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FRONTIER CAPITAL MANAGEMENT CO LLC
FRONTIER CAPITAL MANAGEMENT CO LLC · Investor
1Y performance ⓘ
+51%
AUM (13F)
$9.7B
# of Holdings
290
3Y performance ⓘ
+116%
vs S&P 500 ⓘ
+52%
Updated
Mar 31
FRONTIER CAPITAL MANAGEMENT CO LLC's FRONTIER CAPITAL MANAGEMENT CO LLC holds 290 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 +116% over 3 years (+52 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) | $40.29 | $206.00 (+411%) | 2026-03-31 |
| DAR DARLING INGREDIENTS INC. | 1.6% | 2.5M | $152M | ▼ 9.7% (−265K) | $38.34 | $60.64 (+58%) | 2026-03-31 |
| UTHR United Therapeutics Corp | 1.5% | 253K | $150M | ▲ 39% (+72K) | $409.82 | $517.71 (+26%) | 2026-03-31 |
| CRCL Circle Internet Group, Inc. | 1.5% | 1.5M | $148M | ▲ 37% (+418K) | $83.65 | $62.61 (−25%) | 2026-03-31 |
| GVA Granite Construction Inc. | 1.5% | 1.2M | $142M | ▼ 5.6% (−70K) | $52.34 | $120.97 (+131%) | 2026-03-31 |
| LRN Stride, Inc. | 1.4% | 1.5M | $137M | ▲ 864% (+1.4M) | $89.04 | $80.29 (−10%) | 2026-03-31 |
| AMTM Amentum Holdings, Inc. | 1.3% | 4.9M | $129M | ▼ 15% (−843K) | $20.95 | $22.20 (+6%) | 2026-03-31 |
| XPO XPO, Inc. | 1.3% | 652K | $127M | ▼ 9.5% (−68K) | $49.97 | $200.97 (+302%) | 2026-03-31 |
| ALK Alaska Air Group, Inc. | 1.3% | 3.4M | $124M | ▲ 48% (+1.1M) | $44.11 | $47.45 (+8%) | 2026-03-31 |
| KNX Knight-Swift Transportation Holdings Inc. Class A Common Stock | 1.2% | 2.1M | $120M | ▲ 6.8% (+132K) | $53.22 | $69.53 (+31%) | 2026-03-31 |
| AKAM Akamai Technologies Inc | 1.2% | 1.0M | $119M | ▲ 127% (+580K) | $102.68 | $115.18 (+12%) | 2026-03-31 |
| EXP Eagle Materials, Inc. | 1.2% | 611K | $116M | ▲ 12% (+65K) | $192.66 | $204.94 (+6%) | 2026-03-31 |
| UCTT Ultra Clean Holdings, Inc. | 1.1% | 1.8M | $111M | ▼ 49% (−1.7M) | $30.78 | $83.31 (+171%) | 2026-03-31 |
| BPOP Popular Inc | 1.1% | 801K | $107M | ▼ 16% (−153K) | $79.10 | $175.21 (+122%) | 2026-03-31 |
| ASH Ashland Inc. | 1.1% | 1.9M | $106M | ▲ 34% (+487K) | $55.51 | $72.61 (+31%) | 2026-03-31 |
| ATI ATI Inc. | 1.0% | 694K | $101M | ▼ 43% (−533K) | $40.44 | $187.44 (+363%) | 2026-03-31 |
| JAZZ Jazz Pharmaceuticals, Inc. | 1.0% | 517K | $98M | ▲ 184% (+335K) | $179.65 | $252.86 (+41%) | 2026-03-31 |
| TDW Tidewater, Inc. | 0.9% | 1.1M | $90M | ▲ 13% (+124K) | $66.12 | $75.06 (+14%) | 2026-03-31 |
| APGE Apogee Therapeutics, Inc. Common Stock | 0.9% | 1.1M | $90M | ▲ 122% (+584K) | $70.51 | $134.09 (+90%) | 2026-03-31 |
| ENTG Entegris Inc | 0.9% | 755K | $88M | ▼ 28% (−293K) | $90.36 | $119.05 (+32%) | 2026-03-31 |
| MPWR Monolithic Power Systems, Inc. | 0.9% | 80K | $87M | ▼ 5.3% (−4K) | $639.30 | $1,426.03 (+123%) | 2026-03-31 |
| KEX Kirby Corporation | 0.9% | 644K | $86M | ▲ 385% (+511K) | $121.32 | $131.14 (+8%) | 2026-03-31 |
| ADC Agree Realty Corporation | 0.8% | 1.1M | $83M | ▲ 37% (+295K) | $71.13 | $77.80 (+9%) | 2026-03-31 |
| SANM Sanmina Corp | 0.8% | 637K | $83M | — | $69.27 | $185.56 (+168%) | 2026-03-31 |
| INSM Insmed, Inc. | 0.8% | 470K | $77M | ▲ 65% (+185K) | $123.06 | $98.60 (−20%) | 2026-03-31 |
| ALAB Astera Labs, Inc. Common Stock | 0.8% | 688K | $75M | ▼ 6.4% (−47K) | $166.17 | $311.23 (+87%) | 2026-03-31 |
| LBRT Liberty Energy Inc. | 0.7% | 2.5M | $72M | ▲ 1277% (+2.3M) | $28.05 | $18.71 (−33%) | 2026-03-31 |
| BBIO BridgeBio Pharma, Inc. Common Stock | 0.7% | 958K | $71M | ▲ 16% (+132K) | $45.48 | $80.09 (+76%) | 2026-03-31 |
| BLDR Builders FirstSource, Inc. | 0.7% | 860K | $71M | ▲ 49% (+284K) | $107.15 | $66.44 (−38%) | 2026-03-31 |
| BURL BURLINGTON STORES, INC. | 0.7% | 217K | $70M | ▲ 10% (+20K) | $208.59 | $368.48 (+77%) | 2026-03-31 |
| PRDO Perdoceo Education Corporation | 0.7% | 1.8M | $69M | ▼ 3.4% (−65K) | $15.96 | $31.81 (+99%) | 2026-03-31 |
| WFRD Weatherford International plc Ordinary Shares | 0.7% | 725K | $69M | ▲ 1.5% (+11K) | $68.65 | $87.79 (+28%) | 2026-03-31 |
| RCL Royal Caribbean Group | 0.7% | 238K | $66M | ▲ 10% (+22K) | $319.02 | $318.30 (−0%) | 2026-03-31 |
| LUNR Intuitive Machines, Inc. Class A Common Stock | 0.7% | 3.5M | $65M | ▲ 32% (+845K) | $14.74 | $12.34 (−16%) | 2026-03-31 |
| WTFC Wintrust Financial Corp | 0.7% | 462K | $64M | ▼ 15% (−81K) | $79.44 | $159.54 (+101%) | 2026-03-31 |
| SAIA Saia, Inc. | 0.7% | 182K | $64M | ▼ 1.2% (−2K) | $302.12 | $347.63 (+15%) | 2026-03-31 |
| SILA Sila Realty Trust, Inc. | 0.7% | 2.7M | $64M | ▲ 18% (+412K) | $24.55 | — (−4%) | 2026-03-31 |
| KYMR Kymera Therapeutics, Inc. Common Stock | 0.7% | 760K | $63M | ▲ 19% (+124K) | $56.50 | $103.40 (+83%) | 2026-03-31 |
| FBP First BanCorp. | 0.6% | 2.9M | $62M | ▼ 4.1% (−125K) | $12.37 | $28.93 (+134%) | 2026-03-31 |
| INDI indie Semiconductor, Inc. Class A Common Stock | 0.6% | 19.2M | $62M | ▲ 2.1% (+403K) | $4.78 | $3.23 (−32%) | 2026-03-31 |
| RNST Renasant Corporation | 0.6% | 1.7M | $62M | ▼ 15% (−306K) | $33.95 | $43.57 (+28%) | 2026-03-31 |
| NTRA Natera, Inc. Common Stock | 0.6% | 294K | $59M | ▼ 44% (−227K) | $110.35 | $267.76 (+143%) | 2026-03-31 |
| AR ANTERO RESOURCES CORPORATION | 0.6% | 1.3M | $57M | NEW (+1.3M) | $42.44 | $36.14 (−15%) | 2026-03-31 |
| ELAN Elanco Animal Health Incorporated Common Stock | 0.6% | 2.4M | $57M | ▼ 8.3% (−214K) | $11.63 | $26.37 (+127%) | 2026-03-31 |
| LSCC Lattice Semiconductor Corp | 0.6% | 605K | $56M | ▼ 38% (−373K) | $55.97 | $124.27 (+122%) | 2026-03-31 |
| P Everpure, Inc. | 0.6% | 945K | $56M | ▲ 7.2% (+64K) | $35.62 | $77.17 (+117%) | 2026-03-31 |
| EBC Eastern Bankshares, Inc. Common Stock | 0.6% | 2.8M | $56M | ▼ 4.1% (−121K) | $16.93 | $22.96 (+36%) | 2026-03-31 |
| SIGI Selective Insurance Group | 0.6% | 730K | $55M | ▲ 19% (+115K) | $83.05 | $94.79 (+14%) | 2026-03-31 |
| FR First Industrial Realty Trust, Inc. | 0.6% | 946K | $55M | ▼ 5.2% (−52K) | $52.97 | $65.84 (+24%) | 2026-03-31 |
| TER Teradyne, Inc. Common Stock | 0.6% | 183K | $54M | ▼ 68% (−388K) | $118.87 | $367.69 (+209%) | 2026-03-31 |
Showing top 50 of 290 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 290 disclosed U.S.-equity positions.
What is FRONTIER CAPITAL MANAGEMENT CO LLC's 3-year performance?
+116% (13F-replication, price return), +52 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.