AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 138 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2016. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $2,667 | -99.9% | 58 | -100.0% | 0.00% | -100.0% |
| Q2 2018 | $1,991,000 | -48.6% | 130,468 | -36.9% | 0.00% | -40.0% |
| Q1 2018 | $3,874,000 | -12.2% | 206,601 | -9.9% | 0.01% | -16.7% |
| Q4 2017 | $4,411,000 | +16.3% | 229,277 | +8.1% | 0.01% | +20.0% |
| Q3 2017 | $3,792,000 | +8.6% | 212,183 | +8.5% | 0.01% | 0.0% |
| Q2 2017 | $3,492,000 | +59.5% | 195,547 | +29.5% | 0.01% | +25.0% |
| Q1 2017 | $2,190,000 | +19.7% | 151,055 | +52.1% | 0.00% | +33.3% |
| Q4 2016 | $1,830,000 | -51.2% | 99,324 | -49.7% | 0.00% | -57.1% |
| Q3 2016 | $3,750,000 | -11.6% | 197,658 | -21.0% | 0.01% | -12.5% |
| Q2 2016 | $4,241,000 | +20.6% | 250,331 | -9.5% | 0.01% | +14.3% |
| Q1 2016 | $3,517,000 | -10.6% | 276,472 | 0.0% | 0.01% | -12.5% |
| Q4 2015 | $3,934,000 | +45.2% | 276,472 | +19.2% | 0.01% | +33.3% |
| Q3 2015 | $2,710,000 | – | 231,862 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 128,000 | $5,886,720 | 5.78% |
| Beacon Harbor Wealth Advisors, Inc. | 103,095 | $4,741 | 1.58% |
| Capital Impact Advisors, LLC | 15,304 | $703,831 | 1.18% |
| Quantedge Capital Pte Ltd | 36,389 | $1,673,530 | 0.91% |
| Mesirow Institutional Investment Management, Inc. | 183,805 | $8,453,192 | 0.86% |
| Monashee Investment Management LLC | 39,461 | $1,814,811 | 0.76% |
| OBERWEIS ASSET MANAGEMENT INC/ | 152,500 | $7,013,475 | 0.74% |
| Granite Investment Partners, LLC | 330,911 | $15,218,597 | 0.64% |
| Portolan Capital Management | 132,850 | $6,109,772 | 0.57% |
| SHAKER INVESTMENTS LLC/OH | 20,795 | $956,362 | 0.53% |