Filed: 8/14/2026ACC: 0001172661-26-003509
📋 What this filing means
FRONTIER CAPITAL MANAGEMENT CO LLC filed this quarterly 13F‑HR report disclosing 300 equity positions with a total reported market value of $10.73B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
300
Positions
$10.73B
Total AUM (reported)
221.34M
Total Shares
Allocation by class
COM$7.55B70.4%
CL A$542.77M5.1%
COM NEW$424.14M4.0%
SHS$404.25M3.8%
COM CL A$387.54M3.6%
CLASS A COM$230.76M2.2%
COMMON STOCK$175.45M1.6%
Portfolio Concentration
Top 3$673.72M6.3%
4–10$879.69M8.2%
11–25$1.45B13.5%
Rest$7.72B72.0%
Top 3 weight
6.3%
Top 10 weight
14.5%
Voting Authority Distribution
Total shares with voting rights: 221.34M
Sole
Full voting authority
120.45M
shares
% of voting shares54.4%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
100.89M
shares
% of voting shares45.6%
Investment Discretion (by position count)
Sole300
Shared0
Other0
Dominant voting typeSole · 54.4% of voting shares
Institutional Holdings300
Rows:
FTAI AVIATION LTD
SOLEShares1.18M
TypeSH
Market value$320.17M
2.98%
Sole
682.91K
Shared
0.00
None
500.58K
GRANITE CONSTR INC
SOLEShares1.12M
TypeSH
Market value$176.87M
1.65%
Sole
546.51K
Shared
0.00
None
572.37K
ALASKA AIR GROUP INC
SOLEShares3.38M
TypeSH
Market value$176.68M
1.65%
Sole
1.48M
Shared
0.00
None
1.90M
APPLIED OPTOELECTRONICS INC
SOLEShares975.32K
TypeSH
Market value$144.50M
1.35%
Sole
414.46K
Shared
0.00
None
560.85K
AKAMAI TECHNOLOGIES INC
SOLEShares1.14M
TypeSH
Market value$134.35M
1.25%
Sole
633.71K
Shared
0.00
None
502.87K
ASHLAND INC
SOLEShares2M
TypeSH
Market value$131.77M
1.23%
Sole
927.17K
Shared
0.00
None
1.07M
LATTICE SEMICONDUCTOR CORP
SOLEShares821.85K
TypeSH
Market value$125.71M
1.17%
Sole
512.19K
Shared
0.00
None
309.66K
POPULAR INC
SOLEShares725.23K
TypeSH
Market value$119.07M
1.11%
Sole
448.12K
Shared
0.00
None
277.11K
MONGODB INC
SOLEShares334.10K
TypeSH
Market value$112.22M
1.05%
Sole
208.56K
Shared
0.00
None
125.54K
UNITED THERAPEUTICS CORP DEL
SOLEShares206.81K
TypeSH
Market value$112.05M
1.04%
Sole
128.53K
Shared
0.00
None
78.28K
KNIGHT-SWIFT TRANSN HLDGS IN
SOLEShares1.41M
TypeSH
Market value$109.87M
1.02%
Sole
981.13K
Shared
0.00
None
429.82K
EAGLE MATLS INC
SOLEShares458.62K
TypeSH
Market value$103.19M
0.96%
Sole
318.51K
Shared
0.00
None
140.11K
STRIDE INC
SOLEShares1.19M
TypeSH
Market value$102.77M
0.96%
Sole
760.19K
Shared
0.00
None
431.52K
XPO INC
SOLEShares499.60K
TypeSH
Market value$102.56M
0.96%
Sole
456.45K
Shared
0.00
None
43.15K
BRIDGEBIO PHARMA INC
SOLEShares1.37M
TypeSH
Market value$102.27M
0.95%
Sole
707.36K
Shared
0.00
None
665.70K
LIBERTY ENERGY INC
SOLEShares3.72M
TypeSH
Market value$97.44M
0.91%
Sole
1.63M
Shared
0.00
None
2.09M
SANMINA CORP
SOLEShares378.11K
TypeSH
Market value$95.69M
0.89%
Sole
213.67K
Shared
0.00
None
164.44K
ULTRA CLEAN HLDGS INC
SOLEShares667.53K
TypeSH
Market value$95.18M
0.89%
Sole
360.76K
Shared
0.00
None
306.77K
ULTRAGENYX PHARMACEUTICAL IN
SOLEShares2.85M
TypeSH
Market value$95.09M
0.89%
Sole
1.30M
Shared
0.00
None
1.54M
INSULET CORP
SOLEShares622.51K
TypeSH
Market value$94.78M
0.88%
Sole
297.60K
Shared
0.00
None
324.91K
MODINE MFG CO
SOLEShares343.87K
TypeSH
Market value$91.82M
0.86%
Sole
173.38K
Shared
0.00
None
170.49K
FLOWSERVE CORP
SOLEShares1.23M
TypeSH
Market value$91.46M
0.85%
Sole
654.55K
Shared
0.00
None
578.74K
KIRBY CORP
SOLEShares666.55K
TypeSH
Market value$90.63M
0.84%
Sole
334.65K
Shared
0.00
None
331.90K
ALLEGIANT TRAVEL CO
SOLEShares765.35K
TypeSH
Market value$90.00M
0.84%
Sole
345.74K
Shared
0.00
None
419.61K
EVERPURE INC
SOLEShares1.12M
TypeSH
Market value$88.25M
0.82%
Sole
672.90K
Shared
0.00
None
447.13K
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
FTAI AVIATION LTDSOLE | SHS | 1.18M | SH | $320.17M 2.98% | 682.91K | 0.00 | 500.58K |
GRANITE CONSTR INCSOLE | COM | 1.12M | SH | $176.87M 1.65% | 546.51K | 0.00 | 572.37K |
ALASKA AIR GROUP INCSOLE | COM | 3.38M | SH | $176.68M 1.65% | 1.48M | 0.00 | 1.90M |
APPLIED OPTOELECTRONICS INCSOLE | COM | 975.32K | SH | $144.50M 1.35% | 414.46K | 0.00 | 560.85K |
AKAMAI TECHNOLOGIES INCSOLE | COM | 1.14M | SH | $134.35M 1.25% | 633.71K | 0.00 | 502.87K |
ASHLAND INCSOLE | COM | 2M | SH | $131.77M 1.23% | 927.17K | 0.00 | 1.07M |
LATTICE SEMICONDUCTOR CORPSOLE | COM | 821.85K | SH | $125.71M 1.17% | 512.19K | 0.00 | 309.66K |
POPULAR INCSOLE | COM NEW | 725.23K | SH | $119.07M 1.11% | 448.12K | 0.00 | 277.11K |
MONGODB INCSOLE | CL A | 334.10K | SH | $112.22M 1.05% | 208.56K | 0.00 | 125.54K |
UNITED THERAPEUTICS CORP DELSOLE | COM | 206.81K | SH | $112.05M 1.04% | 128.53K | 0.00 | 78.28K |
KNIGHT-SWIFT TRANSN HLDGS INSOLE | CL A | 1.41M | SH | $109.87M 1.02% | 981.13K | 0.00 | 429.82K |
EAGLE MATLS INCSOLE | COM | 458.62K | SH | $103.19M 0.96% | 318.51K | 0.00 | 140.11K |
STRIDE INCSOLE | COM | 1.19M | SH | $102.77M 0.96% | 760.19K | 0.00 | 431.52K |
XPO INCSOLE | COM | 499.60K | SH | $102.56M 0.96% | 456.45K | 0.00 | 43.15K |
BRIDGEBIO PHARMA INCSOLE | COM | 1.37M | SH | $102.27M 0.95% | 707.36K | 0.00 | 665.70K |
LIBERTY ENERGY INCSOLE | COM CL A | 3.72M | SH | $97.44M 0.91% | 1.63M | 0.00 | 2.09M |
SANMINA CORPSOLE | COM | 378.11K | SH | $95.69M 0.89% | 213.67K | 0.00 | 164.44K |
ULTRA CLEAN HLDGS INCSOLE | COM | 667.53K | SH | $95.18M 0.89% | 360.76K | 0.00 | 306.77K |
ULTRAGENYX PHARMACEUTICAL INSOLE | COM | 2.85M | SH | $95.09M 0.89% | 1.30M | 0.00 | 1.54M |
INSULET CORPSOLE | COM | 622.51K | SH | $94.78M 0.88% | 297.60K | 0.00 | 324.91K |
MODINE MFG COSOLE | COM | 343.87K | SH | $91.82M 0.86% | 173.38K | 0.00 | 170.49K |
FLOWSERVE CORPSOLE | COM | 1.23M | SH | $91.46M 0.85% | 654.55K | 0.00 | 578.74K |
KIRBY CORPSOLE | COM | 666.55K | SH | $90.63M 0.84% | 334.65K | 0.00 | 331.90K |
ALLEGIANT TRAVEL COSOLE | COM | 765.35K | SH | $90.00M 0.84% | 345.74K | 0.00 | 419.61K |
EVERPURE INCSOLE | CL A | 1.12M | SH | $88.25M 0.82% | 672.90K | 0.00 | 447.13K |
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