Skip to main content
ERII logo

ERII · Energy Recovery, Inc.

Track ERII — free
$7.73 -0.05 (-0.58%)
Market Cap
$396.62M
Shares
51.04M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 199
Total Value: $401,867,519
Total Shares: 44,553,030
Showing 1–100 of 206 holdings by value · page 1 of 3

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 199 13F filers · Δ vs Mar 31, 2026
Top Holder
14.2%
Sep 2023 → Jun 2026 · range 10.3% – 14.4%
+0.5 pts
Top 5
36.6%
Sep 2023 → Jun 2026 · range 36.1% – 44.7%
−6.9 pts
Top 10
52.3%
Sep 2023 → Jun 2026 · range 51.8% – 59.5%
−7.2 pts
HHI
442
Sep 2023 → Jun 2026 · range 390 – 538
Broadly held−93

Quarterly Activity

vs Mar 31, 2026
New
42
Increased
81
Decreased
44
Sold Out
40
Unchanged
32
Holder count: +2
Institutional value: -10.1%
Shares held: +0.4%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 206
Export CSV
Holder Value (USD) % of 13F Shares Open
Key facts CIK 1421517 CUSIP 29270J100 13F (30d) 166 filings 160 filers Visit website Investor relations