| 1 | VANGUARD GROUP INC | 1,904,994 | $745.1M | 0.01% | Share |
| 2 | BAMCO INC /NY/ | 1,781,201 | $696.7M | 1.89% | Share |
| 3 | BlackRock, Inc. | 1,306,690 | $511.0M | 0.01% | Share |
| 4 | Capital World Investors | 987,844 | $386.0M | 0.05% | Share |
| 5 | STATE STREET CORP | 685,936 | $268.0M | 0.01% | Share |
| 6 | BlackRock, Inc. | 654,288 | $255.0M | 0.00% | Share |
| 7 | FIRST MANHATTAN CO. LLC. | 614,647 | $240.0M | 0.63% | Share |
| 8 | Life Cycle Investment Partners Ltd | 587,168 | $229.0M | 1.60% | Share |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 533,942 | $210.0M | 0.01% | Share |
| 10 | DAVENPORT & Co LLC | 530,043 | $208.4M | 1.11% | Share |
| 11 | MORGAN STANLEY | 454,415 | $177.0M | 0.01% | Share |
| 12 | DF DENT & CO INC | 315,756 | $123.0M | 1.77% | Share |
| 13 | Turtle Creek Asset Management Inc. | 278,670 | $109.0M | 4.80% | Share |
| 14 | NORGES BANK | 275,916 | $107.0M | 0.01% | Share |
| 15 | RIVERBRIDGE PARTNERS LLC | 268,453 | $105.0M | 1.97% | Share |
| 16 | JPMORGAN CHASE & CO | 259,340 | $101.0M | 0.01% | Share |
| 17 | DIMENSIONAL FUND ADVISORS LP | 257,481 | $100.0M | 0.02% | Share |
| 18 | Invesco Ltd. | 251,579 | $98.4M | 0.02% | Share |
| 19 | Champlain Investment Partners, LLC | 238,175 | $93.2M | 0.94% | Share |
| 20 | Maren Capital LLC | 234,737 | $91.8M | 4.94% | Share |
| 21 | GENEVA CAPITAL MANAGEMENT LLC | 213,028 | $83.3M | 1.57% | Share |
| 22 | ROYAL LONDON ASSET MANAGEMENT LTD | 213,899 | $83.0M | 0.17% | Share |
| 23 | Giverny Capital Inc. | 214,264 | $83.0M | 2.77% | Share |
| 24 | Stephens Investment Management Group LLC | 208,075 | $81.4M | 1.06% | Share |
| 25 | Spyglass Capital Management LLC | 197,186 | $77.1M | 3.86% | Share |
| 26 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 183,344 | $71.7M | 0.19% | Share |
| 27 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 176,477 | $69.0M | 0.01% | Share |
| 28 | ALLIANCEBERNSTEIN L.P. | 173,419 | $67.0M | 0.02% | Share |
| 29 | AMERICAN CENTURY COMPANIES INC | 152,880 | $59.0M | 0.03% | Share |
| 30 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 150,642 | $58.0M | 0.09% | Share |
| 31 | NORTHERN TRUST CORP | 148,659 | $58.0M | 0.01% | Share |
| 32 | GW&K Investment Management, LLC | 140,801 | $55.1M | 0.48% | Share |
| 33 | VANGUARD GROUP INC | 138,161 | $54.0M | 0.00% | Share |
| 34 | Madison Asset Management, LLC | 137,362 | $53.7M | 0.62% | Share |
| 35 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 133,529 | $52.2M | 0.14% | Share |
| 36 | Prime Capital Management Co Ltd | 115,498 | $45.2M | 5.36% | Share |
| 37 | ENVESTNET ASSET MANAGEMENT INC | 112,345 | $43.0M | 0.01% | Share |
| 38 | Copeland Capital Management, LLC | 100,107 | $39.2M | 0.87% | Share |
| 39 | Port Capital LLC | 97,508 | $38.1M | 1.64% | Share |
| 40 | GENEVA CAPITAL MANAGEMENT LLC | 87,846 | $34.4M | 0.65% | Share |
| 41 | UBS Group AG | 83,958 | $32.8M | 0.01% | Share |
| 42 | BANK OF AMERICA CORP /DE/ | 82,437 | $32.0M | 0.00% | Share |
| 43 | MILLENNIUM MANAGEMENT LLC | 81,942 | $32.0M | 0.01% | Share |
| 44 | Bank of New York Mellon Corp | 77,900 | $30.0M | 0.01% | Share |
| 45 | Langdon Equity Partners | 69,151 | $29.6M | 15.23% | Share |
| 46 | HOWLAND CAPITAL MANAGEMENT LLC | 71,656 | $28.0M | 1.07% | Share |
| 47 | Ensign Peak Advisors, Inc | 72,291 | $28.0M | 0.05% | Share |
| 48 | NATIXIS ADVISORS, LLC | 72,585 | $28.0M | 0.04% | Share |
| 49 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 72,684 | $28.0M | 0.02% | Share |
| 50 | GEODE CAPITAL MANAGEMENT, LLC | 73,477 | $28.0M | 0.00% | Share |