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Mechanics Bank Trust Department

Location
Walnut Creek, CA
Portfolio Value
Small $672,756,657
Diversification
Diversified
Filing Date
Global Rank
#2,758 / 8,807 ▲ 4 · as of Jun 2026
Top Industry
Software - Infrastructure 10.7%
Period ended 20 days ago
Filed Oct 13, 2026 · 7d
27 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type
Unknown

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, the newest measured quarter, never from the firm's own description.

Style
Diversified active
Top 10 weight 44.8%, 35.6 effective positions, active share 57.6% against the S&P 500 as of 2026-06-30; it meets none of the index-like, systematic-like or concentrated tests
Turnover
Low turnover
12.0% over the last four quarters (under 30%)
Horizon
Long horizon
Value-weighted holding period 21.6 quarters (12+), a floor since 67.5% of the book was already held when coverage starts

Closest benchmark: the S&P 500 as of 2026-06-30, active share 57.6%; sector active share 34.6% against the combined 13F book's sector weights.

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

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Portfolio Concentration

204 tracked positions · as of Sep 30, 2026 · Δ vs Jun 30, 2026
Top Position
6.8%
−1.5 pts
Top 5
30.8%
+2.0 pts
Top 10
47.6%
+2.8 pts
HHI
304
Dec 2023 → Sep 2026 · range 236 – 304
Diversified+23

Portfolio Trend

27 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2026
Sector % Portfolio Value
Unclassified 33.5% $225,068,588
Technology 21.2% $142,771,790
Financial Services 12.4% $83,316,921
Communication Services 7.4% $49,735,254
Healthcare 6.7% $45,278,795
Consumer Defensive 5.1% $34,547,639
Consumer Cyclical 5.1% $34,528,714
Industrials 3.7% $24,977,731
Energy 3.5% $23,224,680
Utilities 0.6% $4,242,079
Real Estate 0.4% $3,022,897
Basic Materials 0.3% $2,041,569

Last Quarter's Activity

Export CSV
Sep 30, 2026 vs Jun 30, 2026

Added To

Positions the filer increased
25 positions
Ticker Δ Shares Shares Value Open
— +9,593 85,137 $0
— +1,270 146,804 $0

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open
— −8,195 129,862 $0

New Positions

Positions the filer opened this quarter
6 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
12 positions
Ticker Shares Value Open
— 7,673 $1,447,818

Portfolio Positions

Export CSV View 13F filing
204 tracked positions · $672,756,657 total · filing declares 205 positions · $798,115,623 · as of Sep 30, 2026
Showing 1–50 of 204 positions by value · page 1 of 5
Ticker Company Shares Value (USD) % of Portfolio History

Showing the top 50 of 204 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.