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.