AMPH Institutional Ownership
Amphastar Pharmaceuticals, Inc.
1W: -2.6%
1M: -2.5%
3M: +26.4%
YTD: -3.7%
1Y: +3.0%
3Y: -43.2%
5Y: +33.8%
$25.57
+0.10 (+0.39%)
After Hours: $24.50 (-1.07, -4.18%)
Weekly Expected Move ±4.8%
$23
$24
$25
$26
$28
Credit Risk of going bust: higher than 70% of companies Debt: 38.8% of company value Bonds: none of note held by US funds details ▾
Of US companies ranked in the middle of the pack, about 1 in 580 filed for bankruptcy within a year (2020-2025).
If the stock fell to about $1.35 (down 95%), Amphastar Pharmaceuticals, Inc. would be worth roughly what it owes.
Total debt $688.3M against a stock market value of $1.08B.
Distance to default 3.43 (Merton model): prices to 2026-10-26, balance sheet 2026-06-30, debt counted $307.3M (short-term plus half of long-term), stock volatility 53.9%; Altman Z 2.15. A ranking and a back-test, not a forecast.
US fund filings (SEC N-PORT) show under $25M of this company's bonds, so there is no bond page. Its debt may be bank loans or privately placed. How these are computed.
If the stock fell to about $1.35 (down 95%), Amphastar Pharmaceuticals, Inc. would be worth roughly what it owes.
Total debt $688.3M against a stock market value of $1.08B.
Distance to default 3.43 (Merton model): prices to 2026-10-26, balance sheet 2026-06-30, debt counted $307.3M (short-term plus half of long-term), stock volatility 53.9%; Altman Z 2.15. A ranking and a back-test, not a forecast.
US fund filings (SEC N-PORT) show under $25M of this company's bonds, so there is no bond page. Its debt may be bank loans or privately placed. How these are computed.
Overview
News
Chart
Smart Money
Financials
Income Statement
Cash Flow
Balance Sheet
Earnings
Dividends
Analysis
Technicals
Weather
Peers
ESG
Institutions
ETF Exposure
Dark Pool
Short Interest
Supply Chain
Institutional Ownership — AMPH
244
Institutional Holders
-15 vs prior quarter
0.0%
Ownership
+0.00pp
$559M
Total Invested
34
New Positions
63
Increased
109
Reduced
33
Closed
0.33
Put/Call Ratio
Ownership Trends
Top Institutional Holders (282 total)
| # | Holder | Shares | Value | Change | Change % | Holding Period | Filing |
|---|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 5,224,934 | $133M | -196,409 | -3.6% | 8Q | SEC ↗ |
| 2 | DIMENSIONAL FUND ADVISORS LP | 2,305,107 | $59M | +277,160 | +13.7% | 43Q | SEC ↗ |
| 3 | STATE STREET CORP | 1,642,126 | $42M | +34,611 | +2.2% | 46Q | SEC ↗ |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 1,481,952 | $38M | -61,703 | -4.0% | 2Q | SEC ↗ |
| 5 | AMERICAN CENTURY COMPANIES INC | 1,176,626 | $30M | +159,088 | +15.6% | 15Q | SEC ↗ |
| 6 | MARSHALL WACE, LLP | 1,066,322 | $27M | +40,682 | +4.0% | 9Q | SEC ↗ |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 969,840 | $25M | -6,810 | -0.7% | 48Q | SEC ↗ |
| 8 | FULLER & THALER ASSET MANAGEMENT, INC. | 949,238 | $24M | -445,901 | -32.0% | 25Q | SEC ↗ |
| 9 | D. E. Shaw & Co., Inc. | 887,048 | $23M | +221,506 | +33.3% | 8Q | SEC ↗ |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | 809,568 | $21M | +21,752 | +2.8% | 2Q | SEC ↗ |
| 11 | LSV ASSET MANAGEMENT | 642,014 | $16M | -9,700 | -1.5% | 21Q | SEC ↗ |
| 12 | RENAISSANCE TECHNOLOGIES LLC | 525,100 | $13M | -28,800 | -5.2% | 35Q | SEC ↗ |
| 13 | GOLDMAN SACHS GROUP INC | 505,360 | $13M | +175,972 | +53.4% | 15Q | SEC ↗ |
| 14 | SYSTEMATIC FINANCIAL MANAGEMENT LP | 437,384 | $11M | -15,514 | -3.4% | 7Q | SEC ↗ |
| 15 | MORGAN STANLEY | 434,840 | $11M | +14,503 | +3.5% | 48Q | SEC ↗ |
| 16 | UBS Group AG | 393,110 | $10M | -27,153 | -6.5% | 47Q | SEC ↗ |
| 17 | HRT FINANCIAL LP | 387,530 | $10M | +331,349 | +589.8% | 2Q | SEC ↗ |
| 18 | DENALI ADVISORS LLC | 375,965 | $10M | +109,500 | +41.1% | 4Q | SEC ↗ |
| 19 | NORTHERN TRUST CORP | 370,991 | $9M | -1,288 | -0.3% | 48Q | SEC ↗ |
| 20 | Bridge City Capital, LLC | 338,708 | $9M | +3,603 | +1.1% | 13Q | SEC ↗ |
| 21 | Sixth Street Partners Management Compa NEW | 310,178 | $8M | — | +0.0% | 1Q | SEC ↗ |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT I | 310,178 | $8M | -10,861 | -3.4% | 15Q | SEC ↗ |
| 23 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 298,954 | $8M | -31,503 | -9.5% | 5Q | SEC ↗ |
| 24 | ROYCE & ASSOCIATES LP | 294,758 | $8M | -111,417 | -27.4% | 9Q | SEC ↗ |
| 25 | TWO SIGMA INVESTMENTS, LP | 248,115 | $6M | +109,967 | +79.6% | 13Q | SEC ↗ |
| 26 | FIRST TRUST ADVISORS LP | 246,951 | $6M | +96,360 | +64.0% | 15Q | SEC ↗ |
| 27 | Pacer Advisors, Inc. | 241,181 | $6M | -20,302 | -7.8% | 13Q | SEC ↗ |
| 28 | Bank of New York Mellon Corp | 232,343 | $6M | -10,883 | -4.5% | 48Q | SEC ↗ |
| 29 | VANGUARD FIDUCIARY TRUST CO | 224,478 | $6M | -6,566 | -2.8% | 2Q | SEC ↗ |
| 30 | AQR CAPITAL MANAGEMENT LLC | 208,651 | $5M | +129,873 | +164.9% | 44Q | SEC ↗ |
| 31 | PRINCIPAL FINANCIAL GROUP INC | 204,250 | $5M | -4,881 | -2.3% | 40Q | SEC ↗ |
| 32 | NEW YORK STATE COMMON RETIREMENT FUND | 181,122 | $5M | +32,400 | +21.8% | 45Q | SEC ↗ |
| 33 | JANE STREET GROUP, LLC | 178,734 | $5M | +86,259 | +93.3% | 19Q | SEC ↗ |
| 34 | Empowered Funds, LLC | 162,812 | $4M | -18,520 | -10.2% | 5Q | SEC ↗ |
| 35 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 159,427 | $4M | +55,498 | +53.4% | 5Q | SEC ↗ |
| 36 | Invesco Ltd. | 158,064 | $4M | -446,710 | -73.9% | 42Q | SEC ↗ |
| 37 | VICTORY CAPITAL MANAGEMENT INC | 149,612 | $4M | -100,005 | -40.1% | 28Q | SEC ↗ |
| 38 | Universal- Beteiligungs- und Servicege | 139,402 | $4M | — | +0.0% | 3Q | SEC ↗ |
| 39 | BANK OF AMERICA CORP /DE | 136,824 | $3M | -37,499 | -21.5% | 15Q | SEC ↗ |
| 40 | ALGERT GLOBAL LLC | 131,400 | $3M | +69,040 | +110.7% | 6Q | SEC ↗ |
| 41 | LAM GROUP, INC. | 130,800 | $3M | — | +0.0% | 15Q | SEC ↗ |
| 42 | NORDEA INVESTMENT MANAGEMENT AB | 126,931 | $3M | +3,107 | +2.5% | 38Q | SEC ↗ |
| 43 | BESSEMER GROUP INC | 121,345 | $3M | -701 | -0.6% | 18Q | SEC ↗ |
| 44 | ARROWSTREET CAPITAL, LIMITED PARTNERSH | 116,653 | $3M | -208,638 | -64.1% | 5Q | SEC ↗ |
| 45 | Public Sector Pension Investment Board | 116,648 | $3M | -9,926 | -7.8% | 40Q | SEC ↗ |
| 46 | Nuveen, LLC | 88,397 | $2M | +11,802 | +15.4% | 6Q | SEC ↗ |
| 47 | Vanguard Global Advisers, LLC | 87,639 | $2M | +37,476 | +74.7% | 2Q | SEC ↗ |
| 48 | EXCHANGE TRADED CONCEPTS, LLC | 87,054 | $2M | +4,638 | +5.6% | 6Q | SEC ↗ |
| 49 | RHUMBLINE ADVISERS | 80,454 | $2M | -3,267 | -3.9% | 45Q | SEC ↗ |
| 50 | Squarepoint Ops LLC | 78,795 | $2M | +50,450 | +178.0% | 15Q | SEC ↗ |
Recent Activity
New Positions (20)
| Holder | Shares | Value |
|---|---|---|
| Sixth Street Partners Management Co | 310,178 | $8M |
| Jump Financial, LLC | 56,781 | $1M |
| Point72 Asset Management, L.P. | 54,964 | $1M |
| Y-Intercept (Hong Kong) Ltd | 34,704 | $884K |
| Engineers Gate Manager LP | 30,191 | $769K |
| Campbell & CO Investment Adviser LL | 23,211 | $591K |
| Quantinno Capital Management LP | 20,827 | $530K |
| Jupiter Topco LLC | 16,868 | $430K |
| FOX RUN MANAGEMENT, L.L.C. | 14,556 | $371K |
| Jain Global LLC | 14,183 | $361K |
| ALLSTATE CORP | 11,353 | $289K |
| Significant Wealth Partners LLC | 10,424 | $265K |
| Gotham Asset Management, LLC | 10,139 | $258K |
| MERCER GLOBAL ADVISORS INC /ADV | 9,143 | $233K |
| State of Wyoming | 7,022 | $179K |
| New Age Alpha Advisors, LLC | 3,147 | $80K |
| Quantbot Technologies LP | 1,924 | $49K |
| Fulcrum Asset Management LLP | 1,750 | $45K |
| Nykredit A/S | 595 | $15K |
| HUNTINGTON NATIONAL BANK | 525 | $13K |
Sold Out (20)
| Holder | Prev Shares | Prev Value |
|---|---|---|
| TD Asset Management Inc | 1,541,044 | $39M |
| Boston Trust Walden Corp | 944,789 | $24M |
| Epoch Investment Partners, Inc. | 898,895 | $23M |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT | 402,563 | $10M |
| Clark Capital Management Group, Inc | 317,482 | $8M |
| RICE HALL JAMES & ASSOCIATES, LLC | 187,348 | $5M |
| Qube Research & Technologies Ltd | 111,439 | $3M |
| Balyasny Asset Management L.P. | 77,467 | $2M |
| Susquehanna Portfolio Strategies, L | 66,969 | $2M |
| HUSSMAN STRATEGIC ADVISORS, INC. | 63,000 | $2M |
| CIBC WORLD MARKET INC. | 62,192 | $2M |
| Trexquant Investment LP | 47,867 | $1M |
| HSBC HOLDINGS PLC | 38,017 | $968K |
| Freestone Grove Partners LP | 29,857 | $760K |
| Arkadios Wealth Advisors | 26,303 | $670K |
| DekaBank Deutsche Girozentrale | 20,848 | $531K |
| Round Rock Advisors LLC | 20,495 | $522K |
| LPL Financial LLC | 19,844 | $505K |
| Verition Fund Management LLC | 18,597 | $474K |
| nVerses Capital, LLC | 17,685 | $450K |
Biggest Increases (20)
| Holder | Added | Change % | Total Shares |
|---|---|---|---|
| HRT FINANCIAL LP | +331,349 | +589.8% | 387,530 |
| DIMENSIONAL FUND ADVISORS LP | +277,160 | +13.7% | 2,305,107 |
| D. E. Shaw & Co., Inc. | +221,506 | +33.3% | 887,048 |
| GOLDMAN SACHS GROUP INC | +175,972 | +53.4% | 505,360 |
| AMERICAN CENTURY COMPANIES INC | +159,088 | +15.6% | 1,176,626 |
| AQR CAPITAL MANAGEMENT LLC | +129,873 | +164.9% | 208,651 |
| TWO SIGMA INVESTMENTS, LP | +109,967 | +79.6% | 248,115 |
| DENALI ADVISORS LLC | +109,500 | +41.1% | 375,965 |
| FIRST TRUST ADVISORS LP | +96,360 | +64.0% | 246,951 |
| JANE STREET GROUP, LLC | +86,259 | +93.3% | 178,734 |
| ALGERT GLOBAL LLC | +69,040 | +110.7% | 131,400 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | +55,498 | +53.4% | 159,427 |
| Squarepoint Ops LLC | +50,450 | +178.0% | 78,795 |
| MARSHALL WACE, LLP | +40,682 | +4.0% | 1,066,322 |
| Vanguard Global Advisers, LLC | +37,476 | +74.7% | 87,639 |
| SUSQUEHANNA INTERNATIONAL GROUP, LL | +35,964 | +246.3% | 50,565 |
| Creative Planning | +35,041 | +213.6% | 51,444 |
| STATE STREET CORP | +34,611 | +2.2% | 1,642,126 |
| NEW YORK STATE COMMON RETIREMENT FU | +32,400 | +21.8% | 181,122 |
| FMR LLC | +27,664 | +2137.9% | 28,958 |
Biggest Decreases (20)
| Holder | Reduced | Change % | Total Shares |
|---|---|---|---|
| Invesco Ltd. | -446,710 | -73.9% | 158,064 |
| FULLER & THALER ASSET MANAGEMENT, I | -445,901 | -32.0% | 949,238 |
| MILLENNIUM MANAGEMENT LLC | -339,559 | -91.4% | 31,814 |
| ARROWSTREET CAPITAL, LIMITED PARTNE | -208,638 | -64.1% | 116,653 |
| BlackRock, Inc. | -196,409 | -3.6% | 5,224,934 |
| VOLORIDGE INVESTMENT MANAGEMENT, LL | -120,276 | -70.3% | 50,912 |
| FRANKLIN RESOURCES INC | -114,319 | -82.1% | 24,986 |
| ROYCE & ASSOCIATES LP | -111,417 | -27.4% | 294,758 |
| BNP PARIBAS FINANCIAL MARKETS | -101,414 | -65.0% | 54,663 |
| VICTORY CAPITAL MANAGEMENT INC | -100,005 | -40.1% | 149,612 |
| VANGUARD CAPITAL MANAGEMENT LLC | -61,703 | -4.0% | 1,481,952 |
| CITADEL ADVISORS LLC | -49,309 | -75.2% | 16,231 |
| JPMORGAN CHASE & CO | -47,011 | -45.0% | 57,563 |
| XTX Topco Ltd | -40,928 | -46.6% | 46,808 |
| BANK OF AMERICA CORP /DE | -37,499 | -21.5% | 136,824 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | -31,503 | -9.5% | 298,954 |
| RENAISSANCE TECHNOLOGIES LLC | -28,800 | -5.2% | 525,100 |
| Illumine Investment Management, LLC | -28,078 | -100.0% | 0 |
| UBS Group AG | -27,153 | -6.5% | 393,110 |
| Pacer Advisors, Inc. | -20,302 | -7.8% | 241,181 |