Mechanics Bank Trust Department
SEC Form 13F institutional filer · CIK 0001439743
13F-HR · 141 reported holdings · 2026-03-31
Reported long-US-equity value
$0.55B
Top-10 concentration
42.1%
Mechanics Bank Trust Department — $552M AUM allocation strategy
Mechanics Bank Trust Department files SEC Form 13F and reports $552M of long US equity value across 141 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 14.8%, followed by Financials 11.0% and Communication Services 5.7%.
The top 10 holdings account for 42% 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.
Mechanics Bank Trust Department — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$552M
total across 141 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
42% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$NVDA +3.35K sh · −$344K+$JPM +1.64K sh · −$577K+$ABBV +1.27K sh · +$131K
Biggest trims (shares)
−$IVZ −102K sh · −$2.54M−$KO −6.5K sh · −$203K−$PAYX −4.72K sh · −$713K
Exited to nil (held last quarter, gone now)
$INTU ($539K last qtr)$TMUS ($370K last qtr)$CRM ($342K last qtr)$COF ($267K last qtr)$SYY ($221K 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)
- Technology Hardware, Storage & Peripherals6.0%—
- Interactive Media & Services5.7%—
- Systems Software4.8%—
- Asset Management & Custody Banks3.1%—
- Consumer Staples Merchandise Retail2.9%—
- Financial Exchanges & Data2.6%—
- Integrated Oil & Gas2.5%—
- Semiconductors2.5%—
- Other holdings69.9%—
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
6 of 6 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $AAPL | Apple Inc | 130K | $32.9M | -183 | 6.0% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 110K | $31.6M | -2.57K | 5.7% |
| $MSFT | Microsoft Corporation | 71.7K | $26.6M | +101 | 4.8% |
| $IVZ | Invesco Ltd | 700K | $16.7M | -102K | 3.0% |
| $COST | Costco Wholesale Corporation | 16.3K | $16.2M | -148 | 2.9% |
| $SPGI | S&P Global Inc | 82.6K | $14.2M | +4 | 2.6% |
…and 135 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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