A detailed history of Dimensional Fund Advisors LP transactions in Amphastar Pharmaceuticals, Inc. stock. As of the latest transaction made, Dimensional Fund Advisors LP holds 1,183,830 shares of AMPH stock, worth $47.4 Million. This represents 0.01% of its overall portfolio holdings.

Number of Shares
1,183,830
Previous 1,339,142 11.6%
Holding current value
$47.4 Million
Previous $82.8 Million 37.24%
% of portfolio
0.01%
Previous 0.02%

Shares

14 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q1 2024

May 10, 2024

SELL
$42.85 - $63.45 $6.66 Million - $9.85 Million
-155,312 Reduced 11.6%
1,183,830 $52 Million
Q4 2023

Feb 07, 2024

SELL
$44.49 - $62.93 $24.4 Million - $34.5 Million
-548,596 Reduced 29.06%
1,339,142 $82.8 Million
Q3 2023

Nov 09, 2023

SELL
$45.51 - $65.0 $1.95 Million - $2.79 Million
-42,877 Reduced 2.22%
1,887,738 $86.8 Million
Q2 2023

Aug 09, 2023

BUY
$35.77 - $58.38 $466,583 - $761,508
13,044 Added 0.68%
1,930,615 $111 Million
Q1 2023

May 12, 2023

BUY
$27.99 - $37.92 $1.43 Million - $1.93 Million
51,027 Added 2.73%
1,917,571 $71.9 Million
Q4 2022

Feb 09, 2023

BUY
$27.93 - $31.27 $765,561 - $857,110
27,410 Added 1.49%
1,866,544 $52.3 Million
Q3 2022

Nov 10, 2022

BUY
$27.56 - $37.75 $360,787 - $494,185
13,091 Added 0.72%
1,839,134 $51.7 Million
Q2 2022

Aug 12, 2022

BUY
$29.79 - $42.29 $886,967 - $1.26 Million
29,774 Added 1.66%
1,826,043 $63.5 Million
Q1 2022

May 13, 2022

BUY
$22.96 - $36.45 $583,597 - $926,486
25,418 Added 1.44%
1,796,269 $64.5 Million
Q4 2021

Feb 09, 2022

BUY
$18.14 - $23.29 $470,479 - $604,049
25,936 Added 1.49%
1,770,851 $41.2 Million
Q3 2021

Nov 12, 2021

BUY
$17.83 - $21.49 $874,062 - $1.05 Million
49,022 Added 2.89%
1,744,915 $33.2 Million
Q2 2021

Aug 12, 2021

BUY
$17.11 - $20.92 $116,416 - $142,339
6,804 Added 0.4%
1,695,893 $34.2 Million
Q1 2021

May 14, 2021

SELL
$17.21 - $20.65 $2.04 Million - $2.44 Million
-118,296 Reduced 6.55%
1,689,089 $31 Million
Q4 2020

Feb 25, 2021

BUY
$17.76 - $21.24 $32.1 Million - $38.4 Million
1,807,385 New
1,807,385 $36.3 Million

Others Institutions Holding AMPH

About Amphastar Pharmaceuticals, Inc.


  • Ticker AMPH
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Drug Manufacturers—Specialty & Generic
  • Shares Outstandng 49,015,200
  • Market Cap $1.96B
  • Description
  • Amphastar Pharmaceuticals, Inc., a bio-pharmaceutical company, develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products in the United States, China, and France. The company operates through two segments, Finished Pharmaceutical Products and API. It offers Primatene Mist, an over-the-count...
More about AMPH
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