Amphastar Pharmaceuticals, Inc. reports

Company location: Rancho Cucamonga, CA
Fiscal year end: 31 December

Amphastar Pharmaceuticals, Inc. has filed 950 SEC EDGAR filings since 11 Feb 2005

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SC13G

SEC filing history

Showing 376-400 of 941 matching filings.

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25

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16

SC 13G/A File 005-88204

SC 13G/A

Filing date: 11 Feb 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 09 Feb 2022
Reporting date: 08 Feb 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 09 Feb 2022
Reporting date: 08 Feb 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-88204

SCHEDULE 13G/A

Filing date: 09 Feb 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 02 Feb 2022
Reporting date: 01 Feb 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-88204

SC 13G/A filing

Filing date: 28 Jan 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 11 Jan 2022
Reporting date: 10 Jan 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 11 Jan 2022
Reporting date: 07 Jan 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 04 Jan 2022
Reporting date: 03 Jan 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 04 Jan 2022
Reporting date: 30 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 23 Dec 2021
Reporting date: 22 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 22 Dec 2021
Reporting date: 21 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 17 Dec 2021
Reporting date: 16 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 13 Dec 2021
Reporting date: 10 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 23 Nov 2021
Reporting date: 22 Nov 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

EFFECT File 333-260916

EFFECT filing

Filing date: 19 Nov 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

CORRESP

CORRESP filing

Filing date: 17 Nov 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

UPLOAD

UPLOAD filing

Filing date: 15 Nov 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 12 Nov 2021
Reporting date: 11 Nov 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 12 Nov 2021
Reporting date: 11 Nov 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

S-3 File 333-260916

S-3

Filing date: 09 Nov 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-36509

10-Q

Filing date: 09 Nov 2021
Reporting date: 30 Sep 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-36509

8-K

Filing date: 08 Nov 2021
Reporting date: 08 Nov 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-36509

8-K

Filing date: 23 Aug 2021
Reporting date: 19 Aug 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-36509

8-K

Filing date: 20 Aug 2021
Reporting date: 19 Aug 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

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