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S&CO Inc

SEC CIK
0001082461
Latest filing
Aug 6, 2026

ERII holding history

Energy Recovery, Inc. in every 13F filed by S&CO Inc, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

ERII overviewAll 13F holders of ERIIFull Q2 2026 holdings

Shares (Q2 2026)
13,000
Value
$117.0K
% of portfolio
<0.1%
Quarters held
9
Since Q2 2024
Holdings of ERII by S&CO Inc, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202613,000$117.0K<0.1%00.0%UnchangedHolders
Q1 202613,000$130.0K<0.1%+1,000+8.3%AddedHolders
Q4 202512,000$161.0K<0.1%00.0%UnchangedHolders
Q3 202512,000$185.0K<0.1%+1,000+9.1%AddedHolders
Q2 202511,000$140.0K<0.1%00.0%UnchangedHolders
Q1 202511,000$174.0K<0.1%00.0%UnchangedHolders
Q4 202411,000$161.0K<0.1%00.0%UnchangedHolders
Q3 202411,000$191.0K<0.1%00.0%UnchangedHolders
Q2 202411,000$146.0K<0.1%+11,000NewHolders