FRONTIER CAPITAL MANAGEMENT CO LLC

CIK
351173
City
Boston
State / Country
MA

Top Portfolio Positions

291 positions · $9,729,472,588 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio
FTAI
FTAI Aviation Ltd.
Industrials
1,062,210 $260,241,450 2.67%
DAR
Darling Ingredients Inc.
Consumer Defensive
2,455,668 $151,883,065 1.56%
UTHR
UNITED THERAPEUTICS Corp
Healthcare
252,702 $149,847,231 1.54%
CRCL
Circle Internet Group, Inc.
Financial Services
1,548,150 $147,708,991 1.52%
GVA
Granite Construction Inc
Industrials
1,187,736 $142,385,791 1.46%
LRN
Stride, Inc.
Consumer Defensive
1,549,291 $136,600,987 1.40%
AMTM
Amentum Holdings, Inc.
Industrials
4,930,210 $128,579,876 1.32%
XPO
XPO, Inc.
Industrials
652,073 $126,860,802 1.30%
ALK
Alaska Air Group, Inc.
Industrials
3,373,587 $124,080,529 1.28%
KNX
Knight-Swift Transportation Holdings Inc.
Industrials
2,086,544 $120,143,203 1.23%

Portfolio Trend

25 quarters · across all stocks

Holdings in ATI

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Shares Held

Position Value (USD)

25 of 25 shown
Report Date Value (USD) Shares
2026-03-31 $101,010,624 694,422
2025-12-31 $140,862,506 1,227,453
2025-09-30 $126,447,991 1,554,561
2025-06-30 $192,169,010 2,225,724
2025-03-31 $135,395,483 2,602,258
2024-12-31 $168,342,647 3,058,551
2024-09-30 $208,840,228 3,121,211
2024-06-30 $173,682,652 3,132,239
2024-03-31 $170,873,567 3,339,331
2023-12-31 $165,767,432 3,645,644
2023-09-30 $125,548,650 3,051,000
2023-06-30 $154,521,662 3,493,594
2023-03-31 $141,865,250 3,595,166
2022-12-31 $105,949,431 3,548,206
2022-09-30 $39,461,618 1,482,962
2022-06-30 $24,174,681 1,064,495
2022-03-31 $49,215,944 1,833,679
2021-12-31 $29,559,325 1,855,576
2021-09-30 $23,433,698 1,409,122
2021-06-30 $41,704,941 2,000,237
2021-03-31 $20,784,261 986,907
2020-12-31 $6,289,387 375,038
2020-09-30 $3,708,354 425,270
2020-06-30 $4,695,969 460,841
2020-03-31 $25,495,571 2,999,479