A detailed history of Charles Schwab Investment Management Inc transactions in Amphastar Pharmaceuticals, Inc. stock. As of the latest transaction made, Charles Schwab Investment Management Inc holds 350,056 shares of AMPH stock, worth $15.6 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares
350,056
Previous 359,222 2.55%
Holding current value
$15.6 Million
Previous $14.4 Million 18.23%
% of portfolio
0.0%
Previous 0.0%

Shares

29 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2024

Nov 12, 2024

SELL
$36.99 - $50.09 $339,050 - $459,124
-9,166 Reduced 2.55%
350,056 $17 Million
Q2 2024

Aug 12, 2024

BUY
$38.65 - $43.48 $108,877 - $122,483
2,817 Added 0.79%
359,222 $14.4 Million
Q1 2024

May 08, 2024

SELL
$42.85 - $63.45 $988,763 - $1.46 Million
-23,075 Reduced 6.08%
356,405 $15.6 Million
Q4 2023

Feb 06, 2024

BUY
$44.49 - $62.93 $1.21 Million - $1.71 Million
27,102 Added 7.69%
379,480 $23.5 Million
Q3 2023

Nov 08, 2023

BUY
$45.51 - $65.0 $1.1 Million - $1.57 Million
24,116 Added 7.35%
352,378 $16.2 Million
Q2 2023

Aug 09, 2023

SELL
$35.77 - $58.38 $59,056 - $96,385
-1,651 Reduced 0.5%
328,262 $18.9 Million
Q1 2023

May 11, 2023

BUY
$27.99 - $37.92 $87,468 - $118,500
3,125 Added 0.96%
329,913 $12.4 Million
Q4 2022

Feb 13, 2023

BUY
$27.93 - $31.27 $544,495 - $609,608
19,495 Added 6.34%
326,788 $9.16 Million
Q3 2022

Nov 14, 2022

SELL
$27.56 - $37.75 $206,700 - $283,125
-7,500 Reduced 2.38%
307,293 $8.64 Million
Q2 2022

Aug 15, 2022

BUY
$29.79 - $42.29 $1.38 Million - $1.96 Million
46,395 Added 17.29%
314,793 $11 Million
Q1 2022

May 13, 2022

BUY
$22.96 - $36.45 $171,350 - $272,026
7,463 Added 2.86%
268,398 $9.64 Million
Q4 2021

Feb 11, 2022

BUY
$18.14 - $23.29 $148,167 - $190,232
8,168 Added 3.23%
260,935 $6.08 Million
Q3 2021

Nov 16, 2021

SELL
$17.83 - $21.49 $11,054 - $13,323
-620 Reduced 0.24%
252,767 $4.81 Million
Q2 2021

Aug 16, 2021

BUY
$17.11 - $20.92 $93,899 - $114,808
5,488 Added 2.21%
253,387 $5.11 Million
Q1 2021

May 17, 2021

BUY
$17.21 - $20.65 $98,974 - $118,758
5,751 Added 2.37%
247,899 $4.54 Million
Q4 2020

Feb 16, 2021

BUY
$17.76 - $21.24 $89,084 - $106,539
5,016 Added 2.12%
242,148 $4.87 Million
Q3 2020

Nov 13, 2020

BUY
$17.99 - $22.22 $162,467 - $200,668
9,031 Added 3.96%
237,132 $4.45 Million
Q2 2020

Aug 14, 2020

BUY
$14.25 - $22.46 $114,128 - $179,882
8,009 Added 3.64%
228,101 $5.12 Million
Q1 2020

May 15, 2020

BUY
$12.66 - $20.08 $50,424 - $79,978
3,983 Added 1.84%
220,092 $3.27 Million
Q4 2019

Feb 07, 2020

BUY
$17.07 - $20.64 $66,641 - $80,578
3,904 Added 1.84%
216,109 $4.17 Million
Q3 2019

Nov 08, 2019

BUY
$19.12 - $22.62 $516 - $610
27 Added 0.01%
212,205 $4.21 Million
Q2 2019

Aug 09, 2019

BUY
$18.92 - $22.96 $427,932 - $519,309
22,618 Added 11.93%
212,178 $4.48 Million
Q1 2019

May 14, 2019

SELL
$19.46 - $25.28 $60,248 - $78,266
-3,096 Reduced 1.61%
189,560 $3.87 Million
Q4 2018

Feb 14, 2019

SELL
$17.72 - $22.51 $40,330 - $51,232
-2,276 Reduced 1.17%
192,656 $3.83 Million
Q3 2018

Nov 13, 2018

BUY
$15.39 - $19.38 $8,572 - $10,794
557 Added 0.29%
194,932 $3.75 Million
Q2 2018

Aug 08, 2018

BUY
$14.63 - $19.6 $170,088 - $227,869
11,626 Added 6.36%
194,375 $2.97 Million
Q1 2018

May 07, 2018

SELL
$17.23 - $20.35 $61,890 - $73,097
-3,592 Reduced 1.93%
182,749 $3.43 Million
Q4 2017

Jan 17, 2018

SELL
$17.76 - $19.75 $27,687 - $30,790
-1,559 Reduced 0.83%
186,341 $3.59 Million
Q3 2017

Nov 13, 2017

BUY
$14.73 - $17.99 $2.77 Million - $3.38 Million
187,900
187,900 $3.36 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 $2.19B
  • 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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