ATMI INC's ticker is ATMI and the CUSIP is 00207R101. A total of 132 filers reported holding ATMI INC in Q4 2013. The put-call ratio across all filers is 33.75 and the average weighting 0.3%.
Quarter-by-quarter ownership
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Herald Investment Management Ltd | 580,000 | $19,703,000 | 7.79% |
| LG Capital Management, LP | 612,711 | $20,838,000 | 6.62% |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC | 750,000 | $25,507,000 | 4.20% |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 403,353 | $13,718,000 | 3.73% |
| TOURADJI CAPITAL MANAGEMENT, LP | 10,000 | $340,000 | 2.49% |
| Loeb Offshore Management LP | 222,504 | $7,567,000 | 2.16% |
| INVESTMENT COUNSELORS OF MARYLAND LLC | 1,000,850 | $34,039,000 | 1.44% |
| WATER ISLAND CAPITAL LLC | 1,156,734 | $39,340,000 | 1.40% |
| SCHNEIDER CAPITAL MANAGEMENT CORP | 338,597 | $11,516,000 | 1.26% |
| GLAZER CAPITAL, LLC | 121,807 | $4,143,000 | 1.06% |