Latest FRONTIER CAPITAL MANAGEMENT CO LLC Stock Portfolio

FRONTIER CAPITAL MANAGEMENT CO LLC Performance:

2025 Q3: 6.3%YTD: 7.25%2024: 13.24%

Performance for 2025 Q3 is 6.3%, and YTD is 7.25%, and 2024 is 13.24%.

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 31-Mar-2023, the fund reported that it had an AUM (Regulated Assets under Management) of $9.3 Billions. In it's latest 13F Holdings report, FRONTIER CAPITAL MANAGEMENT CO LLC reported an equity portfolio of $11.2 Billions as of 30 Sep, 2025.

The top stock holdings of FRONTIER CAPITAL MANAGEMENT CO LLC are FTAI, EXP, TER. The fund has invested 2.7% of it's portfolio in FTAI AVIATION LTD and 2% of portfolio in EAGLE MATLS INC.

The fund managers got completely rid off MRC GLOBAL INC (MRC), PINNACLE FINL PARTNERS INC (PNFP) and PALANTIR TECHNOLOGIES INC (PLTR) stocks. They significantly reduced their stock positions in ASTERA LABS INC, BJS WHSL CLUB HLDGS INC (BJ) and CONFLUENT INC (CFLT). FRONTIER CAPITAL MANAGEMENT CO LLC opened new stock positions in ROYAL CARIBBEAN GROUP (RCL), ROCKET LAB CORP and IONQ INC (IONQ). The fund showed a lot of confidence in some stocks as they added substantially to COGNEX CORP (CGNX), AXSOME THERAPEUTICS INC (AXSM) and ENOVIX CORPORATION (ENVX).

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 6.3% in the last quarter. In trailing 12 months, it's portfolio return was 7.68%.

New Buys

Ticker	$ Bought
royal caribbean group	114,512,000
rocket lab corp	39,774,700
ionq inc	38,639,100
aar corp	34,019,700
allegiant travel co	31,784,100
fb finl corp	26,391,200
floor & decor hldgs inc	26,245,300
triumph financial inc	24,478,500

New stocks bought by FRONTIER CAPITAL MANAGEMENT CO LLC

Additions

Ticker	% Inc.
cognex corp	645
axsome therapeutics inc	338
enovix corporation	323
avantor inc	289
transmedics group inc	199
genius sports limited	143
teradyne inc	141
saia inc	132

Additions to existing portfolio by FRONTIER CAPITAL MANAGEMENT CO LLC

Reductions

Ticker	% Reduced
astera labs inc	-99.28
bjs whsl club hldgs inc	-96.99
confluent inc	-96.03
bright horizons fam sol in d	-89.34
evolus inc	-83.75
inspire med sys inc	-76.59
procept biorobotics corp	-74.81
twilio inc	-73.9

FRONTIER CAPITAL MANAGEMENT CO LLC reduced stake in above stock

Sold off

Ticker	$ Sold
mrc global inc	-61,052,800
hecla mng co	-12,157,400
integral ad science hldng co	-6,836,160
viking therapeutics inc	-16,912,400
pinnacle finl partners inc	-58,405,400
aspen aerogels inc	-3,011,220
curbline pptys corp	-11,528,000
faro technologies inc	-17,760,700

FRONTIER CAPITAL MANAGEMENT CO LLC got rid off the above stocks

Sector Distribution

FRONTIER CAPITAL MANAGEMENT CO LLC has about 26.8% of it's holdings in Technology sector.

Sector	%
Technology	26.8
Industrials	20.7
Financial Services	10
Consumer Cyclical	9.9
Healthcare	9.6
Others	6.3
Real Estate	4.7
Consumer Defensive	3.2
Energy	3
Basic Materials	2.8
Communication Services	1.3
Utilities	1.2

Market Cap. Distribution

FRONTIER CAPITAL MANAGEMENT CO LLC has about 41% of it's portfolio invested in the large-cap and mega-cap stocks.

Category	%
MID-CAP	44.3
LARGE-CAP	41
SMALL-CAP	7.8
UNALLOCATED	6.6

Stocks belong to which Index?

About 47.7% of the stocks held by FRONTIER CAPITAL MANAGEMENT CO LLC either belong to S&P 500 or RUSSELL 2000 index.

Index	%
Others	52.4
RUSSELL 2000	31.1
S&P 500	16.6

Top 5 Winners (%)		%
PL	planet labs pbc	105.5 %
APP	applovin corp	96.2 %
TTI	tetra technologies inc del	68.0 %
MP	mp materials corp	66.8 %
KTOS	kratos defense & sec solutio	65.9 %

Top 5 Winners ($)		$
FTAI	ftai aviation ltd	102.8 M
APP	applovin corp	58.1 M
TER	teradyne inc	48.1 M
MDB	mongodb inc	32.8 M
U	unity software inc	31.1 M

Top 5 Losers (%)		%
SG	sweetgreen inc	-45.5 %
ACVA	acv auctions inc	-36.5 %
TNDM	tandem diabetes care inc	-33.4 %
ALGN	align technology inc	-30.1 %
APG	api group corp	-29.5 %

Top 5 Losers ($)		$
INSP	inspire med sys inc	-23.8 M
DAR	darling ingredients inc	-21.8 M
MAT	mattel inc	-20.2 M
ALGN	align technology inc	-17.7 M
DXCM	dexcom inc	-16.2 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 297 stocks in it's portfolio. About 15.6% of the portfolio is in top 10 stocks. INSP proved to be the most loss making stock for the portfolio. FTAI was the most profitable stock for FRONTIER CAPITAL MANAGEMENT CO LLC last quarter.

Last Reported on: 14 Nov, 2025

Ticker	Namesorted ascending	% Portfolio	Shares Held	$ Value	Type	% Change
A	agilent technologies inc	0.18	153,335	19,680,500	reduced	-24.89

ABG	asbury automotive group inc	0.37	169,786	41,504,200	added	9.18

ACHC	acadia healthcare company in	0.04	183,959	4,554,810	added	17.95

ACM	aecom	0.08	66,139	8,629,140	reduced	-2.89

ACVA	acv auctions inc	0.15	1,670,480	16,554,500	reduced	-12.34

ADC	agree rlty corp	0.59	923,976	65,639,300	reduced	-10.92

AGCO	agco corp	0.52	546,739	58,539,300	added	46.37

AIR	aar corp	0.30	379,388	34,019,700	new

AIT	applied indl technologies in	0.12	51,665	13,487,100	reduced	-6.17

ALB	albemarle corp	0.06	84,679	6,865,740	reduced	-2.91

ALGM	allegro microsystems inc	0.23	895,797	26,157,300	reduced	-62.14

ALGN	align technology inc	0.37	329,420	41,250,000	added	47.05

ALGT	allegiant travel co	0.28	523,023	31,784,100	new

ALK	alaska air group inc	0.80	1,789,020	89,057,400	added	77.25

ALNY	alnylam pharmaceuticals inc	0.49	118,878	54,208,400	added	15.41

ANET	arista networks inc	0.28	211,168	30,769,300	reduced	-2.87

AON	aon plc	0.45	139,453	49,726,200	reduced	-25.36

APG	api group corp	0.33	1,082,210	37,195,400	added	38.71

APH	amphenol corp new	0.55	495,116	61,270,600	reduced	-2.13

APP	applovin corp	0.92	142,788	102,599,000	reduced	-17.18