AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 94 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2015. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2015 | $1,277,000 | +21.7% | 89,750 | 0.0% | 0.26% | +24.5% |
| Q3 2015 | $1,049,000 | -61.6% | 89,750 | -42.2% | 0.21% | -57.5% |
| Q2 2015 | $2,730,000 | +45.1% | 155,280 | +23.4% | 0.50% | +47.6% |
| Q1 2015 | $1,882,000 | +105.5% | 125,820 | +59.5% | 0.34% | +210.1% |
| Q4 2014 | $916,000 | +32.0% | 78,890 | +32.4% | 0.11% | +159.5% |
| Q3 2014 | $694,000 | – | 59,580 | – | 0.04% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Alambic Investment Management, L.P. | 29,423 | $583,000 | 0.44% |
| Matarin Capital Management, LLC | 223,184 | $4,426,000 | 0.34% |
| Summit Global Investments | 42,725 | $847,000 | 0.10% |
| FEDERATED HERMES, INC. | 1,747,921 | $34,661,000 | 0.08% |
| ROTHSCHILD & CO ASSET MANAGEMENT US INC. | 347,307 | $6,887,000 | 0.08% |
| MARSHALL WACE, LLP | 413,293 | $8,196,000 | 0.06% |
| BOSTON ADVISORS LLC | 42,365 | $840,000 | 0.04% |
| MARTINGALE ASSET MANAGEMENT L P | 214,444 | $4,254,000 | 0.04% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 177,321 | $3,516,000 | 0.04% |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 231,041 | $4,582,000 | 0.04% |