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AMERICAN SCIENCE & ENGR INC
AMERICAN SCIENCE & ENGR INC . Institutional holdings reported to the SEC.

Institutional Holders (2014Q1)
Portfolio Summary: 118 Institutional holders with a total value of $414,400,513.
#
Manager Name
Shares
Value ($)
%
Options
Notes
51 SUSQUEHANNA INTERNATIONAL GROUP, LLP 8,500 571,000 0.14% Put
52 ProShare Advisors LLC 8,406 565,000 0.14%
53 I.G. INVESTMENT MANAGEMENT, LTD. 8,365 562,000 0.14%
54 COMERICA BANK 7,970 535,000 0.13%
55 TEXAS PERMANENT SCHOOL FUND CORP 7,941 533,000 0.13%
56 Swiss National Bank 7,700 517,000 0.12%
57 METROPOLITAN LIFE INSURANCE CO/NY 7,526 506,000 0.12%
58 TD ASSET MANAGEMENT INC 7,500 504,000 0.12%
59 MARTINGALE ASSET MANAGEMENT L P 7,202 484,000 0.12%
60 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 7,132 479,000 0.12%
61 State of Tennessee, Department of Treasury 7,100 477,000 0.12%
62 Janney Montgomery Scott LLC 7,096 476,638 0.12%
63 DEUTSCHE BANK AG\ 6,994 469,000 0.11%
64 VOYA INVESTMENT MANAGEMENT LLC 6,960 468,000 0.11%
65 UBS AG 6,890 463,000 0.11%
66 BROWN BROTHERS HARRIMAN & CO 6,900 463,000 0.11%
67 AMERICAN INTERNATIONAL GROUP, INC. 6,476 434,993 0.10%
68 MANUFACTURERS LIFE INSURANCE COMPANY, THE 6,435 433,000 0.10%
69 JPMORGAN CHASE & CO 6,275 421,000 0.10%
70 SUSQUEHANNA INTERNATIONAL GROUP, LLP 5,800 390,000 0.09% Call
71 TDAM USA INC. 5,800 390,000 0.09%
72 ROYAL BANK OF CANADA 5,744 385,000 0.09%
73 BLACKROCK ADVISORS LLC 5,445 366,000 0.09%
74 Arizona State Retirement System 5,407 363,000 0.09%
75 CITIGROUP INC 4,727 317,000 0.08%
76 CREDIT SUISSE AG/ 4,626 310,000 0.07%
77 MARTIN & CO INC /TN/ 4,574 307,000 0.07%
78 A.R.T. Advisors, LLC 4,176 280,000 0.07%
79 MILLENNIUM MANAGEMENT LLC 3,729 250,000 0.06%
80 Nine Chapters Capital Management LLC 3,700 249,000 0.06%
81 Yorktown Management & Research Co Inc 3,600 242,000 0.06%
82 Louisiana State Employees Retirement System 3,600 242,000 0.06%
83 SUSQUEHANNA INTERNATIONAL GROUP, LLP 3,458 232,000 0.06%
84 SEI TRUST CO 3,400 228,000 0.06%
85 CAPSTONE ASSET MANAGEMENT CO 3,333 224,000 0.05%
86 STRS OHIO 2,600 175,000 0.04%
87 KBC Group NV 2,011 135,000 0.03%
88 TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 2,000 134,000 0.03%
89 PineBridge Investments, L.P. 1,957 132,000 0.03%
90 Municipal Employees' Retirement System of Michigan 1,900 128,000 0.03%
91 FIRST QUADRANT LLC/CA 1,837 123,000 0.03%
92 PICTON MAHONEY ASSET MANAGEMENT 1,800 121,000 0.03% SH
93 BARCLAYS PLC 1,803 121,000 0.03%
94 Index Management Solutions, LLC 1,326 89,000 0.02%
95 WELLS FARGO & COMPANY/MN 1,298 88,000 0.02%
96 OFI Advisors LLC 1,197 80,000 0.02%
97 Kavar Capital Partners, LLC 1,100 73,000 0.02%
98 MASON STREET ADVISORS, LLC 960 64,000 0.02%
99 Parallax Volatility Advisers, L.P. 700 47,000 0.01% Put
100 PNC FINANCIAL SERVICES GROUP, INC. 630 42,000 0.01%
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From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.