AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 138 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,124,915 | -32.4% | 24,460 | -15.5% | 0.00% | -50.0% |
| Q2 2023 | $1,662,952 | +1.4% | 28,936 | -33.8% | 0.00% | 0.0% |
| Q1 2023 | $1,640,175 | +57.8% | 43,738 | +17.9% | 0.00% | +100.0% |
| Q4 2022 | $1,039,318 | +1.5% | 37,092 | +1.8% | 0.00% | 0.0% |
| Q3 2022 | $1,024,000 | -34.2% | 36,427 | -18.6% | 0.00% | -50.0% |
| Q2 2022 | $1,557,000 | -30.0% | 44,750 | -28.6% | 0.00% | 0.0% |
| Q1 2022 | $2,224,000 | +33.3% | 62,699 | -12.4% | 0.00% | 0.0% |
| Q4 2021 | $1,668,000 | +88.5% | 71,603 | +53.9% | 0.00% | +100.0% |
| Q3 2021 | $885,000 | +124.1% | 46,530 | +137.7% | 0.00% | – |
| Q2 2021 | $395,000 | +11.9% | 19,573 | +1.7% | 0.00% | – |
| Q1 2021 | $353,000 | +29.3% | 19,246 | +41.8% | 0.00% | – |
| Q4 2020 | $273,000 | +16.2% | 13,572 | +8.4% | 0.00% | – |
| Q3 2020 | $235,000 | -20.9% | 12,522 | -5.2% | 0.00% | – |
| Q2 2020 | $297,000 | -62.8% | 13,210 | -75.4% | 0.00% | -100.0% |
| Q1 2020 | $798,000 | +5.7% | 53,708 | +37.2% | 0.00% | 0.0% |
| Q4 2019 | $755,000 | +98.7% | 39,154 | +104.4% | 0.00% | – |
| Q3 2019 | $380,000 | +280.0% | 19,154 | +241.4% | 0.00% | – |
| Q2 2017 | $100,000 | +44.9% | 5,611 | +17.7% | 0.00% | – |
| Q1 2017 | $69,000 | +176.0% | 4,769 | +206.3% | 0.00% | – |
| Q2 2016 | $25,000 | +56.2% | 1,557 | +14.9% | 0.00% | – |
| Q1 2016 | $16,000 | -11.1% | 1,355 | +8.5% | 0.00% | – |
| Q4 2015 | $18,000 | +28.6% | 1,249 | +5.7% | 0.00% | – |
| Q3 2015 | $14,000 | -26.3% | 1,182 | +9.7% | 0.00% | – |
| Q2 2015 | $19,000 | – | 1,077 | – | 0.00% | – |
Download | ||||||
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% |