FRONTIER CAPITAL MANAGEMENT CO LLC
Institutional investor · Portfolio as of Q3 2025
Top Holdings297 positions
Stock | Shares | Value | Weight | Avg Buy | Est. P&L | Held | Conviction |
|---|---|---|---|---|---|---|---|
FTAI AVIATION LTD | 1.8M | $304.1M | 2.7% | $37.46 | +341.99% | 12 qtrssince 2022-Q4 | Decreased 0 |
EAGLE MATLS INC | 943,683 | $219.9M | 2.0% | $178.97 | +30.05% | 27 qtrssince 2019-Q1 | Increased 55 |
TERADYNE INC | 1.4M | $196.4M | 1.8% | $116.93 | +14.74% | 4 qtrssince 2024-Q4 | Increased 78 |
BUILDERS FIRSTSOURCE INC | 1.3M | $156.5M | 1.4% | $109.85 | +10.38% | 22 qtrssince 2020-Q2 | Increased 77 |
MONOLITHIC POWER SYSTEMS INC | 163,916 | $150.9M | 1.4% | $566.76 | +55.89% | 27 qtrssince 2019-Q1 | Increased 58 |
II-VI INC | 1.4M | $147.7M | 1.3% | $89.60 | +20.50% | 13 qtrssince 2022-Q3 | Increased 75 |
XPO INC | 1.1M | $143.7M | 1.3% | $52.77 | +141.34% | 18 qtrssince 2021-Q2 | Decreased 0 |
GRANITE CONSTR INC | 1.3M | $142.2M | 1.3% | $49.00 | +122.04% | 27 qtrssince 2019-Q1 | Decreased 0 |
CARLYLE GROUP INC | 2.2M | $138.2M | 1.2% | $46.16 | +32.13% | 22 qtrssince 2020-Q2 | Increased 55 |
ENTEGRIS INC | 1.5M | $137M | 1.2% | $89.97 | +2.42% | 5 qtrssince 2024-Q3 | Increased 77 |
POPULAR INC | 1.1M | $136.7M | 1.2% | $70.23 | +77.77% | 27 qtrssince 2019-Q1 | Decreased 0 |
MKS INC | 1.1M | $133.8M | 1.2% | $103.77 | +18.78% | 27 qtrssince 2019-Q1 | Increased 56 |
ATI INC | 1.6M | $126.4M | 1.1% | $29.84 | +172.63% | 27 qtrssince 2019-Q1 | Decreased 0 |
AMENTUM HOLDINGS, INC. COM | 5.2M | $124.6M | 1.1% | $20.06 | +19.36% | 3 qtrssince 2025-Q1 | Decreased 0 |
ROYAL CARIBBEAN CRUISES LTD | 353,891 | $114.5M | 1.0% | $325.61 | 0.00% | 1 qtr | New 69 |
VERTIV HOLDINGS CO-A | 712,641 | $107.5M | 1.0% | $69.36 | +106.53% | 15 qtrssince 2022-Q1 | Increased 44 |
VISTRA CORP | 539,134 | $105.6M | 0.9% | $195.77 | +0.97% | 2 qtrssince 2025-Q2 | Increased 62 |
APPLOVIN CORP-CLASS A | 142,788 | $102.6M | 0.9% | $335.38 | +112.40% | 4 qtrssince 2024-Q4 | Decreased 0 |
SILICON MOTION TECHNOL-ADR | 1M | $98.9M | 0.9% | $62.25 | +50.23% | 3 qtrssince 2025-Q1 | Decreased 0 |
SANMINA CORP | 792,078 | $91.2M | 0.8% | $69.32 | +63.87% | 8 qtrssince 2023-Q4 | Decreased 0 |
FRONTIER CAPITAL MANAGEMENT CO LLC manages $11.2B across 297 positions as of Q3 2025. Top holdings: FTAI (2.7%), EXP (2.0%), TER (1.8%). Fund DNA: Steady Compounder. HoldingsIntel Score: 1.5/5.0.
Active quarter - 24 new positions, 21 exits, 123 increased. Top move: TER (INCREASED, conviction 78). Portfolio: $11.2B across 297 positions.
Top holdings by portfolio weight
Portfolio allocation by GICS sector
Behavioral investing profile
Position Outcomes
Best and worst performing positions by estimated return
Top Winners
Top Losers
Cost basis estimates based on full filing history using quarter-end prices. Actual transaction prices are not disclosed in 13F filings.
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Data sourced from SEC EDGAR 13F filings. Not financial advice. Full disclaimer
Verify source filings on SEC EDGAR