Dark
Light
System
Security
ORBITAL ATK INC
ORBITAL ATK INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q4)
Portfolio Summary: 72 Institutional holders with a total value of $137,197,569.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 G2 Investment Partners Management LLC 1,713,689 22,055,000 16.08%
2 AWM Investment Company, Inc. 1,702,446 21,910,000 15.97%
3 RENAISSANCE TECHNOLOGIES LLC 1,029,839 13,254,000 9.66%
4 WELLINGTON MANAGEMENT GROUP LLP 936,800 12,057,000 8.79%
5 IAT REINSURANCE CO LTD. 750,000 9,653,000 7.04%
6 BlackRock Institutional Trust Company, N.A. 571,710 7,358,000 5.36%
7 VANGUARD GROUP INC 432,511 5,567,000 4.06%
8 DIMENSIONAL FUND ADVISORS LP 362,697 4,668,000 3.40%
9 BlackRock Fund Advisors 333,447 4,291,000 3.13%
10 Granite Investment Partners, LLC 249,058 3,206,000 2.34%
11 Teton Advisors, Inc. 196,772 2,532,000 1.85%
12 Informed Momentum Co LLC 189,743 2,442,000 1.78%
13 Timpani Capital Management LLC 161,211 2,075,000 1.51%
14 PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. 158,900 2,045,043 1.49%
15 Invesco Ltd. 153,611 1,977,000 1.44%
16 Millrace Asset Group, Inc. 150,000 1,931,000 1.41%
17 NORTHERN TRUST CORP 132,528 1,706,000 1.24%
18 STATE STREET CORP 128,295 1,649,000 1.20%
19 RUSSELL FRANK CO/ 126,468 1,637,000 1.19%
20 Bank of New York Mellon Corp 100,139 1,289,000 0.94%
21 ESSEX INVESTMENT MANAGEMENT CO LLC 95,611 1,231,000 0.90%
22 GEODE CAPITAL MANAGEMENT, LLC 91,857 1,182,000 0.86%
23 TWO SIGMA INVESTMENTS, LP 91,051 1,172,000 0.85%
24 PALISADE CAPITAL MANAGEMENT, LP 76,200 981,000 0.72%
25 Coe Capital Management, LLC 64,866 834,825 0.61%
26 WHITE PINE CAPITAL LLC 53,070 683,000 0.50%
27 TIAA CREF INVESTMENT MANAGEMENT LLC 47,447 611,000 0.45%
28 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 43,367 558,000 0.41%
29 BlackRock Investment Management, LLC 42,200 543,000 0.40%
30 BRIDGEWAY CAPITAL MANAGEMENT, LLC 41,500 534,000 0.39%
31 ANALYTIC INVESTORS, LLC 32,422 417,000 0.30%
32 AQR CAPITAL MANAGEMENT LLC 28,500 367,000 0.27%
33 A.R.T. Advisors, LLC 26,186 337,000 0.25%
34 WEDGE CAPITAL MANAGEMENT L L P/NC 24,000 309,000 0.23%
35 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 22,287 287,000 0.21%
36 Hodges Capital Management Inc. 20,000 257,000 0.19%
37 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 18,923 244,000 0.18%
38 MILLENNIUM MANAGEMENT LLC 18,727 241,000 0.18%
39 LUCUS ADVISORS LLC 18,036 232,000 0.17%
40 TEACHERS ADVISORS, LLC 17,235 222,000 0.16%
41 D. E. Shaw & Co., Inc. 16,007 206,000 0.15%
42 PARAMETRIC PORTFOLIO ASSOCIATES LLC 15,396 198,000 0.14%
43 PEAK6 Group LLC 15,000 193,000 0.14% Call
44 BlueCrest Capital Management Ltd 14,862 191,000 0.14%
45 Century Capital Management, LLC 14,328 184,000 0.13%
46 TFS CAPITAL LLC 12,498 161,000 0.12%
47 Cambridge Investment Research Advisors, Inc. 12,330 159,000 0.12%
48 MORGAN STANLEY 11,658 150,000 0.11%
49 NEW YORK STATE COMMON RETIREMENT FUND 11,000 142,000 0.10%
50 RHUMBLINE ADVISERS 10,888 140,000 0.10%
Page 1 of 2

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.