Twin Tree Management
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Twin Tree Management’s Regeneron Pharmaceuticals REGN Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$2.57M Buy
+4,891
New +$2.57M ﹤0.01% 268
2025
Q1
Hold
0
866
2024
Q4
Sell
-155
Closed -$163K 833
2024
Q3
$163K Sell
155
-8,887
-98% -$9.34M ﹤0.01% 424
2024
Q2
$9.5M Sell
9,042
-1,537
-15% -$1.62M 0.02% 115
2024
Q1
$10.2M Sell
10,579
-3,399
-24% -$3.27M 0.02% 135
2023
Q4
$12.3M Buy
+13,978
New +$12.3M 0.02% 151
2023
Q3
Sell
-2,532
Closed -$1.82M 685
2023
Q2
$1.82M Sell
2,532
-31,504
-93% -$22.6M ﹤0.01% 307
2023
Q1
$28M Buy
34,036
+15,252
+81% +$12.5M 0.05% 25
2022
Q4
$13.6M Sell
18,784
-18,850
-50% -$13.6M 0.03% 79
2022
Q3
$25.9M Buy
+37,634
New +$25.9M 0.05% 34
2022
Q1
Sell
-845
Closed -$534K 854
2021
Q4
$534K Sell
845
-28,632
-97% -$18.1M ﹤0.01% 440
2021
Q3
$17.8M Buy
29,477
+1,415
+5% +$856K 0.04% 50
2021
Q2
$15.7M Buy
28,062
+23,178
+475% +$12.9M 0.04% 60
2021
Q1
$2.31M Buy
+4,884
New +$2.31M 0.01% 249
2020
Q4
Sell
-1,757
Closed -$984K 725
2020
Q3
$984K Sell
1,757
-3,587
-67% -$2.01M ﹤0.01% 276
2020
Q2
$3.33M Sell
5,344
-4,352
-45% -$2.71M 0.01% 179
2020
Q1
$4.73M Buy
+9,696
New +$4.73M 0.02% 104
2019
Q2
Sell
-4,967
Closed -$2.04M 831
2019
Q1
$2.04M Buy
+4,967
New +$2.04M 0.01% 193
2018
Q4
Hold
0
754
2018
Q3
Sell
-23,082
Closed -$7.96M 633
2018
Q2
$7.96M Buy
+23,082
New +$7.96M 0.05% 57
2018
Q1
Sell
-7,879
Closed -$2.96M 586
2017
Q4
$2.96M Buy
7,879
+7,482
+1,885% +$2.81M 0.02% 112
2017
Q3
$178K Buy
+397
New +$178K ﹤0.01% 261
2017
Q2
Sell
-28,945
Closed -$11.2M 519
2017
Q1
$11.2M Buy
28,945
+24,442
+543% +$9.47M 0.1% 11
2016
Q4
$1.65M Sell
4,503
-10,029
-69% -$3.68M 0.02% 174
2016
Q3
$5.84M Buy
14,532
+9,751
+204% +$3.92M 0.07% 21
2016
Q2
$1.67M Buy
4,781
+1,397
+41% +$488K 0.03% 97
2016
Q1
$1.22M Buy
3,384
+2,237
+195% +$806K 0.02% 98
2015
Q4
$623K Buy
1,147
+351
+44% +$191K 0.01% 196
2015
Q3
$370K Buy
796
+702
+747% +$326K 0.01% 222
2015
Q2
$48K Sell
94
-655
-87% -$334K ﹤0.01% 406
2015
Q1
$338K Buy
+749
New +$338K 0.01% 224
2014
Q4
Hold
0
455
2014
Q3
Sell
-3,186
Closed -$900K 424
2014
Q2
$900K Buy
+3,186
New +$900K 0.02% 99
2014
Q1
Hold
0
369
2013
Q3
Sell
-1,201
Closed -$270K 311
2013
Q2
$270K Buy
+1,201
New +$270K 0.01% 127