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 ↓
Miura Global Management 260,000$5,514,6003.77%
Avenir Corp 1,780,540$37,765,2453.54%
Lagoda Investment Management, L.P. 228,595$4,848,5003.18%
Montanaro Asset Management Ltd 848,250$17,991,3833.16%
Trigran Investments, Inc. 1,333,585$28,285,3383.01%
ACK Asset Management 877,400$18,6102.70%
Sargent Investment Group, LLC 353,095$7,489,1451.80%
Pembroke Management, LTD 548,031$11,623,7381.59%
ESSEX INVESTMENT MANAGEMENT CO LLC 378,234$8,022,3431.31%
Mesirow Institutional Investment Management, Inc. 592,076$12,557,9321.27%
View complete list of ENERGY RECOVERY INC shareholders