AMPH (Amphastar Pharmaceuticals, Inc.) historical data
STOCKListed
| Symbol | AMPH |
|---|---|
| Name | Amphastar Pharmaceuticals, Inc. |
| History | 2014-06-26 to 2026-10-08 (about 12 years) |
| Bar sizes | Daily, hourly, 5-minute and 1-minute |
| Adjustments | Unadjusted, split-adjusted or split-and-dividend-adjusted, chosen on read |
| Survivorship | Included in the survivorship-free universe |
| Free tier | Last 12 months of daily bars |
Institutional ownership (13F, 2026Q2)
| Managers holding | 210 |
|---|---|
| Shares held | 28,333,453 ($572.4m reported value) |
| Quarter flows | 33 new, 64 added, 75 trimmed, 38 exited; -4,013,411 shares vs the prior quarter |
From SEC Form 13F filings. Every holder, line by line, and the full history since 2013: yf.Client().holders("AMPH") on the look-back bundles. All 13F managers
Get it in Python
import finzdata as yf
df = yf.Ticker("AMPH").history(start="2014-06-26", interval="1d")
df.tail()