Baldwin Investment Management, LLC
SEC Form 13F institutional filer · CIK 0001346378
13F-HR · 157 reported holdings · 2026-03-31
Baldwin Investment Management, LLC is an investment advisor.
Reported long-US-equity value
$0.81B
Top-10 concentration
66.0%
Baldwin Investment Management, LLC — $810M AUM allocation strategy
Baldwin Investment Management, LLC files SEC Form 13F and reports $810M of long US equity value across 157 reported holdings for 2026-03-31.
Its largest sector bet is Industrials 51.7%, followed by Information Technology 11.3% and Financials 3.7%.
The top 10 holdings account for 66% 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.
Baldwin Investment Management, LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$810M
total across 157 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
66% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$DIS +8.04K sh · +$600K+$DELL +6.11K sh · +$1.24M+$ADSK +5.83K sh · +$1.12M
Biggest trims (shares)
−$LRCX −9.54K sh · +$2.13M−$UBER −8.91K sh · −$795K−$KMB −2.48K sh · −$289K
Exited to nil (held last quarter, gone now)
$CMCSA ($366K last qtr)$SYY ($256K last qtr)$QCOM ($233K last qtr)$VLTO ($223K last qtr)$PGR ($201K 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)
- Aerospace & Defense50.3%—
- Semiconductors5.2%—
- Semiconductor Materials & Equipment2.3%—
- Technology Hardware, Storage & Peripherals2.2%—
- Diversified Banks1.7%—
- Biotechnology1.7%—
- Systems Software1.5%—
- Consumer Staples Merchandise Retail1.4%—
- Other holdings33.7%—
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 |
|---|---|---|---|---|---|
| $HONA | Honeywell Aerospace Inc | 555 | $399M | -1 | 49.2% |
| $AVGO | Broadcom Inc | 71.4K | $22.1M | -2.06K | 2.7% |
| $NVDA | NVIDIA Corporation | 114K | $19.9M | -1.35K | 2.5% |
| $LRCX | Lam Research Corporation | 88.6K | $18.9M | -9.54K | 2.3% |
| $AAPL | Apple Inc | 70.6K | $17.9M | +621 | 2.2% |
| $JPM | JP Morgan Chase & Co | 48.2K | $14.2M | +60 | 1.7% |
| $MSFT | Microsoft Corporation | 33K | $12.2M | +563 | 1.5% |
| $COST | Costco Wholesale Corporation | 11.6K | $11.5M | +225 | 1.4% |
| $LLY | Eli Lilly and Company | 10.9K | $10.1M | -36 | 1.2% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 33.5K | $9.62M | -175 | 1.2% |
…and 147 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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