Walleye Trading LLC - CECO ENVIRONMENTAL CORP ownership

CECO ENVIRONMENTAL CORP's ticker is CECE and the CUSIP is 125141101. A total of 134 filers reported holding CECO ENVIRONMENTAL CORP in Q4 2016. The put-call ratio across all filers is - and the average weighting 0.2%.

Quarter-by-quarter ownership
Walleye Trading LLC ownership history of CECO ENVIRONMENTAL CORP
ValueSharesWeighting
Q4 2017$175,000
+124.4%
34,100
+508.9%
0.00%0.0%
Q4 2016$78,000
+160.0%
5,600
+43.6%
0.00%
Q4 2015$30,0003,9000.00%
Other shareholders
CECO ENVIRONMENTAL CORP shareholders Q4 2016
NameSharesValueWeighting ↓
Trigran Investments, Inc. 5,698,742$37,555,0007.36%
GFI Investment Counsel Ltd. 573,000$3,776,0000.91%
Minerva Advisors LLC 148,829$979,0000.66%
Continuum Advisory, LLC 125,418$804,0000.50%
WHITE PINE CAPITAL LLC 165,993$1,094,0000.46%
MARTIN & CO INC /TN/ 215,387$1,419,0000.44%
Adirondack Research & Management Inc. 47,499$313,0000.41%
HEARTLAND ADVISORS INC 550,000$3,625,0000.32%
ESSEX INVESTMENT MANAGEMENT CO LLC 209,451$1,380,0000.23%
Savior LLC 21,346$141,0000.18%
View complete list of CECO ENVIRONMENTAL CORP shareholders