21
TMO Thermo Fisher Scientific Inc. Reduce -0.3% 1.41% −0.20
JPM JPMorgan Chase & Co. Reduce -1.0% 2.22% −0.15
CTAS Cintas Corp. Reduce -0.5% 1.63% −0.13
NVDA Nvidia Corp. Reduce -1.4% 2.10% −0.10
AAPL Apple Inc. Reduce -1.8% 1.52% −0.08
LOW Lowe's Cos Inc. Reduce -75.8% 0.02% −0.05
GOOG Alphabet Inc. Class C Reduce -2.2% 0.57% −0.05
BRK.B Berkshire Hathaway Inc. Class B Reduce -0.5% 1.70% −0.03
KKR KKR & Co. Inc. Reduce -95.0% 0.00% −0.03
XLK SS Technology Select Sector Reduce -0.8% 0.46% −0.03
MSI Motorola Solutions Inc. Sold out 0.00% −0.02
IWF iShares Russell 1000 Growth Reduce -0.8% 0.29% −0.02
SNPS Synopsys Inc. Sold out 0.00% −0.02
META Meta Platforms Inc. Class A Reduce -88.0% 0.00% −0.02
NOW ServiceNow Inc. Sold out 0.00% −0.02
VTI VG Morningstar TS MKT ETF-US Reduce -0.7% 1.09% −0.02
PANW Palo Alto Networks Inc. Reduce -96.3% 0.00% −0.02
ACN Accenture PLC Class A Reduce -7.7% 0.03% −0.01
MTB M & T Bank Corp. Reduce -51.6% 0.01% −0.01
ADP Automatic Data Processing Reduce -6.0% 0.04% −0.01
ABT Abbott Laboratories Reduce -6.2% 0.04% −0.01
TSLA Tesla Inc. Reduce -9.3% 0.03% −0.01
SPYM Ste STR SPDR PT S&P 500 ETF Sold out 0.00% −0.01
IVW iShares S&P 500 Growth ETF Reduce -10.5% 0.05% −0.01
IWN iShares Russell 2000 Value E Sold out 0.00% −0.01
MELI MercadoLibre Inc. Reduce -51.1% 0.01% −0.01
MMM 3M Co. Reduce -45.3% 0.01% −0.01
DHR Danaher Corp. Reduce -2.0% 0.03% −0.01
DUK Duke Energy Corp. Sold out 0.00% −0.00
MDY State Street SPDR S&P Midcap Reduce -57.5% 0.00% −0.00
IWR iShares Russell Mid-Cap ETF Reduce -13.3% 0.03% −0.00
IVV iShares Core S&P 500 ETF Reduce -0.3% 0.18% −0.00
QUAL iShares MSCI USA Quality Fac Reduce -91.3% 0.00% −0.00
HD Home Depot Inc. Reduce -9.4% 0.02% −0.00
ALL Allstate Corp. Sold out 0.00% −0.00
ZTS Zoetis Inc. Reduce -1.9% 0.04% −0.00
IWB iShares Russell 1000 ETF Reduce -51.1% 0.00% −0.00
ABBV Abbvie Inc. Reduce -1.1% 0.05% −0.00
UPS United Parcel Service Class B Sold out 0.00% −0.00
VZ Verizon Communications Inc. Sold out 0.00% −0.00
SOLS Solstice Adv Materials Inc. Reduce -87.2% 0.00% −0.00
EFA iShares MSCI Eafe ETF Reduce -11.7% 0.00% −0.00
IJH iShares Core S&P Midcap ETF Reduce -2.2% 0.01% +0.00
AZN Astrazeneca PLC Reduce -0.1% 0.01% +0.00
TJX TJX Companies Inc. Reduce -3.6% 0.05% +0.00
VEA Vanguard Ftse Developed ETF Reduce -0.2% 0.04% +0.00

Portfolio Buys Q4 2025 → Q1 2026
ICSH iShares Ultra Short Duration Add +3.2% 13.38% +0.87
GS Goldman Sachs Group Inc. Add +2.4% 2.03% +0.04
CSCO Cisco Systems Inc. Add +2.8% 0.07% +0.00
VIG Vanguard Dividend Apprec ETF Add +14.8% 0.01% +0.00
VYM Vanguard High DVD Yield ETF New 0.00% +0.00
VPU Vanguard Utilities ETF New 0.00% +0.00
SDY SS SPDR S&P Dividend ETF Add +0.9% 0.00% +0.00
WAT Waters Corp. Add +3.5% 0.01% −0.00
AVGO Broadcom Inc. Add +4.1% 1.48% −0.06
GOOGL Alphabet Inc. Class A Add +0.5% 3.02% −0.14
AXP American Express Co. Add +0.3% 2.19% −0.39
MSFT Microsoft Corp. Add +0.4% 2.68% −0.69

Notes & Other Activity Q4 2025 → Q1 2026
EEM iShares MSCI Emerging Market MSCI EMG MKT ETF Sold out 0 $14before exit

Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 324$1.7BSPY, JPST, ICSH, APH, PWR
Q1 2026 323$1.6BSPY, JPST, ICSH, APH, PWR
Q4 2025 329$1.6BSPY, JPST, ICSH, APH, MSFT
Q3 2025 421$1.5BSPY, JPST, ICSH, APH, MSFT
Q2 2025 343$1.4BSPY, JPST, ICSH, APH, MSFT
Q1 2025 342$1.2BSPY, JPST, ICSH, AMZN, MSFT
Q4 2024 379$1.3BSPY, JPST, ICSH, AMZN, MSFT
Q3 2024 520$1.2BSPY, JPST, MSFT, AMZN, ICSH
Q2 2024 332$1.1BSPY, JPST, AMZN, MSFT, ICSH
Q1 2024 320$1.1BSPY, JPST, AMZN, MSFT, ICSH