FRONTIER CAPITAL MANAGEMENT CO LLC
CIK 351173 · Holdings on Dec 31, 2025 · First reported Feb 17, 2026
Top ten holdings
Q4 2025- FTAI2.71%
- AMTM1.78%
- GVA1.54%
- ATI1.49%
- MDB1.35%
- ALAB1.30%
- NTRA1.27%
- BPOP1.26%
- ALK1.22%
- EXP1.20%
Share classes counted separately15.12%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- ALABWeight increased · +1.30 pp0.00% → 1.30%Shares +733.74K (+45687.11%)
- KNXWeight increased · +0.84 pp0.24% → 1.08%Shares +1.27M (+187.13%)
- EXPWeight decreased · -0.77 pp1.97% → 1.20%Shares -398.33K (-42.21%)
Weight = security value ÷ total reported holdings value. Changes are in percentage points; price moves also affect weights, so they are not trade sizes.
Top 10 holdings 30
USD · B = billion · M = million; expand a row for exact values| # | Security | Value | Weight | Quantity | Weight / quantity change | Activity | |
|---|---|---|---|---|---|---|---|
| 01 | FTAIFTAI AVIATION LTDSHS View history and evidence | $255.23M | 2.71% | 1.30M shares | 2.73% → 2.71%-0.02 pp -526.18K (-28.87%) | Reduced | ↗▾ |
| 02 | AMTMAMENTUM HOLDINGS INC View history and evidence | $167.42M | 1.78% | 5.77M shares | 1.12% → 1.78%+0.66 pp +570.30K (+10.96%) | Added | ↗▾ |
| 03 | GVAGRANITE CONSTRUCTION INC View history and evidence | $145.10M | 1.54% | 1.26M shares | 1.27% → 1.54%+0.27 pp -39.11K (-3.02%) | Reduced | ↗▾ |
| 04 | ATIATI INC View history and evidence | $140.86M | 1.49% | 1.23M shares | 1.13% → 1.49%+0.36 pp -327.11K (-21.04%) | Reduced | ↗▾ |
| 05 | MDBMONGODB INCCL A View history and evidence | $126.79M | 1.35% | 302.09K shares | 0.79% → 1.35%+0.56 pp +17.39K (+6.11%) | Added | ↗▾ |
| 06 | ALABASTERA LABS INC View history and evidence | $122.33M | 1.30% | 735.34K shares | 0.00% → 1.30%+1.30 pp +733.74K (+45687.11%) | Added | ↗▾ |
| 07 | NTRANATERA INC View history and evidence | $119.53M | 1.27% | 521.75K shares | 0.53% → 1.27%+0.74 pp +152.74K (+41.39%) | Added | ↗▾ |
| 08 | BPOPPOPULAR INCCOM NEW View history and evidence | $118.82M | 1.26% | 954.23K shares | 1.23% → 1.26%+0.03 pp -122.04K (-11.34%) | Reduced | ↗▾ |
| 09 | ALKALASKA AIR GROUP INC View history and evidence | $114.72M | 1.22% | 2.28M shares | 0.80% → 1.22%+0.42 pp +491.75K (+27.49%) | Added | ↗▾ |
| 10 | EXPEAGLE MATERIALS INC View history and evidence | $112.71M | 1.20% | 545.35K shares | 1.97% → 1.20%-0.77 pp -398.33K (-42.21%) | Reduced | ↗▾ |
Options overlay 0
No options reported this quarter.
Exited positions 26
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| G2717B108 CUSHMAN WAKEFIELD PLC | Non-derivative | -4,938,347 | -$78.62M | SEC filing ↗ | SEC filing ↗ |
| DBRG DIGITALBRIDGE GROUP INC | Non-derivative | -6,455,013 | -$75.52M | SEC filing ↗ | SEC filing ↗ |
| CSGP COSTAR GROUP INC | Non-derivative | -490,623 | -$41.39M | SEC filing ↗ | SEC filing ↗ |
3 / 26 preview exits. Up to 30 exit records are previewed. Exit means absent from the current filing; execution date, price and proceeds are unknown.
Every number has a source.
CIK 351173 · Period 2025-12-31
Data loaded 2026-09-23 · First reported 2026-02-17
Amendments and versions
{
"amendments_merged": null,
"prior_versions": null,
"cover_table_value": 9423596169
}Research all 295 reported holdings.
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