Rhumbline Advisers Amphastar Pharmaceuticals, Inc. Transaction History

Rhumbline Advisers

  • $113 Billion
  • Q2 2025

A detailed history of Rhumbline Advisers transactions in Amphastar Pharmaceuticals, Inc. stock. As of the latest transaction made, Rhumbline Advisers holds 95,287 shares of AMPH stock, worth $2.48 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares
95,287
Previous 88,958 7.11%
Holding current value
$2.48 Million
Previous $2.58 Million 15.17%
% of portfolio
0.0%
Previous 0.0%

Shares

33 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q2 2025

Aug 12, 2025
BUY
$22.96 - $28.29 $145,313 - $179,047
6,329 Added 7.11%
95,287 $2.19 Million
Q1 2025

Apr 08, 2025
BUY
$26.24 - $38.48 $42,797 - $62,760
1,631 Added 1.87%
88,958 $2.53 Million
Q4 2024

May 29, 2025
SELL
$36.84 - $53.4 $60,086 - $87,095
-1,631 Reduced 1.83%
87,327 $3.24 Million
Q4 2024

Jan 30, 2025
BUY
$36.84 - $53.4 $44,686 - $64,774
1,213 Added 1.41%
87,327 $3.24 Million
Q3 2024

Nov 12, 2024
SELL
$36.99 - $50.09 $165,456 - $224,052
-4,473 Reduced 4.94%
86,114 $4.18 Million
Q2 2024

Aug 01, 2024
BUY
$38.65 - $43.48 $53,878 - $60,611
1,394 Added 1.56%
90,587 $3.62 Million
Q1 2024

May 09, 2024
SELL
$42.85 - $63.45 $194,838 - $288,507
-4,547 Reduced 4.85%
89,193 $3.92 Million
Q4 2023

Feb 08, 2024
BUY
$44.49 - $62.93 $10,143 - $14,348
228 Added 0.24%
93,740 $5.8 Million
Q3 2023

Nov 09, 2023
BUY
$45.51 - $65.0 $116,460 - $166,335
2,559 Added 2.81%
93,512 $4.3 Million
Q2 2023

Aug 08, 2023
SELL
$35.77 - $58.38 $500 - $817
-14 Reduced 0.02%
90,953 $5.23 Million
Q1 2023

May 11, 2023
BUY
$27.99 - $37.92 $184,985 - $250,613
6,609 Added 7.83%
90,967 $3.41 Million
Q4 2022

Feb 14, 2023
SELL
$27.93 - $31.27 $6,368 - $7,129
-228 Reduced 0.27%
84,358 $2.36 Million
Q3 2022

Nov 10, 2022
BUY
$27.56 - $37.75 $148,796 - $203,812
5,399 Added 6.82%
84,586 $2.38 Million
Q2 2022

Aug 11, 2022
SELL
$29.79 - $42.29 $24,070 - $34,170
-808 Reduced 1.01%
79,187 $2.76 Million
Q1 2022

May 12, 2022
BUY
$22.96 - $36.45 $46,356 - $73,592
2,019 Added 2.59%
79,995 $2.87 Million
Q4 2021

Feb 10, 2022
SELL
$18.14 - $23.29 $8,163 - $10,480
-450 Reduced 0.57%
77,976 $1.82 Million
Q3 2021

Nov 12, 2021
SELL
$17.83 - $21.49 $230,006 - $277,221
-12,900 Reduced 14.13%
78,426 $1.49 Million
Q2 2021

Aug 05, 2021
BUY
$17.11 - $20.92 $120,967 - $147,904
7,070 Added 8.39%
91,326 $1.84 Million
Q1 2021

May 06, 2021
BUY
$17.21 - $20.65 $28,826 - $34,588
1,675 Added 2.03%
84,256 $1.54 Million
Q4 2020

Feb 10, 2021
SELL
$17.76 - $21.24 $17 - $21
-1 Reduced -0.0%
82,581 $1.66 Million
Q3 2020

Nov 12, 2020
SELL
$17.99 - $22.22 $90,849 - $112,211
-5,050 Reduced 5.76%
82,582 $1.55 Million
Q2 2020

Aug 13, 2020
SELL
$14.25 - $22.46 $81,609 - $128,628
-5,727 Reduced 6.13%
87,632 $1.97 Million
Q1 2020

May 06, 2020
SELL
$12.66 - $20.08 $267,771 - $424,712
-21,151 Reduced 18.47%
93,359 $1.39 Million
Q4 2019

Feb 05, 2020
BUY
$17.07 - $20.64 $95,233 - $115,150
5,579 Added 5.12%
114,510 $2.21 Million
Q3 2019

Oct 23, 2019
BUY
$19.12 - $22.62 $25,964 - $30,717
1,358 Added 1.26%
108,931 $2.16 Million
Q2 2019

Aug 14, 2019
BUY
$18.92 - $22.96 $27,490 - $33,360
1,453 Added 1.37%
107,573 $2.27 Million
Q1 2019

May 01, 2019
BUY
$19.46 - $25.28 $42,364 - $55,034
2,177 Added 2.09%
106,120 $2.17 Million
Q4 2018

Jan 31, 2019
BUY
$17.72 - $22.51 $284,937 - $361,960
16,080 Added 18.3%
103,943 $2.07 Million
Q3 2018

Nov 07, 2018
SELL
$15.39 - $19.38 $22,777 - $28,682
-1,480 Reduced 1.66%
87,863 $1.69 Million
Q2 2018

Aug 06, 2018
BUY
$14.63 - $19.6 $90,574 - $121,343
6,191 Added 7.45%
89,343 $1.36 Million
Q1 2018

May 02, 2018
BUY
$17.23 - $20.35 $42,454 - $50,142
2,464 Added 3.05%
83,152 $1.56 Million
Q4 2017

Feb 09, 2018
BUY
$17.76 - $19.75 $167,920 - $186,736
9,455 Added 13.27%
80,688 $1.55 Million
Q3 2017

Nov 06, 2017
BUY
$14.73 - $17.99 $1.05 Million - $1.28 Million
71,233
71,233 $1.27 Million

Others Institutions Holding AMPH

# of Institutions
257
Shares Held
33.3M
Call Options Held
18.3K
Put Options Held
12.6K
View Full List

About Amphastar Pharmaceuticals, Inc.

AMPH Quotes by TradingView
  • Ticker AMPH
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Drug Manufacturers—Specialty & Generic
  • Shares Outstandng 49,015,200
  • Market Cap $1.27B
  • 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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