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 |
-18,000
| Closed | -$9.45M | – | 1783 |
|
|
2025
Q2 | $9.45M | Buy |
18,000
+13,900
| +339% | +$7.76M | 0.02% | 789 |
|
|
2025
Q1 | $2.6M | Sell |
4,100
-8,500
| -67% | -$5.85M | ﹤0.01% | 1084 |
|
|
2024
Q4 | $8.98M | Sell |
12,600
-1,800
| -13% | -$1.51M | 0.02% | 730 |
|
|
2024
Q3 | $15.1M | Buy |
+14,400
| New | +$16M | 0.03% | 503 |
|
|
2024
Q1 | – | Sell |
-6,200
| Closed | -$5.45M | – | 1557 |
|
|
2023
Q4 | $5.45M | Buy |
+6,200
| New | +$5.11M | 0.01% | 849 |
|
|
2023
Q2 | – | Sell |
-3,400
| Closed | -$2.79M | – | 1473 |
|
|
2023
Q1 | $2.79M | Buy |
+3,400
| New | +$2.56M | 0.01% | 851 |
|
|
2022
Q1 | – | Sell |
-7,000
| Closed | -$4.42M | – | 1848 |
|
|
2021
Q4 | $4.42M | Buy |
+7,000
| New | +$4.3M | 0.01% | 881 |
|
|
2021
Q1 | – | Sell |
-10,000
| Closed | -$4.83M | – | 1571 |
|
|
2020
Q4 | $4.83M | Buy |
+10,000
| New | +$5.4M | 0.02% | 638 |
|
|
2018
Q2 | – | Sell |
-33,800
| Closed | -$11.6M | – | 1320 |
|
|
2018
Q1 | $11.6M | Sell |
33,800
-123,400
| -78% | -$42.9M | 0.09% | 180 |
|
|
2017
Q4 | $59.1M | Buy |
157,200
+82,300
| +110% | +$33.3M | 0.44% | 37 |
|
|
2017
Q3 | $33.5M | Sell |
74,900
-16,000
| -18% | -$7.61M | 0.27% | 71 |
|
|
2017
Q2 | $44.6M | Sell |
90,900
-50,000
| -35% | -$21.9M | 0.35% | 54 |
|
|
2017
Q1 | $54.6M | Buy |
140,900
+118,600
| +532% | +$44M | 0.5% | 39 |
|
|
2016
Q4 | $8.19M | Sell |
22,300
-32,500
| -59% | -$12.4M | 0.08% | 290 |
|
|
2016
Q3 | $22M | Buy |
54,800
+8,800
| +19% | +$3.53M | 0.28% | 63 |
|
|
2016
Q2 | $16.1M | Buy |
46,000
+30,200
| +191% | +$11.6M | 0.25% | 76 |
|
|
2016
Q1 | $5.7M | Buy |
15,800
+2,800
| +22% | +$1.15M | 0.11% | 198 |
|
|
2015
Q4 | $7.06M | Buy |
13,000
+300
| +2% | +$163K | 0.14% | 146 |
|
|
2015
Q3 | $5.91M | Buy |
12,700
+6,800
| +115% | +$3.65M | 0.15% | 109 |
|
|
2015
Q2 | $3.01M | Hold |
5,900
| – | – | 0.07% | 277 |
|
|
2015
Q1 | $2.66M | Buy |
5,900
+4,800
| +436% | +$2.03M | 0.07% | 311 |
|
|
2014
Q4 | $451K | Sell |
1,100
-10,900
| -91% | -$4.29M | 0.01% | 788 |
|
|
2014
Q3 | $4.33M | Sell |
12,000
-4,100
| -25% | -$1.37M | 0.12% | 200 |
|
|
2014
Q2 | $4.55M | Buy |
16,100
+1,400
| +10% | +$415K | 0.1% | 212 |
|
|
2014
Q1 | $4.41M | Buy |
+14,700
| New | +$4.53M | 0.09% | 262 |
|
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.