Skip to main content

FRONTIER CAPITAL MANAGEMENT CO LLC

Location
Boston, MA
Portfolio Value
Mid $9,423,596,085
Diversification
Diversified
Filing Date
Global Rank
#351 / 8,420 ▲ 51
Top Industry
Banks - Regional 7.6%
3Y Alpha vs SPY
+0.8%
Period ended 5 months ago
Filed Feb 17, 2026 · 4mo
24 quarters · since Mar 2020

Clone Performance

Jun 2023–Jun 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio
+80.2%
SPY
+76.5%
Annualised alpha
+0.8%
Max drawdown
−29.6%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

295 positions · as of Dec 31, 2025 · Δ vs Sep 30, 2025
Top Position
2.7%
−0.0 pts
Top 5
8.9%
−0.4 pts
Top 10
15.1%
−0.6 pts
HHI
66
Mar 2023 → Dec 2025 · range 63 – 92
Diversified−3

Portfolio Trend

24 quarters · across all stocks

Sector Breakdown

As of Dec 31, 2025
Sector % Portfolio Value
Technology 24.0% $2,262,966,548
Industrials 23.1% $2,178,564,879
Healthcare 13.9% $1,308,109,741
Financial Services 12.6% $1,189,762,708
Consumer Cyclical 10.2% $961,059,128
Real Estate 4.7% $443,103,662
Consumer Defensive 3.2% $301,525,693
Basic Materials 3.0% $283,578,557
Energy 2.6% $244,123,595
Communication Services 1.4% $128,384,641
Utilities 1.3% $122,416,933

Last Quarter's Activity

Export CSV
Dec 31, 2025 vs Sep 30, 2025

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
24 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
295 positions · $9,423,596,085 total · as of Dec 31, 2025
Showing 1–50 of 295 positions by value · page 1 of 6
Ticker Company Shares Value (USD) % of Portfolio History