Boston Common Asset Management, LLC

CIK

1409427

Location

BOSTON, MA

Portfolio Value

Mid $1,301,826,972

Diversification

Diversified

Filing Date

Global Rank

#1,522 / 8,605 ▼ 27 · as of Mar 2026

Top Industry

Semiconductors 17.3%

3Y Alpha vs SPY

-3.3%

Period ended 3 months ago

Filed May 7, 2026 · 2mo

25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+64.4%

SPY

+76.5%

Annualised alpha

-2.8%

Max drawdown

−18.4%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

118 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

7.5%

+0.2 pts

Top 5

24.7%

−1.6 pts

Top 10

36.4%

−2.1 pts

HHI

224

Diversified−11

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Technology	31.9%	$415,870,526	21
Financial Services	17.0%	$221,269,937	27
Healthcare	11.9%	$155,343,205	15
Communication Services	11.0%	$143,345,025	8
Industrials	10.9%	$142,450,231	17
Consumer Cyclical	5.6%	$73,541,866	11
Consumer Defensive	4.7%	$61,212,646	5
Basic Materials	3.8%	$49,814,072	5
Real Estate	1.5%	$19,652,591	3
Utilities	1.4%	$18,386,212	3
Unclassified	0.1%	$940,661	3

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
HASI	HA Sustainable Infrastructure Capital, Inc.	+117,855	319,770	$11,751,547
CYATY	Contemporary Amperex Technology Co., Limited/ADR	+56,733	265,954	$5,327,058
TCOM	Trip.com Group Ltd	+35,970	235,273	$11,714,242
SONY	Sony Group Corp	+30,979	321,630	$6,657,741
SFM	Sprouts Farmers Market, Inc.	+30,835	80,634	$6,219,300
AMAT	Applied Materials Inc /De	+26,945	46,362	$15,846,067
SPOT	Spotify Technology S.A.	+20,516	52,596	$25,504,326
VZ	Verizon Communications Inc	+20,308	316,689	$15,897,787
CL	Colgate Palmolive Co	+16,502	250,152	$21,320,454
PG	PROCTER & GAMBLE Co	+14,203	80,800	$11,670,752
DGX	Quest Diagnostics Inc	+13,037	90,326	$17,702,089
SQM	Chemical & Mining Co Of Chile Inc	+10,800	61,518	$4,979,266
XYL	Xylem Inc.	+10,119	145,639	$17,403,860
BNY	Bank of New York Mellon Corp	+6,779	109,472	$12,986,663
EW	Edwards Lifesciences Corp	+6,744	156,297	$12,516,263
SAP	Sap SE	+5,960	51,041	$8,738,729
NFLX	Netflix Inc	+5,519	352,081	$33,852,588
AWK	American Water Works Company, Inc.	+5,185	127,660	$17,373,249
PANW	Palo Alto Networks Inc	+4,618	47,194	$7,566,142
SKM	Sk Telecom Co Ltd	+4,300	126,681	$3,710,486
CBRE	Cbre Group, Inc.	+2,860	98,277	$13,312,602
INFY	Infosys Ltd	+2,300	208,639	$2,818,712
AVGO	Broadcom Inc.	+1,600	123,544	$38,238,103
TT	Trane Technologies plc	+1,490	19,467	$8,112,677
VRTX	Vertex Pharmaceuticals Inc / Ma	+1,124	17,205	$7,682,720
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
ITUB	Itau Unibanco Holding S.A.	−47,793	1,052,191	$8,817,360
CRH	Crh Public Ltd Co	−45,042	170,491	$17,922,013
TSM	Taiwan Semiconductor Manufacturing Co Ltd	−44,251	287,638	$97,207,262
AZN	Astrazeneca PLC	−42,464	40,960	$8,078,131
VRT	Vertiv Holdings Co	−26,806	99,730	$24,990,343
MUFG	Mitsubishi Ufj Financial Group Inc	−26,339	566,845	$9,619,359
INTU	Intuit Inc.	−21,541	1,288	$556,905
ING	Ing Groep NV	−16,238	244,179	$6,360,862
MS	Morgan Stanley	−14,650	159,949	$26,322,806
MET	Metlife Inc	−13,810	109,516	$7,744,971
DTEGY	Deutsche Telekom AG	−13,152	162,538	$6,026,909
AAPL	Apple Inc.	−11,440	239,514	$60,786,258
BAC	Bank Of America Corp /De/	−11,299	240,092	$11,704,485
ACN	Accenture plc	−10,840	3,604	$714,637
MMYT	MakeMyTrip Ltd	−9,582	22,210	$828,210
NVDA	Nvidia Corp	−8,385	401,697	$70,055,956
GOOGL	Alphabet Inc.	−7,873	140,765	$40,478,383
FITB	Fifth Third Bancorp	−7,796	213,439	$9,916,375
GILD	Gilead Sciences, Inc.	−7,238	77,243	$10,765,356
UL	Unilever PLC	−7,068	163,605	$9,320,576
STT	State Street Corp	−5,712	30,757	$3,892,605
HDB	Hdfc Bank Ltd	−5,600	665,080	$16,547,190
NVS	Novartis AG	−5,150	108,116	$16,514,719
TJX	Tjx Companies Inc /De/	−4,626	112,746	$18,005,536
MRK	Merck & Co., Inc.	−4,527	198,680	$23,899,217
No positions match the current search.

New Positions

Positions the filer opened this quarter

8 positions

Ticker	Company	Shares	Value
EBAY	Ebay Inc	82,401	$7,500,139
ASML	Asml Holding NV	3,297	$4,354,776
ATEYY	Advantest Corp	31,800	$4,318,758
LIN	Linde PLC	7,094	$3,516,921
BBVA	Banco Bilbao Vizcaya Argentaria, S.A.	158,827	$3,440,192
ARGX	Argenx SE	3,753	$2,740,628
CFG	Citizens Financial Group Inc/Ri	45,677	$2,739,249
LSEGY	London Stock Exchange Group plc	56,781	$1,693,777
No positions match the current search.

Sold Out

Positions the filer fully exited

9 positions

Ticker	Company	Shares	Value
BLD	QXO Insulation, LLC	22,213	$9,267,041
WY	Weyerhaeuser Co	200,353	$4,746,362
NVO	Novo Nordisk A S	61,958	$3,152,423
TFC	Truist Financial Corp	63,343	$3,117,109
RELX	Relx PLC	75,966	$3,070,545
CCI	Crown Castle Inc.	24,832	$2,206,819
MICC	Magnum Ice Cream Co N.V.	38,924	$616,945
BRK-B	Berkshire Hathaway Inc	900	$452,385
QQQ	Invesco Qqq Trust, Series 1	459	$281,968
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

118 positions · $1,301,826,972 total · as of Mar 31, 2026

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

Showing 1–50 of 118 positions by value · page 1 of 3

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
TSM	Taiwan Semiconductor Manufacturing Co Ltd Technology	Reduced	287,638	-44,251	$97,207,262	−3.6%	7.47%
NVDA	Nvidia Corp Technology	Reduced	401,697	-8,385	$70,055,956	−8.4%	5.38%
AAPL	Apple Inc. Technology	Reduced	239,514	-11,440	$60,786,258	−10.9%	4.67%
MSFT	Microsoft Corp Technology	Reduced	143,573	-1,642	$53,146,417	−24.3%	4.08%
GOOGL	Alphabet Inc. Communication Services	Reduced	140,765	-7,873	$40,478,383	−13.0%	3.11%
AVGO	Broadcom Inc. Technology	Added	123,544	+1,600	$38,238,103	−9.4%	2.94%
NFLX	Netflix Inc Communication Services	Added	352,081	+5,519	$33,852,588	+4.2%	2.60%
V	Visa Inc. Financial Services	Reduced	95,289	-3,212	$28,800,147	−16.6%	2.21%
MS	Morgan Stanley Financial Services	Reduced	159,949	-14,650	$26,322,806	−15.1%	2.02%
SPOT	Spotify Technology S.A. Communication Services	Added	52,596	+20,516	$25,504,326	+36.9%	1.96%
VRT	Vertiv Holdings Co Industrials	Reduced	99,730	-26,806	$24,990,343	+21.9%	1.92%
MRK	Merck & Co., Inc. Healthcare	Reduced	198,680	-4,527	$23,899,217	+11.7%	1.84%
LLY	ELI LILLY & Co Healthcare	Reduced	24,353	-2,875	$22,399,158	−23.5%	1.72%
CL	Colgate Palmolive Co Consumer Defensive	Added	250,152	+16,502	$21,320,454	+15.5%	1.64%
HUBB	Hubbell Inc Industrials	Reduced	40,763	-848	$20,004,034	+8.2%	1.54%
WAB	Westinghouse Air Brake Technologies Corp Industrials	Reduced	74,048	-1,485	$18,505,335	+14.8%	1.42%
TJX	Tjx Companies Inc /De/ Consumer Cyclical	Reduced	112,746	-4,626	$18,005,536	−0.1%	1.38%
CRH	Crh Public Ltd Co Basic Materials	Reduced	170,491	-45,042	$17,922,013	−33.4%	1.38%
DGX	Quest Diagnostics Inc Healthcare	Added	90,326	+13,037	$17,702,089	+32.0%	1.36%
TMUS	T-Mobile US, Inc. Communication Services	Added	83,537	+879	$17,545,276	+4.5%	1.35%
XYL	Xylem Inc. Industrials	Added	145,639	+10,119	$17,403,860	−5.7%	1.34%
AWK	American Water Works Company, Inc. Utilities	Added	127,660	+5,185	$17,373,249	+8.7%	1.33%
CB	Chubb Ltd Financial Services	Reduced	51,027	-273	$16,631,230	+3.9%	1.28%
HDB	Hdfc Bank Ltd Financial Services	Reduced	665,080	-5,600	$16,547,190	−32.5%	1.27%
NVS	Novartis AG Healthcare	Reduced	108,116	-5,150	$16,514,719	+5.8%	1.27%
VZ	Verizon Communications Inc Communication Services	Added	316,689	+20,308	$15,897,787	+31.7%	1.22%
AMAT	Applied Materials Inc /De Technology	Added	46,362	+26,945	$15,846,067	+217.6%	1.22%
ECL	Ecolab Inc. Basic Materials	Reduced	52,301	-1,126	$13,913,112	−0.8%	1.07%
CRM	Salesforce, Inc. Technology	Reduced	73,976	-106	$13,809,099	−29.6%	1.06%
DHR	Danaher Corp /De/ Healthcare	Reduced	70,980	-1,322	$13,457,808	−18.7%	1.03%
CBRE	Cbre Group, Inc. Real Estate	Added	98,277	+2,860	$13,312,602	−13.2%	1.02%
ADI	Analog Devices Inc Technology	Reduced	41,525	-3,162	$13,210,763	+9.0%	1.01%
BNY	Bank of New York Mellon Corp Financial Services	Added	109,472	+6,779	$12,986,663	+8.9%	1.00%
COST	Costco Wholesale Corp /New Consumer Defensive	Reduced	12,727	-528	$12,681,564	+10.9%	0.97%
EW	Edwards Lifesciences Corp Healthcare	Added	156,297	+6,744	$12,516,263	−1.8%	0.96%
HASI	HA Sustainable Infrastructure Capital, Inc. Financial Services	Added	319,770	+117,855	$11,751,547	+85.2%	0.90%
TCOM	Trip.com Group Ltd Consumer Cyclical	Added	235,273	+35,970	$11,714,242	−18.3%	0.90%
BAC	Bank Of America Corp /De/ Financial Services	Reduced	240,092	-11,299	$11,704,485	−15.3%	0.90%
CME	Cme Group Inc. Financial Services	Reduced	39,517	-1,270	$11,671,345	+4.8%	0.90%
PG	PROCTER & GAMBLE Co Consumer Defensive	Added	80,800	+14,203	$11,670,752	+22.3%	0.90%
WM	Waste Management Inc Industrials	Reduced	49,504	-1,348	$11,375,524	+1.8%	0.87%
GILD	Gilead Sciences, Inc. Healthcare	Reduced	77,243	-7,238	$10,765,356	+3.8%	0.83%
AMGN	Amgen Inc Healthcare	Reduced	29,640	-3,458	$10,428,834	−3.7%	0.80%
EMR	Emerson Electric Co Industrials	Reduced	76,719	-2,906	$10,051,723	−4.9%	0.77%
RL	Ralph Lauren Corp Consumer Cyclical	Reduced	29,187	-1,384	$10,040,036	−7.1%	0.77%
CMI	Cummins Inc Industrials	Reduced	18,498	-3,493	$9,952,293	−11.3%	0.76%
FITB	Fifth Third Bancorp Financial Services	Reduced	213,439	-7,796	$9,916,375	−4.2%	0.76%
MUFG	Mitsubishi Ufj Financial Group Inc Financial Services	Reduced	566,845	-26,339	$9,619,359	+2.2%	0.74%
STLD	Steel Dynamics Inc Basic Materials	Reduced	52,682	-4,029	$9,482,760	−1.3%	0.73%
UL	Unilever PLC Consumer Defensive	Reduced	163,605	-7,068	$9,320,576	−16.5%	0.72%