Walleye Trading’s Regeneron Pharmaceuticals REGN Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $3.79M | Sell |
4,900
-12,100
| -71% | -$9.26M | 0.01% | 1306 |
|
|
2025
Q4 | $13.1M | Buy |
17,000
+13,400
| +372% | +$9.1M | 0.02% | 798 |
|
|
2025
Q3 | $2.02M | Sell |
3,600
-1,700
| -32% | -$961K | ﹤0.01% | 1815 |
|
|
2025
Q2 | $2.78M | Sell |
5,300
-8,800
| -62% | -$4.91M | 0.01% | 1534 |
|
|
2025
Q1 | $8.94M | Sell |
14,100
-1,800
| -11% | -$1.24M | 0.02% | 794 |
|
|
2024
Q4 | $11.3M | Buy |
15,900
+10,200
| +179% | +$8.56M | 0.02% | 725 |
|
|
2024
Q3 | $5.99M | Buy |
5,700
+4,600
| +418% | +$5.12M | 0.01% | 1033 |
|
|
2024
Q2 | $1.16M | Sell |
1,100
-200
| -15% | -$194K | ﹤0.01% | 1961 |
|
|
2024
Q1 | $1.25M | Sell |
1,300
-11,600
| -90% | -$11M | ﹤0.01% | 2062 |
|
|
2023
Q4 | $11.3M | Sell |
12,900
-300
| -2% | -$247K | 0.02% | 714 |
|
|
2023
Q3 | $10.9M | Buy |
13,200
+5,200
| +65% | +$4.09M | 0.03% | 643 |
|
|
2023
Q2 | $5.75M | Sell |
8,000
-17,900
| -69% | -$13.8M | 0.02% | 877 |
|
|
2023
Q1 | $21.3M | Buy |
25,900
+14,500
| +127% | +$10.9M | 0.05% | 362 |
|
|
2022
Q4 | $8.22M | Sell |
11,400
-11,400
| -50% | -$8.41M | 0.02% | 781 |
|
|
2022
Q3 | $15.7M | Buy |
22,800
+17,100
| +300% | +$10.8M | 0.05% | 423 |
|
|
2022
Q2 | $3.37M | Sell |
5,700
-1,500
| -21% | -$975K | 0.01% | 1272 |
|
|
2022
Q1 | $5.03M | Sell |
7,200
-4,400
| -38% | -$2.78M | 0.02% | 1012 |
|
|
2021
Q4 | $7.33M | Buy |
11,600
+2,500
| +27% | +$1.54M | 0.02% | 765 |
|
|
2021
Q3 | $5.51M | Buy |
9,100
+8,300
| +1,038% | +$5.15M | 0.02% | 871 |
|
|
2021
Q2 | $447K | Sell |
800
-1,700
| -68% | -$861K | ﹤0.01% | 3047 |
|
|
2021
Q1 | $1.18M | Sell |
2,500
-4,500
| -64% | -$2.19M | 0.01% | 1759 |
|
|
2020
Q4 | $3.38M | Sell |
7,000
-1,100
| -14% | -$594K | 0.01% | 989 |
|
|
2020
Q3 | $4.53M | Buy |
8,100
+1,500
| +23% | +$910K | 0.02% | 627 |
|
|
2020
Q2 | $4.12M | Buy |
6,600
+4,500
| +214% | +$2.55M | 0.03% | 644 |
|
|
2020
Q1 | $1.02M | Sell |
2,100
-2,400
| -53% | -$990K | 0.01% | 1286 |
|
|
2019
Q4 | $1.69M | Sell |
4,500
-8,700
| -66% | -$2.93M | 0.01% | 1346 |
|
|
2019
Q3 | $3.66M | Buy |
13,200
+200
| +2% | +$59.2K | 0.03% | 635 |
|
|
2019
Q2 | $4.07M | Buy |
13,000
+3,600
| +38% | +$1.2M | 0.04% | 578 |
|
|
2019
Q1 | $3.86M | Buy |
9,400
+4,000
| +74% | +$1.65M | 0.03% | 642 |
|
|
2018
Q4 | $2.02M | Sell |
5,400
-1,100
| -17% | -$403K | 0.01% | 1072 |
|
|
2018
Q3 | $2.63M | Buy |
6,500
+2,000
| +44% | +$761K | 0.01% | 1078 |
|
|
2018
Q2 | $1.55M | Buy |
4,500
+900
| +25% | +$281K | 0.01% | 1618 |
|
|
2018
Q1 | $1.24M | Sell |
3,600
-5,000
| -58% | -$1.74M | 0.01% | 1712 |
|
|
2017
Q4 | $3.24K | Buy |
8,600
+4,600
| +115% | +$1.86M | 0.02% | 948 |
|
|
2017
Q3 | $1.79K | Buy |
4,000
+2,700
| +208% | +$1.28M | 0.01% | 1375 |
|
|
2017
Q2 | $638 | Buy |
1,300
+900
| +225% | +$394K | ﹤0.01% | 2161 |
|
|
2017
Q1 | $156 | Buy |
400
+300
| +300% | +$111K | ﹤0.01% | 3134 |
|
|
2016
Q4 | $37K | Buy |
+100
| New | +$38K | ﹤0.01% | 3809 |
|
|
2016
Q3 | – | Sell |
-4,900
| Closed | -$1.71M | – | 5322 |
|
|
2016
Q2 | $1.71M | Buy |
4,900
+1,200
| +32% | +$462K | 0.01% | 1127 |
|
|
2016
Q1 | $1.33M | Buy |
3,700
+2,400
| +185% | +$989K | 0.01% | 1152 |
|
|
2015
Q4 | $705K | Buy |
1,300
+800
| +160% | +$433K | 0.01% | 1557 |
|
|
2015
Q3 | $234K | Sell |
500
-600
| -55% | -$322K | ﹤0.01% | 2227 |
|
|
2015
Q2 | $561K | Buy |
1,100
+800
| +267% | +$390K | 0.01% | 1577 |
|
|
2015
Q1 | $135K | Buy |
+300
| New | +$127K | ﹤0.01% | 2479 |
|
Other funds holding REGN
VCM
N
Walleye Trading's REGN Position: Q1 2026 in Review
Walleye Trading reduced its Regeneron Pharmaceuticals (REGN) stake by 19% in Q1 2026, selling an estimated $1.9M and leaving 10,390 shares worth $8.03M. The position accounts for 0.01% of the portfolio, ranked #899.
Walleye Trading first reported a position in REGN in Q3 2013 and has held it in 35 quarters since. The position peaked at $12.5M in Q2 2024. 1,392 funds tracked by Wall St. Rank hold REGN as of Q1 2026.
- Walleye Trading held 10,390 shares of Regeneron Pharmaceuticals worth $8.03M as of Q1 2026.
- Walleye Trading sold 2,482 Regeneron Pharmaceuticals shares in Q1 2026, an estimated $1.9M.
- Regeneron Pharmaceuticals made up 0.01% of Walleye Trading's portfolio in Q1 2026, its #899 holding.
- Walleye Trading first reported a position in Regeneron Pharmaceuticals in Q3 2013 and has held it in 35 quarters since.
- Walleye Trading's Regeneron Pharmaceuticals position peaked at $12.5M in Q2 2024.
- 1,392 funds tracked by Wall St. Rank held Regeneron Pharmaceuticals as of Q1 2026.
Based on Walleye Trading's 13F filing for Q1 2026, filed 11 May 2026.