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FRONTIER CAPITAL MANAGEMENT CO LLC
FRONTIER CAPITAL MANAGEMENT CO LLC · Investor
1Y performance ⓘ
+64%
AUM (13F)
$9.7B
# of Holdings
289
3Y performance ⓘ
+134%
vs S&P 500 ⓘ
+62%
Updated
Mar 31
FRONTIER CAPITAL MANAGEMENT CO LLC's FRONTIER CAPITAL MANAGEMENT CO LLC holds 289 U.S.-equity positions worth $9.7B (SEC 13F, Q1 2026). Top positions: FTAI Aviation Ltd. Common Stock 2.7%, DARLING INGREDIENTS INC. 1.6%, United Therapeutics Corp 1.5%. 13F-replication return is +134% over 3 years (+62 pts vs the S&P 500) — a replicated, non-audited figure.
Holdings
| Stock | % of portfolio | Shares | Value | Latest activity | Avg buy price | Current price | Date |
|---|---|---|---|---|---|---|---|
| FTAI FTAI Aviation Ltd. Common Stock | 2.7% | 1.1M | $260M | ▼ 18% (−234K) | $27.96 | $272.05 (+873%) | 2026-03-31 |
| DAR DARLING INGREDIENTS INC. | 1.6% | 2.5M | $152M | ▼ 9.7% (−265K) | $63.79 | $53.22 (−17%) | 2026-03-31 |
| UTHR United Therapeutics Corp | 1.5% | 253K | $150M | ▲ 39% (+72K) | $223.96 | $538.30 (+140%) | 2026-03-31 |
| CRCL Circle Internet Group, Inc. | 1.5% | 1.5M | $148M | ▲ 37% (+418K) | $79.30 | $79.95 (+1%) | 2026-03-31 |
| GVA Granite Construction Inc. | 1.5% | 1.2M | $142M | ▼ 5.6% (−70K) | $41.08 | $151.50 (+269%) | 2026-03-31 |
| LRN Stride, Inc. | 1.4% | 1.5M | $137M | ▲ 864% (+1.4M) | $85.31 | $82.32 (−4%) | 2026-03-31 |
| AMTM Amentum Holdings, Inc. | 1.3% | 4.9M | $129M | ▼ 15% (−843K) | $18.20 | $21.06 (+16%) | 2026-03-31 |
| XPO XPO, Inc. | 1.3% | 652K | $127M | ▼ 9.5% (−68K) | $31.90 | $201.19 (+531%) | 2026-03-31 |
| ALK Alaska Air Group, Inc. | 1.3% | 3.4M | $124M | ▲ 48% (+1.1M) | $41.96 | $48.80 (+16%) | 2026-03-31 |
| KNX Knight-Swift Transportation Holdings Inc. Class A Common Stock | 1.2% | 2.1M | $120M | ▲ 6.8% (+132K) | $56.58 | $75.40 (+33%) | 2026-03-31 |
| AKAM Akamai Technologies Inc | 1.2% | 1.0M | $119M | ▲ 127% (+580K) | $87.25 | $120.74 (+38%) | 2026-03-31 |
| EXP Eagle Materials, Inc. | 1.2% | 611K | $116M | ▲ 12% (+65K) | $146.75 | $223.50 (+52%) | 2026-03-31 |
| UCTT Ultra Clean Holdings, Inc. | 1.1% | 1.8M | $111M | ▼ 49% (−1.7M) | $33.16 | $123.14 (+271%) | 2026-03-31 |
| BPOP Popular Inc | 1.1% | 801K | $107M | ▼ 16% (−153K) | $57.41 | $162.73 (+183%) | 2026-03-31 |
| ASH Ashland Inc. | 1.1% | 1.9M | $106M | ▲ 34% (+487K) | $47.91 | $67.69 (+41%) | 2026-03-31 |
| ATI ATI Inc. | 1.0% | 694K | $101M | ▼ 43% (−533K) | $39.46 | $204.09 (+417%) | 2026-03-31 |
| JAZZ Jazz Pharmaceuticals, Inc. | 1.0% | 517K | $98M | ▲ 184% (+335K) | $146.33 | $225.92 (+54%) | 2026-03-31 |
| TDW Tidewater, Inc. | 0.9% | 1.1M | $90M | ▲ 13% (+124K) | $71.07 | $66.35 (−7%) | 2026-03-31 |
| APGE Apogee Therapeutics, Inc. Common Stock | 0.9% | 1.1M | $90M | ▲ 122% (+584K) | $66.45 | $132.55 (+99%) | 2026-03-31 |
| ENTG Entegris Inc | 0.9% | 755K | $88M | ▼ 28% (−293K) | $112.53 | $184.00 (+64%) | 2026-03-31 |
| MPWR Monolithic Power Systems, Inc. | 0.9% | 80K | $87M | ▼ 5.3% (−4K) | $500.54 | $1,537.88 (+207%) | 2026-03-31 |
| KEX Kirby Corporation | 0.9% | 644K | $86M | ▲ 385% (+511K) | $69.70 | $141.32 (+103%) | 2026-03-31 |
| ADC Agree Realty Corporation | 0.8% | 1.1M | $83M | ▲ 37% (+295K) | $68.61 | $73.39 (+7%) | 2026-03-31 |
| SANM Sanmina Corp | 0.8% | 637K | $83M | — | $51.37 | $253.45 (+393%) | 2026-03-31 |
| INSM Insmed, Inc. | 0.8% | 470K | $77M | ▲ 65% (+185K) | $27.13 | $98.61 (+263%) | 2026-03-31 |
| ALAB Astera Labs, Inc. Common Stock | 0.8% | 688K | $75M | ▼ 6.4% (−47K) | $59.67 | $439.66 (+637%) | 2026-03-31 |
| LBRT Liberty Energy Inc. | 0.7% | 2.5M | $72M | ▲ 1277% (+2.3M) | $18.46 | $27.85 (+51%) | 2026-03-31 |
| BBIO BridgeBio Pharma, Inc. Common Stock | 0.7% | 958K | $71M | ▲ 16% (+132K) | $30.92 | $68.92 (+123%) | 2026-03-31 |
| BLDR Builders FirstSource, Inc. | 0.7% | 860K | $71M | ▲ 49% (+284K) | $88.78 | $77.33 (−13%) | 2026-03-31 |
| BURL BURLINGTON STORES, INC. | 0.7% | 217K | $70M | ▲ 10% (+20K) | $202.10 | $340.27 (+68%) | 2026-03-31 |
| PRDO Perdoceo Education Corporation | 0.7% | 1.8M | $69M | ▼ 3.4% (−65K) | $13.43 | $32.80 (+144%) | 2026-03-31 |
| WFRD Weatherford International plc Ordinary Shares | 0.7% | 725K | $69M | ▲ 1.5% (+11K) | $66.42 | $91.78 (+38%) | 2026-03-31 |
| RCL Royal Caribbean Group | 0.7% | 238K | $66M | ▲ 10% (+22K) | $323.58 | $309.36 (−4%) | 2026-03-31 |
| LUNR Intuitive Machines, Inc. Class A Common Stock | 0.7% | 3.5M | $65M | ▲ 32% (+845K) | $10.52 | $21.99 (+109%) | 2026-03-31 |
| WTFC Wintrust Financial Corp | 0.7% | 462K | $64M | ▼ 15% (−81K) | $72.95 | $155.77 (+114%) | 2026-03-31 |
| SAIA Saia, Inc. | 0.7% | 182K | $64M | ▼ 1.2% (−2K) | $273.99 | $436.05 (+59%) | 2026-03-31 |
| SILA Sila Realty Trust, Inc. | 0.7% | 2.7M | $64M | ▲ 18% (+412K) | $25.29 | $30.34 (+20%) | 2026-03-31 |
| KYMR Kymera Therapeutics, Inc. Common Stock | 0.7% | 760K | $63M | ▲ 19% (+124K) | $47.33 | $99.45 (+110%) | 2026-03-31 |
| FBP First BanCorp. | 0.6% | 2.9M | $62M | ▼ 4.1% (−125K) | $11.42 | $25.74 (+125%) | 2026-03-31 |
| INDI indie Semiconductor, Inc. Class A Common Stock | 0.6% | 19.2M | $62M | ▲ 2.1% (+403K) | $9.40 | $4.05 (−57%) | 2026-03-31 |
| RNST Renasant Corporation | 0.6% | 1.7M | $62M | ▼ 15% (−306K) | $30.58 | $42.11 (+38%) | 2026-03-31 |
| NTRA Natera, Inc. Common Stock | 0.6% | 294K | $59M | ▼ 44% (−227K) | $55.52 | $228.80 (+312%) | 2026-03-31 |
| AR ANTERO RESOURCES CORPORATION | 0.6% | 1.3M | $57M | NEW (+1.3M) | $42.44 | $34.03 (−20%) | 2026-03-31 |
| ELAN Elanco Animal Health Incorporated Common Stock | 0.6% | 2.4M | $57M | ▼ 8.3% (−214K) | $9.40 | $23.90 (+154%) | 2026-03-31 |
| LSCC Lattice Semiconductor Corp | 0.6% | 605K | $56M | ▼ 38% (−373K) | $78.23 | $155.27 (+98%) | 2026-03-31 |
| P Everpure, Inc. | 0.6% | 945K | $56M | ▲ 7.2% (+64K) | $35.62 | $77.04 (+116%) | 2026-03-31 |
| EBC Eastern Bankshares, Inc. Common Stock | 0.6% | 2.8M | $56M | ▼ 4.1% (−121K) | $16.39 | $20.74 (+27%) | 2026-03-31 |
| SIGI Selective Insurance Group | 0.6% | 730K | $55M | ▲ 19% (+115K) | $86.65 | $92.44 (+7%) | 2026-03-31 |
| FR First Industrial Realty Trust, Inc. | 0.6% | 946K | $55M | ▼ 5.2% (−52K) | $47.59 | $63.12 (+33%) | 2026-03-31 |
| TER Teradyne, Inc. Common Stock | 0.6% | 183K | $54M | ▼ 68% (−388K) | $125.92 | $457.00 (+263%) | 2026-03-31 |
Showing top 50 of 289 holdings by value.
FAQ ▾
What are FRONTIER CAPITAL MANAGEMENT CO LLC's largest holdings?
As of the latest 13F: FTAI Aviation Ltd. Common Stock 2.7%, DARLING INGREDIENTS INC. 1.6%, United Therapeutics Corp 1.5%, Circle Internet Group, Inc. 1.5%, Granite Construction Inc. 1.5%.
How big is FRONTIER CAPITAL MANAGEMENT CO LLC's 13F portfolio?
$9.7B across 289 disclosed U.S.-equity positions.
What is FRONTIER CAPITAL MANAGEMENT CO LLC's 3-year performance?
+134% (13F-replication, price return), +62 pts vs the S&P 500. Not an audited fund return.
Where does this data come from?
U.S. SEC Form 13F-HR institutional holdings filings.
Sourced from SEC Form 13F-HR filings · Not investment advice ▾
Data as of 2026-03-31 · Methodology
13F-replication (price return, filing-date based) — not an audited fund return.
Published by WealthFile · Not investment advice.
Latest activity = change vs. the prior 13F. Avg buy price = est. entry over the trailing 3 years (gain = vs. latest price). Returns are 13F-replication, not audited fund returns. Sourced from SEC 13F filings.