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Institutional Investment Manager
MARXE AUSTIN W & GREENHOUSE DAVID M
MARXE AUSTIN W & GREENHOUSE DAVID M (CIK: 0001044321), located at C/O Special Situations Funds, New York, NY. Institutional holdings reported to the SEC.

Institutional Holdings (2014Q1)
Portfolio Summary: 135 holdings with a total value of $903,151,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 Sensus Healthcare, Inc @6.75 6 151,209,346 74,497,000 8.25%
2 ULTRA CLEAN HLDGS INC 2,172,878 28,573,000 3.16%
3 ParkerVision, Inc. 5,881,581 28,232,000 3.13%
4 ADEPT TECHNOLOGY INC 1,467,850 27,889,000 3.09%
5 Broadwind Energy, Inc. 2,190,943 26,773,000 2.96%
6 CEVA Inc 1,355,350 23,800,000 2.64%
7 KOPIN CORP 6,126,598 23,159,000 2.56%
8 POWERSECURE INTL INC 917,000 21,494,000 2.38%
9 ORBITAL ATK INC 2,348,955 21,117,000 2.34%
10 Arrowhead Pharma Inc 1,283,088 21,068,000 2.33%
11 ENTROPIC COMMUNICA 4,636,946 18,965,000 2.10%
12 OMNIVISION TECHS INC 1,022,893 18,105,000 2.00%
13 ERICKSON INC 899,292 17,365,000 1.92%
14 SMART TECHNOLOGIES INC 3,566,746 17,085,000 1.89%
15 Brightcove, Inc. 1,618,933 15,914,000 1.76%
16 SILICON MOTION TECHNOLOGY CO SPONSORED ADR 906,197 15,206,000 1.68%
17 PACIRA BIOSCIENCES INC 200,000 13,998,000 1.55%
18 NEOPHOTONICS CORP 1,691,354 13,412,000 1.49%
19 CPI AEROSTRUCTURES INC COM NEW 931,040 12,104,000 1.34%
20 LIVEPERSON INC 941,538 11,364,000 1.26%
21 Pure Technologies Ltd. 1,869,300 11,299,000 1.25%
22 ARATANA THERAPEUTICS INC COM 600,000 11,136,000 1.23%
23 ALCOBRA LTD 600,000 10,890,000 1.21%
24 STEM CELL THERAPEUTICS CORP 23,809,524 10,450,000 1.16%
25 Vapor Corporation 1,555,968 10,269,000 1.14%
26 LRAD CORP 4,667,710 9,802,000 1.09%
27 MICROFINANCIAL INC 1,208,665 9,512,000 1.05%
28 Sorrento Therapeutics, Inc 725,388 9,299,000 1.03%
29 Carbon Natural Gas Company 10,888,889 9,256,000 1.02%
30 IDEAL PWR INC 1,146,935 9,233,000 1.02%
31 ORAMED 790,000 9,164,000 1.01%
32 Tekmira Pharmaceuticals Corp. 420,562 9,038,000 1.00%
33 TETRAPHASE PHARMACEUTICALS I COM 810,000 8,821,000 0.98%
34 MAXLINEAR INC COM 922,394 8,744,000 0.97%
35 KMG CHEMICALS INC COM 556,996 8,734,000 0.97%
36 INCONTACT INC 863,552 8,290,000 0.92%
37 DESTINATION MATERNITY CORP 299,864 8,216,000 0.91%
38 GeneNews, Ltd. (Canada) (CF) 6,303,240 8,213,000 0.91%
39 SANGAMO BIOSCIENCES INCORPORATED 450,000 8,136,000 0.90%
40 ARGOS THERAPEUTICS INC 750,000 7,500,000 0.83%
41 EXTREME NETWORKS INC COM 1,261,099 7,314,000 0.81%
42 MOSYS INC 1,559,323 7,079,000 0.78%
43 RMG NETWORKS HLDG CORP 1,191,959 6,723,000 0.74%
44 Fuelcell Energy Inc 2,589,105 6,421,000 0.71%
45 MAG SILVER CORP COM 324,000 6,156,000 0.68%
46 ARDMORE SHIPPING CORP 460,300 6,122,000 0.68%
47 CONSTANT CONTACT INC 248,498 6,078,000 0.67%
48 NEONODE INC 1,051,650 5,984,000 0.66%
49 FIVE PRIME THERAPEUTICS INC 300,000 5,898,000 0.65%
50 Image Sensing Systems Inc 1,109,646 5,881,000 0.65%
Page 1 of 3

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001044321-14-000078, filed 2014.05.14).

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.