Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH)
CUSIP: 03209R103
Q4 2024 13F Holders as of 31 Dec 2024
- Type / Class
- Equity / Common Stock
- Shares outstanding
- 46,377,939
- Total 13F shares
- 35,163,514
- Share change
- -127,660
- Total reported value
- $1,305,816,189
- Put/Call ratio
- 30%
- Price per share
- $37.13
- Number of holders
- 261
- Value change
- -$16,188,647
- Number of buys
- 111
- Number of sells
- 147
Quarterly Holders Quick Answers
What is CUSIP 03209R103?
CUSIP 03209R103 identifies AMPH - Amphastar Pharmaceuticals, Inc. - Common Stock in SEC institutional holdings data.
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Recent filing periods for CUSIP 03209R103:
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 |
|---|---|---|---|---|---|---|---|---|
| Jack Y. Zhang |
13D/G
|
— |
25%
|
12,524,153
|
$301,456,363 | $0 | 31 Dec 2024 | |
| BlackRock, Inc. |
13F
|
Company |
13%
|
6,032,722
|
$292,768,000 | — | 30 Sep 2024 | |
| VANGUARD GROUP INC |
13F
|
Company |
5.8%
|
2,711,473
|
$131,587,785 | — | 30 Sep 2024 | |
| TD ASSET MANAGEMENT INC |
13F
|
Company |
4.6%
|
2,135,038
|
$102,524,525 | — | 30 Sep 2024 | |
| FEDERATED HERMES, INC. |
13F
|
Company |
4.2%
|
1,947,100
|
$94,492,763 | — | 30 Sep 2024 | |
| Neuberger Berman Group LLC |
13F
|
Company |
3.5%
|
1,615,088
|
$78,380,221 | — | 30 Sep 2024 | |
| STATE STREET CORP |
13F
|
Company |
3.3%
|
1,530,464
|
$74,273,418 | — | 30 Sep 2024 | |
| Mary Z. Luo |
3/4/5
|
COO,Chief Scientist & Chairman, Director, 10%+ Owner |
—
class O/S missing
|
1,109,416
|
$63,239,930 | — | 10 Jan 2024 | |
| FULLER & THALER ASSET MANAGEMENT, INC. |
13F
|
Company |
2.7%
|
1,260,767
|
$61,185,045 | — | 30 Sep 2024 | |
| Epoch Investment Partners, Inc. |
13F
|
Company |
2.6%
|
1,191,110
|
$57,804,568 | — | 30 Sep 2024 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
2.4%
|
1,093,302
|
$53,057,036 | — | 30 Sep 2024 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2%
|
920,363
|
$44,673,682 | — | 30 Sep 2024 | |
| MORGAN STANLEY |
13F
|
Company |
1.5%
|
677,626
|
$32,885,189 | — | 30 Sep 2024 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
1.4%
|
639,592
|
$31,039,400 | — | 30 Sep 2024 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1.3%
|
583,362
|
$28,310,558 | — | 30 Sep 2024 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
1.2%
|
568,894
|
$27,609,000 | — | 30 Sep 2024 | |
| MARSHALL WACE, LLP |
13F
|
Company |
1.2%
|
568,494
|
$27,589,013 | — | 30 Sep 2024 | |
| Boston Trust Walden Corp |
13F
|
Company |
1.2%
|
539,639
|
$26,188,681 | — | 30 Sep 2024 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
1.1%
|
489,400
|
$23,750,582 | — | 30 Sep 2024 | |
| BESSEMER GROUP INC |
13F
|
Company |
1%
|
477,021
|
$23,150,000 | — | 30 Sep 2024 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.97%
|
449,389
|
$21,808,848 | — | 30 Sep 2024 | |
| Mesirow Institutional Investment Management, Inc. |
13F
|
Company |
0.89%
|
413,949
|
$20,088,945 | — | 30 Sep 2024 | |
| Granite Investment Partners, LLC |
13F
|
Company |
0.87%
|
405,718
|
$19,689,495 | — | 30 Sep 2024 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.75%
|
350,056
|
$16,988,218 | — | 30 Sep 2024 | |
| Invesco Ltd. |
13F
|
Company |
0.72%
|
332,925
|
$16,156,851 | — | 30 Sep 2024 | |
| Portolan Capital Management, LLC |
13F
|
Company |
0.71%
|
327,764
|
$15,906,387 | — | 30 Sep 2024 | |
| BOONE CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.68%
|
316,556
|
$15,362,463 | — | 30 Sep 2024 | |
| Richard Koo |
3/4/5
|
Director |
—
mixed-class rows
|
286,471
mixed-class rows
|
$15,350,254 | — | 07 Jun 2021 | |
| NORDEA INVESTMENT MANAGEMENT AB |
13F
|
Company |
0.58%
|
266,863
|
$12,996,228 | — | 30 Sep 2024 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.56%
|
259,650
|
$12,600,814 | — | 30 Sep 2024 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.55%
|
253,751
|
$12,314,537 | — | 30 Sep 2024 | |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.48%
|
222,620
|
$10,803,749 | — | 30 Sep 2024 | |
| VICTORY CAPITAL MANAGEMENT INC |
13F
|
Company |
0.47%
|
218,531
|
$10,605,309 | — | 30 Sep 2024 | |
| Nuveen Asset Management, LLC |
13F
|
Company |
0.45%
|
207,972
|
$10,092,881 | — | 30 Sep 2024 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.44%
|
202,017
|
$9,803,884 | — | 30 Sep 2024 | |
| SILVERCREST ASSET MANAGEMENT GROUP LLC |
13F
|
Company |
0.36%
|
168,472
|
$8,175,946 | — | 30 Sep 2024 | |
| Assenagon Asset Management S.A. |
13F
|
Company |
0.36%
|
167,355
|
$8,121,738 | — | 30 Sep 2024 | |
| OBERWEIS ASSET MANAGEMENT INC/ |
13F
|
Company |
0.35%
|
161,155
|
$7,820,852 | — | 30 Sep 2024 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.34%
|
158,131
|
$7,674,096 | — | 30 Sep 2024 | |
| Clark Capital Management Group, Inc. |
13F
|
Company |
0.33%
|
153,747
|
$7,461,342 | — | 30 Sep 2024 | |
| JANUS HENDERSON GROUP PLC |
13F
|
Company |
0.32%
|
147,045
|
$7,135,757 | — | 30 Sep 2024 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.31%
|
144,598
|
$7,017,342 | — | 30 Sep 2024 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.29%
|
135,237
|
$6,563,052 | — | 30 Sep 2024 | |
| LAM GROUP, INC. |
13F
|
Company |
0.28%
|
130,800
|
$6,347,724 | — | 30 Sep 2024 | |
| FRONTIER CAPITAL MANAGEMENT CO LLC |
13F
|
Company |
0.27%
|
123,619
|
$5,999,242 | — | 30 Sep 2024 | |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
0.27%
|
123,445
|
$5,990,786 | — | 30 Sep 2024 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.25%
|
116,678
|
$5,662,383 | — | 30 Sep 2024 | |
| RAYMOND JAMES & ASSOCIATES |
13F
|
Company |
0.25%
|
116,677
|
$5,662,335 | — | 30 Sep 2024 | |
| Legal & General Group Plc |
13F
|
Company |
0.22%
|
104,323
|
$5,062,793 | — | 30 Sep 2024 | |
| Weiss Asset Management LP |
13F
|
Company |
0.22%
|
102,358
|
$4,967,434 | — | 30 Sep 2024 |
Institutional Holders of Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) as of Q4 2024
As of 31 Dec 2024,
Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) was held by
261 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
35,163,514 shares.
The largest 10 holders included
BlackRock, Inc., VANGUARD GROUP INC, TD ASSET MANAGEMENT INC, STATE STREET CORP, NEUBERGER BERMAN GROUP LLC, Pacer Advisors, Inc., DIMENSIONAL FUND ADVISORS LP, FULLER & THALER ASSET MANAGEMENT, INC., Epoch Investment Partners, Inc., and Boston Trust Walden Corp.
This page lists
262
institutional shareholders reporting positions in this security
for the Q4 2024 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q4 2024 vs Q3 2024 Across Filers
Q3 2024 holders
276
Q4 2024 holders
261
Holder diff
-15
| Investor | Q3 2024 Shares | Q4 2024 Shares | Share Diff | Share Chg % | Q3 2024 Value $ | Q4 2024 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.
An asterisk sign (*) next to the price indicates that the price is likely invalid.