AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

RENAISSANCE TECHNOLOGIES LLC's Holding History (CIK: 0001037389)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 544,700 Value ($000) $14,587 Avg Close $25.76 Range $22.94 - $29.00

Q3 2025

Shares 586,900 Value ($000) $15,641 Avg Close $25.82 Range $20.39 - $31.26

Q2 2025

Shares 576,500 Value ($000) $13,236 Avg Close $24.82 Range $22.64 - $29.27

Q1 2025

Shares 495,000 Value ($000) $14,350 Avg Close $31.94 Range $25.89 - $39.01

Q4 2024

Shares 525,500 Value ($000) $19,512 Avg Close $45.73 Range $36.48 - $53.96

Q3 2024

Shares 489,400 Value ($000) $23,751 Avg Close $43.89 Range $36.56 - $50.62

Q2 2024

Shares 537,700 Value ($000) $21,508 Avg Close $41.44 Range $38.43 - $46.62

Q1 2024

Shares 599,100 Value ($000) $26 Avg Close $51.65 Range $42.16 - $65.92

Q4 2023

Shares 641,900 Value ($000) $40 Avg Close $52.53 Range $43.79 - $63.67

Q3 2023

Shares 603,100 Value ($000) $28 Avg Close $54.55 Range $44.86 - $67.66

Q2 2023

Shares 492,583 Value ($000) $28 Avg Close $44.33 Range $35.62 - $58.70

Q1 2023

Shares 496,800 Value ($000) $19 Avg Close $32.78 Range $27.58 - $38.22

Q4 2022

Shares 447,400 Value ($000) $13 Avg Close $29.04 Range $26.76 - $31.64

Q3 2022

Shares 433,800 Value ($000) $12,190 Avg Close $32.65 Range $27.10 - $39.07

Q2 2022

Shares 406,900 Value ($000) $14,156 Avg Close $35.69 Range $28.64 - $44.46

Q1 2022

Shares 308,700 Value ($000) $11,082 Avg Close $28.36 Range $22.07 - $37.16

Q4 2021

Shares 289,800 Value ($000) $6,749 Avg Close $20.45 Range $18.12 - $23.85

Q3 2021

Shares 275,700 Value ($000) $5,241 Avg Close $19.59 Range $17.56 - $21.63

Q2 2021

Shares 247,100 Value ($000) $4,982 Avg Close $18.84 Range $16.91 - $20.94

Q1 2021

Shares 225,600 Value ($000) $4,133 Avg Close $18.59 Range $17.11 - $20.93

Q4 2020

Shares 312,600 Value ($000) $6,286 Avg Close $19.46 Range $17.51 - $21.38

Q3 2020

Shares 378,300 Value ($000) $7,093 Avg Close $20.14 Range $17.83 - $22.69

Q2 2020

Shares 511,300 Value ($000) $11,484 Avg Close $18.31 Range $14.00 - $22.50

Q1 2020

Shares 738,600 Value ($000) $10,961 Avg Close $17.40 Range $12.33 - $20.40

Q4 2019

Shares 833,000 Value ($000) $16,069 Avg Close $19.18 Range $16.71 - $20.89

Q3 2019

Shares 730,700 Value ($000) $14,490 Avg Close $20.83 Range $18.66 - $22.85

Q2 2019

Shares 588,000 Value ($000) $12,413 Avg Close $20.90 Range $18.60 - $23.06

Q1 2019

Shares 441,600 Value ($000) $9,022 Avg Close $22.40 Range $19.32 - $25.43

Q4 2018

Shares 310,100 Value ($000) $6,171 Avg Close $19.71 Range $17.71 - $22.74

Q3 2018

Shares 186,100 Value ($000) $3,581 Avg Close $17.82 Range $15.04 - $19.50

Q2 2018

Shares 91,100 Value ($000) $1,390 Avg Close $17.48 Range $14.40 - $19.94

Q1 2018

Shares 51,600 Value ($000) $968 Avg Close $18.80 Range $16.76 - $20.45

Q4 2017

Shares 11,800 Value ($000) $227 Avg Close $18.67 Range $17.00 - $19.95

Q3 2016

Shares 21,900 Value ($000) $415 Avg Close $18.15 Range $15.62 - $21.53

Q3 2015

Shares 131,000 Value ($000) $1,531 Avg Close $15.00 Range $10.61 - $18.30

Q2 2015

Shares 317,006 Value ($000) $5,573 Avg Close $15.59 Range $13.55 - $18.25

Q1 2015

Shares 123,380 Value ($000) $1,846 Avg Close $13.37 Range $11.12 - $15.79

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	544,700	$14,587	$25.76	$22.94 - $29.00
Q3 2025	586,900	$15,641	$25.82	$20.39 - $31.26
Q2 2025	576,500	$13,236	$24.82	$22.64 - $29.27
Q1 2025	495,000	$14,350	$31.94	$25.89 - $39.01
Q4 2024	525,500	$19,512	$45.73	$36.48 - $53.96
Q3 2024	489,400	$23,751	$43.89	$36.56 - $50.62
Q2 2024	537,700	$21,508	$41.44	$38.43 - $46.62
Q1 2024	599,100	$26	$51.65	$42.16 - $65.92
Q4 2023	641,900	$40	$52.53	$43.79 - $63.67
Q3 2023	603,100	$28	$54.55	$44.86 - $67.66
Q2 2023	492,583	$28	$44.33	$35.62 - $58.70
Q1 2023	496,800	$19	$32.78	$27.58 - $38.22
Q4 2022	447,400	$13	$29.04	$26.76 - $31.64
Q3 2022	433,800	$12,190	$32.65	$27.10 - $39.07
Q2 2022	406,900	$14,156	$35.69	$28.64 - $44.46
Q1 2022	308,700	$11,082	$28.36	$22.07 - $37.16
Q4 2021	289,800	$6,749	$20.45	$18.12 - $23.85
Q3 2021	275,700	$5,241	$19.59	$17.56 - $21.63
Q2 2021	247,100	$4,982	$18.84	$16.91 - $20.94
Q1 2021	225,600	$4,133	$18.59	$17.11 - $20.93
Q4 2020	312,600	$6,286	$19.46	$17.51 - $21.38
Q3 2020	378,300	$7,093	$20.14	$17.83 - $22.69
Q2 2020	511,300	$11,484	$18.31	$14.00 - $22.50
Q1 2020	738,600	$10,961	$17.40	$12.33 - $20.40
Q4 2019	833,000	$16,069	$19.18	$16.71 - $20.89
Q3 2019	730,700	$14,490	$20.83	$18.66 - $22.85
Q2 2019	588,000	$12,413	$20.90	$18.60 - $23.06
Q1 2019	441,600	$9,022	$22.40	$19.32 - $25.43
Q4 2018	310,100	$6,171	$19.71	$17.71 - $22.74
Q3 2018	186,100	$3,581	$17.82	$15.04 - $19.50
Q2 2018	91,100	$1,390	$17.48	$14.40 - $19.94
Q1 2018	51,600	$968	$18.80	$16.76 - $20.45
Q4 2017	11,800	$227	$18.67	$17.00 - $19.95
Q3 2016	21,900	$415	$18.15	$15.62 - $21.53
Q3 2015	131,000	$1,531	$15.00	$10.61 - $18.30
Q2 2015	317,006	$5,573	$15.59	$13.55 - $18.25
Q1 2015	123,380	$1,846	$13.37	$11.12 - $15.79