FOSTER DYKEMA CABOT & CO INC/MA

Registered adviser

CIK

1037558

Location

WALTHAM, MA

Portfolio Value

Small $824,771,533

Diversification

Diversified

Filing Date

Global Rank

#1,939 / 7,036 ▼ 4 · as of Sep 2023

Top Industry

Internet Retail 7.7%

Period ended 3 years ago

Filed Nov 14, 2023 · 2y

15 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Registered adviser

Form ADV roster, Nov 1, 2026

Form ADV adviser

CRD 300282

Roster of Nov 1, 2026

Regulatory AUM

$2,223,188,313

Main clients

Individuals and high net worth (85% of AUM)

Private funds

8 funds · Private equity funds

Focus by fund count, roster of Nov 1, 2026

$110,990,417 gross assets

Private funds on Schedule D 7.B.(1)

As filed Oct 16, 2024; SEC's bulk Form ADV archive ends with 2024 filings.

$88,052,574 gross assets in 7 funds Private equity funds $88,052,574 (7)

Form ADV history

Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.

Rosters	Regulatory AUM	Main clients
Apr 2026 to Nov 2026	$2,223,188,313	Individuals and high net worth (85%)
May 2025 to Mar 2026	$1,995,237,359	Individuals and high net worth (84%)
Apr 2025	$1,995,346,170	Individuals and high net worth (84%)
Apr 2024 to Mar 2025	$1,709,196,789	Individuals and high net worth (84%)
May 2023 to Mar 2024	$1,546,147,051	Individuals and high net worth (89%)
Apr 2023	$1,546,147,051	Individuals and high net worth (89%)

4 earlier changes not shown.

Stated strategy

Fundamental active, Fixed income / rates, Multi-asset, Private markets Form ADV Part 2A, Mar 27, 2026 · original

In the firm's words

Fundamental active: FDC employs fundamental financial analysis to select the publicly traded investments we make for client portfolios.
Fixed income / rates: We primarily invest in publicly traded stocks, bonds, exchange traded funds, and mutual funds.
Multi-asset: Our allocation to cash, bonds, stocks, exchange-traded funds (ETFs), or mutual funds in a client’s account is governed by an investment allocation guideline
Private markets: For qualified clients we also invest in private securities, including private equity and private real estate funds

13F reports continue under

FOSTER DYKEMA CABOT & PARTNERS, LLC from Dec 31, 2023

Portfolio style

Measured from the filed 13F common-share book for Sep 30, 2023, never from the firm's own description.

Style

Concentrated

The top 10 positions are 62.8% of the book (60%+)

Turnover

Low turnover

8.1% over the last four quarters (under 30%)

Horizon

Long horizon

Value-weighted holding period 12.1 quarters (12+), a floor since 65.3% of the book was already held when coverage starts

Closest benchmark: every 13F filer's combined book, active share 76.4%; sector active share 35.6% against the combined 13F book's sector weights.

Over time 15 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

326 tracked positions · as of Sep 30, 2023 · Δ vs Jun 30, 2023

Top Position

22.1%

−0.2 pts

Top 5

46.2%

+0.4 pts

Top 10

62.8%

+1.0 pts

HHI

793

Diversified+4

Portfolio Trend

15 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2023

Sector	% Portfolio	Value	Positions
Unclassified	48.2%	$397,383,770	72
Technology	11.4%	$93,681,429	33
Financial Services	10.0%	$82,458,806	41
Healthcare	9.2%	$76,134,523	39
Industrials	7.0%	$58,063,096	37
Consumer Cyclical	6.2%	$50,804,732	30
Consumer Defensive	4.4%	$36,165,659	15
Real Estate	2.2%	$18,164,741	5
Communication Services	1.1%	$9,160,854	14
Energy	0.2%	$1,596,826	13
Utilities	0.1%	$914,666	18
Basic Materials	0.0%	$242,431	9

Last Quarter's Activity

Export CSV

Sep 30, 2023 vs Jun 30, 2023

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
JPST	JPMorgan Ultra-Short Income ETF	+47,768	1,757,225	$88,177,550
ICSH	iShares Ultra Short Duration Bond Active ETF	+6,185	690,100	$34,767,238
RSP	Victory Portfolios II	+3,850	9,845	$1,394,938
NKE	NIKE, Inc.	+3,632	3,660	$349,969
PFE	Pfizer Inc	+2,400	9,395	$311,632
NVO	Novo Nordisk A S	+1,545	3,090	$281,004
XLF	State Street Corp	+1,287	419,217	$13,905,427
IVV	iShares Core S&P 500 ETF	+1,270	3,967	$1,703,548
XOM	ExxonMobil Holdings Corp	+1,136	7,209	$847,634
SRE	Sempra	+818	1,636	$111,297
MRK	Merck & Co., Inc.	+750	8,836	$909,666
JNJ	Johnson & Johnson	+733	4,652	$724,549
SPY	Spdr S&P 500 ETF Trust	+703	426,018	$182,114,174
XLV	State Street(R) Health Care Select Sector SPDR(R) ETF	+688	136,034	$17,513,017
IBM	International Business Machines Corp	+666	2,036	$285,650
PEP	Pepsico Inc	+585	11,104	$1,881,461
PLD	Prologis, Inc.	+556	160,640	$18,025,414
WM	Waste Management Inc	+426	111,521	$17,000,261
GE	General Electric Co	+366	1,438	$158,970
JPM	Jpmorgan Chase & Co	+354	147,344	$21,367,826
XLI	State Street(R) Industrial Select Sector SPDR(R) ETF	+267	202,080	$20,486,870
PRF	Victory Portfolios II	+248	310	$9,864
DIS	Walt Disney Co	+195	7,895	$639,889
BMY	Bristol Myers Squibb Co	+166	2,045	$118,691
RTX	RTX Corp	+133	3,347	$240,883
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
NMT	Nuveen Massachusetts Quality Municipal Income Fund	−47,960	22,547	$213,745
EEM	iShares MSCI Emerging Markets ETF	−5,570	200	$7,590
IEFA	iShares Core MSCI EAFE ETF	−5,359	209,000	$13,449,150
MS	Morgan Stanley	−4,971	4,968	$405,736
VEA	Vanguard FTSE Developed Markets ETF	−4,721	4,680	$204,609
AMZN	Amazon Com Inc	−3,646	259,949	$33,044,716
VT	VANGUARD TOTAL WORLD STOCK INDEX FUND	−3,298	2,157	$200,989
MTB	M&T Bank Corp	−2,734	1,090	$137,830
VTI	VANGUARD TOTAL STOCK MARKET INDEX FUND	−1,271	60,235	$12,794,516
AAPL	Apple Inc.	−1,100	84,619	$14,487,618
VOO	VANGUARD 500 INDEX FUND	−949	6,056	$2,378,191
APH	Amphenol Corp	−765	290,996	$24,440,754
BRK-B	Berkshire Hathaway Inc	−526	60,605	$21,229,931
D	Dominion Energy, Inc	−368	550	$24,568
PWR	Quanta Services, Inc.	−317	122,963	$23,002,688
PG	PROCTER & GAMBLE Co	−254	32,844	$4,790,625
COST	Costco Wholesale Corp	−231	46,424	$26,227,703
IWF	iShares Russell 1000 Growth ETF	−229	13,067	$3,475,691
—		−217	83	$0
ACN	Accenture plc	−157	66,091	$20,297,207
AXP	American Express Co	−155	131,566	$19,628,331
TGT	Target Corp	−134	1,443	$159,552
ABT	Abbott Laboratories	−131	3,272	$316,893
LLY	ELI LILLY & Co	−115	53,922	$28,963,123
MSFT	Microsoft Corp	−108	98,782	$31,190,416
No positions match the current search.

New Positions

Positions the filer opened this quarter

20 positions

Ticker	Company	Shares	Value
DVY	iShares Select Dividend ETF	1,766	$190,092
DGRO	iShares Core Dividend Growth ETF	2,333	$115,553
HD	Home Depot, Inc.	283	$85,511
RWR	State Street(R) SPDR(R) Dow Jones(R) REIT ETF	200	$16,588
NVS	Novartis AG	133	$13,547
KLAC	Kla Corp	25	$11,466
RCL	Royal Caribbean Cruises Ltd	100	$9,214
TSCO	Tractor Supply Co	33	$6,700
FTRE	Fortrea Holdings Inc.	127	$3,630
ULTA	Ulta Beauty, Inc.	8	$3,195
ARES	Ares Management Corp	30	$3,086
UPS	United Parcel Service Inc	6	$935
CMS	Cms Energy Corp	50	$3
GPC	Genuine Parts Co	24	$3
PRU	Prudential Financial Inc	18	$2
PNC	Pnc Financial Services Group, Inc.	11	$1
USB	US Bancorp De	22	$1
OMC	Omnicom Group Inc.	15	$1
CTVA	Corteva, Inc.	23	$1
O	Realty Income Corp	25	$1
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
VTHR	VANGUARD RUSSELL 3000 INDEX FUND	1,252	$247,207
VTWO	VANGUARD RUSSELL 2000 INDEX FUND	2,553	$193,057
L	Loews Corp	2,001	$118,819
TRP	Tc Energy Corp	486	$19,639
RITM	Rithm Capital Corp.	1,950	$18,232
MKSI	Mks Inc	101	$10,918
BC	Brunswick Corp	120	$10,396
RBC	RBC Bearings INC	47	$10,221
INSP	Inspire Medical Systems, Inc.	31	$10,063
CNMD	CONMED Corp	72	$9,784
NTRA	Natera, Inc.	181	$8,807
WING	Wingstop Inc.	42	$8,406
LCII	Lci Industries	66	$8,339
FNF	Fidelity National Financial, Inc.	213	$7,667
EWBC	East West Bancorp Inc	145	$7,654
TECH	BIO-TECHNE Corp	85	$6,938
GWRE	Guidewire Software, Inc.	89	$6,771
ATRC	AtriCure, Inc.	137	$6,762
AVY	Avery Dennison Corp	39	$6,700
RGEN	Repligen Corp	46	$6,507
APPF	Appfolio Inc	37	$6,369
BRKR	Bruker Corp	82	$6,061
PODD	Insulet Corp	19	$5,478
XRAY	DENTSPLY SIRONA Inc.	136	$5,442
QDEL	QuidelOrtho Corp	65	$5,385
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

326 tracked positions · $824,771,533 total · filing declares 335 positions · $826,825 · as of Sep 30, 2023

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 326 positions by value · page 1 of 7

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	Held (qtrs)	Est. cost/share	% of Portfolio
SPY	Spdr S&P 500 ETF Trust	Added	426,018	+703	$182,114,174	−3.4%	15+	before history	22.08%
JPST	JPMorgan Ultra-Short Income ETF	Added	1,757,225	+47,768	$88,177,550	+2.9%	6	$50.17	10.69%
ICSH	iShares Ultra Short Duration Bond Active ETF	Added	690,100	+6,185	$34,767,238	+1.1%	6	$50.09	4.22%
AMZN	Amazon Com Inc Consumer Cyclical	Reduced	259,949	-3,646	$33,044,716	−3.8%	15+	before history	4.01%
MSFT	Microsoft Corp Technology	Reduced	98,782	-108	$31,190,416	−7.4%	15+	before history	3.78%
LLY	ELI LILLY & Co Healthcare	Reduced	53,922	-115	$28,963,123	+14.3%	15+	before history	3.51%
COST	Costco Wholesale Corp Consumer Defensive	Reduced	46,424	-231	$26,227,703	+4.4%	15+	before history	3.18%
APH	Amphenol Corp Technology	Reduced	290,996	-765	$24,440,754	−1.4%	15+	before history	2.96%
PWR	Quanta Services, Inc. Industrials	Reduced	122,963	-317	$23,002,688	−5.0%	5	$138.42	2.79%
TMO	Thermo Fisher Scientific Inc. Healthcare	Reduced	42,640	-18	$21,583,088	−3.0%	15+	before history	2.62%
JPM	Jpmorgan Chase & Co Financial Services	Added	147,344	+354	$21,367,826	−0.0%	15+	before history	2.59%
BRK-B	Berkshire Hathaway Inc Financial Services	Reduced	60,605	-526	$21,229,931	+1.8%	15+	before history	2.57%
VRTX	Vertex Pharmaceuticals Inc Healthcare	Added	59,357	+42	$20,640,803	−1.1%	5	$292.17	2.50%
XLI	State Street(R) Industrial Select Sector SPDR(R) ETF	Added	202,080	+267	$20,486,870	−5.4%	12	unpriced	2.48%
ACN	Accenture plc Technology	Reduced	66,091	-157	$20,297,207	−0.7%	15+	before history	2.46%
AXP	American Express Co Financial Services	Reduced	131,566	-155	$19,628,331	−14.5%	15+	before history	2.38%
PLD	Prologis, Inc. Real Estate	Added	160,640	+556	$18,025,414	−8.2%	15+	before history	2.19%
XLV	State Street(R) Health Care Select Sector SPDR(R) ETF	Added	136,034	+688	$17,513,017	−2.5%	5	unpriced	2.12%
WM	Waste Management Inc Industrials	Added	111,521	+426	$17,000,261	−11.8%	5	$163.52	2.06%
LOW	Lowes Companies Inc Consumer Cyclical	Reduced	74,980	-48	$15,583,843	−8.0%	14	$126.77	1.89%
NOC	Northrop Grumman Corp Industrials	Added	33,407	+9	$14,705,427	−3.4%	5	$485.43	1.78%
AAPL	Apple Inc. Technology	Reduced	84,619	-1,100	$14,487,618	−12.9%	15+	before history	1.76%
XLF	State Street Corp Financial Services	Added	419,217	+1,287	$13,905,427	−1.3%	12	$28.02	1.69%
IEFA	iShares Core MSCI EAFE ETF	Reduced	209,000	-5,359	$13,449,150	−7.1%	15+	before history	1.63%
VTI	VANGUARD TOTAL STOCK MARKET INDEX FUND	Reduced	60,235	-1,271	$12,794,516	−5.6%	15+	before history	1.55%
GOOG	Alphabet Inc. Communication Services	Held	36,930	0	$4,869,220	+9.0%	15+	before history	0.59%
PG	PROCTER & GAMBLE Co Consumer Defensive	Reduced	32,844	-254	$4,790,625	−4.6%	15+	before history	0.58%
XLK	State Street(R) Technology Select Sector SPDR(R) ETF	Reduced	27,957	-78	$4,582,991	−6.0%	15+	before history	0.56%
		Held	111,153	0	$3,860,343	−4.0%	15+	before history	0.47%
IWF	iShares Russell 1000 Growth ETF	Reduced	13,067	-229	$3,475,691	−5.0%	15+	before history	0.42%
GOOGL	Alphabet Inc. Communication Services	Held	25,614	0	$3,351,848	+9.3%	15+	before history	0.41%
BRK-A	Berkshire Hathaway Inc Financial Services	Held	5	0	$2,657,385	+2.6%	15+	before history	0.32%
VOO	VANGUARD 500 INDEX FUND	Reduced	6,056	-949	$2,378,191	−16.6%	15+	before history	0.29%
IWD	iShares Russell 1000 Value ETF	Held	13,348	0	$2,026,493	−3.8%	15+	before history	0.25%
PEP	Pepsico Inc Consumer Defensive	Added	11,104	+585	$1,881,461	−3.4%	15+	before history	0.23%
IVV	iShares Core S&P 500 ETF	Added	3,967	+1,270	$1,703,548	+41.7%	15+	before history	0.21%
SDG	iShares MSCI Global Sustainable Development Goals ETF	Held	21,299	0	$1,587,201	−5.7%	15+	before history	0.19%
RSP	Victory Portfolios II	Added	9,845	+3,850	$1,394,938	+55.5%	3	$147.58	0.17%
IJR	iShares Core S&P Small-Cap ETF	Held	9,727	0	$917,547	−5.3%	12	unpriced	0.11%
MRK	Merck & Co., Inc. Healthcare	Added	8,836	+750	$909,666	−2.5%	15+	before history	0.11%
MCD	Mcdonalds Corp Consumer Cyclical	Held	3,392	0	$893,588	−11.7%	15+	before history	0.11%
KO	Coca Cola Co Consumer Defensive	Held	15,764	0	$882,468	−7.0%	15+	before history	0.11%
PHYS	Sprott Physical Gold Trust Financial Services	Held	60,329	0	$863,911	−4.0%	15+	before history	0.10%
XOM	ExxonMobil Holdings Corp Energy	Added	7,209	+1,136	$847,634	+30.1%	15+	before history	0.10%
IWR	iShares Russell Mid-Cap ETF	Held	10,915	0	$755,863	−5.2%	15+	before history	0.09%
JNJ	Johnson & Johnson Healthcare	Added	4,652	+733	$724,549	+11.7%	15+	before history	0.09%
CSCO	Cisco Systems, Inc. Technology	Held	12,685	0	$681,945	+3.9%	3	$48.88	0.08%
IVW	iShares S&P 500 Growth ETF	Held	9,953	0	$680,984	−2.9%	15+	before history	0.08%
DIS	Walt Disney Co Communication Services	Added	7,895	+195	$639,889	−6.9%	3	$100.33	0.08%
WMT	Walmart Inc. Consumer Defensive	Held	3,950	0	$631,723	+1.7%	15+	before history	0.08%

Showing the top 50 of 326 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.