Dark
Light
System
Security
VICOR CORP COM
VICOR CORP COM. Institutional holdings reported to the SEC.

Institutional Holders (2017Q2)
Portfolio Summary: 95 Institutional holders with a total value of $176,316,902.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 BlackRock Finance, Inc. 2,082,091 37,269,000 21.14%
2 ASHFORD CAPITAL MANAGEMENT INC 1,803,020 32,274,000 18.30%
3 VANGUARD GROUP INC 831,177 14,878,000 8.44%
4 DIMENSIONAL FUND ADVISORS LP 633,022 11,331,000 6.43%
5 Senvest Management, LLC 632,006 11,313,000 6.42%
6 STATE STREET CORP 431,379 7,722,000 4.38%
7 RENAISSANCE TECHNOLOGIES LLC 213,800 3,827,000 2.17%
8 NORTHERN TRUST CORP 207,531 3,715,000 2.11%
9 Manatuck Hill Partners, LLC 179,597 3,215,000 1.82%
10 Janney Montgomery Scott LLC 162,959 2,917,000 1.65%
11 Bank of New York Mellon Corp 150,902 2,701,000 1.53%
12 GEODE CAPITAL MANAGEMENT, LLC 137,754 2,465,000 1.40%
13 Trellus Management Company, LLC 136,125 2,437,000 1.38%
14 PRINCIPAL FINANCIAL GROUP INC 122,722 2,197,000 1.25%
15 CIBC Private Wealth Group LLC 118,300 2,118,000 1.20%
16 NEEDHAM INVESTMENT MANAGEMENT LLC 114,700 2,053,000 1.16%
17 GABELLI FUNDS LLC 114,000 2,041,000 1.16%
18 Robeco Schweiz AG 100,000 1,820,000 1.03%
19 GAMCO INVESTORS, INC. ET AL 100,000 1,790,000 1.02%
20 AMERIPRISE FINANCIAL INC 84,434 1,511,000 0.86%
21 GUGGENHEIM CAPITAL LLC 73,263 1,310,000 0.74%
22 CADENCE CAPITAL MANAGEMENT LLC 72,167 1,292,000 0.73%
23 Capital Impact Advisors, LLC 69,665 1,247,000 0.71%
24 MENTA CAPITAL LLC 58,834 1,053,000 0.60%
25 Teton Advisors, Inc. 57,800 1,035,000 0.59%
26 MORGAN STANLEY 55,426 992,000 0.56%
27 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 53,501 958,000 0.54%
28 TIAA CREF INVESTMENT MANAGEMENT LLC 47,869 857,000 0.49%
29 IRONWOOD INVESTMENT MANAGEMENT LLC 42,755 765,000 0.43%
30 Informed Momentum Co LLC 40,425 724,000 0.41%
31 PEAK6 Group LLC 38,500 689,000 0.39% Call
32 LADENBURG THALMANN FINANCIAL SERVICES INC. 38,362 687,000 0.39%
33 Freedom Investment Management, Inc. 37,029 663,000 0.38%
34 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 36,100 647,000 0.37%
35 STRS OHIO 35,300 631,000 0.36%
36 RHUMBLINE ADVISERS 34,130 611,000 0.35%
37 GOLDMAN SACHS GROUP INC 32,582 583,000 0.33%
38 SUSQUEHANNA INTERNATIONAL GROUP, LLP 31,000 555,000 0.31% Put
39 Legal & General Group Plc 29,892 535,000 0.30%
40 TEACHERS ADVISORS, LLC 29,703 532,000 0.30%
41 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 29,645 531,000 0.30%
42 SUSQUEHANNA INTERNATIONAL GROUP, LLP 29,358 526,000 0.30%
43 CANADA LIFE ASSURANCE Co 29,415 525,000 0.30%
44 Swiss National Bank 28,932 518,000 0.29%
45 PRUDENTIAL FINANCIAL INC 28,692 514,000 0.29%
46 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 27,200 487,000 0.28%
47 BANK OF AMERICA CORP /DE/ 23,186 415,000 0.24%
48 PARAMETRIC PORTFOLIO ASSOCIATES LLC 22,042 395,000 0.22%
49 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 20,601 369,000 0.21%
50 BROWN ADVISORY INC 20,200 362,000 0.21%
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.