Latest FRONTIER CAPITAL MANAGEMENT CO LLC Stock Portfolio

FRONTIER CAPITAL MANAGEMENT CO LLC Performance:

2025 Q4: 2.91%YTD: 10.52%2024: 30.35%

Performance for 2025 Q4 is 2.91%, and YTD is 10.52%, and 2024 is 30.35%.

About FRONTIER CAPITAL MANAGEMENT CO LLC and 13F Hedge Fund Stock Holdings

FRONTIER CAPITAL MANAGEMENT CO LLC is a hedge fund based in Boston, MA. On 2026-02-17, the fund reported it's updated stock portfolio. In the 13F Holdings report, FRONTIER CAPITAL MANAGEMENT CO LLC reported an equity portfolio of $9.4 Billions as of 31 Dec, 2025.

The top stock holdings of FRONTIER CAPITAL MANAGEMENT CO LLC are FTAI, , GVA. The fund has invested 2.7% of it's portfolio in FTAI AVIATION LTD and 1.8% of portfolio in AMENTUM HOLDINGS INC.

The fund managers got completely rid off CUSHMAN WAKEFIELD PLC (CWK), DIGITALBRIDGE GROUP INC (DBRG) and COSTAR GROUP INC (CSGP) stocks. They significantly reduced their stock positions in SHOALS TECHNOLOGIES GROUP IN (SHLS), SYMBOTIC INC (SYM) and VERTIV HOLDINGS CO (VRT). FRONTIER CAPITAL MANAGEMENT CO LLC opened new stock positions in CIRCLE INTERNET GROUP INC, AKAMAI TECHNOLOGIES INC (AKAM) and LXP INDUSTRIAL TRUST (LXP). The fund showed a lot of confidence in some stocks as they added substantially to ASTERA LABS INC, BJS WHSL CLUB HLDGS INC (BJ) and JAZZ PHARMACEUTICALS PLC (JAZZ).

FRONTIER CAPITAL MANAGEMENT CO LLC Annual Return Estimates Vs S&P 500

Our best estimate is that FRONTIER CAPITAL MANAGEMENT CO LLC made a return of 2.91% in the last quarter. In trailing 12 months, it's portfolio return was 10.52%.

Performance
S&P 500

New Buys

Ticker	$ Bought
circle internet group inc	89,617,300
cushman and wakefield ltd	57,517,100
akamai technologies inc	39,878,100
lxp industrial trust	39,197,200
better home & finance holdin	28,599,400
nuvalent inc	27,206,600
mueller inds inc	24,534,100
nxp semiconductors n v	22,188,700

New stocks bought by FRONTIER CAPITAL MANAGEMENT CO LLC

Additions

Ticker	% Inc.
astera labs inc	45,687
bjs whsl club hldgs inc	2,163
jazz pharmaceuticals plc	373
selective ins group inc	270
revolution medicines inc	250
ashland inc	236
knight-swift transn hldgs in	187
credo technology group holdi	159

Additions to existing portfolio by FRONTIER CAPITAL MANAGEMENT CO LLC

Reductions

Ticker	% Reduced
shoals technologies group in	-95.71
symbotic inc	-94.15
vertiv holdings co	-93.05
applovin corp	-92.65
kyndryl hldgs inc	-89.11
agco corp	-82.76
the trade desk inc	-81.07
zeta global holdings corp	-80.95

FRONTIER CAPITAL MANAGEMENT CO LLC reduced stake in above stock

Sold off

Ticker	$ Sold
digitalbridge group inc	-75,523,700
cushman wakefield plc	-78,618,500
lxp industrial trust	-35,734,100
sm energy co	-19,899,800
fmc corp	-26,575,000
zoominfo technologies inc	-8,526,380
trex co inc	-33,037,700
costar group inc	-41,393,900

FRONTIER CAPITAL MANAGEMENT CO LLC got rid off the above stocks

Sector Distribution

FRONTIER CAPITAL MANAGEMENT CO LLC has about 22% of it's holdings in Technology sector.

Sector	%
Technology	22
Industrials	20.2
Healthcare	12.5
Others	11.9
Financial Services	10.5
Consumer Cyclical	9.3
Real Estate	3.2
Consumer Defensive	3
Energy	2.7
Basic Materials	2.5

Market Cap. Distribution

FRONTIER CAPITAL MANAGEMENT CO LLC has about 40.9% of it's portfolio invested in the large-cap and mega-cap stocks.

Category	%
LARGE-CAP	40.9
MID-CAP	39.2
UNALLOCATED	11.9
SMALL-CAP	8.1

Stocks belong to which Index?

About 48.7% of the stocks held by FRONTIER CAPITAL MANAGEMENT CO LLC either belong to S&P 500 or RUSSELL 2000 index.

Index	%
Others	51.3
RUSSELL 2000	36.2
S&P 500	12.5

Top 5 Winners (%)		%
TNDM	tandem diabetes care inc	80.8 %
ALB	albemarle corp	74.2 %
	apogee therapeutics inc	72.8 %
TTI	tetra technologies inc del	57.2 %
DYN	dyne therapeutics inc	46.6 %

Top 5 Winners ($)		$
COHR	coherent corp	67.7 M
TER	teradyne inc	55.9 M
FTAI	ftai aviation ltd	46.8 M
ATI	ati inc	46.5 M
MDB	mongodb inc	32.1 M

Top 5 Losers (%)		%
LRN	stride inc	-50.7 %
CCOI	cogent communications hldgs	-40.6 %
	kindercare learning companie	-34.8 %
SLNO	soleno therapeutics inc	-31.4 %
ATGE	adtalem global ed inc	-30.8 %

Top 5 Losers ($)		$
RBLX	roblox corp	-26.0 M
EXP	eagle matls inc	-19.6 M
ATGE	adtalem global ed inc	-18.3 M
BLDR	builders firstsource inc	-17.1 M
PRDO	perdoceo ed corp	-15.4 M

FRONTIER CAPITAL MANAGEMENT CO LLC Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of FRONTIER CAPITAL MANAGEMENT CO LLC

FRONTIER CAPITAL MANAGEMENT CO LLC has 295 stocks in it's portfolio. About 15.1% of the portfolio is in top 10 stocks. RBLX proved to be the most loss making stock for the portfolio. COHR was the most profitable stock for FRONTIER CAPITAL MANAGEMENT CO LLC last quarter.

Last Reported on: 17 Feb, 2026

Ticker	Namesorted ascending	% Portfolio	Shares Held	$ Value	Type	% Change
A	agilent technologies inc	0.17	114,743	15,613,100	reduced	-25.17

ABG	asbury automotive group inc	0.42	168,125	39,094,100	reduced	-0.98

ACHC	acadia healthcare company in	0.00	0.00	0.00	sold off	-100

ACM	aecom	0.07	65,698	6,262,990	reduced	-0.67

ACVA	acv auctions inc	0.28	3,313,410	26,573,500	added	98.35

ADC	agree rlty corp	0.62	806,232	58,072,900	reduced	-12.74

AGCO	agco corp	0.10	94,271	9,834,390	reduced	-82.76

AIR	aar corp	0.41	470,637	38,964,000	added	24.05

AIT	applied indl technologies in	0.14	51,207	13,148,400	reduced	-0.89

AKAM	akamai technologies inc	0.42	457,055	39,878,100	new

ALB	albemarle corp	0.13	84,024	11,884,300	reduced	-0.77

ALC	alcon ag	0.15	174,910	13,784,700	reduced	-39.32

ALGM	allegro microsystems inc	0.15	524,931	13,847,700	reduced	-41.4

ALGN	align technology inc	0.32	191,816	29,952,100	reduced	-41.77

ALGT	allegiant travel co	0.42	458,589	39,103,900	reduced	-12.32

ALK	alaska air group inc	1.22	2,280,770	114,723,000	added	27.49

ALNY	alnylam pharmaceuticals inc	0.21	48,859	19,428,800	reduced	-58.9

ANET	arista networks inc	0.09	62,109	8,138,140	reduced	-70.59

AON	aon plc	0.22	58,593	20,676,300	reduced	-57.98

APG	api group corp	0.24	594,195	22,733,900	reduced	-45.09