Filed: 8/14/2025ACC: 0001172661-25-003311
📋 What this filing means
FRONTIER CAPITAL MANAGEMENT CO LLC filed this quarterly 13F‑HR report disclosing 294 equity positions with a total reported market value of $10.80B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
294
Positions
$10.80B
Total AUM (reported)
241.26M
Total Shares
Allocation by class
COM$7.54B69.8%
CL A$804.57M7.4%
COM CL A$437.55M4.1%
COM NEW$429.77M4.0%
SHS$316.90M2.9%
COMMON STOCK$245.83M2.3%
CL A COM$170.63M1.6%
Portfolio Concentration
Top 3$615.98M5.7%
4–10$933.90M8.6%
11–25$1.34B12.4%
Rest$7.91B73.3%
Top 3 weight
5.7%
Top 10 weight
14.3%
Voting Authority Distribution
Total shares with voting rights: 241.26M
Sole
Full voting authority
155.89M
shares
% of voting shares64.6%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
85.37M
shares
% of voting shares35.4%
Investment Discretion (by position count)
Sole294
Shared0
Other0
Dominant voting typeSole · 64.6% of voting shares
Institutional Holdings294
Rows:
FTAI AVIATION LTD
SOLEShares2.14M
TypeSH
Market value$246.72M
2.28%
Sole
1.56M
Shared
0.00
None
588.08K
ATI INC
SOLEShares2.23M
TypeSH
Market value$192.17M
1.78%
Sole
1.64M
Shared
0.00
None
590.45K
MATTEL INC
SOLEShares8.98M
TypeSH
Market value$177.09M
1.64%
Sole
6.26M
Shared
0.00
None
2.72M
EAGLE MATLS INC
SOLEShares830.28K
TypeSH
Market value$167.81M
1.55%
Sole
571.95K
Shared
0.00
None
258.33K
XPO INC
SOLEShares1.13M
TypeSH
Market value$143.20M
1.33%
Sole
1.09M
Shared
0.00
None
47.89K
AMENTUM HOLDINGS INC
SOLEShares5.46M
TypeSH
Market value$128.93M
1.19%
Sole
2.98M
Shared
0.00
None
2.48M
GRANITE CONSTR INC
SOLEShares1.37M
TypeSH
Market value$128.11M
1.19%
Sole
816.29K
Shared
0.00
None
553.74K
DARLING INGREDIENTS INC
SOLEShares3.32M
TypeSH
Market value$126.09M
1.17%
Sole
1.75M
Shared
0.00
None
1.57M
SANMINA CORPORATION
SOLEShares1.23M
TypeSH
Market value$120.52M
1.12%
Sole
682.69K
Shared
0.00
None
549.19K
POPULAR INC
SOLEShares1.08M
TypeSH
Market value$119.25M
1.10%
Sole
650.07K
Shared
0.00
None
431.94K
CHENIERE ENERGY INC
SOLEShares417.02K
TypeSH
Market value$101.55M
0.94%
Sole
417.02K
Shared
0.00
None
0.00
MONOLITHIC PWR SYS INC
SOLEShares132.84K
TypeSH
Market value$97.16M
0.90%
Sole
112.88K
Shared
0.00
None
19.96K
CARLYLE GROUP INC
SOLEShares1.89M
TypeSH
Market value$97.00M
0.90%
Sole
1.36M
Shared
0.00
None
526.92K
SILICON MOTION TECHNOLOGY CO
SOLEShares1.28M
TypeSH
Market value$96.30M
0.89%
Sole
552.30K
Shared
0.00
None
728.82K
DOLBY LABORATORIES INC
SOLEShares1.24M
TypeSH
Market value$91.91M
0.85%
Sole
831.59K
Shared
0.00
None
406.07K
TWILIO INC
SOLEShares731.19K
TypeSH
Market value$90.93M
0.84%
Sole
731.19K
Shared
0.00
None
0.00
MKS INC.
SOLEShares912.38K
TypeSH
Market value$90.65M
0.84%
Sole
492.12K
Shared
0.00
None
420.26K
CARPENTER TECHNOLOGY CORP
SOLEShares325.96K
TypeSH
Market value$90.09M
0.83%
Sole
184.09K
Shared
0.00
None
141.87K
INSPIRE MED SYS INC
SOLEShares693.20K
TypeSH
Market value$89.96M
0.83%
Sole
482.44K
Shared
0.00
None
210.77K
VERTIV HOLDINGS CO
SOLEShares690.70K
TypeSH
Market value$88.69M
0.82%
Sole
649.41K
Shared
0.00
None
41.29K
BLOCK INC
SOLEShares1.30M
TypeSH
Market value$88.08M
0.82%
Sole
1.30M
Shared
0.00
None
0.00
DEXCOM INC
SOLEShares932.37K
TypeSH
Market value$81.39M
0.75%
Sole
932.37K
Shared
0.00
None
0.00
ALLEGRO MICROSYSTEMS INC
SOLEShares2.37M
TypeSH
Market value$80.89M
0.75%
Sole
2.10M
Shared
0.00
None
262.97K
MONGODB INC
SOLEShares369.29K
TypeSH
Market value$77.55M
0.72%
Sole
251.76K
Shared
0.00
None
117.53K
KNIGHT-SWIFT TRANSN HLDGS IN
SOLEShares1.73M
TypeSH
Market value$76.33M
0.71%
Sole
1.13M
Shared
0.00
None
596.91K
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
FTAI AVIATION LTDSOLE | SHS | 2.14M | SH | $246.72M 2.28% | 1.56M | 0.00 | 588.08K |
ATI INCSOLE | COM | 2.23M | SH | $192.17M 1.78% | 1.64M | 0.00 | 590.45K |
MATTEL INCSOLE | COM | 8.98M | SH | $177.09M 1.64% | 6.26M | 0.00 | 2.72M |
EAGLE MATLS INCSOLE | COM | 830.28K | SH | $167.81M 1.55% | 571.95K | 0.00 | 258.33K |
XPO INCSOLE | COM | 1.13M | SH | $143.20M 1.33% | 1.09M | 0.00 | 47.89K |
AMENTUM HOLDINGS INCSOLE | COM | 5.46M | SH | $128.93M 1.19% | 2.98M | 0.00 | 2.48M |
GRANITE CONSTR INCSOLE | COM | 1.37M | SH | $128.11M 1.19% | 816.29K | 0.00 | 553.74K |
DARLING INGREDIENTS INCSOLE | COM | 3.32M | SH | $126.09M 1.17% | 1.75M | 0.00 | 1.57M |
SANMINA CORPORATIONSOLE | COM | 1.23M | SH | $120.52M 1.12% | 682.69K | 0.00 | 549.19K |
POPULAR INCSOLE | COM NEW | 1.08M | SH | $119.25M 1.10% | 650.07K | 0.00 | 431.94K |
CHENIERE ENERGY INCSOLE | COM NEW | 417.02K | SH | $101.55M 0.94% | 417.02K | 0.00 | 0.00 |
MONOLITHIC PWR SYS INCSOLE | COM | 132.84K | SH | $97.16M 0.90% | 112.88K | 0.00 | 19.96K |
CARLYLE GROUP INCSOLE | COM | 1.89M | SH | $97.00M 0.90% | 1.36M | 0.00 | 526.92K |
SILICON MOTION TECHNOLOGY COSOLE | SPONSORED ADR | 1.28M | SH | $96.30M 0.89% | 552.30K | 0.00 | 728.82K |
DOLBY LABORATORIES INCSOLE | COM CL A | 1.24M | SH | $91.91M 0.85% | 831.59K | 0.00 | 406.07K |
TWILIO INCSOLE | CL A | 731.19K | SH | $90.93M 0.84% | 731.19K | 0.00 | 0.00 |
MKS INC.SOLE | COM | 912.38K | SH | $90.65M 0.84% | 492.12K | 0.00 | 420.26K |
CARPENTER TECHNOLOGY CORPSOLE | COM | 325.96K | SH | $90.09M 0.83% | 184.09K | 0.00 | 141.87K |
INSPIRE MED SYS INCSOLE | COM | 693.20K | SH | $89.96M 0.83% | 482.44K | 0.00 | 210.77K |
VERTIV HOLDINGS COSOLE | COM CL A | 690.70K | SH | $88.69M 0.82% | 649.41K | 0.00 | 41.29K |
BLOCK INCSOLE | CL A | 1.30M | SH | $88.08M 0.82% | 1.30M | 0.00 | 0.00 |
DEXCOM INCSOLE | COM | 932.37K | SH | $81.39M 0.75% | 932.37K | 0.00 | 0.00 |
ALLEGRO MICROSYSTEMS INCSOLE | COM | 2.37M | SH | $80.89M 0.75% | 2.10M | 0.00 | 262.97K |
MONGODB INCSOLE | CL A | 369.29K | SH | $77.55M 0.72% | 251.76K | 0.00 | 117.53K |
KNIGHT-SWIFT TRANSN HLDGS INSOLE | CL A | 1.73M | SH | $76.33M 0.71% | 1.13M | 0.00 | 596.91K |
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