Is IIVI a good stock to own? Find out who bought II-VI, who sold II-VI (IIVI) stock, and who holds a large position in II-VI.

• Columbia Wanger Asset Management owns 7.11M shares worth $121.23M
• Vanguard owns 3.17M shares worth $54.06M
• DF DENT & CO owns 2.61M shares worth $49.60M
• Perkins Investment Management owns 1.20M shares worth $20.48M
• STATE STREET CORPORATION owns 1.02M shares worth $17.32M
• Lazard Asset Management owns 944045 shares worth $17.25M
• Ruane, Cunniff & Goldfarb owns 874644 shares worth $16.06M
• ATLANTA CAPITAL MANAGEMENT CO L L C owns 840372 shares worth $14.32M
• Luther King Capital Management Corporation owns 828205 shares worth $19.59M
• Waddell & Reed Financial owns 814600 shares worth $13.88M
• Monongahela Capital Management owns 776111 shares worth $14.15M
• Jennifer Ranahan owns 775646 shares worth $13.22M
• Ameriprise Financial owns 750776 shares worth $12.52M
• GRANAHAN INVESTMENT MANAGEMENT INC/MA owns 683500 shares worth $12.46M
• Century Capital Management owns 603137 shares worth $14.26M
• Emerald Advisers owns 586392 shares worth $10.77M
• Invicta Capital Management owns 580500 shares worth $10.58M
• Sentinel Asset Management owns 567360 shares worth $10.79M
• Loomis, Sayles and owns 521177 shares worth $8.88M
• Norges Bank Investment Management owns 508845 shares worth $9.30M
• M A WEATHERBIE & CO owns 492746 shares worth $8.98M
• Investment Counselors of Maryland owns 477500 shares worth $8.14M
• Needham Investment Management owns 355900 shares worth $6.06M
• Perimeter Capital Partners owns 341815 shares worth $8.08M
• T. Rowe Price Associates owns 328900 shares worth $5.60M
• Roxbury Capital Management owns 310772 shares worth $5.30M
• Principal Financial owns 297089 shares worth $5.06M
• Conestoga Capital Advisors owns 278559 shares worth $5.11M
• American Century Companies owns 278544 shares worth $5.11M
• Public Sector Pension Investment Board owns 274596 shares worth $6.49M
• Pier Capital owns 265458 shares worth $6.28M

• Tygh Capital Management sold on Sept. 30, 2011
• Royal Bank of Canada sold on Sept. 30, 2011
• CI Global Holdings sold on June 30, 2011
• Heather K. Mellem, Esq. sold on June 30, 2011
• Manulife Asset Management sold on March 31, 2006

• Sociedad Quimica y Minera (SQM)
• ANSYS (ANSS)
• Crown Castle International (CCI)
• Expeditors International of Washington (EXPD)
• Range Resources (RRC)
• Core Laboratories N.V. (CLB)
• FMC Technologies (FTI)
• LKQ Corporation (LKQX)
• Trimble Navigation (TRMB)
• Henry Schein (HSIC)
• Pool Corporation (POOL)
• II-VI (IIVI)
• Concur Technologies (CNQR)
• Donaldson Company (DCI)
• Quanta Services (PWR)
• SBA Communications Corporation (SBAC)
• Eaton Vance (EV)
• Middleby Corporation (MIDD)
• Chicago Bridge & Iron Company N.V. (CBI)
• ViewPoint Financial (VPFG)
• Constant Contact (CTCT)