Institutional Manager · CIK 0001100710
HARBOR ADVISORY CORP /MA/
PORTSMOUTH, NH · File #028-05259
Latest AUM
$330.6M
Positions
78
Top-10 Concentration
45.7%
Filings
12
Sector Allocation
Filing History
View all filings →- 13F HOLDINGS REPORTQ/E Dec 202578 pos · $330.6M
- 13F HOLDINGS REPORTQ/E Sep 202580 pos · $338.2M
- 13F HOLDINGS REPORTQ/E Jun 202581 pos · $313.8M
- 13F HOLDINGS REPORTQ/E Mar 202583 pos · $297.9M
- 13F HOLDINGS REPORTQ/E Dec 202486 pos · $304.4M
- 13F HOLDINGS REPORTQ/E Sep 202490 pos · $306.4M
- 13F HOLDINGS REPORTQ/E Jun 202484 pos · $289.5M
- 13F HOLDINGS REPORTQ/E Mar 202486 pos · $293.8M
- 13F HOLDINGS REPORTQ/E Dec 202386 pos · $275.9M
- 13F HOLDINGS REPORTQ/E Sep 202384 pos · $283.3M
- 13F HOLDINGS REPORTQ/E Jun 202379 pos · $261.9M
- 13F HOLDINGS REPORTQ/E Mar 202377 pos · $244.8M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | VANGUARD INDEX FDS | 922908363 | 34,465 | $21.6M | 6.84% |
| 2 | ALPHABET INC | GOOG | 63,147 | $19.8M | 6.26% |
| 3 | FIRST TR EXCHANGE-TRADED FD | 33738D309 | 326,213 | $15.0M | 4.74% |
| 4 | AMAZON COM INC | AMZN | 64,015 | $14.8M | 4.68% |
| 5 | VANGUARD INTL EQUITY INDEX F | 922042874 | 170,781 | $14.3M | 4.52% |
| 6 | VANGUARD INTL EQUITY INDEX F | 922042858 | 233,793 | $12.6M | 3.98% |
| 7 | APPLE INC | AAPL | 44,037 | $12.0M | 3.79% |
| 8 | BERKSHIRE HATHAWAY INC DEL | BRK-A | 23,777 | $12.0M | 3.78% |
| 9 | VANGUARD INDEX FDS | 922908751 | 44,096 | $11.4M | 3.60% |
| 10 | ISHARES TR | 464287200 | 16,218 | $11.1M | 3.52% |
| 11 | ISHARES TR | 464287523 | 34,345 | $10.3M | 3.27% |
| 12 | VANGUARD INDEX FDS | 922908629 | 35,147 | $10.2M | 3.23% |
| 13 | ISHARES TR | 464287804 | 78,704 | $9.5M | 2.99% |
| 14 | ISHARES TR | 464287507 | 143,021 | $9.4M | 2.99% |
| 15 | BROOKFIELD INFRAST PARTNERS | G16252101 | 250,071 | $8.7M | 2.75% |
| 16 | JPMORGAN CHASE & CO. | VYLD | 25,861 | $8.3M | 2.64% |
| 17 | MICROSOFT CORP | MSFT | 16,351 | $7.9M | 2.50% |
| 18 | ISHARES INC | 464286475 | 111,673 | $7.5M | 2.39% |
| 19 | SPDR SERIES TRUST | 78468R200 | 235,000 | $7.2M | 2.29% |
| 20 | JOHNSON & JOHNSON | JNJ | 32,490 | $6.7M | 2.13% |