CASTLEARK MANAGEMENT LLC
1 N WACKER DR, CHICAGO, Illinois, 60606, (312) 456-9682
Report Date: 03/31/2013
Position Statistics:
| Total Positions | 334 |
| New Positions | 39 |
| Increased Positions | 97 |
| Decreased Positions | 151 |
| Positions with Activity | 248 |
| Sold Out Positions | 48 |
| Total Mkt Value (in $ millions) |
3,058 |
Sector Weighting
| Basic Materials | 6.83% |
| Capital Goods | 6.08% |
| Conglomerates | 0.11% |
| Consumer Cyclical | 6.22% |
| Consumer/Non-Cyclical | 2.21% |
| Energy | 17% |
| Financial | 11.42% |
| Healthcare | 6.82% |
| Services | 15.64% |
| Technology | 17.35% |
| Transportation | 8.87% |
| Utilities | 1.43% |
Institutional Holdings information is filed by major institutions on form 13-F with the Securities and Exchange Commission.
97 INCREASED Positions as of 03/31/2013
| Company | Class | Value of Shares ($1,000s) |
Change in Value ($1,000s) | Change (%) | Shares Held |
|---|---|---|---|---|---|
| SANTARUS INC | COM | 4,075 | 4,075 | New | 188,150 |
| RADIAN GROUP INC | COM | 3,829 | 3,829 | New | 300,775 |
| FIESTA RESTAURANT GROUP INC | COM | 3,799 | 3,799 | New | 107,975 |
| EMERITUS CORP | COM | 3,779 | 221 | 6.22 | 154,200 |
| KORN FERRY INTL | COM NEW | 3,735 | 3,735 | New | 216,275 |
| CAI INTERNATIONAL INC | COM | 3,653 | 3,653 | New | 138,300 |
| PDF SOLUTIONS INC | COM | 3,631 | 451 | 14.19 | 204,225 |
| CYNOSURE INC | CL A | 3,625 | 748 | 26.01 | 154,171 |
| CARDIOVASCULAR SYS INC DEL | COM | 3,446 | 3,446 | New | 158,125 |
| DIGITALGLOBE INC | COM NEW | 3,339 | 600 | 21.90 | 110,500 |
| SYNCHRONOSS TECHNOLOGIES INC | COM | 3,314 | 3,314 | New | 104,975 |
| BRUKER CORP | COM | 3,275 | 3,275 | New | 200,200 |
| CHINA PETE & CHEM CORP | SPON ADR H SHS | 3,149 | 1,225 | 63.64 | 34,200 |
| WABASH NATL CORP | COM | 3,131 | 440 | 16.34 | 319,515 |
| FREESCALE SEMICONDUCTOR LTD | SHS | 3,094 | 3,094 | New | 206,850 |
| RPX CORP | COM | 2,954 | 2,954 | New | 187,775 |
| QLIK TECHNOLOGIES INC | COM | 2,861 | 2,861 | New | 97,150 |
| RTI INTL METALS INC | COM | 2,845 | 1,129 | 65.79 | 99,225 |
| SEMGROUP CORP | CL A | 2,828 | 452 | 19.05 | 52,500 |
| SILICON GRAPHICS INTL CORP | COM | 2,810 | 2,810 | New | 202,125 |
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