MONTRUSCO BOLTON INVESTMENTS INC.
SEC Form 13F institutional filer · CIK 0001475940
13F-HR · 25 reported holdings · 2026-03-31
Investment management firm.
Reported long-US-equity value
$5.16B
Top-10 concentration
64.8%
MONTRUSCO BOLTON INVESTMENTS INC. — $5.16B AUM allocation strategy
MONTRUSCO BOLTON INVESTMENTS INC. files SEC Form 13F and reports $5.16B of long US equity value across 25 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 32.4%, followed by Communication Services 12.2% and Health Care 12.1%.
The top 10 holdings account for 65% 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.
MONTRUSCO BOLTON INVESTMENTS INC. — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$5.16B
total across 25 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
65% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$AVGO +340K sh · +$89M+$JPM +241K sh · +$42.7M+$IDXX +165K sh · +$69.6M
Biggest trims (shares)
−$MNST −579K sh · −$56.6M−$CMG −531K sh · −$42.1M−$ZTS −502K sh · −$75.5M
Exited to nil (held last quarter, gone now)
$ROL ($108M last qtr)$ADBE ($107M last qtr)$FTNT ($97.6M 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)
- Semiconductors15.6%—
- Interactive Media & Services12.2%—
- Systems Software8.7%—
- Broadline Retail7.2%—
- Diversified Banks6.9%—
- Life Sciences Tools & Services4.7%—
- Transaction & Payment Processing Services4.5%—
- Oil & Gas Refining & Marketing4.4%—
- Other holdings35.7%—
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
10 of 10 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $NVDA | NVIDIA Corporation | 3.66M | $619M | -332K | 12.0% |
| $MSFT | Microsoft Corporation | 1.25M | $450M | -364K | 8.7% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 1.4M | $394M | -334K | 7.6% |
| $AMZN | Amazon.com Inc | 1.82M | $370M | -300K | 7.2% |
| $JPM | JP Morgan Chase & Co | 1.25M | $356M | +241K | 6.9% |
| $DHR | Danaher Corporation | 1.34M | $246M | -103K | 4.8% |
| $MA | Mastercard Incorporated | 490K | $237M | +107K | 4.6% |
| $META | Meta Platforms Inc | 422K | $236M | -35K | 4.6% |
| $VLO | Valero Energy Corporation | 936K | $231M | -165K | 4.5% |
| $MNST | Monster Beverage Corporation | 2.96M | $210M | -579K | 4.1% |
…and 15 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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