0001104659-24-036270.txt : 20240319
0001104659-24-036270.hdr.sgml : 20240319
20240319185531
ACCESSION NUMBER: 0001104659-24-036270
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20240315
FILED AS OF DATE: 20240319
DATE AS OF CHANGE: 20240319
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Luo Mary Z.
CENTRAL INDEX KEY: 0001611156
ORGANIZATION NAME:
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-36509
FILM NUMBER: 24765658
MAIL ADDRESS:
STREET 1: 11570 6TH STREET
CITY: RANCHO CUCAMONGA
STATE: CA
ZIP: 91730
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Zhang Jack Y.
CENTRAL INDEX KEY: 0001611157
ORGANIZATION NAME:
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-36509
FILM NUMBER: 24765659
MAIL ADDRESS:
STREET 1: 11570 6TH STREET
CITY: RANCHO CUCAMONGA
STATE: CA
ZIP: 91730
ISSUER:
COMPANY DATA:
COMPANY CONFORMED NAME: Amphastar Pharmaceuticals, Inc.
CENTRAL INDEX KEY: 0001297184
STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834]
ORGANIZATION NAME: 03 Life Sciences
IRS NUMBER: 330702205
FISCAL YEAR END: 1231
BUSINESS ADDRESS:
STREET 1: 11570 SIXTH STREET
CITY: RANCHO CUCAMONGA
STATE: CA
ZIP: 91730
BUSINESS PHONE: 909-980-9484
MAIL ADDRESS:
STREET 1: 11570 SIXTH STREET
CITY: RANCHO CUCAMONGA
STATE: CA
ZIP: 91730
4
1
tm249272-1_4seq1.xml
OWNERSHIP DOCUMENT
X0508
4
2024-03-15
0
0001297184
Amphastar Pharmaceuticals, Inc.
AMPH
0001611157
Zhang Jack Y.
C/O AMPHASTAR PHARMACEUTICALS, INC.
11570 6TH STREET
RANCHO CUCAMONGA,
CA
91730
1
1
1
0
CEO & Chief Scientific Officer
0001611156
Luo Mary Z.
C/O AMPHASTAR PHARMACEUTICALS, INC.
11570 6TH STREET
RANCHO CUCAMONGA
CA
91730
1
1
1
0
COO,Chief Scientist & Chairman
0
Common Stock
2024-03-15
4
M
0
722046
12.46
A
2858043
D
Common Stock
2024-03-15
4
F
0
408721
43.05
D
2449322
D
Common Stock
2024-03-17
4
F
0
15768
43.05
D
2433554
D
Common Stock
2024-03-15
4
M
0
310930
12.46
A
1439466
I
See footnote
Common Stock
2024-03-15
4
F
0
202658
43.05
D
1236808
I
See footnote
Common Stock
2024-03-17
4
F
0
7052
43.05
D
1229756
I
See footnote
Common Stock
6827679
I
See footnote
Employee Stock Option (right to buy)
12.46
2024-03-15
4
M
0
722046
0
D
2024-03-17
Common Stock
722046
0
D
Employee Stock Option (right to buy)
12.46
2024-03-15
4
M
0
310930
0
D
2024-03-17
Common Stock
310930
0
I
See footnote
Consists of 399,187 shares withheld to pay the exercise price and withholding taxes incurred in connection with the exercise of 622,046 options and 9,534 shares withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.
The reported shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of RSUs.
The securities are held of record by Mary Z. Luo. The reporting persons are husband and wife.
Consists of 198,640 shares withheld to pay the exercise price and withholding taxes incurred in connection with the option exercise and 4,018 shares withheld to satisfy the reporting person's tax liability in connection with the vesting of RSUs.
The shares are held of record by Applied Physics & Chemistry Laboratories, Inc., of which the reporting persons and The Bill Luobei Zhang 2004 Irrevocable Trust are the sole owners.
Shares subject to the option are fully vested and immediately exercisable.
/s/ Eva Wen, by power of attorney for Jack Y. Zhang
2024-03-19
/s/ Eva Wen, by power of attorney for Mary Z. Luo
2024-03-19