HARBOR ADVISORY CORP /MA/

Filed: 5/7/2026ACC: 0001765380-26-000184

📋 What this filing means

HARBOR ADVISORY CORP /MA/ filed this quarterly 13F‑HR report disclosing 79 equity positions with a total reported market value of $332.77M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.

Positions

$332.77M

Total AUM (reported)

3.90M

Total Shares

Allocation by class

COM$85.82M25.8%

S&P 500 ETF SHS$19.40M5.8%

STATE STREET SPD$17.30M5.2%

CAP STK CL A$15.04M4.5%

SENIOR LN FD$14.43M4.3%

FTSE EUROPE ETF$14.19M4.3%

CORE S&P MCP ETF$13.77M4.1%

Portfolio Concentration

Top 3$48.87M14.7%

4–10$88.72M26.7%

11–25$114.50M34.4%

Rest$80.69M24.2%

Top 3 weight

14.7%

Top 10 weight

41.3%

Voting Authority Distribution

Total shares with voting rights: 3.90M

Sole

Full voting authority

0.00

% of voting shares0.0%

Shared

Joint voting authority

0.00

% of voting shares0.0%

None

No voting authority

3.90M

% of voting shares100.0%

Investment Discretion (by position count)

Sole79

Shared0

Other0

Dominant voting typeNone · 100.0% of voting shares

Institutional Holdings79

Rows:

VANGUARD INDEX FDS

SOLE

S&P 500 ETF SHS

Shares32.47K

TypeSH

Market value$19.40M

5.83%

Sole

0.00

Shared

0.00

None

32.47K

ALPHABET INC

SOLE

CAP STK CL A

Shares52.30K

TypeSH

Market value$15.04M

4.52%

Sole

0.00

Shared

0.00

None

52.30K

FIRST TR EXCHANGE-TRADED FD

SOLE

SENIOR LN FD

Shares322.01K

TypeSH

Market value$14.43M

4.34%

Sole

0.00

Shared

0.00

None

322.01K

VANGUARD INTL EQUITY INDEX F

SOLE

FTSE EUROPE ETF

Shares172.16K

TypeSH

Market value$14.19M

4.26%

Sole

0.00

Shared

0.00

None

172.16K

ISHARES TR

SOLE

CORE S&P MCP ETF

Shares203.87K

TypeSH

Market value$13.77M

4.14%

Sole

0.00

Shared

0.00

None

203.87K

VANGUARD INTL EQUITY INDEX F

SOLE

FTSE EMR MKT ETF

Shares239.54K

TypeSH

Market value$12.95M

3.89%

Sole

0.00

Shared

0.00

None

239.54K

AMAZON COM INC

SOLE

COM

Shares61.88K

TypeSH

Market value$12.89M

3.87%

Sole

0.00

Shared

0.00

None

61.88K

ISHARES TR

SOLE

CORE S&P SCP ETF

Shares98.49K

TypeSH

Market value$12.24M

3.68%

Sole

0.00

Shared

0.00

None

98.49K

J P MORGAN EXCHANGE TRADED F

SOLE

INCOME ETF

Shares262.62K

TypeSH

Market value$12.10M

3.64%

Sole

0.00

Shared

0.00

None

262.62K

BERKSHIRE HATHAWAY INC DEL

SOLE

CL B NEW

Shares22.10K

TypeSH

Market value$10.59M

3.18%

Sole

0.00

Shared

0.00

None

22.10K

APPLE INC

SOLE

COM

Shares40.54K

TypeSH

Market value$10.29M

3.09%

Sole

0.00

Shared

0.00

None

40.54K

ISHARES TR

SOLE

ISHARES SEMICDTR

Shares31.07K

TypeSH

Market value$10.21M

3.07%

Sole

0.00

Shared

0.00

None

31.07K

ISHARES TR

SOLE

CORE S&P500 ETF

Shares15.16K

TypeSH

Market value$9.90M

2.98%

Sole

0.00

Shared

0.00

None

15.16K

VANGUARD INDEX FDS

SOLE

SMALL CP ETF

Shares33.45K

TypeSH

Market value$8.76M

2.63%

Sole

0.00

Shared

0.00

None

33.45K

BROOKFIELD INFRASTRUCTURE PA

SOLE

LP INT UNIT

Shares236.61K

TypeSH

Market value$8.55M

2.57%

Sole

0.00

Shared

0.00

None

236.61K

MICROSOFT CORP

SOLE

COM

Shares22.02K

TypeSH

Market value$8.15M

2.45%

Sole

0.00

Shared

0.00

None

22.02K

ISHARES INC

SOLE

EM MKT SM-CP ETF

Shares113.56K

TypeSH

Market value$7.86M

2.36%

Sole

0.00

Shared

0.00

None

113.56K

CISCO SYS INC

SOLE

COM

Shares99.52K

TypeSH

Market value$7.72M

2.32%

Sole

0.00

Shared

0.00

None

99.52K

JOHNSON & JOHNSON

SOLE

COM

Shares29.67K

TypeSH

Market value$7.25M

2.18%

Sole

0.00

Shared

0.00

None

29.67K

VANGUARD INDEX FDS

SOLE

MID CAP ETF

Shares24.92K

TypeSH

Market value$7.16M

2.15%

Sole

0.00

Shared

0.00

None

24.92K

JPMORGAN CHASE & CO

SOLE

COM

Shares23.09K

TypeSH

Market value$6.79M

2.04%

Sole

0.00

Shared

0.00

None

23.09K

VANGUARD ADMIRAL FDS INC

SOLE

MIDCP 400 IDX

Shares49.45K

TypeSH

Market value$5.65M

1.70%

Sole

0.00

Shared

0.00

None

49.45K

SPDR SERIES TRUST

SOLE

STATE STREET SPD

Shares181.49K

TypeSH

Market value$5.59M

1.68%

Sole

0.00

Shared

0.00

None

181.49K

ISHARES TR

SOLE

IBDS DEC28 ETF

Shares215.28K

TypeSH

Market value$5.45M

1.64%

Sole

0.00

Shared

0.00

None

215.28K

ISHARES TR

SOLE

EAFE SML CP ETF

Shares65.81K

TypeSH

Market value$5.16M

1.55%

Sole

0.00

Shared

0.00

None

65.81K

Issuer	Class	Shares	Type	Value / Portfolio %	None
VANGUARD INDEX FDSSOLE	S&P 500 ETF SHS	32.47K	SH	$19.40M 5.83%	32.47K
ALPHABET INCSOLE	CAP STK CL A	52.30K	SH	$15.04M 4.52%	52.30K
FIRST TR EXCHANGE-TRADED FDSOLE	SENIOR LN FD	322.01K	SH	$14.43M 4.34%	322.01K
VANGUARD INTL EQUITY INDEX FSOLE	FTSE EUROPE ETF	172.16K	SH	$14.19M 4.26%	172.16K
ISHARES TRSOLE	CORE S&P MCP ETF	203.87K	SH	$13.77M 4.14%	203.87K
VANGUARD INTL EQUITY INDEX FSOLE	FTSE EMR MKT ETF	239.54K	SH	$12.95M 3.89%	239.54K
AMAZON COM INCSOLE	COM	61.88K	SH	$12.89M 3.87%	61.88K
ISHARES TRSOLE	CORE S&P SCP ETF	98.49K	SH	$12.24M 3.68%	98.49K
J P MORGAN EXCHANGE TRADED FSOLE	INCOME ETF	262.62K	SH	$12.10M 3.64%	262.62K
BERKSHIRE HATHAWAY INC DELSOLE	CL B NEW	22.10K	SH	$10.59M 3.18%	22.10K
APPLE INCSOLE	COM	40.54K	SH	$10.29M 3.09%	40.54K
ISHARES TRSOLE	ISHARES SEMICDTR	31.07K	SH	$10.21M 3.07%	31.07K
ISHARES TRSOLE	CORE S&P500 ETF	15.16K	SH	$9.90M 2.98%	15.16K
VANGUARD INDEX FDSSOLE	SMALL CP ETF	33.45K	SH	$8.76M 2.63%	33.45K
BROOKFIELD INFRASTRUCTURE PASOLE	LP INT UNIT	236.61K	SH	$8.55M 2.57%	236.61K
MICROSOFT CORPSOLE	COM	22.02K	SH	$8.15M 2.45%	22.02K
ISHARES INCSOLE	EM MKT SM-CP ETF	113.56K	SH	$7.86M 2.36%	113.56K
CISCO SYS INCSOLE	COM	99.52K	SH	$7.72M 2.32%	99.52K
JOHNSON & JOHNSONSOLE	COM	29.67K	SH	$7.25M 2.18%	29.67K
VANGUARD INDEX FDSSOLE	MID CAP ETF	24.92K	SH	$7.16M 2.15%	24.92K
JPMORGAN CHASE & COSOLE	COM	23.09K	SH	$6.79M 2.04%	23.09K
VANGUARD ADMIRAL FDS INCSOLE	MIDCP 400 IDX	49.45K	SH	$5.65M 1.70%	49.45K
SPDR SERIES TRUSTSOLE	STATE STREET SPD	181.49K	SH	$5.59M 1.68%	181.49K
ISHARES TRSOLE	IBDS DEC28 ETF	215.28K	SH	$5.45M 1.64%	215.28K
ISHARES TRSOLE	EAFE SML CP ETF	65.81K	SH	$5.16M 1.55%	65.81K

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