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Institutional Investment Manager
DF DENT & CO INC
DF DENT & CO INC (CIK: 0000934999) incorporated in Maryland, located at 400 East Pratt Street, Baltimore, MD. Institutional holdings reported to the SEC.

Institutional Holdings (2014Q1)
Original 13F HR (0000934999-14-000005) filed in 2014.04.16
#
Name
Shares
Value ($)
%
Options
Notes
1 FASTENAL CO 5,487,575 270,537 6.32%
2 ANSYS 2,180,440 167,937 3.92%
3 TRIMBLE INC 4,168,399 162,026 3.79%
4 QUALCOMM INC 1,835,099 144,716 3.38%
5 MARKEL CORP 234,596 139,843 3.27%
6 SCHLUMBERGER LTD 1,334,803 130,143 3.04%
7 LKQ CORP 4,820,223 127,013 2.97%
8 STERICYCLE INC 1,088,224 123,644 2.89%
9 SEI INVESTMENTS CO 3,642,796 122,434 2.86%
10 ECOLAB INC 1,102,159 119,022 2.78%
11 VISA INC 536,814 115,877 2.71%
12 CONCHO RESOURCES 940,544 115,217 2.69%
13 RED HAT INC 2,136,436 113,188 2.64%
14 WASTE CONNECTIONS INC COM 2,540,377 111,421 2.60%
15 MOODYS CORP 1,397,269 110,831 2.59%
16 WAGEWORKS INC COM 1,756,962 98,583 2.30%
17 ROPER TECHNOLOGIES INC 723,028 96,531 2.26%
18 DISCOVER FINL SVCS 1,613,700 93,901 2.19%
19 COSTAR GROUP INC 499,945 93,360 2.18%
20 JACOBS ENGR GROUP INC 1,469,504 93,314 2.18%
21 CONCUR TECHNOLOGIE 907,362 89,892 2.10%
22 CELGENE CORP 620,605 86,636 2.02%
23 EXPEDITORS INTL WASH INC 2,128,973 84,371 1.97%
24 VERISK ANALYTICS INC 1,394,238 83,599 1.95%
25 Signet Jewelers Ltd. 772,552 81,782 1.91%
26 3-D SYS CORP DEL 1,376,571 81,424 1.90%
27 AMERICAN TOWER CORP NEW 958,018 78,433 1.83%
28 SOUTHWESTERN ENERGY CO 1,628,200 74,913 1.75%
29 DEALERTRACK TECHNOLOGIES INC 1,461,095 71,871 1.68%
30 CORE LABORATORIES N V 356,460 70,736 1.65%
31 CLEAN HARBORS INC 1,262,457 69,170 1.62%
32 HEALTHCARE SVCS GRP INC 2,299,736 66,830 1.56%
33 EXAMWORKS 1,896,516 66,397 1.55%
34 RANGE RES CORP 677,777 56,235 1.31%
35 Intuitive Surgical Inc 117,760 51,578 1.21%
36 CareFusion 1,114,080 44,808 1.05%
37 TYLER TECHNOLOGIES INC 531,999 44,518 1.04%
38 EXPONENT INC 556,937 41,804 0.98%
39 FINANCIAL ENGINES INC 813,253 41,297 0.96%
40 CARMAX INC 757,852 35,467 0.83%
41 PRICESMART INC 334,316 33,743 0.79%
42 ILLUMINA INC 199,590 29,671 0.69%
43 POTASH CORP SASK INC 795,825 28,825 0.67%
44 PANERA BREAD CO 157,119 27,727 0.65%
45 CARTERS INC 327,172 25,405 0.59%
46 PROCTER AND GAMBLE CO 294,887 23,768 0.56%
47 PRICE T ROWE GROUP INC 280,851 23,128 0.54%
48 LIQUIDITY SERVICES INC 729,028 18,991 0.44%
49 O REILLY AUTOMOTIVE INC NEW 109,766 16,288 0.38%
50 TANGOE INC COM DELETED 832,354 15,473 0.36%
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