Amphastar Pharmaceuticals, Inc. (NASDAQ: AMPH) is a Healthcare company in the Drug Manufacturers - Specialty & Generic industry. QuoTrend tracks its price, financials, earnings, analyst ratings and insider trades.
AMPH QT 64Amphastar Pharmaceuticals, Inc. · NASDAQ
23.62 -0.84%
Short Interest History · Twice monthly
Settlement Date Short Interest Avg Daily Volume Shares Float Short Float % Short Ratio Aug-31-26 5.13M 488.78K 32.83M 15.64% 10.50 Aug-14-26 5.39M 564.56K 32.83M 16.40% 9.54 Jul-31-26 4.93M 608.70K 32.83M 15.01% 8.10 Jul-15-26 4.17M 607.17K 32.83M 12.71% 6.88 Jun-30-26 3.85M 621.98K 32.83M 11.71% 6.18 Jun-15-26 3.80M 587.07K 32.83M 11.57% 6.47 May-29-26 3.75M 621.12K 32.83M 11.41% 6.03 May-15-26 3.78M 596.05K 32.83M 11.51% 6.34 Apr-30-26 3.59M 512.55K 32.83M 10.92% 7.00 Apr-15-26 3.90M 493.49K 32.83M 11.89% 7.91 Mar-31-26 3.53M 473.32K 32.83M 10.74% 7.45 Mar-13-26 3.74M 443.35K 32.83M 11.39% 8.43
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