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AMPH · Amphastar Pharmaceuticals, Inc.
NASDAQ NMS - GLOBAL MARKET - BOATS Real Time Price • USD
Amphastar Pharmaceuticals, Inc (AMPH)
NASDAQ NMS - GLOBAL MARKET
Pharmaceuticals
$26.24
+0.29
(+1.14%)
● At close: October 21 at 4:00:00 PM EDT
DAY'S RANGE
$26.24
$25.65
$26.32
52-WEEK RANGE
$26.24
$16.65
$29.52
What's happening
- AMPH is up 1.14% today, trading at $26.24. — Live quote
- Volume today (23,312) is well below its 3-month average of 486,700. (Finnhub fundamentals)
- Reports earnings on 2026-11-09, 18 days away. (Finnhub earnings calendar)
- Last quarter's EPS beat estimates: $0.91 actual vs. $0.63 estimated (+43.9%). (Finnhub earnings history)
Deterministic template sentences filled in from the same sourced figures shown elsewhere on this page -- not an AI-written summary, no live model call.
Key Statistics
Analyst Recommendations
Strong buy 0
Buy 0
Hold 8
Sell 2
Strong sell 2
Aggregate ratings for 2026-10-01 (12 analysts polled by Finnhub) — consensus count.
Performance Overview (Trailing returns vs S&P 500 benchmark)
YTD RETURN
AMPH
-3.14%
vs S&P 500
-15.91%
1-YEAR RETURN
AMPH
+9.31%
vs S&P 500
-5.25%
6-MONTH RETURN
AMPH
+18.94%
3-MONTH RETURN
AMPH
+32.41%
Earnings Trends (Quarterly EPS Actual vs Estimate)
2026-07-26 (Q2 2026)
$0.91
Est. $0.63
BEAT +43.9%
2026-04-26 (Q1 2026)
$0.42
Est. $0.72
MISS -41.6%
2026-01-26 (Q4 2025)
$0.73
Est. $0.94
MISS -22.4%
2025-10-26 (Q3 2025)
$0.93
Est. $0.84
BEAT +10.6%
Valuation Measures & Ratios
Enterprise Value4$1.49B
Forward P/E57.79
PEG Ratio6-17.78
Price / Sales (TTM1)1.51
Price / Book71.16
EV4 / Revenue2.04
EV4 / EBITDA11.53
Profit Margin10.76%
Operating Margin15.66%
Return on Equity (ROE8)10.11%
Return on Assets (ROA9)4.70%
Avg Volume (3M)486,700
Quarterly history (5 periods)
| Measure | Jun '26 | Mar '26 | Sep '25 | Jun '25 | Mar '25 |
|---|---|---|---|---|---|
| Market cap | $912.3M | $898.8M | $1.25B | $1.11B | $1.44B |
| P/E | 10.71 | 11.22 | 10.95 | 8.28 | 9.78 |
| Price/Sales | 1.26 | 1.27 | 1.72 | 1.55 | 2.01 |
| EV/Revenue | 0.95 | 1.03 | 1.42 | 1.29 | 1.75 |
| ROA | 4.88% | 4.86% | 6.85% | 8.34% | 9.03% |
Trailing-twelve-month ratios computed from SEC EDGAR quarterly figures and historical daily close prices (Alpaca). Diluted shares are derived from Net income ÷ EPS (diluted) for each quarter, not separately reported. Forward P/E/PEG unavailable (no free data source).
Glossary — what these abbreviations mean
- 1. TTM
- Trailing twelve months — the sum of the last four reported quarters, not a calendar year or the single latest quarter.
- 2. EPS
- Earnings per share — net income divided by diluted shares outstanding.
- 3. Beta
- A stock's historical volatility relative to the overall market. Above 1 means it has moved more than the market; below 1, less.
- 4. EV (Enterprise Value)
- Market cap plus total debt minus cash — roughly what it would cost to buy the whole company, debt included.
- 5. Forward P/E
- Price divided by analysts' estimated earnings for the next 12 months, instead of trailing actual earnings.
- 6. PEG Ratio
- P/E divided by expected earnings growth rate. A lower number can indicate a stock is cheap relative to how fast it's expected to grow.
- 7. Price / Book
- Share price divided by book value (assets minus liabilities) per share.
- 8. ROE
- Return on equity — net income divided by shareholders' equity, a measure of how efficiently a company turns equity into profit.
- 9. ROA
- Return on assets — net income divided by total assets, a measure of how efficiently a company turns assets into profit.
- 10. MRQ
- Most recent quarter — the single latest reported period, as opposed to TTM. The Financials section's "Quarterly" view below shows MRQ-style figures.
- 11. YoY
- Year over year — percent change versus the same period one year earlier, used for growth figures like those on Compare cards and the Screener.
Short Interest
Shares Short4,405,038
Change from Prior Settlement-11.81%
% of Float—
Days to Cover (Short Ratio)7.10
Source: FINRA Rule 4560 consolidated short interest, settlement date 2026-09-30. Reported bi-monthly with a reporting lag — not real-time.
Quotes and the 1-day extended-hours chart: Yahoo Finance. Longer historical charts: Alpaca (IEX feed) — real-time but IEX-only volume (~2.5% of consolidated market volume). Fundamentals + earnings: Finnhub.
Price history
Events
Drag horizontally to zoom into a section; use Reset view to restore all observations.
Technical signal summary
Calculating from the latest year of daily price history…
Show Technical Analysis Breakdown ▾ 10 Indicators
Not investment advice — read several signals together.
Indicators None active
Loading chart…
History limited by data provider; markers are heuristics, not signals.
Peer and sector context
No reviewed peer group is available for this symbol.
Balanced evidence
A deterministic summary of sourced facts—not an AI verdict.
Potential strengths
- Revenue growth is 5.4% on the provider's reported measure. Finnhub fundamentals ↗
- Net profit margin is 10.8%. Finnhub fundamentals ↗
- Trailing 52-week price return is +9.3%. Finnhub market metrics ↗
Potential concerns
- Latest SEC filing is Form 4, filed 2026-09-23; review it for current changes and risks. SEC EDGAR ↗
Rule-based facts only; absence from either side is not evidence, and this is not a recommendation.
More on AMPH
No accessible free API for these — links go to the source directly.
Financials
Fundamental trends
Visualized from the same SEC figures in the tables below.
Income statement
| Line item | Jun '26 | Mar '26 | Sep '25 | Jun '25 | Mar '25 | Sep '24 | Jun '24 | Mar '24 |
|---|---|---|---|---|---|---|---|---|
| Revenue | $183.9M | $171.2M | $191.8M | $174.4M | $170.5M | $191.2M | $182.4M | $171.8M |
| Gross profit | $93.5M | $70.3M | $98.6M | $86.5M | $85.3M | $101.9M | $95.2M | $90.1M |
| Operating income | $39.7M | $13.6M | $25.3M | $42.2M | $37.3M | $57.0M | $55.2M | $48.0M |
| Net income | $30.3M | $6.4M | $17.4M | $31.0M | $25.3M | $40.4M | $37.9M | $43.2M |
| EPS (diluted) | $0.67 | $0.14 | $0.37 | $0.64 | $0.51 | $0.78 | $0.73 | $0.81 |
| EPS (basic) | $0.69 | $0.14 | $0.38 | $0.66 | $0.53 | $0.83 | $0.77 | $0.90 |
| Operating margin | $22 | $8 | $13 | $24 | $22 | $30 | $30 | $28 |
| Net margin | $17 | $4 | $9 | $18 | $15 | $21 | $21 | $25 |
Balance sheet
| Line item | Jun '26 | Mar '26 | Dec '25 | Sep '25 | Jun '25 | Mar '25 | Dec '24 | Sep '24 |
|---|---|---|---|---|---|---|---|---|
| Total assets | $1.74B | $1.65B | $1.63B | $1.67B | $1.62B | $1.63B | $1.58B | $1.55B |
| Total liabilities | $975.6M | $874.8M | $840.5M | $889.5M | $857.9M | $875.0M | $845.2M | $817.5M |
| Stockholders' equity | — | — | — | — | — | — | — | — |
| Total current assets | $631.0M | $633.7M | $636.0M | $639.5M | $580.8M | $588.0M | $534.1M | $545.9M |
| Total current liabilities | $263.2M | $164.5M | $158.2M | $205.2M | $176.4M | $199.1M | $173.8M | $159.0M |
| Cash & equivalents | $223.6M | $170.9M | $170.2M | $216.3M | $187.7M | $182.8M | $151.6M | $192.1M |
| Marketable securities (current) | $66.5M | $121.0M | $112.6M | $59.9M | $44.1M | $54.1M | $70.0M | $58.4M |
| Accounts receivable | $144.9M | $147.8M | $143.6M | $146.8M | $133.0M | $144.6M | $136.3M | $139.6M |
| Inventory | $179.9M | $170.2M | $176.9M | $185.9M | $191.7M | $185.5M | $153.7M | $130.3M |
| Marketable securities (non-current) | — | — | — | — | $2.0M | $5.9M | $11.0M | — |
| Property, plant & equipment | $316.1M | $307.2M | $310.6M | $308.7M | $310.2M | $307.6M | $297.3M | $295.4M |
| Goodwill | $3.3M | $3.3M | $3.4M | $3.4M | $3.4M | $3.2M | $3.0M | $3.3M |
| Intangible assets | $615.3M | $527.1M | $533.3M | $539.6M | $545.9M | $552.1M | $558.4M | $562.3M |
| Other non-current assets | $33.4M | $33.5M | $31.1M | $29.9M | $28.1M | $23.0M | $26.0M | $23.7M |
| Accounts payable | $28.9M | $35.5M | $32.6M | $40.5M | $41.9M | $52.8M | $30.5M | $34.1M |
| Accrued liabilities | $222.4M | $117.2M | $115.8M | $150.3M | $124.7M | $123.1M | $126.5M | $119.2M |
| Deferred revenue (current) | — | — | — | — | — | — | — | — |
| Long-term debt | — | — | $619.7M | — | — | — | $613.5M | — |
| Other non-current liabilities | $29.4M | $29.4M | $30.0M | $29.3M | $27.8M | $24.4M | $20.9M | $27.0M |
| Common stock & paid-in capital | $6.0K | $6.0K | $6.0K | $6.0K | $6.0K | $6.0K | $6.0K | $6.0K |
| Retained earnings | $703.6M | $673.3M | $666.9M | $642.5M | $625.1M | $594.1M | $568.8M | $530.8M |
| Accumulated other comprehensive income (loss) | -$5.9M | -$5.7M | -$5.3M | -$5.3M | -$5.4M | -$8.0M | -$9.2M | -$8.8M |
Cash flow
| Line item | Jun '26 | Mar '26 | Dec '25 | Sep '25 | Jun '25 | Mar '25 | Dec '24 | Sep '24 |
|---|---|---|---|---|---|---|---|---|
| Operating cash flow | $51.3M | $47.8M | $32.9M | $52.6M | $35.6M | $35.1M | $29.0M | $60.0M |
| Investing cash flow | $44.9M | -$16.7M | -$60.6M | -$19.6M | -$625.0K | $10.5M | -$35.7M | -$34.6M |
| Financing cash flow | -$43.5M | -$30.2M | -$18.4M | -$4.3M | -$30.2M | -$14.5M | -$33.8M | -$22.8M |
| Free cash flow | $42.7M | $38.3M | $24.6M | $47.2M | $25.0M | $24.4M | $16.6M | $46.2M |
| Capital expenditures | $8.6M | $9.5M | $8.3M | $5.3M | $10.6M | $10.7M | $12.4M | $13.8M |
| Depreciation & amortization | $14.3M | — | — | $14.1M | $14.6M | — | — | $13.4M |
| Share-based compensation | $7.1M | $9.3M | $6.2M | $6.3M | $6.4M | $8.4M | $5.6M | $5.6M |
| Deferred income taxes | — | — | $28.7M | — | — | — | -$17.1M | — |
| Change in accounts receivable | -$3.0M | $4.5M | -$3.2M | $13.8M | -$12.3M | $8.1M | -$2.9M | $8.1M |
| Change in inventory | $9.9M | -$6.2M | -$9.0M | -$5.9M | $4.8M | $31.1M | $24.5M | $7.3M |
| Purchases of investments | $9.0M | $22.8M | $68.3M | $35.2M | $8.5M | $7.1M | $29.3M | $25.0M |
| Share repurchases | $45.2M | $29.5M | $20.5M | $4.8M | $39.2M | $11.0M | $42.0M | $35.0M |
| Debt issued | — | — | — | — | — | — | — | — |
| Debt repaid | $47.0K | $29.0K | $104.0K | $44.0K | $37.0K | $38.0K | $115.0K | $41.0K |
| Tax withholding on stock comp | — | — | — | — | — | — | — | — |
Income statement
| Line item | Dec '25 | Dec '24 | Dec '23 | Dec '22 | Dec '21 |
|---|---|---|---|---|---|
| Revenue | $719.9M | $732.0M | $644.4M | $499.0M | $437.8M |
| Gross profit | $356.1M | $373.9M | $351.1M | $248.9M | $199.7M |
| Operating income | $140.4M | $205.4M | $197.0M | $107.5M | $69.9M |
| Net income | $98.1M | $159.5M | $137.5M | $91.4M | $62.1M |
| EPS (diluted) | $2.03 | $3.06 | $2.60 | $1.74 | $1.25 |
| EPS (basic) | $2.10 | $3.29 | $2.85 | $1.88 | $1.30 |
| Operating margin | $20 | $28 | $31 | $22 | $16 |
| Net margin | $14 | $22 | $21 | $18 | $14 |
Balance sheet
| Line item | Dec '25 | Dec '24 | Dec '23 | Dec '22 | Dec '21 |
|---|---|---|---|---|---|
| Total assets | $1.63B | $1.58B | $1.51B | $742.0M | $671.5M |
| Total liabilities | $840.5M | $845.2M | $873.5M | $213.3M | $226.0M |
| Stockholders' equity | — | — | — | — | $445.5M |
| Total current assets | $636.0M | $534.1M | $489.6M | $378.3M | $318.1M |
| Total current liabilities | $158.2M | $173.8M | $225.4M | $94.9M | $103.8M |
| Cash & equivalents | $170.2M | $151.6M | $144.3M | $156.1M | $126.4M |
| Marketable securities (current) | $112.6M | $70.0M | $112.5M | $19.7M | $10.3M |
| Accounts receivable | $143.6M | $136.3M | $114.9M | $88.8M | $78.8M |
| Inventory | $176.9M | $153.7M | $105.8M | $103.6M | $92.8M |
| Marketable securities (non-current) | — | $11.0M | $14.7M | — | — |
| Property, plant & equipment | $310.6M | $297.3M | $282.7M | $238.3M | $244.2M |
| Goodwill | $3.4M | $3.0M | $3.2M | $3.1M | $3.3M |
| Intangible assets | $533.3M | $558.4M | $580.9M | $4.9M | $6.3M |
| Other non-current assets | $31.1M | $26.0M | $25.9M | $20.9M | $16.7M |
| Accounts payable | $32.6M | $30.5M | $25.4M | $20.5M | $22.2M |
| Accrued liabilities | $115.8M | $126.5M | $67.9M | $63.7M | $67.3M |
| Deferred revenue (current) | — | — | — | — | — |
| Long-term debt | $619.7M | $613.5M | $603.2M | $76.6M | $78.2M |
| Other non-current liabilities | $30.0M | $20.9M | $22.7M | $14.6M | $15.7M |
| Common stock & paid-in capital | $6.0K | $6.0K | $6.0K | $6.0K | $6.0K |
| Retained earnings | $666.9M | $568.8M | $409.3M | $271.7M | $180.3M |
| Accumulated other comprehensive income (loss) | -$5.3M | -$9.2M | -$8.5M | -$8.6M | -$6.8M |
Cash flow
| Line item | Dec '25 | Dec '24 | Dec '23 | Dec '22 | Dec '21 |
|---|---|---|---|---|---|
| Operating cash flow | $156.1M | $213.4M | $183.5M | $89.2M | $98.0M |
| Investing cash flow | -$70.3M | -$124.9M | -$649.1M | -$32.8M | -$28.7M |
| Financing cash flow | -$67.4M | -$81.0M | $454.1M | -$26.4M | -$37.0M |
| Free cash flow | $121.2M | $172.3M | $145.3M | $65.1M | $70.5M |
| Capital expenditures | $34.9M | $41.0M | $38.2M | $24.0M | $27.5M |
| Depreciation & amortization | — | — | $25.7M | $12.6M | $10.2M |
| Share-based compensation | $27.3M | $24.4M | $20.2M | $17.9M | $18.7M |
| Deferred income taxes | $28.7M | -$17.1M | -$13.9M | -$15.9M | $3.7M |
| Change in accounts receivable | $6.4M | $21.7M | $26.1M | $10.1M | $14.9M |
| Change in inventory | $21.1M | $48.8M | $1.7M | $11.7M | -$1.3M |
| Purchases of investments | $119.1M | $76.8M | $144.6M | $35.8M | $17.4M |
| Share repurchases | $75.6M | $85.5M | $58.1M | $39.9M | $28.9M |
| Debt issued | — | — | $845.0M | — | $70.0M |
| Debt repaid | $223.0K | $8.3M | $318.7M | $1.8M | $36.7M |
| Tax withholding on stock comp | — | — | — | — | — |
Source: SEC EDGAR XBRL filings (10-Q/10-K), as originally tagged by the company. Quarterly cash flow is reconstructed by de-cumulating fiscal-year-to-date figures (how cash flow is tagged in 10-Qs); other quarterly lines are reported directly.
Institutional holders
SEC Form 13F filers holding AMPH as of the latest reported quarter. 13F only covers investment managers with $100M+ in assets — this is not a complete ownership picture, and does not include insiders (see Recent SEC filings below) or non-13F-eligible holders.
Institutional ownership is not available for this symbol right now.
Insider activity
Directors, officers, and 10%+ owners' reported transactions from SEC Form 4. A filing reports a transaction; it does not by itself explain why it happened.
Source: SEC EDGAR Form 4 filings · checked 25 most recent filings · covers 2024-08-19 to 2026-09-21
Recent transactions
- Insiders have net sold 33,479 shares over the last 182 days, across 0 purchases and 5 sales.
- Most recent: PETERS WILLIAM J (CFO, EVP & TREASURER) — Open market sale of 4,139 shares on 2026-09-21.
Deterministic template sentences filled in from the SEC Form 4 figures in the tables below -- not an AI-written summary, no live model call.
Insider purchases & sales, last 6 months
Purchases (open market)0 sh(0 txns)
Sales (open market)33,479 sh(5 txns)
Net Shares-33,479
Counts only open-market purchases (code P) and sales (code S) — grants, option exercises, tax withholding, and gifts are excluded since they aren't a market buy/sell decision.
Insider roster
| Name | Title | Most Recent Transaction | Date | Shares |
|---|---|---|---|---|
| PETERS WILLIAM J | CFO, EVP & TREASURER | Open market sale | 2026-09-21 | 4,139 |
| Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Option exercise | 2026-09-16 | 10,000 |
| PRINS RICHARD K | Reporting person | Open market sale | 2026-08-11 | 7,973 |
| Pierce Anthony T | Reporting person | Grant / award | 2026-07-09 | 7,886 |
| Lee Howard | Reporting person | Tax withholding | 2026-06-02 | 769 |
| ZASLOFF MICHAEL A | Reporting person | Grant / award | 2026-06-01 | 8,143 |
| Gerst Diane G. | Reporting person | Grant / award | 2026-06-01 | 8,143 |
| Gaugh David Russell | Reporting person | Grant / award | 2026-06-01 | 8,143 |
| Deflin Gayle | Reporting person | Grant / award | 2026-06-01 | 8,143 |
| Liawatidewi Yakob | EVP CORP ADMIN CENTER | Tax withholding | 2026-03-15 | 1,033 |
| Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Tax withholding | 2026-03-15 | 9,784 |
Recent transactions
| Date | Insider | Title | Transaction | Shares | Price |
|---|---|---|---|---|---|
| 2026-09-21 | PETERS WILLIAM J | CFO, EVP & TREASURER | Open market sale | 4,139 | $25.00 |
| 2026-09-16 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Option exercise | 10,000 | $13.35 |
| 2026-09-16 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Open market sale | 10,000 | $23.94 |
| 2026-09-02 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Open market sale | 3,187 | $23.63 |
| 2026-08-11 | PRINS RICHARD K | Reporting person | Open market sale | 7,973 | $20.30 |
| 2026-08-07 | PETERS WILLIAM J | CFO, EVP & TREASURER | Option exercise | 5,053 | $19.79 |
| 2026-08-07 | PETERS WILLIAM J | CFO, EVP & TREASURER | Open market sale | 8,180 | $22.48 |
| 2026-07-09 | Pierce Anthony T | Reporting person | Grant / award | 7,886 | $0.00 |
| 2026-06-02 | Lee Howard | Reporting person | Tax withholding | 769 | $18.45 |
| 2026-06-01 | PRINS RICHARD K | Reporting person | Grant / award | 8,143 | $0.00 |
| 2026-06-01 | Lee Howard | Reporting person | Grant / award | 8,143 | $0.00 |
| 2026-06-01 | ZASLOFF MICHAEL A | Reporting person | Grant / award | 8,143 | $0.00 |
| 2026-06-01 | Gerst Diane G. | Reporting person | Grant / award | 8,143 | $0.00 |
| 2026-06-01 | Gaugh David Russell | Reporting person | Grant / award | 8,143 | $0.00 |
| 2026-06-01 | Deflin Gayle | Reporting person | Grant / award | 8,143 | $0.00 |
| 2026-03-15 | Liawatidewi Yakob | EVP CORP ADMIN CENTER | Tax withholding | 1,033 | $18.18 |
| 2026-03-15 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Tax withholding | 1,225 | $18.18 |
| 2026-03-15 | PETERS WILLIAM J | CFO, EVP & TREASURER | Tax withholding | 1,973 | $18.18 |
| 2026-03-15 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Tax withholding | 9,784 | $18.18 |
| 2026-03-15 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Tax withholding | 2,908 | $18.18 |
| 2026-03-10 | PETERS WILLIAM J | CFO, EVP & TREASURER | Tax withholding | 3,297 | $18.91 |
| 2026-03-10 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Tax withholding | 2,215 | $18.91 |
| 2026-03-10 | Liawatidewi Yakob | EVP CORP ADMIN CENTER | Tax withholding | 1,870 | $18.91 |
| 2026-03-10 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Tax withholding | 14,785 | $18.91 |
| 2026-03-10 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Tax withholding | 4,395 | $18.91 |
| 2026-03-09 | PETERS WILLIAM J | CFO, EVP & TREASURER | Grant / award | 58,693 | $0.00 |
| 2026-03-09 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Grant / award | 39,432 | $0.00 |
| 2026-03-09 | Liawatidewi Yakob | EVP CORP ADMIN CENTER | Grant / award | 35,450 | $0.00 |
| 2026-03-09 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Grant / award | 180,504 | $0.00 |
| 2026-03-09 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Grant / award | 72,462 | $0.00 |
| 2026-03-06 | PETERS WILLIAM J | CFO, EVP & TREASURER | Tax withholding | 2,146 | $19.34 |
| 2026-03-06 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Tax withholding | 1,357 | $19.34 |
| 2026-03-06 | Liawatidewi Yakob | EVP CORP ADMIN CENTER | Tax withholding | 1,144 | $19.34 |
| 2026-03-06 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Tax withholding | 7,773 | $19.34 |
| 2026-03-06 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Tax withholding | 3,077 | $19.34 |
| 2026-03-04 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Tax withholding | 5,769 | $19.96 |
| 2026-03-04 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Tax withholding | 2,432 | $19.96 |
Recent SEC filings
Official company reports and insider transaction filings. Form 4 reports a transaction; it does not by itself explain why it happened.
Source: SEC EDGAR submissions · updated 2026-10-22 06:29 UTC
| Filed | Form | Report period | Official filing |
|---|---|---|---|
| 2026-09-23 | 4 | 2026-09-21 | View on SEC.gov → |
| 2026-09-17 | 4 | 2026-09-16 | View on SEC.gov → |
| 2026-09-03 | 4 | 2026-09-02 | View on SEC.gov → |
| 2026-08-12 | 4 | 2026-08-11 | View on SEC.gov → |
| 2026-08-11 | 4 | 2026-08-07 | View on SEC.gov → |
| 2026-08-06 | 10-Q | 2026-06-30 | View on SEC.gov → |
| 2026-08-06 | 8-K | 2026-08-06 | View on SEC.gov → |
| 2026-07-13 | 4 | 2026-07-09 | View on SEC.gov → |
| 2026-07-13 | 8-K | 2026-07-09 | View on SEC.gov → |
| 2026-07-08 | 8-K | 2026-07-02 | View on SEC.gov → |
| 2026-06-03 | 4 | 2024-08-19 | View on SEC.gov → |
| 2026-06-03 | 4 | 2026-06-01 | View on SEC.gov → |
Recent news
Headlines about AMPH (Amphastar Pharmaceuticals, Inc.). Links open the publisher — we don’t host full articles.
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MarketBeat · 2026-10-21 -
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Amphastar Pharmaceuticals, Inc. (AMPH) Stock Forecasts
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1 Safe-and-Steady Stock to Research Further and 2 Facing Challenges
Yahoo · 2026-10-08
No headlines in this category right now — try “All”.