J. L. Bainbridge & Co., Inc.
SEC Form 13F institutional filer · CIK 0001742315
13F-HR · 67 reported holdings · 2026-03-31
J. L. Bainbridge & Co., Inc. is an investment advisor.
Reported long-US-equity value
$0.97B
Top-10 concentration
72.4%
J. L. Bainbridge & Co., Inc. — $966M AUM allocation strategy
J. L. Bainbridge & Co., Inc. files SEC Form 13F and reports $966M of long US equity value across 67 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 27.5%, followed by Communication Services 20.5% and Financials 15.4%.
The top 10 holdings account for 72% 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.
J. L. Bainbridge & Co., Inc. — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$966M
total across 67 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
72% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$BX +133K sh · +$8.3M+$NVDA +131K sh · +$22.6M+$AMZN +36.1K sh · +$1.92M
Biggest trims (shares)
−$QCOM −206K sh · −$35.3M−$DAL −122K sh · −$9.57M−$AXP −30.2K sh · −$15.2M
Exited to nil (held last quarter, gone now)
$ZBRA ($265K last qtr)$ORCL ($257K last qtr)$CRWD ($205K 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 & Services18.5%—
- Systems Software12.2%—
- Technology Hardware, Storage & Peripherals12.1%—
- Investment Banking & Brokerage7.5%—
- Broadline Retail6.1%—
- Electrical Components & Equipment5.8%—
- Pharmaceuticals5.8%—
- Automobile Manufacturers4.4%—
- Other holdings27.6%—
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 |
|---|---|---|---|---|---|
| $MSFT | Microsoft Corporation | 317K | $117M | -1.86K | 12.2% |
| $AAPL | Apple Inc | 461K | $117M | -15.9K | 12.1% |
| $GS | Goldman Sachs Group Inc | 85.1K | $72M | -3.44K | 7.4% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 246K | $70.7M | -14.2K | 7.3% |
| $AMZN | Amazon.com Inc | 285K | $59.3M | +36.1K | 6.1% |
| $ETN | Eaton Corporation PLC | 158K | $56.7M | -1.55K | 5.9% |
| $LLY | Eli Lilly and Company | 61.5K | $56.5M | +6 | 5.9% |
| $GOOGL | Alphabet Inc | 195K | $55.9M | -12.1K | 5.8% |
| $META | Meta Platforms Inc | 90.2K | $51.6M | +16.1K | 5.3% |
| $GM | General Motors Company | 569K | $42.4M | -11.4K | 4.4% |
…and 57 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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