FRONTIER CAPITAL MANAGEMENT CO LLC Information

99 SUMMER STREET, BOSTON, Massachusetts, 02110,

Report Date: 06/30/2015

Position Statistics

Total Positions 383
New Positions 22
Increased Positions 209
Decreased Positions 144
Positions with Activity 353
Sold Out Positions 22
Total Mkt Value (in $ millions) 13,663

Institutional Holdings information is filed by major institutions on form 13-F with the Securities and Exchange Commission.

Sector Weighting

Basic Materials 4.62%
Capital Goods 5.49%
Conglomerates
Consumer Cyclical 6.12%
Consumer/Non-Cyclical 2.07%
Energy 2.43%
Financial 15.01%
Healthcare 12.47%
Services 13.33%
Technology 25.95%
Transportation 4.29%
Utilities 1.13%

353 Activity Positions as of 06/30/2015

Company ▲ Class Value of Shares ($1,000s) Change in Value ($1,000s) Change (%) Shares Held
2U INC COM 74,943 -9,506 (11.26) 2,364,884
3-D SYS CORP DEL COM NEW 20,078 -4,227 (17.39) 1,627,079
ACE LIMITED SHS -1,869 Sold Out 0
ACTIVISION BLIZZARD INC COM 53,180 50,721 2,063.35 2,083,842
ACTUANT CORP CL A NEW 42 13 46.43 1,848
ADTRAN INC COM 2,930 9 .29 178,784
ADVANCE AUTO PARTS INC COM -65,606 Sold Out 0
ADVISORY BRD CO COM 35,406 -379 (1.06) 596,469
AGNICO EAGLE MINES LTD COM 11,502 33 .29 543,586
AKAMAI TECHNOLOGIES INC COM 121,320 3,049 2.58 1,601,584
ALBEMARLE CORP COM 12,902 38 .30 242,113
ALKERMES PLC SHS 100,077 -49,697 (33.18) 1,422,957
ALLEGHENY TECHNOLOGIES INC COM 15,430 45 .29 742,550
ALLERGAN PLC SHS 4,278 -289 (6.33) 12,773
ALLIANCE DATA SYSTEMS CORP COM 110,668 12,827 13.11 404,786
ALLIED WRLD ASSUR COM HLDG AG SHS 113,121 10,507 10.24 2,662,927
ALLSCRIPTS HEALTHCARE SOLUTNS COM 28,889 670 2.38 2,018,064
ALTERA CORP COM 15,511 49 .32 311,223
ALTRA INDL MOTION CORP COM 10,243 924 9.92 409,894
AMAG PHARMACEUTICALS INC COM -31,973 Sold Out 0