ESSEX INVESTMENT MANAGEMENT CO LLC - MATTSON TECHNOLOGY INC ownership

MATTSON TECHNOLOGY INC's ticker is MTSN and the CUSIP is 577223100. A total of 69 filers reported holding MATTSON TECHNOLOGY INC in Q3 2014. The put-call ratio across all filers is - and the average weighting 0.3%.

Quarter-by-quarter ownership
ESSEX INVESTMENT MANAGEMENT CO LLC ownership history of MATTSON TECHNOLOGY INC
ValueSharesWeighting
Q3 2014$943,000
+6.0%
381,960
-6.1%
0.14%
+9.9%
Q2 2014$890,000
+3.6%
406,584
+9.8%
0.13%
+4.8%
Q1 2014$859,000
-5.7%
370,394
+11.4%
0.12%
-3.1%
Q4 2013$911,000332,5900.13%
Other shareholders
MATTSON TECHNOLOGY INC shareholders Q3 2014
NameSharesValueWeighting ↓
Invicta Capital Management, LLC 3,000,000$6,570,0003.42%
Firsthand Capital Management, Inc. 3,280,000$7,183,0003.28%
TANAKA CAPITAL MANAGEMENT INC 740,053$1,822,0002.54%
Adirondack Research & Management Inc. 2,321,769$5,085,0001.72%
KEANE CAPITAL MANAGEMENT INC 769,166$1,684,0001.57%
Potomac Capital Management, Inc. 891,116$1,952,0001.53%
BRIGHTFIELD CAPITAL MANAGEMENT LLC 540,000$1,183,0001.47%
Crosspoint Capital Strategies, LLC 1,086,021$2,292,0000.86%
PARADIGM CAPITAL MANAGEMENT INC/NY 3,710,800$8,127,0000.60%
GRUBER & MCBAINE CAPITAL MANAGEMENT LLC 1,700,000$3,724,0000.56%
View complete list of MATTSON TECHNOLOGY INC shareholders