| 1 | VANGUARD GROUP INC | 9,364,469 | $483.5M | 0.01% | Share |
| 2 | Capital World Investors | 6,640,638 | $342.0M | 0.05% | Share |
| 3 | BlackRock, Inc. | 6,444,731 | $332.0M | 0.01% | Share |
| 4 | MONTRUSCO BOLTON INVESTMENTS INC. | 4,343,116 | $218.0M | 2.72% | Share |
| 5 | PRINCIPAL FINANCIAL GROUP INC | 4,186,182 | $216.1M | 0.11% | Share |
| 6 | T. Rowe Price Investment Management, Inc. | 3,964,009 | $204.7M | 0.22% | Share |
| 7 | STATE STREET CORP | 3,466,354 | $178.0M | 0.01% | Share |
| 8 | BlackRock, Inc. | 3,336,305 | $172.0M | 0.00% | Share |
| 9 | Champlain Investment Partners, LLC | 2,555,727 | $132.0M | 1.34% | Share |
| 10 | BLAIR WILLIAM & CO/IL | 2,522,471 | $130.0M | 0.35% | Share |
| 11 | BESSEMER GROUP INC | 2,132,360 | $110.0M | 0.17% | Share |
| 12 | Independent Franchise Partners LLP | 2,115,313 | $109.2M | 0.69% | Share |
| 13 | Stephens Investment Management Group LLC | 1,929,094 | $99.6M | 1.30% | Share |
| 14 | Clearbridge Investments, LLC | 1,881,074 | $97.0M | 0.08% | Share |
| 15 | Polar Capital Holdings Plc | 1,780,000 | $91.0M | 0.35% | Share |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | 1,776,356 | $91.0M | 0.01% | Share |
| 17 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 1,610,000 | $83.0M | 0.13% | Share |
| 18 | Sumitomo Mitsui Trust Group, Inc. | 1,389,929 | $71.8M | 0.04% | Share |
| 19 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 1,384,058 | $71.5M | 0.19% | Share |
| 20 | CITADEL ADVISORS LLC | 1,345,326 | $69.0M | 0.01% | Share |
| 21 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 1,332,045 | $68.8M | 0.18% | Share |
| 22 | MORGAN STANLEY | 1,325,380 | $68.0M | 0.00% | Share |
| 23 | NORGES BANK | 1,172,693 | $60.0M | 0.01% | Share |
| 24 | RAYMOND JAMES FINANCIAL INC | 1,126,652 | $59.0M | 0.02% | Share |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1,072,703 | $55.0M | 0.01% | Share |
| 26 | Zimmer Partners, LP | 1,000,000 | $51.6M | 1.36% | Share |
| 27 | KENSICO CAPITAL MANAGEMENT CORP | 959,500 | $49.5M | 0.84% | Share |
| 28 | AMERIPRISE FINANCIAL INC | 858,232 | $44.0M | 0.01% | Share |
| 29 | Focus Partners Wealth | 842,646 | $43.0M | 0.05% | Share |
| 30 | JANE STREET GROUP, LLC | 839,460 | $43.0M | 0.01% | Share |
| 31 | WESTFIELD CAPITAL MANAGEMENT CO LP | 814,334 | $42.0M | 0.17% | Share |
| 32 | Universal- Beteiligungs- und Servicegesellschaft mbH | 769,333 | $40.3M | 0.07% | Share |
| 33 | Neuberger Berman Group LLC | 778,925 | $40.0M | 0.03% | Share |
| 34 | VANGUARD GROUP INC | 703,642 | $36.3M | 0.00% | Share |
| 35 | NORTHERN TRUST CORP | 711,277 | $36.0M | 0.00% | Share |
| 36 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 639,406 | $33.0M | 0.03% | Share |
| 37 | UBS Group AG | 579,712 | $29.9M | 0.00% | Share |
| 38 | Mawer Investment Management Ltd. | 525,172 | $27.0M | 0.15% | Share |
| 39 | WATERS PARKERSON & CO., LLC | 515,105 | $26.6M | 1.31% | Share |
| 40 | GUARDIAN POINT CAPITAL, LP | 500,000 | $25.0M | 7.74% | Share |
| 41 | DUDLEY & SHANLEY, INC. | 477,671 | $24.7M | 3.96% | Share |
| 42 | COOPER INVESTORS PTY LTD | 459,018 | $23.7M | 7.88% | Share |
| 43 | MORGAN STANLEY | 426,370 | $22.0M | 0.00% | Share |
| 44 | GENEVA CAPITAL MANAGEMENT LLC | 413,332 | $21.3M | 0.40% | Share |
| 45 | MILLENNIUM MANAGEMENT LLC | 426,032 | $21.0M | 0.01% | Share |
| 46 | SG Americas Securities, LLC | 402,402 | $20.8M | 0.03% | Share |
| 47 | BANK OF AMERICA CORP /DE/ | 385,104 | $19.0M | 0.00% | Share |
| 48 | BANK OF AMERICA CORP /DE/ | 384,509 | $19.0M | 0.00% | Share |
| 49 | GEODE CAPITAL MANAGEMENT, LLC | 374,850 | $19.0M | 0.00% | Share |
| 50 | GOLDMAN SACHS GROUP INC | 381,146 | $19.0M | 0.00% | Share |