Q2 2026 13F · SEC CIK 2011882

Foster Dykema Cabot & Partners, LLC

Wealth managerFiled 2026-08-11 for Q2 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $1.7B
Reported positions: 324
Top holdings a year, 3 yrs: +14.2%
Assets under management: $2.2B

Foster Dykema Cabot & Partners, LLC is a wealth manager that reported 324 positions worth $1.7B in its Q2 2026 13F, filed 2026-08-11. Its largest holdings were State Str Spdr S&p 500 ETF T (SPY, 18.1%), J P Morgan Exchange Traded F (JPST, 14.2%), Ishares Tr (ICSH, 12.4%). A portfolio copying its top holdings returned 14.2% a year over the last 3 years, against 18.8% for the S&P 500.

Foster Dykema Cabot & Partners, LLC holdings largest 50 of 324 positions.

Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Foster Dykema Cabot & Partners, LLC 13F holdings
Stock	% of 13F value	Q1 2026	Shares	Share change	Reported value
SPYState Str Spdr S&p 500 ETF T	18.1%	17.3%	415,216	-0.4%	$310.9M
JPSTJ P Morgan Exchange Traded F	14.2%	15.3%	4,831,585	+1.5%	$244.3M
ICSHIshares Tr	12.4%	13.4%	4,228,824	+1.8%	$213.9M
APHAmphenol Corp	5.0%	4.0%	490,184	-2.2%	$86.6M
PWRQuanta Svcs Inc	4.0%	3.5%	95,528	-4.8%	$68.8M
GOOGLAlphabet Inc	3.4%	3.0%	164,599	-0.3%	$58.8M
AMZNAmazon Com Inc	3.3%	3.1%	234,823	-0.7%	$56.0M
MSFTMicrosoft Corp	2.5%	2.7%	114,756	+0.7%	$42.8M
COSTCostco Wholesale Corporation	2.4%	2.9%	44,950	-0.3%	$42.0M
AXPAmerican Express Co	2.3%	2.2%	114,771	+0.9%	$38.8M
JPMJpmorgan Chase & Co	2.3%	2.2%	118,488	+0.0%	$38.8M
GSGoldman Sachs Group Inc	2.2%	2.0%	37,840	+0.2%	$38.3M
ETNEaton Corp PLC	2.2%	2.1%	89,386	-2.2%	$38.1M
NVDANvidia Corporation	2.2%	2.1%	187,161	-1.0%	$37.4M
LLYEli Lilly & Co	2.0%	1.6%	28,025	-0.2%	$33.6M
VRTXVertex Pharmaceuticals Inc	1.7%	1.6%	58,233	+0.8%	$28.9M
AVGOBroadcom Inc	1.7%	1.5%	75,826	+0.6%	$28.6M
WMWaste Mgmt Inc Del	1.7%	1.9%	128,426	+0.1%	$28.6M
BRK-BBerkshire Hathaway Inc Del	1.6%	1.7%	55,263	-1.1%	$27.7M
AAPLApple Inc	1.6%	1.5%	93,009	-1.4%	$26.9M
CTASCintas Corp	1.5%	1.6%	152,915	+0.8%	$26.0M
IEFAIshares Tr	1.5%	1.6%	266,087	-2.8%	$25.7M
NOCNorthrop Grumman Corp	1.3%	1.9%	43,114	+0.0%	$22.0M
TMOThermo Fisher Scientific Inc	1.2%	1.4%	41,685	-7.6%	$20.9M
VTIVanguard Index Fds	1.1%	1.1%	53,235	-0.5%	$19.7M
GOOGAlphabet Inc	0.6%	0.6%	30,795	-0.7%	$10.9M
XLKSelect Sector Spdr Tr	0.6%	0.5%	54,152	+0.0%	$10.3M
INDBIndependent Bk Corp Mass	0.4%	0.4%	82,067	+0.0%	$6.9M
SPYXSpdr Series Trust	0.4%	0.3%	100,831	+0.0%	$6.2M
VOOVanguard Index Fds	0.3%	0.3%	7,971	-1.8%	$5.5M
IWFIshares Tr	0.3%	0.3%	42,269	+296.0%	$5.2M
PGProcter & Gamble Co	0.2%	0.2%	25,877	-3.5%	$3.8M
IVVIshares Tr	0.2%	0.2%	4,074	-3.9%	$3.1M
IWDIshares Tr	0.1%	0.1%	9,581	-0.6%	$2.3M
SDGIshares Tr	0.1%	0.1%	21,421	+0.0%	$1.9M
WMTWalmart Inc	0.1%	0.1%	15,938	+0.6%	$1.8M
PHYSSprott Asset Management LP	0.1%	0.1%	57,942	-0.2%	$1.7M
CSCOCisco Sys Inc	0.1%	0.1%	14,028	+1.4%	$1.6M
VEUVanguard Intl Equity Index F	0.1%	0.1%	18,599	+0.0%	$1.6M
CATCaterpillar Inc	0.1%	0.1%	1,458	+2.8%	$1.6M
MSMorgan Stanley	0.1%	0.1%	6,473	+0.0%	$1.4M
VVisa Inc	0.1%	0.1%	3,876	-14.3%	$1.3M
JNJJohnson & Johnson	0.1%	0.1%	5,153	+0.0%	$1.3M
SPGIS&p Global Inc	0.1%	0.1%	2,859	+0.0%	$1.2M
PEPPepsico Inc	0.1%	0.1%	8,572	+0.0%	$1.2M
MCDMcdonalds Corp	0.1%	0.1%	4,250	+0.0%	$1.1M
QQQInvesco Qqq Tr	0.1%	0.1%	1,528	-5.4%	$1.1M
MRKMerck & Co Inc	0.1%	0.1%	8,626	+0.0%	$1.1M
PLDPrologis Inc	0.1%	0.1%	8,149	+0.0%	$1.1M
IVWIshares Tr	0.1%	—	7,197	—	$990K

What Foster Dykema Cabot & Partners, LLC bought and sold in Q2 2026, against Q1 2026.

New positions

Q1 2026's filing was too long to tell new positions apart.

Share counts compared with the Q1 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: +14.3% /yr; S&P 500 +20.1%
3 years: +14.2% /yr; S&P 500 +18.8%
5 years: —

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q2 2026	$1.7B	324
Q1 2026	$1.6B	323
Q4 2025	$1.6B	330
Q3 2025	$1.5B	418
Q2 2025	$1.4B	340
Q1 2025	$1.2B	339
Q4 2024	$1.3B	376
Q3 2024	$1.2B	517
Q2 2024	$1.1B	330
Q1 2024	$1.1B	317
Q4 2023	$943.9M	314

Questions about Foster Dykema Cabot & Partners, LLC's portfolio

What stocks does Foster Dykema Cabot & Partners, LLC own?

Foster Dykema Cabot & Partners, LLC's latest 13F, for Q2 2026 and filed Aug 11, 2026, lists 324 positions worth $1.7B. The largest are State Str Spdr S&p 500 ETF T (SPY) at 18.1%, J P Morgan Exchange Traded F (JPST) at 14.2%, Ishares Tr (ICSH) at 12.4%, Amphenol Corp (APH) at 5.0% and Quanta Svcs Inc (PWR) at 4.0%.

What did Foster Dykema Cabot & Partners, LLC buy last quarter?

In Q2 2026, Foster Dykema Cabot & Partners, LLC added Ishares Tr (IWF) (+296.0% shares), compared with its Q1 2026 filing.

What did Foster Dykema Cabot & Partners, LLC sell last quarter?

In Q2 2026, Foster Dykema Cabot & Partners, LLC cut from its top 50 Exxon Mobil Corp (XOM), Visa Inc (V) (-14.3% shares), Thermo Fisher Scientific Inc (TMO) (-7.6% shares) and Invesco Qqq Tr (QQQ) (-5.4% shares), compared with its Q1 2026 filing.

How has Foster Dykema Cabot & Partners, LLC's portfolio performed?

A portfolio copying Foster Dykema Cabot & Partners, LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +14.2% a year over the last 3 years, against +18.8% for the S&P 500. Over 1 year: +14.3% against +20.1%.

When is Foster Dykema Cabot & Partners, LLC's next 13F filing due?

13F filings are due 45 days after each quarter ends. Foster Dykema Cabot & Partners, LLC's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.

How much money does Foster Dykema Cabot & Partners, LLC manage?

Foster Dykema Cabot & Partners, LLC reported $2.2B of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $1.7B.