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GRANDFIELD & DODD, LLC

Registered adviser
Location
NEW YORK, NY
Portfolio Value
Mid $1,908,212,324
Diversification
Diversified
Filing Date
Global Rank
#1,589 / 8,807 ▼ 139
Top Industry
Aerospace & Defense 10.5%
Period ended 4 months ago
Filed Aug 7, 2026 · 2mo
26 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
Registered adviser
Form ADV roster, Oct 1, 2026
Form ADV adviser
CRD 110971
Roster of Oct 1, 2026
Regulatory AUM
$2,213,268,773
Main clients
Individuals and high net worth (97% of AUM)
Form ADV history
Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.
Rosters Regulatory AUM Main clients
Apr 2026 to Oct 2026 $2,213,268,773 Individuals and high net worth (97%)
Apr 2025 to Mar 2026 $2,028,691,594 Individuals and high net worth (97%)
Apr 2024 to Mar 2025 $1,925,532,931 Individuals and high net worth (97%)
May 2023 to Mar 2024 $1,770,623,898 Individuals and high net worth (97%)
Apr 2023 $1,770,623,898 Individuals and high net worth (97%)
Apr 2022 to Mar 2023 $1,947,030,881 Individuals and high net worth (97%)
3 earlier changes not shown.

Portfolio style

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

Style
Diversified active
Top 10 weight 41.2%, 36.9 effective positions, active share 74.5% 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
5.1% over the last four quarters (under 30%)
Horizon
Long horizon
Value-weighted holding period 24.3 quarters (12+), a floor since 81.3% of the book was already held when coverage starts

Closest benchmark: the S&P 500 as of 2026-06-30, active share 74.5%; sector active share 24.3% 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

217 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
9.4%
+4.2 pts
Top 5
26.4%
+4.3 pts
Top 10
41.2%
+3.7 pts
HHI
271
Sep 2023 → Jun 2026 · range 201 – 271
Diversified+46

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Technology 31.5% $601,371,714
Industrials 20.5% $390,659,370
Healthcare 13.6% $259,980,051
Financial Services 8.3% $159,001,304
Basic Materials 8.1% $153,934,951
Consumer Defensive 5.6% $107,793,584
Communication Services 4.0% $75,945,112
Energy 3.9% $73,986,780
Consumer Cyclical 2.0% $37,844,674
Unclassified 1.6% $30,530,352
Real Estate 0.8% $15,415,351
Utilities 0.1% $1,749,081

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
25 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open

New Positions

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

Sold Out

Positions the filer fully exited
5 positions
Ticker Shares Value Open
— 50,104 $0

Portfolio Positions

Export CSV View 13F filing
217 tracked positions · $1,908,212,324 total · filing declares 217 positions · $1,907,822,121 · as of Jun 30, 2026
Showing 1–50 of 217 positions by value · page 1 of 5
Ticker Company Shares Value (USD) % of Portfolio History

Showing the top 50 of 217 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.