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

Institutional Holders (2015Q3)
Portfolio Summary: 95 Institutional holders with a total value of $198,844,010.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PRICE T ROWE ASSOCIATES INC /MD/ 896,333 31,874,000 16.03%
2 NUANCE INVESTMENTS, LLC 737,088 26,211,000 13.18%
3 VANGUARD GROUP INC 562,572 20,005,000 10.06%
4 BlackRock Fund Advisors 435,911 15,501,000 7.80%
5 INTREPID CAPITAL MANAGEMENT INC 304,737 10,836,000 5.45%
6 RENAISSANCE TECHNOLOGIES LLC 276,100 9,818,000 4.94%
7 ROYCE & ASSOCIATES LP 253,997 9,032,000 4.54%
8 DIMENSIONAL FUND ADVISORS LP 248,338 8,831,000 4.44%
9 BlackRock Institutional Trust Company, N.A. 202,379 7,197,000 3.62%
10 AMERIPRISE FINANCIAL INC 183,762 6,532,000 3.28%
11 Bank of New York Mellon Corp 109,998 3,911,000 1.97%
12 BLACKROCK ADVISORS LLC 106,457 3,786,000 1.90%
13 DEPRINCE RACE & ZOLLO INC 92,463 3,288,000 1.65%
14 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 86,300 3,069,000 1.54%
15 ING GROEP NV 86,000 3,060,000 1.54%
16 UNIPLAN INVESTMENT COUNSEL, INC. 84,173 2,995,000 1.51%
17 FULLER & THALER ASSET MANAGEMENT, INC. 82,635 2,939,000 1.48%
18 NORTHERN TRUST CORP 78,432 2,789,000 1.40%
19 GEODE CAPITAL MANAGEMENT, LLC 53,701 1,909,000 0.96%
20 PRINCIPAL FINANCIAL GROUP INC 44,958 1,599,000 0.80%
21 Aristotle Capital Boston, LLC 44,413 1,579,000 0.79%
22 PARAMETRIC PORTFOLIO ASSOCIATES LLC 37,990 1,351,000 0.68%
23 MENTA CAPITAL LLC 37,504 1,334,000 0.67%
24 BlackRock Investment Management, LLC 31,553 1,122,000 0.56%
25 DEUTSCHE BANK AG\ 30,539 1,085,000 0.55%
26 NORGES BANK 29,262 1,041,000 0.52%
27 PHILADELPHIA TRUST CO 27,500 978,000 0.49%
28 South Dakota Investment Council 26,600 946,000 0.48%
29 TIAA CREF INVESTMENT MANAGEMENT LLC 26,202 932,000 0.47%
30 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 24,495 872,000 0.44%
31 Invesco Ltd. 21,140 752,000 0.38%
32 BlackRock Group LTD 19,372 689,000 0.35%
33 EAGLE BOSTON INVESTMENT MANAGEMENT INC 17,525 623,000 0.31%
34 PRUDENTIAL FINANCIAL INC 16,352 581,000 0.29%
35 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 13,492 480,000 0.24%
36 Nine Chapters Capital Management LLC 13,200 469,000 0.24%
37 TEACHERS ADVISORS, LLC 12,829 456,000 0.23%
38 MORGAN STANLEY 12,717 452,000 0.23%
39 RHUMBLINE ADVISERS 12,523 445,000 0.22%
40 I.G. INVESTMENT MANAGEMENT, LTD. 12,080 430,000 0.22%
41 TWO SIGMA ADVISERS, LP 10,643 380,000 0.19%
42 ALLIANCEBERNSTEIN L.P. 10,039 357,000 0.18%
43 STIFEL FINANCIAL CORP 9,635 343,000 0.17%
44 HighTower Advisors, LLC 9,448 341,000 0.17%
45 Swiss National Bank 8,900 316,000 0.16%
46 CITADEL ADVISORS LLC 8,028 285,000 0.14%
47 PUBLIC SECTOR PENSION INVESTMENT BOARD 7,880 280,000 0.14%
48 UBS Group AG 7,436 265,000 0.13%
49 TD ASSET MANAGEMENT INC 7,400 263,000 0.13%
50 COMERICA BANK 7,342 261,000 0.13%
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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.