Latest Institutional Purchases of Amphastar Pharmaceuticals, Inc. (AMPH)
This list provides information on the latest institutional transactions involving Amphastar Pharmaceuticals, Inc. (AMPH) stock that were buys. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the purchase has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Aug 14, 2025
Q2 2025
|
Royal Bank Of Canada
Toronto, A6 |
BUY
|
- |
293K+ 1122.12% |
$6.72M - $8.28M
|
319K
$9.67M
|
|
|
Aug 12, 2025
Q2 2025
|
Dimensional Fund Advisors LP
Austin, TX |
BUY
|
- |
271K+ 19.94% |
$6.21M - $7.65M
|
1.63M
$49.4M
|
|
|
Aug 14, 2025
Q2 2025
|
D. E. Shaw & Co., Inc.
New York, NY |
BUY
|
- |
265K+ 907.02% |
$6.08M - $7.49M
|
294K
$8.92M
|
|
|
Aug 11, 2025
Q2 2025
|
Vanguard Group Inc
Valley Forge, PA |
BUY
|
- |
264K+ 10.9% |
$6.06M - $7.47M
|
2.69M
$81.5M
|
|
|
Aug 14, 2025
Q2 2025
|
Qube Research & Technologies LTD
London, X0 |
BUY
|
- |
211K+ 81.28% |
$4.83M - $5.96M
|
469K
$14.2M
|
|
|
Jul 11, 2025
Q2 2025
|
Cx Institutional
|
BUY
|
- |
181K+ 220.5% |
$4.16M - $5.12M
|
263K
$7.99M
|
|
|
Aug 15, 2025
Q2 2025
|
Morgan Stanley
New York, NY |
BUY
|
- |
159K+ 30.47% |
$3.65M - $4.5M
|
681K
$20.7M
|
|
|
Aug 14, 2025
Q2 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
BUY
|
- |
136K+ 87.43% |
$3.13M - $3.86M
|
292K
$8.87M
|
|
|
Aug 14, 2025
Q2 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
- |
113K+ 243.05% |
$2.6M - $3.21M
|
160K
$4.86M
|
|
|
Aug 14, 2025
Q2 2025
|
Voloridge Investment Management, LLC
Jupiter, FL |
BUY
|
- |
110K+ 50.7% |
$2.51M - $3.1M
|
326K
$9.88M
|
|
|
Aug 13, 2025
Q2 2025
|
Algert Global LLC
San Francisco, CA |
BUY
|
- |
107K+ 618.44% |
$2.46M - $3.03M
|
124K
$3.77M
|
|
|
Aug 14, 2025
Q2 2025
|
Balyasny Asset Management LLC
Chicago, IL |
BUY
|
- |
104K+ 64.25% |
$2.39M - $2.95M
|
266K
$8.08M
|
|
|
Aug 13, 2025
Q2 2025
|
Hotchkis & Wiley Capital Management LLC
Los Angeles, CA |
BUY
|
- |
95.8K+ 35.45% |
$2.2M - $2.71M
|
366K
$11.1M
|
|
|
Aug 14, 2025
Q2 2025
|
Raymond James Financial Inc
St. Petersburg, FL |
BUY
|
- |
87.4K+ 294.71% |
$2.01M - $2.47M
|
117K
$3.55M
|
|
|
Aug 14, 2025
Q2 2025
|
Bridgeway Capital Management, LLC
Houston, TX |
BUY
|
- |
85.1KNew |
$1.95M - $2.41M
|
85.1K
$2.58M
|
|
|
Aug 11, 2025
Q2 2025
|
Empowered Funds, LLC
|
BUY
|
- |
85.1KNew |
$1.95M - $2.41M
|
85.1K
$2.58M
|
|
|
Aug 13, 2025
Q2 2025
|
Jim Simons
Renaissance Technologies LLC | New York, Ny
|
BUY
|
- |
81.5K+ 16.46% |
$1.87M - $2.31M
|
577K
$17.5M
|
|
|
Aug 13, 2025
Q2 2025
|
Arrowstreet Capital, Limited Partnership
Boston, MA |
BUY
|
- |
81.2KNew |
$1.87M - $2.3M
|
81.2K
$2.47M
|
|
|
Aug 13, 2025
Q2 2025
|
First Trust Advisors LP
Wheaton, IL |
BUY
|
- |
76.5K+ 428.26% |
$1.76M - $2.16M
|
94.3K
$2.86M
|
|
|
Aug 12, 2025
Q2 2025
|
Trexquant Investment LP
Stamford, CT |
BUY
|
- |
63.9K+ 70.04% |
$1.47M - $1.81M
|
155K
$4.71M
|
|
|
Aug 13, 2025
Q2 2025
|
Jump Financial, LLC
Chicago, IL |
BUY
|
- |
63.3KNew |
$1.45M - $1.79M
|
63.3K
$1.92M
|
|
|
Aug 14, 2025
Q2 2025
|
Twinbeech Capital LP
Purchase, NY |
BUY
|
- |
44.5K+ 101.27% |
$1.02M - $1.26M
|
88.5K
$2.69M
|
|
|
Aug 13, 2025
Q2 2025
|
Capital Fund Management S.A.
Paris, I0 |
BUY
|
- |
40.6KNew |
$931K - $1.15M
|
40.6K
$1.23M
|
|
|
Aug 14, 2025
Q2 2025
|
Brevan Howard Capital Management LP
St. Helier, Y9 |
BUY
|
- |
40.3K+ 469.83% |
$926K - $1.14M
|
48.9K
$1.48M
|
|
|
Aug 12, 2025
Q2 2025
|
O'Shaughnessy Asset Management, LLC
Stamford, CT |
BUY
|
- |
40.3KNew |
$925K - $1.14M
|
40.3K
$1.22M
|
|
|
Aug 13, 2025
Q2 2025
|
Quantbot Technologies LP
New York, NY |
BUY
|
- |
39.8K+ 188.76% |
$915K - $1.13M
|
61K
$1.85M
|
|
|
Aug 14, 2025
Q2 2025
|
Susquehanna Portfolio Strategies, LLC
Bala Cynwyd, PA |
BUY
|
- |
39.6KNew |
$908K - $1.12M
|
39.6K
$1.2M
|
|
|
Aug 14, 2025
Q2 2025
|
Bank Of America Corp
Charlotte, NC |
BUY
|
- |
38.4K+ 36.02% |
$882K - $1.09M
|
145K
$4.4M
|
|
|
Aug 13, 2025
Q2 2025
|
Edgestream Partners, L.P.
Princeton, NJ |
BUY
|
- |
37.1KNew |
$852K - $1.05M
|
37.1K
$1.13M
|
|
|
Aug 11, 2025
Q2 2025
|
Royce & Associates LP
|
BUY
|
- |
35.3K+ 14.25% |
$811K - $999K
|
283K
$8.59M
|
|
|
Aug 13, 2025
Q2 2025
|
Systematic Financial Management LP
Teaneck, NJ |
BUY
|
- |
32.8K+ 10.03% |
$752K - $927K
|
359K
$10.9M
|
|
|
Aug 13, 2025
Q2 2025
|
Invesco Ltd.
Atlanta, GA |
BUY
|
- |
27.8K+ 7.75% |
$639K - $787K
|
387K
$11.7M
|
|
|
Aug 08, 2025
Q2 2025
|
Sg Americas Securities, LLC
|
BUY
|
- |
24.4KNew |
$561K - $692K
|
24.4K
$742K
|
|
|
Aug 13, 2025
Q2 2025
|
Centiva Capital, LP
New York, NY |
BUY
|
- |
24.2KNew |
$555K - $684K
|
24.2K
$733K
|
|
|
Aug 13, 2025
Q2 2025
|
Bridge City Capital, LLC
Lake Oswego, OR |
BUY
|
- |
22.8K+ 19.67% |
$523K - $645K
|
139K
$4.21M
|
|
|
Aug 08, 2025
Q2 2025
|
Creative Planning
Overland Park, KS |
BUY
|
- |
22.5K+ 111.76% |
$516K - $636K
|
42.6K
$1.29M
|
|
|
Aug 14, 2025
Q2 2025
|
Aqr Capital Management LLC
Greenwich, CT |
BUY
|
- |
22.2K+ 41.4% |
$510K - $628K
|
75.8K
$2.3M
|
|
|
Aug 06, 2025
Q2 2025
|
Fox Run Management, L.L.C.
Greenwich, CT |
BUY
|
- |
21.2KNew |
$487K - $600K
|
21.2K
$643K
|
|
|
Aug 14, 2025
Q2 2025
|
Aquatic Capital Management LLC
Chicago, IL |
BUY
|
- |
21.2KNew |
$487K - $600K
|
21.2K
$643K
|
|
|
Aug 12, 2025
Q2 2025
|
Charles Schwab Investment Management Inc
San Francisco, CA |
BUY
|
- |
20.6K+ 6.3% |
$472K - $582K
|
347K
$10.5M
|
|
|
Aug 08, 2025
Q2 2025
|
Geode Capital Management, LLC
Boston, MA |
BUY
|
- |
18.2K+ 1.9% |
$417K - $514K
|
973K
$29.5M
|
|
|
Aug 01, 2025
Q2 2025
|
Y Intercept (Hong Kong) LTD
|
BUY
|
- |
17.7KNew |
$407K - $501K
|
17.7K
$538K
|
|
|
Jul 31, 2025
Q2 2025
|
Quest Partners LLC
New York, NY |
BUY
|
- |
17.3K+ 149.13% |
$397K - $489K
|
28.9K
$877K
|
|
|
Aug 14, 2025
Q2 2025
|
Vident Advisory, LLC
Alpharetta, GA |
BUY
|
- |
17.3KNew |
$397K - $489K
|
17.3K
$524K
|
|
|
Aug 14, 2025
Q2 2025
|
Occudo Quantitative Strategies LP
Fort Lauderdale, FL |
BUY
|
- |
15.8KNew |
$362K - $446K
|
15.8K
$479K
|
|
|
Aug 13, 2025
Q2 2025
|
Barclays PLC
London, X0 |
BUY
|
- |
15.1K+ 22.61% |
$347K - $428K
|
82.1K
$2.49M
|
|
|
Aug 14, 2025
Q2 2025
|
Engineers Gate Manager LP
New York, NY |
BUY
|
- |
14.8K+ 38.4% |
$340K - $419K
|
53.3K
$1.62M
|
|
|
Aug 14, 2025
Q2 2025
|
Ameriprise Financial Inc
Minneapolis, MN |
BUY
|
- |
14.7K+ 9.48% |
$338K - $416K
|
170K
$5.15M
|
|
|
Aug 14, 2025
Q2 2025
|
Pdt Partners, LLC
New York, NY |
BUY
|
- |
14.6KNew |
$336K - $414K
|
14.6K
$444K
|
|
|
Aug 14, 2025
Q2 2025
|
Ubs Asset Management Americas Inc
Chicago, IL |
BUY
|
- |
14.6K+ 18.41% |
$334K - $412K
|
93.7K
$2.84M
|