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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 (2014Q2)
Original 13F HR (0000934999-14-000009) filed in 2014.07.08
#
Name
Shares
Value ($)
%
Options
Notes
1 FASTENAL CO 5,424,147 268,441 6.21%
2 LKQ CORP 5,062,555 135,120 3.12%
3 TRIMBLE INC 4,052,634 149,745 3.46%
4 SEI INVESTMENTS CO 3,588,764 117,604 2.72%
5 IMAX CORP 2,698,664 76,858 1.78%
6 WASTE CONNECTIONS INC COM 2,513,968 122,053 2.82%
7 ANSYS 2,298,431 174,267 4.03%
8 HEALTHCARE SVCS GRP INC 2,265,779 66,705 1.54%
9 RED HAT INC 2,193,873 121,255 2.80%
10 WAGEWORKS INC COM 2,046,922 98,682 2.28%
11 EXAMWORKS 1,974,465 62,650 1.45%
12 3-D SYS CORP DEL 1,865,174 111,537 2.58%
13 QUALCOMM INC 1,808,523 143,235 3.31%
14 DEALERTRACK TECHNOLOGIES INC 1,727,466 78,323 1.81%
15 DISCOVER FINL SVCS 1,652,043 102,394 2.37%
16 SOUTHWESTERN ENERGY CO 1,616,989 73,557 1.70%
17 EXPEDITORS INTL WASH INC 1,558,900 68,841 1.59%
18 JACOBS ENGR GROUP INC 1,478,438 78,771 1.82%
19 MOODYS CORP 1,389,262 121,783 2.82%
20 VERISK ANALYTICS INC 1,361,399 81,711 1.89%
21 CELGENE CORP 1,349,360 115,883 2.68%
22 TANGOE INC 1,308,496 19,706 0.46%
23 SCHLUMBERGER LTD 1,152,030 135,882 3.14%
24 CARMAX INC 1,124,156 58,467 1.35%
25 ECOLAB INC 1,091,250 121,500 2.81%
26 STERICYCLE INC 1,078,798 127,751 2.95%
27 CareFusion 1,022,780 45,360 1.05%
28 AMERICAN TOWER CORP NEW 953,074 85,758 1.98%
29 CONCUR TECHNOLOGIE 897,601 83,782 1.94%
30 FINANCIAL ENGINES INC 810,549 36,702 0.85%
31 POTASH CORP SASK INC 787,745 29,903 0.69%
32 SIGNET JEWELERS LTD 765,390 84,644 1.96%
33 ROPER TECHNOLOGIES INC 711,861 103,939 2.40%
34 CONCHO RESOURCES 675,791 97,652 2.26%
35 RANGE RES CORP 669,867 58,245 1.35%
36 EXPONENT INC 548,303 40,635 0.94%
37 TYLER TECHNOLOGIES INC 528,532 48,207 1.11%
38 VISA INC 521,027 109,786 2.54%
39 COSTAR GRP INC 516,466 81,689 1.89%
40 INTEL CORP 463,118 14,310 0.33%
41 PRICESMART INC 459,857 40,026 0.93%
42 CORE LABORATORIES N V 350,890 58,620 1.36%
43 PROCTER AND GAMBLE CO 268,906 21,133 0.49%
44 DORMAN PRODUCTS INC 257,516 12,701 0.29%
45 MARKEL CORP 231,915 152,053 3.52%
46 PRICE T ROWE GROUP INC 225,788 19,059 0.44%
47 ILLUMINA INC 195,889 34,974 0.81%
48 APPLIED MINERALS INC 157,600 134 0.00%
49 PANERA BREAD CO 149,667 22,425 0.52%
50 Lynas Corp 135,000 16 0.00%
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