Ownership history in AVENIR CORP · 48 quarters on record
This page tracks every 13F SEC filing in which AVENIR CORP reported a position in ENERGY RECOVERY INC (ERII). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q4 | REDUCED | 969,580 | -56,236 | -5.5% | 1.42% | $13.1M | $13.49 |
| 2025 Q3 | REDUCED | 1,025,816 | -32,144 | -3.0% | 1.65% | $15.8M | $15.42 |
| 2025 Q2 | REDUCED | 1,057,960 | -8,694 | -0.8% | 1.39% | $13.5M | $12.78 |
| 2025 Q1 | REDUCED | 1,066,654 | -64,719 | -5.7% | 1.78% | $16.9M | $15.89 |
| 2024 Q4 | REDUCED | 1,131,373 | -96,967 | -7.9% | 1.70% | $16.6M | $14.70 |
| 2024 Q3 | REDUCED | 1,228,340 | -98,269 | -7.4% | 2.15% | $21.4M | $17.39 |
| 2024 Q2 | REDUCED | 1,326,609 | -168,629 | -11.3% | 1.71% | $17.6M | $13.29 |
| 2024 Q1 | REDUCED | 1,495,238 | -230,722 | -13.4% | 2.02% | $23.6M | $15.79 |
| 2023 Q4 | REDUCED | 1,725,960 | -54,580 | -3.1% | 2.81% | $32.5M | $18.84 |
| 2023 Q3 | ADDED | 1,780,540 | +67,184 | +3.9% | 3.53% | $37.8M | $21.21 |
As of 2025 Q4 — sorted by position size