Twin Tree Management’s Regeneron Pharmaceuticals REGN Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q3 | – | Sell |
-3,900
| Closed | -$2.05M | – | 1785 |
|
|
2025
Q2 | $2.05M | Sell |
3,900
-29,500
| -88% | -$16.5M | ﹤0.01% | 1252 |
|
|
2025
Q1 | $21.2M | Buy |
+33,400
| New | +$23M | 0.04% | 415 |
|
|
2024
Q4 | – | Sell |
-4,300
| Closed | -$4.52M | – | 1866 |
|
|
2024
Q3 | $4.52M | Sell |
4,300
-13,200
| -75% | -$14.7M | 0.01% | 929 |
|
|
2024
Q2 | $18.4M | Buy |
17,500
+500
| +3% | +$485K | 0.04% | 393 |
|
|
2024
Q1 | $16.4M | Sell |
17,000
-5,600
| -25% | -$5.32M | 0.04% | 458 |
|
|
2023
Q4 | $19.8M | Buy |
+22,600
| New | +$18.6M | 0.04% | 477 |
|
|
2023
Q3 | – | Sell |
-4,300
| Closed | -$3.09M | – | 1479 |
|
|
2023
Q2 | $3.09M | Sell |
4,300
-61,000
| -93% | -$47M | ﹤0.01% | 863 |
|
|
2023
Q1 | $53.7M | Buy |
65,300
+58,400
| +846% | +$44M | 0.1% | 175 |
|
|
2022
Q4 | $4.98M | Sell |
6,900
-5,100
| -43% | -$3.76M | 0.01% | 746 |
|
|
2022
Q3 | $8.27M | Buy |
+12,000
| New | +$7.55M | 0.02% | 619 |
|
|
2020
Q2 | – | Sell |
-2,700
| Closed | -$1.32M | – | 1662 |
|
|
2020
Q1 | $1.32M | Buy |
+2,700
| New | +$1.11M | 0.01% | 805 |
|
|
2019
Q2 | – | Sell |
-9,600
| Closed | -$3.94M | – | 1504 |
|
|
2019
Q1 | $3.94M | Buy |
9,600
+8,400
| +700% | +$3.46M | 0.02% | 500 |
|
|
2018
Q4 | $448K | Sell |
1,200
-20,400
| -94% | -$7.47M | ﹤0.01% | 985 |
|
|
2018
Q3 | $8.73M | Sell |
21,600
-200
| -0.9% | -$76.1K | 0.06% | 281 |
|
|
2018
Q2 | $7.52M | Buy |
+21,800
| New | +$6.82M | 0.05% | 327 |
|
|
2018
Q1 | – | Sell |
-11,200
| Closed | -$4.21M | – | 1275 |
|
|
2017
Q4 | $4.21M | Hold |
11,200
| – | – | 0.03% | 433 |
|
|
2017
Q3 | $5.01M | Sell |
11,200
-42,300
| -79% | -$20.1M | 0.04% | 374 |
|
|
2017
Q2 | $26.3M | Buy |
53,500
+18,400
| +52% | +$8.05M | 0.21% | 103 |
|
|
2017
Q1 | $13.6M | Buy |
35,100
+19,500
| +125% | +$7.23M | 0.12% | 163 |
|
|
2016
Q4 | $5.73M | Sell |
15,600
-30,100
| -66% | -$11.4M | 0.06% | 363 |
|
|
2016
Q3 | $18.4M | Buy |
45,700
+15,800
| +53% | +$6.34M | 0.23% | 83 |
|
|
2016
Q2 | $10.4M | Buy |
29,900
+28,100
| +1,561% | +$10.8M | 0.16% | 135 |
|
|
2016
Q1 | $649K | Sell |
1,800
-8,300
| -82% | -$3.42M | 0.01% | 733 |
|
|
2015
Q4 | $5.48M | Buy |
10,100
+4,000
| +66% | +$2.17M | 0.11% | 187 |
|
|
2015
Q3 | $2.84M | Buy |
6,100
+5,400
| +771% | +$2.9M | 0.07% | 261 |
|
|
2015
Q2 | $357K | Sell |
700
-500
| -42% | -$244K | 0.01% | 963 |
|
|
2015
Q1 | $542K | Sell |
1,200
-4,800
| -80% | -$2.03M | 0.01% | 776 |
|
|
2014
Q4 | $2.46M | Sell |
6,000
-7,000
| -54% | -$2.75M | 0.07% | 320 |
|
|
2014
Q3 | $4.69M | Buy |
13,000
+5,200
| +67% | +$1.74M | 0.12% | 178 |
|
|
2014
Q2 | $2.2M | Hold |
7,800
| – | – | 0.05% | 382 |
|
|
2014
Q1 | $2.34M | Buy |
+7,800
| New | +$2.4M | 0.05% | 413 |
|
Other funds holding REGN
Twin Tree Management's REGN Position: Q3 2025 in Review
Twin Tree Management sold out of Regeneron Pharmaceuticals (REGN) in Q3 2025, closing a stake of 4,891 shares — an estimated $2.57M sold.
Twin Tree Management first reported a position in REGN in Q2 2013 and held it in 31 quarters. The position peaked at $28M in Q1 2023. 1,244 funds tracked by Wall St. Rank hold REGN as of Q3 2025.
- Twin Tree Management reported no remaining Regeneron Pharmaceuticals position as of Q3 2025 after selling out during the quarter.
- Twin Tree Management sold 4,891 Regeneron Pharmaceuticals shares in Q3 2025, an estimated $2.57M.
- Twin Tree Management first reported a position in Regeneron Pharmaceuticals in Q2 2013 and held it in 31 quarters.
- Twin Tree Management's Regeneron Pharmaceuticals position peaked at $28M in Q1 2023.
- 1,244 funds tracked by Wall St. Rank held Regeneron Pharmaceuticals as of Q3 2025.
Based on Twin Tree Management's 13F filing for Q3 2025, filed 13 Nov 2025.