ST GERMAIN D J CO INC
SEC Form 13F institutional filer · CIK 0000831571
13F-HR · 371 reported holdings · 2026-03-31
SEC-registered institutional investment manager.
Reported long-US-equity value
$1.60B
Top-10 concentration
40.6%
ST GERMAIN D J CO INC — $1.6B AUM allocation strategy
ST GERMAIN D J CO INC files SEC Form 13F and reports $1.6B of long US equity value across 371 reported holdings for 2026-03-31.
Its largest sector bet is Communication Services 12.8%, followed by Information Technology 11.6% and Financials 10.6%.
The top 10 holdings account for 41% of reported value — a broadly spread portfolio. 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.
ST GERMAIN D J CO INC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$1.6B
total across 371 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
41% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$SPYM +166K sh · +$9.11M+$ZBH +43.4K sh · +$3.99M+$SPGI +29.5K sh · +$1.83M
Biggest trims (shares)
−$IYY −58.6K sh · −$3.37M−$GLW −46.4K sh · +$579K−$CSCO −39.3K sh · −$2.89M
Exited to nil (held last quarter, gone now)
$EXPE ($198K last qtr)$INCY ($175K last qtr)$FTNT ($175K last qtr)$NTAP ($172K last qtr)$LVS ($167K last qtr)
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 & Services10.5%—
- Technology Hardware, Storage & Peripherals7.3%—
- Diversified Banks5.1%—
- Multi-Sector Holdings3.4%—
- Oil & Gas Equipment & Services2.6%—
- Semiconductors2.5%—
- Personal Care Products2.4%—
- Pharmaceuticals2.3%—
- Other holdings63.9%—
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
8 of 8 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $AAPL | Apple Inc | 458K | $116M | -6.12K | 7.3% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 398K | $114M | -12.3K | 7.2% |
| $BRK.B | Berkshire Hathaway Inc.-Class B | 114K | $54.6M | -1.38K | 3.4% |
| $META | Meta Platforms Inc | 94.8K | $54.2M | -102 | 3.4% |
| $JPM | JP Morgan Chase & Co | 184K | $54.2M | -4.45K | 3.4% |
| $SLB | SLB Limited | 813K | $41.8M | -5.13K | 2.6% |
| $NVDA | NVIDIA Corporation | 228K | $39.7M | +7.09K | 2.5% |
| $PG | Procter & Gamble Company | 264K | $38.2M | +1.24K | 2.4% |
…and 363 more holdings in the full 13F filing (top positions only shown).
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
← All 13F filers·← QuantOrb.pro
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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