Stock Institutional Ownership and Shareholders

SecurityAMPH / Amphastar Pharmaceuticals, Inc. (03209R103)
CEO & Chief Science OfficerZhang Jack Y.
Institutional Owners102
Institutional Shares20,292,440
Outstanding Shares48,215,000 (as of 2017-09-30)
Institutional Value$ 10,064,571,000 USD

Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) has 102 institutional investors and shareholders that have filed 13D/G or 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 20,292,440 shares. Largest shareholders include BlackRock Inc., Vanguard Group Inc, Dimensional Fund Advisors Lp, Invesco Ltd., Federated Investors Inc /pa/, State Street Corp, Teachers Advisors Inc, Northern Trust Corp, Ubs Asset Management Americas Inc, and Bank of New York Mellon Corp.



Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) ownership summary shows current positions in the company by institutions and funds, as well as latest changes in position size. Major shareholders can include individual investors, mutual funds, hedge funds, or institutions. The Schedule 13D indicates that the investor holds more than 5% of the company and intends to actively pursue a change in business strategy. Schedule 13G indicates a passive investment of over 5%. Green rows indicate new positions. Red rows indicate closed positions. Click the link icon to see the full transaction history.

File DateFormInvestor Opt Prev Shares Current Shares Change
(Percent)
Prev Value (x$1000) Current Value (x$1000) Change
(Percent)
2017-11-14 13F-HR QS Investors, LLC 81,569 79,683 -2.31 1,457 1,424 -2.26
2017-11-06 13F-HR COMERICA BANK 37,492 37,490 -0.01 665 680 2.26
2017-11-14 13F-HR GOLDMAN SACHS GROUP INC 195,020 203,555 4.38 3,483 3,638 4.45
2017-11-14 13F-HR MORGAN STANLEY 119,464 53,578 -55.15 2,133 957 -55.13
2017-11-01 13F-HR State of Tennessee, Treasury Department 33,795 31,786 -5.94 604 568 -5.96
2017-11-07 13F-HR SG Americas Securities, LLC 6,190 16,385 164.70 111 293 163.96
2017-10-17 13F-HR CAPITAL ONE, NATIONAL ASSOCIATION 12,380 221
2017-11-09 13F-HR NORDEA INVESTMENT MANAGEMENT AB 115,607 129,046 11.62 2,065 2,306 11.67
2017-11-06 13F-HR Bank of New York Mellon Corp 478,646 456,156 -4.70 8,549 8,152 -4.64
2017-08-04 13F-HR MARSHALL WACE ASIA Ltd 14,325 0 -100.00 215 0 -100.00
2017-10-17 13F-HR Cutler Group LP 500 100 -80.00 8 1 -87.50
2017-11-13 13F-HR NORTHERN TRUST CORP 485,706 479,618 -1.25 8,675 8,570 -1.21
2017-11-08 13F-HR D.A. DAVIDSON & CO. 3,000 0 -100.00 53 0 -100.00
2017-11-14 13F-HR Matarin Capital Management, LLC 52,417 52,417 0.00 936,168 936,692 0.06
2017-11-13 13F-HR TEXAS PERMANENT SCHOOL FUND 26,047 25,968 -0.30 465 464 -0.22
2017-11-14 13F-HR Voya Investment Management LLC 61,084 61,084 0.00 1,091 1,092 0.09
2017-10-30 13F-HR NEW YORK STATE TEACHERS RETIREMENT SYSTEM 14,596 14,596 0.00 261 261 0.00
2017-11-06 13F-HR NEW YORK STATE COMMON RETIREMENT FUND 42,720 42,720 0.00 763 763 0.00
2017-10-20 13F-HR MEEDER ASSET MANAGEMENT INC 386 258 -33.16 7 5 -28.57
2017-11-13 13F-HR RAYMOND JAMES & ASSOCIATES 26,218 469
2017-08-14 13F-HR CLINTON GROUP INC 33,305 0 -100.00 482,923 0 -100.00
2017-11-07 13F-HR AMERIPRISE FINANCIAL INC 186,650 184,260 -1.28 3,333 3,293 -1.20
2017-11-20 13F-HR GSA CAPITAL PARTNERS LLP 0 22,400 0 400
2017-08-14 13F-HR Walleye Trading LLC 13,400 0 -100.00 194 0 -100.00
2017-11-03 13F-HR ALPS ADVISORS INC 39,250 0 -100.00 701 0 -100.00
2017-11-14 13F-HR VANGUARD GROUP INC 2,414,797 2,392,195 -0.94 43,128 42,748 -0.88
2017-10-27 13F-HR VICTORY CAPITAL MANAGEMENT INC 5,611 0 -100.00 100 0 -100.00
2017-11-15 13F-HR Ameritas Investment Partners, Inc. 3,073 3,073 0.00 55 49 -10.91
2017-11-13 13F-HR SCHWAB CHARLES INVESTMENT MANAGEMENT INC 218,080 187,900 -13.84 3,895 3,358 -13.79
2017-11-09 13F-HR WELLS FARGO & COMPANY/MN 67,969 68,837 1.28 1,213 1,231 1.48
2017-10-23 13F-HR Nationwide Fund Advisors 49,266 48,466 -1.62 880 866 -1.59
2017-08-07 13F-HR Winch Advisory Services, LLC 27 0 -100.00 0 0
2017-10-23 13F-HR STRS OHIO 21,800 0 -100.00 389 0 -100.00
2017-08-14 13F-HR WELLINGTON MANAGEMENT GROUP LLP 19,416 0 -100.00 282 0 -100.00
2017-12-14 13F-HR/A-1 PARAMETRIC PORTFOLIO ASSOCIATES LLC 45,615 48,791 6.96 815 872 6.99
2017-11-13 13F-HR CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 64,333 58,013 -9.82 1,149 1,037 -9.75
2017-11-13 13F-HR Skandinaviska Enskilda Banken AB (publ) 182,400 173,000 -5.15 3,258 3,092 -5.10
2017-10-16 13F-HR Louisiana State Employees Retirement System 14,500 14,400 -0.69 259 257 -0.77
2017-11-09 13F-HR GREAT WEST LIFE ASSURANCE CO /CAN/ 50,874 46,337 -8.92 908 828 -8.81
2017-10-16 13F-HR BANK OF MONTREAL /CAN/ 69,649 69,649 0.00 1,244 1,245 0.08
2017-11-13 13F-HR TIAA CREF INVESTMENT MANAGEMENT LLC 98,150 95,954 -2.24 1,753 1,715 -2.17
2017-11-13 13F-HR BLUESTEIN R H & CO 15,000 15,000 0.00 268 268 0.00
2017-11-06 13F-HR Advisor Group, Inc. 1,864 1,600 -14.16 34 29 -14.71
2017-11-09 13F-HR CADENCE CAPITAL MANAGEMENT LLC 39,168 22,903 -41.53 700 409 -41.57
2017-11-13 13F-HR Allianz Asset Management AG 81,753 81,813 0.07 1,460 1,462 0.14
2017-08-04 13F-HR Marshall Wace North America L.P. 14,325 0 -100.00 215 0 -100.00
2017-11-14 13F-HR METROPOLITAN LIFE INSURANCE CO/NY 26,305 26,305 0.00 470 470 0.00
2017-10-16 13F-HR State of Alaska, Department of Revenue 7,052 7,052 0.00 125 126 0.80
2017-08-14 13F-HR Hutchin Hill Capital, LP 73,100 0 -100.00 1,060 0 -100.00
2017-11-14 13F-HR DEUTSCHE BANK AG\ 70,315 113,419 61.30 1,254 2,024 61.40
2017-11-14 13F-HR BANK OF AMERICA CORP /DE/ 54,472 53,901 -1.05 973 963 -1.03
2017-11-13 13F-HR PineBridge Investments, L.P. 4,700 4,414 -6.09 84 79 -5.95
2017-11-14 13F-HR MILLENNIUM MANAGEMENT LLC 16,701 15,901 -4.79 298 284 -4.70
2017-08-07 13F-HR Karp Capital Management Corp 13,324 0 -100.00 193 0 -100.00
2017-11-14 13F-HR CORNERSTONE CAPITAL MANAGEMENT HOLDINGS LLC. 278,200 283,200 1.80 4,967 5,060 1.87
2017-11-02 13F-HR PRINCIPAL FINANCIAL GROUP INC 283,429 280,328 -1.09 5,062 5,009 -1.05
2017-11-14 13F-HR ROYAL BANK OF CANADA 913 3,217 252.35 16 57 256.25
2017-11-15 13F-HR LADENBURG THALMANN FINANCIAL SERVICES INC 200 200 0.00 4 4 0.00
2017-10-30 13F-HR IFP Advisors, Inc 1,560 28
2017-10-19 13F-HR LS Investment Advisors, LLC 1,485 1,485 0.00 27 27 0.00
2017-11-13 13F-HR DIMENSIONAL FUND ADVISORS LP 1,331,842 1,558,113 16.99 23,786 27,844 17.06
2017-11-14 13F-HR Paloma Partners Management Co 24,680 0 -100.00 441 0 -100.00
2017-10-19 13F-HR Winslow, Evans & Crocker, Inc. 1,758 1,758 0.00 31,398 31,416 0.06
2017-08-14 13F-HR MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 57,026 0 -100.00 827 0 -100.00
2017-11-06 13F-HR RHUMBLINE ADVISERS 69,763 71,233 2.11 1,246 1,273 2.17
2017-11-06 13F-HR DekaBank Deutsche Girozentrale 24,600 24,600 0.00 433 366 -15.47
2017-11-13 13F-HR ProShare Advisors LLC 27,215 29,207 7.32 486 522 7.41
2017-11-14 13F-HR Arizona State Retirement System 18,600 18,500 -0.54 332 331 -0.30
2017-11-09 13F-HR CITADEL ADVISORS LLC 92,576 0 -100.00 1,653 0 -100.00
2017-11-13 13F-HR UBS ASSET MANAGEMENT AMERICAS INC 362,947 471,344 29.87 6,482,234 8,422,917 29.94
2017-11-13 13F-HR FEDERATED INVESTORS INC /PA/ 1,045,188 1,049,402 0.40 18,667 18,753 0.46
2017-10-25 13F-HR SIMPLEX TRADING, LLC 2,844 1,975 -30.56 50 35 -30.00
2017-09-15 13F-HR/A-1 ASSETMARK, INC 5 0 -100.00 0 0
2017-11-14 13F-HR TWO SIGMA ADVISERS, LP 13,300 10,300 -22.56 238 184 -22.69
2017-11-14 13F-HR Cubist Systematic Strategies, LLC 87 0 -100.00 2 0 -100.00
2017-10-25 13F-HR Aperio Group, LLC 12,881 13,670 6.13 230 244 6.09
2017-11-13 13F-HR CITIGROUP INC 221,729 188,910 -14.80 3,960 3,376 -14.75
2017-11-06 13F-HR SEI INVESTMENTS CO 72,251 72,251 0.00 1,290 1,291 0.08
2017-11-14 13F-HR BARCLAYS PLC 5,868 842 -85.65 105 15 -85.71
2017-08-08 13F-HR CHICAGO EQUITY PARTNERS LLC 54,895 0 -100.00 796 0 -100.00
2017-11-14 13F-HR THRIVENT FINANCIAL FOR LUTHERANS 21,610 21,860 1.16 386 391 1.30
2017-11-14 13F-HR AQR CAPITAL MANAGEMENT LLC 65,910 24,415 -62.96 1,177 436 -62.96
2017-11-14 13F-HR Invesco Ltd. 1,331,600 1,336,330 0.36 23,782 23,880 0.41
2017-11-09 13F-HR Legal & General Group Plc 64,901 65,812 1.40 1,159 1,176 1.47
2017-10-17 13F-HR CITY HOLDING CO 400 400 0.00 7 7 0.00
2017-11-09 13F-HR AMERICAN INTERNATIONAL GROUP INC 27,095 28,649 5.74 484 512 5.79
2017-11-14 13F-HR Point72 Asset Management, L.P. 175,000 0 -100.00 3,126 0 -100.00
2017-11-03 13F-HR BNP PARIBAS ARBITRAGE, SA 10,545 17,946 70.18 188,334 320,695 70.28
2017-11-14 13F-HR GROUP ONE TRADING, L.P. 801 0 -100.00 14 0 -100.00
2017-11-13 13F-HR MASON STREET ADVISORS, LLC 8,798 9,009 2.40 157 161 2.55
2017-11-13 13F-HR KBC Group NV 46,016 46,016 0.00 822 822 0.00
2017-11-08 13F-HR Zurcher Kantonalbank (Zurich Cantonalbank) 2,083 2,083 0.00 37 37 0.00
2017-10-24 13F-HR BOSTON ADVISORS LLC 35,260 38,895 10.31 630 695 10.32
2017-10-17 13F-HR Creative Planning 93,948 93,948 0.00 1,678 1,679 0.06
2017-08-01 13F-HR Trexquant Investment LP 10,493 0 -100.00 152 0 -100.00
2017-10-27 13F-HR Parkside Financial Bank & Trust 29 29 0.00 1 1 0.00
2017-11-13 13F-HR ENVESTNET ASSET MANAGEMENT INC 252 0 -100.00 5 0 -100.00
2017-11-08 13F-HR ROTHSCHILD ASSET MANAGEMENT INC 360,580 354,053 -1.81 6,440 6,327 -1.75
2017-08-14 13F-HR TUDOR INVESTMENT CORP ET AL 35,387 0 -100.00 513 0
2017-11-07 13F-HR Russell Investments Group, Ltd. 72,466 69,127 -4.61 1,295 1,235 -4.63
2017-10-13 13F-HR ACADIAN ASSET MANAGEMENT LLC 328,807 194,797 -40.76 5,872 3,481 -40.72
2017-11-14 13F-HR A.R.T. Advisors, LLC 16,100 0 -100.00 287 0 -100.00
2017-11-14 13F-HR BlackRock Inc. 5,394,972 5,512,455 2.18 96,355 98,508 2.23
2017-08-11 13F-HR GLOBEFLEX CAPITAL L P 2,430 0 -100.00 35 0 -100.00
2017-07-10 13F-HR ATRIA INVESTMENTS LLC 10,022 0 -100.00 145 0 -100.00
2017-11-14 13F-HR MANUFACTURERS LIFE INSURANCE COMPANY, THE 28,701 28,588 -0.39 512 510 -0.39
2017-11-13 13F-HR PNC FINANCIAL SERVICES GROUP, INC. 60,521 394 -99.35 1,082 7 -99.35
2017-11-14 13F-HR STATE STREET CORP 969,128 952,638 -1.70 17,306 17,026 -1.62
2017-08-14 13F-HR GUGGENHEIM CAPITAL LLC 12,003 0 -100.00 173 0 -100.00
2017-11-13 13F-HR OPPENHEIMER FUNDS INC 12,312 11,663 -5.27 220 208 -5.45
2017-11-06 13F-HR Municipal Employees' Retirement System of Michigan 8,430 13,390 58.84 151 239 58.28
2017-11-14 13F-HR Tower Research Capital LLC (TRC) 2,558 7,623 198.01 37 136 267.57
2017-08-14 13F-HR SPRINGBOK CAPITAL MANAGEMENT, LLC 2,326 0 -100.00 34 0 -100.00
2017-11-14 13F-HR LOOMIS SAYLES & CO L P 1,514 1,799 18.82 27 32 18.52
2017-11-14 13F-HR CREDIT SUISSE AG/ 22,697 46,295 103.97 405 828 104.44
2017-11-15 13F-HR ARGENT CAPITAL MANAGEMENT LLC 59,850 121,275 102.63 1,069 2,167 102.71
2017-11-09 13F-HR TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 12,700 12,700 0.00 227 227 0.00
2017-11-14 13F-HR Piermont Capital Management LLC 27,523 13,490 -50.99 492 241 -51.02
2017-11-03 13F-HR Swiss National Bank 59,400 59,400 0.00 1,061 1,061 0.00
2017-11-02 13F-HR PRUDENTIAL FINANCIAL INC 58,730 63,580 8.26 1,049 1,136 8.29
2017-11-14 13F-HR GEODE CAPITAL MANAGEMENT, LLC 319,031 327,389 2.62 5,697 5,850 2.69
2017-10-26 13F-HR Acrospire Investment Management LLC 1,451 0 -100.00 26 0 -100.00
2017-10-17 13F-HR Fisher Asset Management, LLC 195,547 212,183 8.51 3,492 3,792 8.59
2017-11-09 13F-HR JP MORGAN CHASE & CO 406,625 393,375 -3.26 7,263 7,037 -3.11
2017-11-13 13F-HR TEACHERS ADVISORS INC 549,149 549,149 0.00 9,808 9,813 0.05
2017-11-14 13F-HR PUBLIC SECTOR PENSION INVESTMENT BOARD 18,500 22,698 22.69 330 406 23.03
2017-11-01 13F-HR STATE OF WISCONSIN INVESTMENT BOARD 28,000 28,000 0.00 500 500 0.00
2017-11-13 13F-HR ALLIANCEBERNSTEIN L.P. 45,600 45,600 0.00 814 815 0.12
2017-11-14 13F-HR UBS Group AG 7,529 4,565 -39.37 134 82 -38.81
2017-11-08 13F-HR BRONFMAN E.L. ROTHSCHILD, L.P. 6 0
2017-10-17 13F-HR Cutler Group LP Put 500 0 -100.00 0 0
2017-10-05 13F-HR Lowe fs, LLC 100 2
CUSIP: 03209R103