Filed: 4/15/2026ACC: 0001754960-26-000256
📋 What this filing means
HINGHAM INSTITUTION FOR SAVINGS filed this quarterly 13F‑HR report disclosing 15 equity positions with a total reported market value of $113.16M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
15
Positions
$113.16M
Total AUM (reported)
713.17K
Total Shares
Allocation by class
CAP STK CL A$34.35M30.4%
CL A$25.62M22.6%
CL B NEW$19.86M17.6%
COM CL A$19.69M17.4%
COM$12.30M10.9%
SHS$1.34M1.2%
Portfolio Concentration
Top 3$73.90M65.3%
4–10$33.80M29.9%
11–25$5.46M4.8%
Top 3 weight
65.3%
Top 10 weight
95.2%
Voting Authority Distribution
Total shares with voting rights: 713.17K
Sole
Full voting authority
713.17K
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole15
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings15
Rows:
ALPHABET INC
SOLEShares119.45K
TypeSH
Market value$34.35M
30.35%
Sole
119.45K
Shared
0.00
None
0.00
BERKSHIRE HATHAWAY INC DEL
SOLEShares41.45K
TypeSH
Market value$19.86M
17.55%
Sole
41.45K
Shared
0.00
None
0.00
VISA INC
SOLEShares65.15K
TypeSH
Market value$19.69M
17.40%
Sole
65.15K
Shared
0.00
None
0.00
CHAIN BRIDGE BANCORP INC
SOLEShares308.61K
TypeSH
Market value$10.77M
9.52%
Sole
308.61K
Shared
0.00
None
0.00
MASTERCARD INCORPORATED
SOLEShares18.10K
TypeSH
Market value$9.04M
7.99%
Sole
18.10K
Shared
0.00
None
0.00
S&P GLOBAL INC
SOLEShares12K
TypeSH
Market value$5.10M
4.51%
Sole
12K
Shared
0.00
None
0.00
HEICO CORP NEW
SOLEShares16.50K
TypeSH
Market value$3.48M
3.08%
Sole
16.50K
Shared
0.00
None
0.00
RLI CORP
SOLEShares35K
TypeSH
Market value$2.00M
1.76%
Sole
35K
Shared
0.00
None
0.00
MOODYS CORP
SOLEShares4.50K
TypeSH
Market value$1.96M
1.73%
Sole
4.50K
Shared
0.00
None
0.00
BERKSHIRE HATHAWAY INC DEL
SOLEShares2.00
TypeSH
Market value$1.44M
1.27%
Sole
2.00
Shared
0.00
None
0.00
KINSALE CAP GROUP INC
SOLEShares4K
TypeSH
Market value$1.37M
1.21%
Sole
4K
Shared
0.00
None
0.00
INTL GNRL INSURANCE HLDNGS L
SOLEShares55.40K
TypeSH
Market value$1.34M
1.19%
Sole
55.40K
Shared
0.00
None
0.00
PROGRESSIVE CORP
SOLEShares6.50K
TypeSH
Market value$1.29M
1.14%
Sole
6.50K
Shared
0.00
None
0.00
AMPHENOL CORP
SOLEShares7K
TypeSH
Market value$884.5K
0.78%
Sole
7K
Shared
0.00
None
0.00
CAPITAL BANCORP INC MD
SOLEShares19.50K
TypeSH
Market value$580.0K
0.51%
Sole
19.50K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
ALPHABET INCSOLE | CAP STK CL A | 119.45K | SH | $34.35M 30.35% | 119.45K | 0.00 | 0.00 |
BERKSHIRE HATHAWAY INC DELSOLE | CL B NEW | 41.45K | SH | $19.86M 17.55% | 41.45K | 0.00 | 0.00 |
VISA INCSOLE | COM CL A | 65.15K | SH | $19.69M 17.40% | 65.15K | 0.00 | 0.00 |
CHAIN BRIDGE BANCORP INCSOLE | CL A | 308.61K | SH | $10.77M 9.52% | 308.61K | 0.00 | 0.00 |
MASTERCARD INCORPORATEDSOLE | CL A | 18.10K | SH | $9.04M 7.99% | 18.10K | 0.00 | 0.00 |
S&P GLOBAL INCSOLE | COM | 12K | SH | $5.10M 4.51% | 12K | 0.00 | 0.00 |
HEICO CORP NEWSOLE | CL A | 16.50K | SH | $3.48M 3.08% | 16.50K | 0.00 | 0.00 |
RLI CORPSOLE | COM | 35K | SH | $2.00M 1.76% | 35K | 0.00 | 0.00 |
MOODYS CORPSOLE | COM | 4.50K | SH | $1.96M 1.73% | 4.50K | 0.00 | 0.00 |
BERKSHIRE HATHAWAY INC DELSOLE | CL A | 2.00 | SH | $1.44M 1.27% | 2.00 | 0.00 | 0.00 |
KINSALE CAP GROUP INCSOLE | COM | 4K | SH | $1.37M 1.21% | 4K | 0.00 | 0.00 |
INTL GNRL INSURANCE HLDNGS LSOLE | SHS | 55.40K | SH | $1.34M 1.19% | 55.40K | 0.00 | 0.00 |
PROGRESSIVE CORPSOLE | COM | 6.50K | SH | $1.29M 1.14% | 6.50K | 0.00 | 0.00 |
AMPHENOL CORPSOLE | CL A | 7K | SH | $884.5K 0.78% | 7K | 0.00 | 0.00 |
CAPITAL BANCORP INC MDSOLE | COM | 19.50K | SH | $580.0K 0.51% | 19.50K | 0.00 | 0.00 |