Granahan Investment Management - ENERGY RECOVERY INC ownership

ENERGY RECOVERY INC's ticker is ERII and the CUSIP is 29270J100. A total of 173 filers reported holding ENERGY RECOVERY INC in Q4 2022. The put-call ratio across all filers is 0.31 and the average weighting 0.3%.

Quarter-by-quarter ownership
Granahan Investment Management ownership history of ENERGY RECOVERY INC
ValueSharesWeighting
Q3 2023$732,190
-25.9%
34,521
-2.3%
0.03%
-13.3%
Q2 2023$987,865
+16.3%
35,344
-4.1%
0.03%
+15.4%
Q1 2023$849,646
+82.8%
36,861
+62.5%
0.03%
+85.7%
Q4 2022$464,89822,6890.01%
Other shareholders
ENERGY RECOVERY INC shareholders Q4 2022
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