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MARTINGALE ASSET MANAGEMENT L P

Location
BOSTON, MA
Portfolio Value
Mid $4,231,667,176
Diversification
Diversified
Filing Date
Global Rank
#835 / 8,700 ▲ 93
Top Industry
Drug Manufacturers - General 6.4%
Period ended 2 months ago
Filed Aug 13, 2026 · 31d
26 quarters · since Mar 2020

Portfolio Concentration

825 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
1.4%
+0.0 pts
Top 5
6.3%
+0.2 pts
Top 10
11.5%
+0.4 pts
HHI
47
Sep 2023 → Jun 2026 · range 47 – 64
Diversified−3

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Financial Services 17.3% $730,563,028
Technology 15.5% $654,607,272
Healthcare 14.6% $618,306,887
Industrials 12.1% $511,888,498
Consumer Defensive 9.3% $391,843,990
Consumer Cyclical 7.6% $319,723,447
Utilities 6.8% $289,325,629
Energy 6.3% $266,311,338
Communication Services 5.5% $230,975,224
Real Estate 2.9% $121,030,028
Basic Materials 2.3% $97,091,835

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
25 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
25 positions
Ticker Shares Value Open
180,360 $2,526,843

Portfolio Positions

Export CSV View 13F filing
825 tracked positions · $4,231,667,176 total · filing declares 828 positions · $4,222,292,371 · as of Jun 30, 2026
Showing 1–50 of 825 positions by value · page 1 of 17
Ticker Company Shares Value (USD) % of Portfolio History

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.