D. E. Shaw & Co., Inc. - ENERGY RECOVERY INC ownership

ENERGY RECOVERY INC's ticker is ERII and the CUSIP is 29270J100. A total of 61 filers reported holding ENERGY RECOVERY INC in Q2 2015. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
D. E. Shaw & Co., Inc. ownership history of ENERGY RECOVERY INC
ValueSharesWeighting
Q3 2023$3,260,168
-27.6%
153,709
-4.6%
0.00%
-40.0%
Q2 2023$4,505,568
+71.7%
161,201
+41.6%
0.01%
+66.7%
Q1 2023$2,624,565
+59.9%
113,864
+42.2%
0.00%
+50.0%
Q4 2022$1,640,962
+110.4%
80,086
+123.1%
0.00%
+100.0%
Q3 2022$780,000
+154.1%
35,900
+127.2%
0.00%
Q2 2022$307,000
-48.7%
15,800
-51.5%
0.00%
-100.0%
Q1 2021$598,000
+44.8%
32,592
-30.9%
0.00%0.0%
Q4 2017$413,000
-87.5%
47,161
-87.3%
0.00%
-83.3%
Q2 2016$3,306,000
-26.6%
371,930
-14.6%
0.01%
-25.0%
Q1 2016$4,503,000
+2387.8%
435,486
+1604.4%
0.01%
Q4 2015$181,000
+483.9%
25,551
+75.4%
0.00%
Q3 2015$31,000
-59.7%
14,569
-50.8%
0.00%
Q1 2015$77,000
-4.9%
29,625
+95.5%
0.00%
Q1 2014$81,00015,1530.00%
Other shareholders
ENERGY RECOVERY INC shareholders Q2 2015
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