Walleye Trading’s Repligen RGEN Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | – | Sell |
-3,000
| Closed | -$492K | – | 4602 |
|
|
2025
Q4 | $492K | Buy |
3,000
+2,500
| +500% | +$392K | ﹤0.01% | 2833 |
|
|
2025
Q3 | $66.8K | Buy |
+500
| New | +$60.7K | ﹤0.01% | 3862 |
|
|
2025
Q1 | – | Sell |
-3,400
| Closed | -$489K | – | 4616 |
|
|
2024
Q4 | $489K | Buy |
3,400
+200
| +6% | +$28.7K | ﹤0.01% | 2652 |
|
|
2024
Q3 | $476K | Sell |
3,200
-22,400
| -88% | -$3.21M | ﹤0.01% | 2542 |
|
|
2024
Q2 | $3.23M | Sell |
25,600
-42,700
| -63% | -$6.69M | 0.01% | 1306 |
|
|
2024
Q1 | $12.6M | Buy |
68,300
+39,800
| +140% | +$7.58M | 0.03% | 601 |
|
|
2023
Q4 | $5.12M | Buy |
28,500
+5,200
| +22% | +$809K | 0.01% | 1224 |
|
|
2023
Q3 | $3.7M | Buy |
23,300
+15,700
| +207% | +$2.57M | 0.01% | 1321 |
|
|
2023
Q2 | $1.08M | Buy |
7,600
+5,200
| +217% | +$834K | ﹤0.01% | 2113 |
|
|
2023
Q1 | $404K | Buy |
2,400
+800
| +50% | +$143K | ﹤0.01% | 2975 |
|
|
2022
Q4 | $271K | Buy |
+1,600
| New | +$290K | ﹤0.01% | 3335 |
|
|
2022
Q2 | – | Sell |
-5,600
| Closed | -$1.05M | – | 5581 |
|
|
2022
Q1 | $1.05M | Sell |
5,600
-2,400
| -30% | -$456K | ﹤0.01% | 2187 |
|
|
2021
Q4 | $2.12M | Sell |
8,000
-5,700
| -42% | -$1.54M | 0.01% | 1590 |
|
|
2021
Q3 | $3.96M | Buy |
13,700
+11,000
| +407% | +$2.82M | 0.01% | 1068 |
|
|
2021
Q2 | $539K | Sell |
2,700
-6,200
| -70% | -$1.2M | ﹤0.01% | 2823 |
|
|
2021
Q1 | $1.73M | Buy |
8,900
+8,200
| +1,171% | +$1.68M | 0.01% | 1444 |
|
|
2020
Q4 | $134K | Sell |
700
-300
| -30% | -$54.6K | ﹤0.01% | 3771 |
|
|
2020
Q3 | $148K | Sell |
1,000
-1,200
| -55% | -$172K | ﹤0.01% | 3193 |
|
|
2020
Q2 | $272K | Buy |
+2,200
| New | +$259K | ﹤0.01% | 2832 |
|
|
2020
Q1 | – | Sell |
-3,100
| Closed | -$287K | – | 4453 |
|
|
2019
Q4 | $287K | Sell |
3,100
-1,800
| -37% | -$151K | ﹤0.01% | 2860 |
|
|
2019
Q3 | $376K | Sell |
4,900
-42,200
| -90% | -$3.69M | ﹤0.01% | 2404 |
|
|
2019
Q2 | $4.05M | Buy |
47,100
+43,100
| +1,078% | +$2.94M | 0.03% | 583 |
|
|
2019
Q1 | $236K | Sell |
4,000
-52,900
| -93% | -$3.04M | ﹤0.01% | 2903 |
|
|
2018
Q4 | $3M | Buy |
56,900
+50,200
| +749% | +$2.94M | 0.02% | 769 |
|
|
2018
Q3 | $372K | Sell |
6,700
-3,200
| -32% | -$165K | ﹤0.01% | 3198 |
|
|
2018
Q2 | $466K | Sell |
9,900
-13,900
| -58% | -$572K | ﹤0.01% | 2919 |
|
|
2018
Q1 | $861K | Buy |
23,800
+19,600
| +467% | +$689K | ﹤0.01% | 2073 |
|
|
2017
Q4 | $152 | Buy |
+4,200
| New | +$152K | ﹤0.01% | 3635 |
|
Other funds holding RGEN
UCFA
VCM
VPM
MC
Walleye Trading's RGEN Position: Q1 2026 in Review
Walleye Trading sold out of Repligen (RGEN) in Q1 2026, closing a stake of 18 shares — an estimated $2.95K sold.
Walleye Trading first reported a position in RGEN in Q2 2015 and held it in 20 quarters. The position peaked at $1.86M in Q4 2023. 441 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.
- Walleye Trading reported no remaining Repligen position as of Q1 2026 after selling out during the quarter.
- Walleye Trading sold 18 Repligen shares in Q1 2026, an estimated $2.95K.
- Walleye Trading first reported a position in Repligen in Q2 2015 and held it in 20 quarters.
- Walleye Trading's Repligen position peaked at $1.86M in Q4 2023.
- 441 funds tracked by Wall St. Rank held Repligen as of Q1 2026.
Based on Walleye Trading's 13F filing for Q1 2026, filed 11 May 2026.