FRONTIER CAPITAL MANAGEMENT CO LLC
Institutional investor · Portfolio as of Q2 2025
Top Holdings294 positions
Stock | Shares | Value | Weight | Avg Buy | Est. P&L | Held | Conviction |
|---|---|---|---|---|---|---|---|
FTAI AVIATION LTD | 2.1M | $246.7M | 2.3% | $37.46 | +204.06% | 11 qtrssince 2022-Q4 | Increased 56 |
ATI INC | 2.2M | $192.2M | 1.8% | $29.84 | +189.39% | 26 qtrssince 2019-Q1 | Decreased 0 |
MATTEL INC | 9M | $177.1M | 1.6% | $16.13 | +22.77% | 23 qtrssince 2019-Q4 | Increased 48 |
EAGLE MATLS INC | 830,284 | $167.8M | 1.6% | $171.63 | +19.05% | 26 qtrssince 2019-Q1 | Increased 62 |
XPO INC | 1.1M | $143.2M | 1.3% | $52.77 | +141.58% | 17 qtrssince 2021-Q2 | Decreased 0 |
AMENTUM HOLDINGS, INC. COM | 5.5M | $128.9M | 1.2% | $20.06 | +17.67% | 2 qtrssince 2025-Q1 | Increased 66 |
GRANITE CONSTR INC | 1.4M | $128.1M | 1.2% | $49.00 | +88.84% | 26 qtrssince 2019-Q1 | Increased 54 |
DARLING INGREDIENTS INC | 3.3M | $126.1M | 1.2% | $38.42 | -0.78% | 9 qtrssince 2023-Q2 | Increased 70 |
SANMINA CORP | 1.2M | $120.5M | 1.1% | $69.32 | +41.48% | 7 qtrssince 2023-Q4 | Increased 57 |
POPULAR INC | 1.1M | $119.2M | 1.1% | $70.23 | +53.33% | 26 qtrssince 2019-Q1 | Increased 54 |
CHENIERE ENERGY INC | 417,016 | $101.6M | 0.9% | $220.95 | +8.91% | 3 qtrssince 2024-Q4 | Decreased 0 |
MONOLITHIC POWER SYSTEMS INC | 132,843 | $97.2M | 0.9% | $492.66 | +48.57% | 26 qtrssince 2019-Q1 | Increased 44 |
CARLYLE GROUP INC | 1.9M | $97M | 0.9% | $43.67 | +13.86% | 21 qtrssince 2020-Q2 | Decreased 0 |
SILICON MOTION TECHNOL-ADR | 1.3M | $96.3M | 0.9% | $62.25 | +18.34% | 2 qtrssince 2025-Q1 | Increased 68 |
DOLBY LABORATORIES INC-CL A | 1.2M | $91.9M | 0.9% | $77.06 | -6.25% | 3 qtrssince 2024-Q4 | Increased 43 |
TWILIO INC - A | 731,188 | $90.9M | 0.8% | $85.28 | +43.92% | 9 qtrssince 2023-Q2 | Decreased 0 |
MKS INC | 912,380 | $90.7M | 0.8% | $100.17 | -1.43% | 26 qtrssince 2019-Q1 | Increased 68 |
CARPENTER TECHNOLOGY | 325,956 | $90.1M | 0.8% | $36.09 | +663.85% | 26 qtrssince 2019-Q1 | Decreased 0 |
INSPIRE MED SYS INC | 693,203 | $90M | 0.8% | $182.90 | -27.61% | 25 qtrssince 2019-Q2 | Increased 60 |
VERTIV HOLDINGS CO-A | 690,702 | $88.7M | 0.8% | $67.02 | +89.63% | 14 qtrssince 2022-Q1 | Increased 48 |
FRONTIER CAPITAL MANAGEMENT CO LLC manages $10.8B across 294 positions as of Q2 2025. Top holdings: FTAI (2.3%), ATI (1.8%), MAT (1.6%). Fund DNA: Steady Compounder. HoldingsIntel Score: 1.5/5.0.
Active quarter - 25 new positions, 14 exits, 126 increased. Top move: DAR (INCREASED, conviction 70). Portfolio: $10.8B across 294 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