Latest Institutional Transactions on Amphastar Pharmaceuticals, Inc. (AMPH)
This table provides information on the latest institutional transactions involving Amphastar Pharmaceuticals, Inc. (AMPH) stock. The table includes the name of the institution, the type of operation (buy or sell), whether options were involved, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the transaction has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Jan 23, 2026
Q4 2025
|
Farther Finance Advisors, LLC
San Francisco, CA |
BUY
|
- |
437+ 46.29% |
$10.1K - $12.2K
|
1.38K
$36K
|
|
|
Jan 23, 2026
Q4 2025
|
Optima Capital LLC
Portland, OR |
BUY
|
- |
20New |
$463 - $557
|
20
$521
|
|
|
Jan 23, 2026
Q4 2025
|
Avion Wealth
The Woodlands, TX |
SELL
|
- |
-40- 32.26% |
$926 - $1.11K
|
84
$2.19K
|
|
|
Jan 23, 2026
Q4 2025
|
Assetmark, Inc
|
SELL
|
- |
-2.13K- 3.77% |
$49.2K - $59.2K
|
54.4K
$1.42M
|
|
|
Jan 23, 2026
Q4 2025
|
Private Wealth Management Group, LLC
Princeton, NJ |
SELL
|
- |
-1- 3.7% |
$23.1 - $27.8
|
26
$678
|
|
|
Jan 23, 2026
Q4 2025
|
State Of Alaska, Department Of Revenue
|
BUY
|
- |
7.13K+ 34.29% |
$165K - $198K
|
27.9K
$727K
|
|
|
Jan 21, 2026
Q4 2025
|
Capital Advisors, Ltd. LLC
|
BUY
|
- |
3+ 37.5% |
$69.4 - $83.5
|
11
$287
|
|
|
Jan 21, 2026
Q4 2025
|
Flagship Harbor Advisors, LLC
|
BUY
|
- |
25New |
$579 - $696
|
25
$652
|
|
|
Jan 21, 2026
Q4 2025
|
Yousif Capital Management, LLC
|
SELL
|
- |
-552- 5.95% |
$12.8K - $15.4K
|
8.72K
$227K
|
|
|
Jan 20, 2026
Q4 2025
|
Signaturefd, LLC
Atlanta, GA |
BUY
|
- |
20+ 3.83% |
$463 - $557
|
542
$14.1K
|
|
|
Jan 20, 2026
Q4 2025
|
Harbor Capital Advisors, Inc.
|
SELL
|
- |
-5- 1.81% |
$116 - $139
|
271
$7.06K
|
|
|
Jan 16, 2026
Q4 2025
|
Louisiana State Employees Retirement System
|
SELL
|
- |
-300- 1.82% |
$6.94K - $8.35K
|
16.2K
$422K
|
|
|
Jan 16, 2026
Q4 2025
|
Ronald Blue Trust, Inc.
Brentwood, TN |
SELL
|
- |
-528- 29.86% |
$12.2K - $14.7K
|
1.24K
$32.3K
|
|
|
Jan 15, 2026
Q4 2025
|
Nisa Investment Advisors, LLC
|
SELL
|
- |
-9- 1.43% |
$208 - $250
|
620
$16.2K
|
|
|
Jan 15, 2026
Q4 2025
|
Trust CO
|
BUY
|
- |
15New |
$347 - $417
|
15
$391
|
|
|
Jan 14, 2026
Q4 2025
|
Exchange Traded Concepts, LLC
|
SELL
|
- |
-567- 5.68% |
$13.1K - $15.8K
|
9.42K
$245K
|
|
|
Jan 14, 2026
Q4 2025
|
Spire Wealth Management
|
SELL
|
- |
-4- 1.84% |
$92.6 - $111
|
213
$5.55K
|
|
|
Jan 09, 2026
Q4 2025
|
Sg Americas Securities, LLC
|
BUY
|
- |
93.5KNew |
$2.16M - $2.6M
|
93.5K
$2.44M
|
|
|
Jan 08, 2026
Q4 2025
|
Versant Capital Management, Inc
|
BUY
|
- |
71+ 24.4% |
$1.64K - $1.98K
|
362
$9.43K
|
|
|
Jan 08, 2026
Q4 2025
|
Nordea Investment Management Ab
Stockholm, V7 |
SELL
|
- |
-24.2K- 15.79% |
$560K - $674K
|
129K
$3.37M
|
|
|
Jan 07, 2026
Q4 2025
|
Massmutual Trust CO Fsb
|
SELL
|
- |
-160- 17.26% |
$3.7K - $4.45K
|
767
$20K
|
|
|
Jan 07, 2026
Q4 2025
|
Significant Wealth Partners LLC
Cary, IL |
SELL
|
- |
-11K- 53.23% |
$253K - $305K
|
9.62K
$251K
|
|
|
Jan 02, 2026
Q4 2025
|
Gamma Investing LLC
Foster City, CA |
BUY
|
- |
462+ 37.78% |
$10.7K - $12.9K
|
1.69K
$43.9K
|
|
| Q3 2025 | |||||||
|
Dec 15, 2025
Q3 2025
|
Fny Investment Advisers, LLC
|
BUY
|
- |
1KNew |
$20.6K - $30.8K
|
1K
$26.1K
|
|
|
Dec 02, 2025
Q3 2025
|
Allworth Financial LP
|
SELL
|
- |
-70- 4.53% |
$1.44K - $2.16K
|
1.48K
$38.4K
|
|
|
Dec 02, 2025
Q3 2025
|
Ifp Advisors, Inc
|
SELL
|
- |
-666- 32.73% |
$13.7K - $20.5K
|
1.37K
$35.7K
|
|
|
Nov 21, 2025
Q3 2025
|
Bell Investment Advisors, Inc
Oakland, CA |
BUY
|
- |
16New |
$330 - $493
|
16
$417
|
|
|
Nov 21, 2025
Q3 2025
|
Cibc Private Wealth Group, LLC
|
SELL
|
- |
-76- 9.54% |
$1.57K - $2.34K
|
721
$18.8K
|
|
|
Nov 19, 2025
Q3 2025
|
Caitong International Asset Management Co., LTD
Hong Kong, K3 |
SELL
|
- |
-369- 99.19% |
$7.61K - $11.4K
|
3
$78.2
|
|
|
Nov 19, 2025
Q3 2025
|
Sunbelt Securities, Inc.
Houston, TX |
BUY
|
- |
22New |
$454 - $678
|
22
$573
|
|
|
Nov 14, 2025
Q3 2025
|
Manufacturers Life Insurance Company, The
Toronto, A6 |
SELL
|
- |
-926- 4.96% |
$19.1K - $28.5K
|
17.8K
$463K
|
|
|
Nov 14, 2025
Q3 2025
|
Tower Research Capital LLC (Trc)
New York, NY |
SELL
|
- |
-2.76K- 77.06% |
$56.9K - $85.1K
|
822
$21.4K
|
|
|
Nov 14, 2025
Q3 2025
|
Public Employees Retirement System Of Ohio
Columbus, OH |
BUY
|
- |
54+ 13.04% |
$1.11K - $1.66K
|
468
$12.2K
|
|
|
Nov 14, 2025
Q3 2025
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
SELL
|
- |
-72.4K- 76.05% |
$1.49M - $2.23M
|
22.8K
$594K
|
|
|
Nov 14, 2025
Q3 2025
|
Ameriprise Financial Inc
Minneapolis, MN |
SELL
|
- |
-40K- 23.56% |
$825K - $1.23M
|
130K
$3.38M
|
|
|
Nov 14, 2025
Q3 2025
|
Balyasny Asset Management LLC
Chicago, IL |
SELL
|
- |
-124K- 46.73% |
$2.57M - $3.83M
|
142K
$3.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Bridgeway Capital Management, LLC
Houston, TX |
BUY
|
- |
227K+ 266.97% |
$4.69M - $7M
|
312K
$8.14M
|
|
|
Nov 14, 2025
Q3 2025
|
Quantinno Capital Management LP
New York, NY |
BUY
|
- |
1.99K+ 17.67% |
$41.1K - $61.3K
|
13.3K
$346K
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna Fundamental Investments, LLC
Bala Cynwyd, PA |
SELL
|
- |
-89K- 87.62% |
$1.83M - $2.74M
|
12.6K
$328K
|
|
|
Nov 14, 2025
Q3 2025
|
Quarry LP
New York, NY |
BUY
|
- |
1.18KNew |
$24.4K - $36.4K
|
1.18K
$30.8K
|
|
|
Nov 14, 2025
Q3 2025
|
Ci Private Wealth, LLC
Miami, FL |
BUY
|
- |
15.7KNew |
$324K - $484K
|
15.7K
$410K
|
|
|
Nov 14, 2025
Q3 2025
|
Price T Rowe Associates Inc
Baltimore, MD |
BUY
|
- |
1.93K+ 0.71% |
$39.9K - $59.6K
|
275K
$7.17M
|
|
|
Nov 14, 2025
Q3 2025
|
Two Sigma Investments, LP
New York, NY |
BUY
|
- |
18.5K+ 23.15% |
$382K - $571K
|
98.7K
$2.57M
|
|
|
Nov 14, 2025
Q3 2025
|
Rockefeller Capital Management L.P.
New York, NY |
BUY
|
- |
423New |
$8.72K - $13K
|
423
$11K
|
|
|
Nov 14, 2025
Q3 2025
|
State Of Wisconsin Investment Board
Madison, WI |
SELL
|
- |
-4K- 15.78% |
$82.4K - $123K
|
21.3K
$556K
|
|
|
Nov 14, 2025
Q3 2025
|
Hrt Financial LP
New York, NY |
BUY
|
- |
35.7K+ 84.76% |
$735K - $1.1M
|
77.7K
$2.03M
|
|
|
Nov 14, 2025
Q3 2025
|
State Street Corp
Boston, MA |
SELL
|
- |
-75.5K- 4.79% |
$1.56M - $2.33M
|
1.5M
$39.1M
|
|
|
Nov 14, 2025
Q3 2025
|
Squarepoint Ops LLC
New York, NY |
BUY
|
- |
26.3K+ 114.15% |
$542K - $810K
|
49.3K
$1.29M
|
|
|
Nov 14, 2025
Q3 2025
|
Clark Capital Management Group, Inc.
Philadelphia, PA |
BUY
|
- |
284KNew |
$5.85M - $8.74M
|
284K
$7.39M
|
|
|
Nov 14, 2025
Q3 2025
|
Qube Research & Technologies LTD
London, X0 |
SELL
|
- |
-228K- 48.62% |
$4.71M - $7.03M
|
241K
$6.29M
|
|