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Latest FRONTIER CAPITAL MANAGEMENT CO LLC Stock Portfolio

$9.73Billion | No. of Holdings #291

FRONTIER CAPITAL MANAGEMENT CO LLC Performance

2026 Q1+2.74%
YTD+2.74%
2025+10.52%

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 2026-05-15, the fund reported it's updated stock portfolio. In the 13F Holdings report, FRONTIER CAPITAL MANAGEMENT CO LLC reported an equity portfolio of $9.7 Billions as of 31 Mar, 2026. <br><br> The top stock holdings of FRONTIER CAPITAL MANAGEMENT CO LLC are FTAI, DAR, UTHR. The fund has invested 2.7% of it's portfolio in FTAI AVIATION LTD and 1.6% of portfolio in DARLING INGREDIENTS INC. <br><br> The fund managers got completely rid off WEBSTER FINL CORP (WBS), UNITY SOFTWARE INC (U) and BILL HOLDINGS INC (BILL) stocks. They significantly reduced their stock positions in IONQ INC (IONQ), PARSONS CORP DEL (PSN) and SUN CTRY AIRLS HLDGS INC (SNCY). FRONTIER CAPITAL MANAGEMENT CO LLC opened new stock positions in ANTERO RESOURCES CORP (AR), GULFPORT ENERGY CORP (GPOR) and PALVELLA THERAPEUTICS INC NE. The fund showed a lot of confidence in some stocks as they added substantially to SYMBOTIC INC (SYM), LIBERTY ENERGY INC (LBRT) and STRIDE INC (LRN).
FRONTIER CAPITAL MANAGEMENT CO LLC Equity Portfolio Value
Last Reported on: 15 May, 2026
$9.73Billion
  as of May 15, 2026

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 2.74% in the last quarter. In trailing 12 months, it's portfolio return was 24.83%.
  • Performance
  • S&P 500

New Buys

Ticker$ Bought
antero resources corp57,261,600
gulfport energy corp46,957,700
palvella therapeutics inc ne46,623,500
lemonade inc42,145,000
cipher digital inc39,639,600
simmons first natl corp34,856,400
cencora inc34,256,300
alamos gold inc32,193,400
New stocks bought by FRONTIER CAPITAL MANAGEMENT CO LLC

Additions

Ticker% Inc.
symbotic inc2,069
liberty energy inc1,277
stride inc864
kirby corp384
the baldwin insurance grp in329
ryerson hldg corp304
the trade desk inc200
jazz pharmaceuticals plc183
Additions to existing portfolio by FRONTIER CAPITAL MANAGEMENT CO LLC

Reductions

Ticker% Reduced
ionq inc-97.15
parsons corp del-94.57
sun ctry airls hldgs inc-82.23
pagaya technologies ltd-81.1
hexcel corp new-71.98
coherent corp-71.12
mks inc.-70.72
teradyne inc-67.93
FRONTIER CAPITAL MANAGEMENT CO LLC reduced stake in above stock

Sold off

Ticker$ Sold
atlas energy solutions inc-15,593,500
flywire corporation-15,550,400
sweetgreen inc-7,105,580
unity software inc-46,399,200
kindercare learning companie-4,501,350
magnite inc-15,332,500
maxlinear inc-14,284,000
enovix corporation-5,917,540
FRONTIER CAPITAL MANAGEMENT CO LLC got rid off the above stocks

Sector Distribution

FRONTIER CAPITAL MANAGEMENT CO LLC has about 20.2% of it's holdings in Industrials sector.

  • Industrials
  • Technology
  • Healthcare
  • Others
  • Financial Services
  • Consumer Cyclical
  • Energy
  • Consumer Defensive
  • Real Estate
  • Basic Materials
Sector%
Industrials20.2
Technology17.8
Healthcare13.3
Others12.4
Financial Services10.3
Consumer Cyclical8.2
Energy5.4
Consumer Defensive5
Real Estate3.2
Basic Materials2.7

Market Cap. Distribution

FRONTIER CAPITAL MANAGEMENT CO LLC has about 37.9% of it's portfolio invested in the large-cap and mega-cap stocks.

  • MID-CAP
  • LARGE-CAP
  • UNALLOCATED
  • SMALL-CAP
Category%
MID-CAP43.1
LARGE-CAP37.9
UNALLOCATED12
SMALL-CAP7

Stocks belong to which Index?

About 50.5% of the stocks held by FRONTIER CAPITAL MANAGEMENT CO LLC either belong to S&P 500 or RUSSELL 2000 index.

  • Others
  • RUSSELL 2000
  • S&P 500
Index%
Others49.5
RUSSELL 200039.1
S&P 50011.4
Top 5 Winners (%)%
UCTT
ultra clean hldgs inc
109.8 %
DAR
darling ingredients inc
68.3 %
TDW
tidewater inc new
59.4 %
DOCN
digitalocean hldgs inc
57.9 %
VRT
vertiv holdings co
52.5 %
Top 5 Winners ($)$
UCTT
ultra clean hldgs inc
97.6 M
DAR
darling ingredients inc
66.9 M
FTAI
ftai aviation ltd
56.8 M
XPO
xpo inc
40.2 M
TER
teradyne inc
38.8 M
Top 5 Losers (%)%
GENI
genius sports limited
-58.8 %
oddity tech ltd
-58.8 %
EVTL
vertical aerospace ltd
-50.5 %
ACVA
acv auctions inc
-45.1 %
QDEL
quidelortho corp
-40.3 %
Top 5 Losers ($)$
MDB
mongodb inc
-45.2 M
astera labs inc
-40.4 M
ALK
alaska air group inc
-38.2 M
GENI
genius sports limited
-33.3 M
QDEL
quidelortho corp
-19.4 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 291 stocks in it's portfolio. About 15.3% of the portfolio is in top 10 stocks. MDB proved to be the most loss making stock for the portfolio. UCTT was the most profitable stock for FRONTIER CAPITAL MANAGEMENT CO LLC last quarter.

$9.73BTotal Value
324Positions
15 May, 2026Last Reported
Current holdings of Current Stock Holdings of FRONTIER CAPITAL MANAGEMENT CO LLC, last reported on 15 May, 2026. Select a row with a linked ticker to view its historical trend.
ExpandHoldingsorted ascending% PortfolioShares Held$ Value% Change
AGI
Alamos Gold Inc

Alamos Gold Inc

AGI
FRONTIER CAPITAL MANAGEMENT CO LLC's holding in Alamos Gold Inc over time
0.33%724,588
$32.19M
0.33%
new position
ALC
Alcon Ag

Alcon Ag

ALC
FRONTIER CAPITAL MANAGEMENT CO LLC's holding in Alcon Ag over time
0.12%160,996
$12.13M
0.12%
decreased 7.95 percentreduced