Hingham Institution for Savings
SEC Form 13F institutional filer · CIK 0002044671
13F-HR · 9 reported holdings · 2026-03-31
Reported long-US-equity value
$0.09B
Top-10 concentration
100.0%
Hingham Institution for Savings — $93.6M AUM allocation strategy
Hingham Institution for Savings files SEC Form 13F and reports $93.6M of long US equity value across 9 reported holdings for 2026-03-31.
Its largest sector bet is Financials 60.8%, followed by Communication Services 36.7% and Industrials 1.5%.
The top 10 holdings account for 100% of reported value — a conviction-weighted book concentrated in its best ideas. The sector and industry splits below are of the same reported value. Track quarter-over-quarter adds, trims, new positions and exits below — sourced from SEC 13F filings, public domain.
Hingham Institution for Savings — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$93.6M
total across 9 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
100% of value
higher = narrower conviction; lower = spread / hedging
Exited to nil (held last quarter, gone now)
None this quarter
Sector allocation (share of reported value)
each slice is a share of the reported long-US-equity value — smaller sectors and the rest of the book roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Industry allocation (share of reported value)
- Interactive Media & Services36.7%—
- Transaction & Payment Processing Services30.7%—
- Multi-Sector Holdings21.2%—
- Financial Exchanges & Data7.5%—
- Aerospace & Defense1.5%—
- Property & Casualty Insurance1.4%—
- Electronic Components0.9%—
- Other holdings0.1%—
the finer GICS cut of the same book — same denominator — smaller industries roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Top S&P 500 holdings
9 of 9 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $GOOG | Alphabet Inc. Class C Capital Stock | 119K | $34.3M | -29.5K | 36.7% |
| $BRK.B | Berkshire Hathaway Inc.-Class B | 41.5K | $19.9M | +0 | 21.2% |
| $V | Visa Inc | 65.2K | $19.7M | +6K | 21.0% |
| $MA | Mastercard Incorporated | 18.1K | $9.04M | +1.2K | 9.7% |
| $SPGI | S&P Global Inc | 12K | $5.1M | +2.5K | 5.5% |
| $MCO | Moody's Corporation | 4.5K | $1.96M | +2K | 2.1% |
| $HONA | Honeywell Aerospace Inc | 2 | $1.44M | +0 | 1.5% |
| $PGR | Progressive Corporation | 6.5K | $1.29M | +0 | 1.4% |
| $APH | Amphenol Corporation | 7K | $884K | — | 0.9% |
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
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How to read Δ QoQ — the five insight categories, and the caveats
The categories. Analysts, quants and retail traders look past total portfolio value to isolate actionable signals. Five categories matter.
Conviction & concentration shifts
New positions vs complete exits — a brand-new stock signals high conviction; a full liquidation suggests a broken thesis or tax-loss harvesting. Aggressive sizing — look at share count, not dollars: a 20% share increase during a drawdown is strong dip-buying. Concentration — a narrowing top-5/10 means conviction; spreading capital across more names means hedging.
Sector & macro allocation rotations
Aggregating Δ QoQ moves across sectors shows where smart money is leaning in or sneaking out — rotating out of growth into defensives or energy, for example. The fund's total long equity exposure quarter-over-quarter is a proxy for overall institutional risk appetite.
Crowding & smart-money consensus
When several managers initiate or expand the same stock in the same quarter, that is institutional consensus. Contrarian reads: top pickers buying hard into a beaten-down name the market is selling.
Derivative & option overlays
Reported call/put changes indicate whether managers are adding downside hedges or leveraging upside exposure. Note: a long increase may be half of a market-neutral pair trade.
Who reads this
| Retail "cloners" | High-conviction ideas to replicate ~45 days after quarter-end. |
| Corporate IR | Which funds bought or dumped the stock, before the next call. |
| Quant / algo traders | Cross-sectional factor inputs: flow, momentum, ownership. |
Four caveats before you trade on it
- 45-day lag — holdings are quarter-end; positions may already be closed.
- Long-only — 13Fs miss shorts, pair trades and cash.
- No non-US / fixed income — the picture is US equities plus options.
- Corporate actions — splits and spinoffs distort raw share deltas.
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