What does CUSIP 03209R103 represent in this 13F holders report?

CUSIP 03209R103 is the security identifier for AMPH - Amphastar Pharmaceuticals, Inc. - Common Stock used to aggregate holder disclosures.

How many institutions held AMPH - Amphastar Pharmaceuticals, Inc. - Common Stock in Q3 2015?

91 institutional investors reported AMPH - Amphastar Pharmaceuticals, Inc. - Common Stock for Q3 2015. Use the holders table for investor-level position and value details.

Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH)

CUSIP: 03209R103

Q3 2015 13F Holders as of 30 Sep 2015

Type / Class: Equity / Common Stock
Shares outstanding: 46,377,939
Total 13F shares: 13,587,192
Share change: +264,997
Total reported value: $158,819,188
Price per share: $11.69
Number of holders: 91
Value change: -$3,114,129
Number of buys: 55
Number of sells: 35

Quarterly Holders Quick Answers

What is CUSIP 03209R103?
CUSIP 03209R103 identifies AMPH - Amphastar Pharmaceuticals, Inc. - Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q4 2015
Previous quarter: Q2 2015

Recent filing periods for CUSIP 03209R103:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of AMPH - Amphastar Pharmaceuticals, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
FMR LLC	13F	Company	4%	1,863,161	$32,754,000	—	30 Jun 2015	13F
FEDERATED HERMES, INC.	13F	Company	3.2%	1,480,178	$26,022,000	—	30 Jun 2015	13F
Broadfin Capital, LLC	13F	Company	3.1%	1,417,956	$24,928,000	—	30 Jun 2015	13F
BlackRock Fund Advisors	13F	Company	3%	1,400,491	$24,621,000	—	30 Jun 2015	13F
VANGUARD GROUP INC	13F	Company	2.2%	1,016,483	$17,870,000	—	30 Jun 2015	13F
JPMORGAN CHASE & CO	13F	Company	0.98%	456,367	$8,022,000	—	30 Jun 2015	13F
DEERFIELD MANAGEMENT COMPANY, L.P.	13F	Company	0.97%	448,532	$7,885,000	—	30 Jun 2015	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.95%	442,855	$7,786,000	—	30 Jun 2015	13F
STATE STREET CORP	13F	Company	0.79%	364,671	$6,411,000	—	30 Jun 2015	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.68%	317,006	$5,573,000	—	30 Jun 2015	13F
TFS CAPITAL LLC	13F	Company	0.68%	315,495	$5,546,000	—	30 Jun 2015	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	0.58%	267,505	$4,703,000	—	30 Jun 2015	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.47%	217,641	$3,826,000	—	30 Jun 2015	13F
KINGDON CAPITAL MANAGEMENT, L.L.C.	13F	Company	0.45%	206,539	$3,631,000	—	30 Jun 2015	13F
DEUTSCHE BANK AG\	13F	Company	0.39%	179,848	$3,161,000	—	30 Jun 2015	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.38%	174,701	$3,071,000	—	30 Jun 2015	13F
Alyeska Investment Group, L.P.	13F	Company	0.37%	173,062	$3,042,000	—	30 Jun 2015	13F
TURNER INVESTMENTS LLC	13F	Company	0.33%	155,280	$2,730,000	—	30 Jun 2015	13F
Endurant Capital Management LP	13F	Company	0.29%	133,559	$2,348,000	—	30 Jun 2015	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.26%	122,772	$2,158,000	—	30 Jun 2015	13F
Bank of New York Mellon Corp	13F	Company	0.26%	122,506	$2,154,000	—	30 Jun 2015	13F
NORTHERN TRUST CORP	13F	Company	0.26%	121,749	$2,141,000	—	30 Jun 2015	13F
Spark Investment Management LLC	13F	Company	0.26%	119,200	$2,094,000	—	30 Jun 2015	13F
BlackRock Investment Management, LLC	13F	Company	0.25%	118,046	$2,075,000	—	30 Jun 2015	13F
GUGGENHEIM CAPITAL LLC	13F	Company	0.25%	114,540	$2,014,000	—	30 Jun 2015	13F
RUSSELL FRANK CO/	13F	Company	0.22%	102,854	$1,808,000	—	30 Jun 2015	13F
CITIGROUP INC	13F	Company	0.2%	93,073	$1,637,000	—	30 Jun 2015	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.2%	91,885	$1,615,000	—	30 Jun 2015	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.16%	74,656	$1,312,000	—	30 Jun 2015	13F
CITADEL ADVISORS LLC	13F	Company	0.16%	73,670	$1,295,000	—	30 Jun 2015	13F
CREDIT SUISSE AG/	13F	Company	0.15%	71,620	$1,259,000	—	30 Jun 2015	13F
Informed Momentum Co LLC	13F	Company	0.15%	68,224	$1,199,000	—	30 Jun 2015	13F
Numeric Investors LLC	13F	Company	0.13%	60,100	$1,057,000	—	30 Jun 2015	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.13%	58,022	$1,020,000	—	30 Jun 2015	13F
Gupta Wealth Management LLC	13F	Company	0.11%	50,000	$879,000	—	30 Jun 2015	13F
Trexquant Investment LP	13F	Company	0.1%	46,614	$819,000	—	30 Jun 2015	13F
TEACHERS ADVISORS, LLC	13F	Company	0.1%	45,826	$806,000	—	30 Jun 2015	13F
STRS OHIO	13F	Company	0.1%	45,500	$799,000	—	30 Jun 2015	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.09%	42,926	$755,000	—	30 Jun 2015	13F
ProShare Advisors LLC	13F	Company	0.09%	39,745	$699,000	—	30 Jun 2015	13F
Nationwide Fund Advisors	13F	Company	0.08%	38,661	$680,000	—	30 Jun 2015	13F
Swiss National Bank	13F	Company	0.08%	38,400	$675,000	—	30 Jun 2015	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	0.08%	37,087	$652,000	—	30 Jun 2015	13F
SECTORAL ASSET MANAGEMENT INC	13F	Company	0.08%	36,400	$640,000	—	30 Jun 2015	13F
PICTET ASSET MANAGEMENT LTD	13F	Company	0.08%	36,400	$592,000	—	30 Jun 2015	13F
D. E. Shaw & Co., Inc.	13F	Company	0.07%	31,432	$553,000	—	30 Jun 2015	13F
RHUMBLINE ADVISERS	13F	Company	0.07%	30,680	$539,000	—	30 Jun 2015	13F
MARTINGALE ASSET MANAGEMENT L P	13F	Company	0.06%	28,309	$498,000	—	30 Jun 2015	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.05%	25,000	$440,000	—	30 Jun 2015	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.05%	24,934	$438,000	—	30 Jun 2015	13F

Institutional Holders of Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) as of Q3 2015

As of 30 Sep 2015, Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) was held by 91 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 13,587,192 shares. The largest 10 holders included FMR LLC, FEDERATED INVESTORS INC /PA/, BlackRock Fund Advisors, Broadfin Capital, LLC, VANGUARD GROUP INC, UBS GLOBAL ASSET MANAGEMENT AMERICAS INC, STATE STREET CORP, BlackRock Institutional Trust Company, N.A., JPMORGAN CHASE & CO, and TFS CAPITAL LLC. This page lists 91 institutional shareholders reporting positions in this security for the Q3 2015 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q3 2015 vs Q2 2015 Across Filers

Q2 2015 holders

Q3 2015 holders

Holder diff

Investor	Q2 2015 Shares	Q3 2015 Shares	Share Diff	Share Chg %	Q2 2015 Value $	Q3 2015 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.