UBS AG - ENERGY RECOVERY INC ownership

ENERGY RECOVERY INC's ticker is ERII and the CUSIP is 29270J100. A total of 82 filers reported holding ENERGY RECOVERY INC in Q4 2013. The put-call ratio across all filers is 1.08 and the average weighting 0.0%.

Quarter-by-quarter ownership
UBS AG ownership history of ENERGY RECOVERY INC
ValueSharesWeighting
Q3 2014$129,000
-21.3%
36,440
+9.4%
0.00%
Q2 2014$164,000
+12.3%
33,297
+21.8%
0.00%
Q1 2014$146,000
+630.0%
27,340
+659.4%
0.00%
Q4 2013$20,000
-83.5%
3,600
-78.4%
0.00%
Q3 2013$121,000
+163.0%
16,681
+49.8%
0.00%
Q2 2013$46,00011,1330.00%
Other shareholders
ENERGY RECOVERY INC shareholders Q4 2013
NameSharesValueWeighting ↓
Trigran Investments, Inc. 5,520,408$41,928,0008.21%
Avenir Corp 1,576,727$11,975,0001.36%
ELKHORN PARTNERS LIMITED PARTNERSHIP 69,000$524,0000.41%
683 Capital Management, LLC 520,000$3,950,0000.32%
FNY Investment Advisers, LLC 50,007$379,0000.22%
Monarch Partners Asset Management LLC 107,324$815,0000.20%
ESSEX INVESTMENT MANAGEMENT CO LLC 141,552$1,075,0000.18%
HEARTLAND ADVISORS INC 168,943$1,283,0000.11%
Redmond Asset Management, LLC 31,041$236,0000.10%
NJ State Employees Deferred Compensation Plan 59,000$448,0000.08%
View complete list of ENERGY RECOVERY INC shareholders