AMPHASTAR PHARMACEUTICALS IN

Ticker: AMPH CUSIP: 03209R103 Class: Common Stock

BNP PARIBAS ARBITRAGE, SA's Holding History (CIK: 0001166588)

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

Q4 2025

Shares 120,893 Value ($000) $3,238 Avg Close $25.76 Range $22.94 - $29.00

Q3 2025

Shares 222,019 Value ($000) $5,917 Avg Close $25.82 Range $20.39 - $31.26

Q2 2025

Shares 71,689 Value ($000) $1,646 Avg Close $24.82 Range $22.64 - $29.27

Q1 2025

Shares 7,945 Value ($000) $230 Avg Close $31.94 Range $25.89 - $39.01

Q4 2021

Shares 154,185 Value ($000) $3,590,969 Avg Close $20.45 Range $18.12 - $23.85

Q3 2021

Shares 47,861 Value ($000) $909,838 Avg Close $19.59 Range $17.56 - $21.63

Q2 2021

Shares 22,649 Value ($000) $456,604 Avg Close $18.84 Range $16.91 - $20.94

Q1 2021

Shares 15,009 Value ($000) $274,965 Avg Close $18.59 Range $17.11 - $20.93

Q4 2020

Shares 14,942 Value ($000) $300,484 Avg Close $19.46 Range $17.51 - $21.38

Q3 2020

Shares 15,875 Value ($000) $297,656 Avg Close $20.14 Range $17.83 - $22.69

Q2 2020

Shares 2,122 Value ($000) $47,660 Avg Close $18.31 Range $14.00 - $22.50

Q1 2020

Shares 14,222 Value ($000) $211,054 Avg Close $17.40 Range $12.33 - $20.40

Q4 2019

Shares 14,470 Value ($000) $279,126 Avg Close $19.18 Range $16.71 - $20.89

Q3 2019

Shares 12,666 Value ($000) $251,167 Avg Close $20.83 Range $18.66 - $22.85

Q2 2019

Shares 3,964 Value ($000) $83,680 Avg Close $20.90 Range $18.60 - $23.06

Q1 2019

Shares 7,351 Value ($000) $150,181 Avg Close $22.40 Range $19.32 - $25.43

Q4 2018

Shares 14 Value ($000) $279 Avg Close $19.71 Range $17.71 - $22.74

Q3 2018

Shares 1,208 Value ($000) $23,242 Avg Close $17.82 Range $15.04 - $19.50

Q2 2018

Shares 1,208 Value ($000) $18,434 Avg Close $17.48 Range $14.40 - $19.94

Q1 2018

Shares 11,763 Value ($000) $220,556 Avg Close $18.80 Range $16.76 - $20.45

Q4 2017

Shares 14,685 Value ($000) $282,539 Avg Close $18.67 Range $17.00 - $19.95

Q3 2017

Shares 17,946 Value ($000) $320,695 Avg Close $16.45 Range $14.53 - $18.67

Q2 2017

Shares 10,545 Value ($000) $188,334 Avg Close $15.86 Range $13.15 - $17.95

Q1 2017

Shares 6,665 Value ($000) $96,643 Avg Close $15.72 Range $12.05 - $19.64

Q4 2016

Shares 7,412 Value ($000) $136,529 Avg Close $19.45 Range $16.87 - $21.75

Q3 2016

Shares 4,956 Value ($000) $94,015 Avg Close $18.15 Range $15.62 - $21.53

Q2 2016

Shares 1,379 Value ($000) $22,229 Avg Close $14.11 Range $11.41 - $16.78

Q4 2015

Shares 3,049 Value ($000) $43,387 Avg Close $13.21 Range $10.57 - $15.84

Q3 2015

Shares 6,774 Value ($000) $79,188 Avg Close $15.00 Range $10.61 - $18.30

Q2 2015

Shares 2,643 Value ($000) $46,464 Avg Close $15.59 Range $13.55 - $18.25

Q1 2015

Shares 224 Value ($000) $3,351 Avg Close $13.37 Range $11.12 - $15.79

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	120,893	$3,238	$25.76	$22.94 - $29.00
Q3 2025	222,019	$5,917	$25.82	$20.39 - $31.26
Q2 2025	71,689	$1,646	$24.82	$22.64 - $29.27
Q1 2025	7,945	$230	$31.94	$25.89 - $39.01
Q4 2021	154,185	$3,590,969	$20.45	$18.12 - $23.85
Q3 2021	47,861	$909,838	$19.59	$17.56 - $21.63
Q2 2021	22,649	$456,604	$18.84	$16.91 - $20.94
Q1 2021	15,009	$274,965	$18.59	$17.11 - $20.93
Q4 2020	14,942	$300,484	$19.46	$17.51 - $21.38
Q3 2020	15,875	$297,656	$20.14	$17.83 - $22.69
Q2 2020	2,122	$47,660	$18.31	$14.00 - $22.50
Q1 2020	14,222	$211,054	$17.40	$12.33 - $20.40
Q4 2019	14,470	$279,126	$19.18	$16.71 - $20.89
Q3 2019	12,666	$251,167	$20.83	$18.66 - $22.85
Q2 2019	3,964	$83,680	$20.90	$18.60 - $23.06
Q1 2019	7,351	$150,181	$22.40	$19.32 - $25.43
Q4 2018	14	$279	$19.71	$17.71 - $22.74
Q3 2018	1,208	$23,242	$17.82	$15.04 - $19.50
Q2 2018	1,208	$18,434	$17.48	$14.40 - $19.94
Q1 2018	11,763	$220,556	$18.80	$16.76 - $20.45
Q4 2017	14,685	$282,539	$18.67	$17.00 - $19.95
Q3 2017	17,946	$320,695	$16.45	$14.53 - $18.67
Q2 2017	10,545	$188,334	$15.86	$13.15 - $17.95
Q1 2017	6,665	$96,643	$15.72	$12.05 - $19.64
Q4 2016	7,412	$136,529	$19.45	$16.87 - $21.75
Q3 2016	4,956	$94,015	$18.15	$15.62 - $21.53
Q2 2016	1,379	$22,229	$14.11	$11.41 - $16.78
Q4 2015	3,049	$43,387	$13.21	$10.57 - $15.84
Q3 2015	6,774	$79,188	$15.00	$10.61 - $18.30
Q2 2015	2,643	$46,464	$15.59	$13.55 - $18.25
Q1 2015	224	$3,351	$13.37	$11.12 - $15.79