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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 (2016Q4)
Original 13F HR (0000934999-17-000001) filed in 2017.02.15
#
Name
Shares
Value ($)
%
Options
Notes
1 ROPER TECHNOLOGIES INC 857,029 156,905 4.41%
2 LKQ CORP 4,905,034 150,339 4.22%
3 ANSYS 1,375,277 127,199 3.57%
4 SEI INVESTMENTS CO 2,552,370 125,985 3.54%
5 ECOLAB INC 1,062,225 124,514 3.50%
6 RED HAT INC 1,756,276 122,412 3.44%
7 VISA INC 1,544,678 120,516 3.38%
8 WAGEWORKS INC COM 1,550,676 112,424 3.16%
9 CARMAX INC 1,640,394 105,625 2.97%
10 MOODYS CORP 1,093,275 103,063 2.89%
11 VERISK ANALYTICS INC 1,269,208 103,022 2.89%
12 CELGENE CORP 884,766 102,412 2.88%
13 INTUITIVE SURGICAL INC 160,309 101,663 2.85%
14 IMAX CORP 2,994,349 94,023 2.64%
15 TYLER TECHNOLOGIES INC 642,596 91,743 2.58%
16 TRIMBLE INC 3,001,213 90,487 2.54%
17 MARKEL CORP 99,578 90,068 2.53%
18 FASTENAL CO 1,858,135 87,295 2.45%
19 WASTE CONNECTIONS INC 1,048,425 82,396 2.31%
20 COSTAR GROUP 429,834 81,019 2.27%
21 ALPHABET INC 102,335 78,984 2.22%
22 AMERICAN TOWER CORP NEW 724,939 76,612 2.15%
23 SIGNET JEWELERS LIMITED 805,660 75,942 2.13%
24 HEALTHCARE SVCS GRP INC 1,656,571 64,888 1.82%
25 ILLUMINA INC 505,883 64,773 1.82%
26 BLACKBAUD INC 1,012,043 64,771 1.82%
27 TRANSDIGM GROUP INC 255,949 63,721 1.79%
28 WABTEC CORP 766,611 63,644 1.79%
29 S&P GLOBAL INC 579,651 62,336 1.75%
30 MASTERCARD INCORPORATED 537,322 55,478 1.56%
31 DISCOVER FINL SVCS 715,932 51,612 1.45%
32 STERIS PLC SHS USD 745,874 50,264 1.41%
33 ENVESTNET INC 1,423,966 50,195 1.41%
34 AMAZON COM INC 63,917 47,929 1.35%
35 STERICYCLE INC 596,172 45,929 1.29%
36 PROASSURANCE CORP. 2,022,305 43,520 1.22%
37 BIO TECHNE CORP 366,756 37,714 1.06%
38 QUALCOMM INC 544,695 35,514 1.00%
39 EXPONENT INC 502,730 30,315 0.85%
40 PRA GROUP INC 740,383 28,949 0.81%
41 CBRE GROUP INC 883,379 27,818 0.78%
42 SBA COMMUNICATIONS CORP NEW 193,565 19,988 0.56%
43 O REILLY AUTOMOTIVE INC NEW 65,674 18,284 0.51%
44 PROCTER AND GAMBLE CO 211,300 17,766 0.50%
45 IDEXX LAB 122,959 14,419 0.40%
46 INTEL CORP 346,689 12,574 0.35%
47 PRICE T ROWE GROUP INC 155,354 11,692 0.33%
48 JOHNSON & JOHNSON 88,659 10,214 0.29%
49 FISERV INC 93,467 9,934 0.28%
50 SCHLUMBERGER LTD 105,757 8,878 0.25%
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