David Shaw’s Energy Recovery ERII Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $1.97M | Buy |
218,707
+204,807
| +1,473% | +$1.95M | ﹤0.01% | 3223 |
|
|
2026
Q1 | $140K | Sell |
13,900
-49,195
| -78% | -$644K | ﹤0.01% | 4250 |
|
|
2025
Q4 | $851K | Sell |
63,095
-283,706
| -82% | -$4.3M | ﹤0.01% | 3636 |
|
|
2025
Q3 | $5.35M | Sell |
346,801
-26,891
| -7% | -$379K | ﹤0.01% | 2159 |
|
|
2025
Q2 | $4.78M | Buy |
373,692
+111,053
| +42% | +$1.5M | ﹤0.01% | 2070 |
|
|
2025
Q1 | $4.17M | Sell |
262,639
-116,779
| -31% | -$1.78M | ﹤0.01% | 2027 |
|
|
2024
Q4 | $5.58M | Sell |
379,418
-82,055
| -18% | -$1.4M | ﹤0.01% | 1881 |
|
|
2024
Q3 | $8.03M | Sell |
461,473
-207,002
| -31% | -$3.27M | 0.01% | 1581 |
|
|
2024
Q2 | $8.88M | Buy |
668,475
+187,833
| +39% | +$2.59M | 0.01% | 1405 |
|
|
2024
Q1 | $7.59M | Buy |
480,642
+341,420
| +245% | +$5.43M | 0.01% | 1572 |
|
|
2023
Q4 | $2.62M | Sell |
139,222
-14,487
| -9% | -$269K | ﹤0.01% | 2459 |
|
|
2023
Q3 | $3.26M | Sell |
153,709
-7,492
| -5% | -$200K | ﹤0.01% | 2191 |
|
|
2023
Q2 | $4.51M | Buy |
161,201
+47,337
| +42% | +$1.18M | ﹤0.01% | 1926 |
|
|
2023
Q1 | $2.62M | Buy |
113,864
+33,778
| +42% | +$742K | ﹤0.01% | 2482 |
|
|
2022
Q4 | $1.64M | Buy |
80,086
+44,186
| +123% | +$967K | ﹤0.01% | 3093 |
|
|
2022
Q3 | $780K | Buy |
35,900
+20,100
| +127% | +$453K | ﹤0.01% | 3766 |
|
|
2022
Q2 | $307K | Buy |
+15,800
| New | +$306K | ﹤0.01% | 4351 |
|
|
2021
Q2 | – | Sell |
-32,592
| Closed | -$598K | – | 4813 |
|
|
2021
Q1 | $598K | Buy |
+32,592
| New | +$522K | ﹤0.01% | 3424 |
|
|
2018
Q1 | – | Sell |
-47,161
| Closed | -$413K | – | 3570 |
|
|
2017
Q4 | $413K | Buy |
+47,161
| New | +$430K | ﹤0.01% | 3087 |
|
|
2016
Q3 | – | Sell |
-371,930
| Closed | -$3.31M | – | 3411 |
|
|
2016
Q2 | $3.31M | Sell |
371,930
-63,556
| -15% | -$678K | 0.01% | 1573 |
|
|
2016
Q1 | $4.5M | Buy |
435,486
+409,935
| +1,604% | +$2.99M | 0.01% | 1343 |
|
|
2015
Q4 | $181K | Buy |
25,551
+10,982
| +75% | +$69.3K | ﹤0.01% | 3583 |
|
|
2015
Q3 | $31K | Buy |
+14,569
| New | +$37.8K | ﹤0.01% | 3675 |
|
|
2015
Q2 | – | Sell |
-29,625
| Closed | -$77K | – | 3764 |
|
|
2015
Q1 | $77K | Buy |
+29,625
| New | +$102K | ﹤0.01% | 3540 |
|
|
2014
Q2 | – | Sell |
-15,153
| Closed | -$81K | – | 4283 |
|
|
2014
Q1 | $81K | Buy |
+15,153
| New | +$74.6K | ﹤0.01% | 4184 |
|
Other funds holding ERII
David Shaw's ERII Position: Q2 2026 in Review
David Shaw increased its Energy Recovery (ERII) stake by 1,473% in Q2 2026, buying an estimated $1.95M and bringing the position to 218,707 shares worth $1.97M. The position accounts for ﹤0.01% of the portfolio, ranked #3223.
David Shaw first reported a position in ERII in Q1 2014 and has held it in 25 quarters since. The position peaked at $8.88M in Q2 2024. 199 funds tracked by Wall St. Rank hold ERII as of Q2 2026.
- David Shaw held 218,707 shares of Energy Recovery worth $1.97M as of Q2 2026.
- David Shaw bought 204,807 Energy Recovery shares in Q2 2026, an estimated $1.95M.
- Energy Recovery made up ﹤0.01% of David Shaw's portfolio in Q2 2026, its #3223 holding.
- David Shaw first reported a position in Energy Recovery in Q1 2014 and has held it in 25 quarters since.
- David Shaw's Energy Recovery position peaked at $8.88M in Q2 2024.
- 199 funds tracked by Wall St. Rank held Energy Recovery as of Q2 2026.
Based on D.E. Shaw & Co's 13F filing for Q2 2026, filed 14 Aug 2026.