Calamos Advisors
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Calamos Advisors’s Regeneron Pharmaceuticals REGN Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$6.44M Hold
12,272
0.03% 494
2025
Q1
$7.78M Sell
12,272
-10,386
-46% -$6.59M 0.03% 423
2024
Q4
$16.1M Buy
22,658
+10,523
+87% +$7.5M 0.07% 284
2024
Q3
$12.8M Sell
12,135
-298
-2% -$313K 0.06% 342
2024
Q2
$13.1M Sell
12,433
-454
-4% -$477K 0.06% 333
2024
Q1
$12.4M Sell
12,887
-324
-2% -$312K 0.06% 340
2023
Q4
$11.6M Sell
13,211
-173
-1% -$152K 0.06% 343
2023
Q3
$11M Hold
13,384
0.06% 355
2023
Q2
$9.62M Hold
13,384
0.05% 415
2023
Q1
$11M Sell
13,384
-1,687
-11% -$1.39M 0.05% 398
2022
Q4
$10.9M Sell
15,071
-2,661
-15% -$1.92M 0.05% 429
2022
Q3
$12.2M Sell
17,732
-18
-0.1% -$12.4K 0.06% 393
2022
Q2
$10.5M Buy
17,750
+493
+3% +$291K 0.05% 450
2022
Q1
$12.1M Buy
17,257
+2,315
+15% +$1.62M 0.05% 456
2021
Q4
$9.44M Buy
14,942
+578
+4% +$365K 0.04% 492
2021
Q3
$8.69M Buy
14,364
+1,268
+10% +$767K 0.04% 440
2021
Q2
$7.32M Buy
13,096
+2,979
+29% +$1.66M 0.03% 457
2021
Q1
$4.79M Buy
10,117
+313
+3% +$148K 0.03% 522
2020
Q4
$4.74M Sell
9,804
-425
-4% -$205K 0.03% 483
2020
Q3
$5.73M Sell
10,229
-911
-8% -$510K 0.04% 410
2020
Q2
$6.95M Sell
11,140
-712
-6% -$444K 0.05% 356
2020
Q1
$5.79M Sell
11,852
-979
-8% -$478K 0.05% 372
2019
Q4
$4.82M Sell
12,831
-211
-2% -$79.2K 0.02% 496
2019
Q3
$3.62M Buy
13,042
+1,131
+9% +$314K 0.02% 523
2019
Q2
$3.73M Buy
11,911
+248
+2% +$77.6K 0.02% 533
2019
Q1
$4.79M Buy
11,663
+459
+4% +$188K 0.03% 440
2018
Q4
$4.19M Buy
11,204
+1,678
+18% +$627K 0.03% 450
2018
Q3
$3.85M Sell
9,526
-5,122
-35% -$2.07M 0.02% 474
2018
Q2
$5.05M Sell
14,648
-2,535
-15% -$874K 0.03% 396
2018
Q1
$5.92M Sell
17,183
-103,083
-86% -$35.5M 0.04% 374
2017
Q4
$45.2M Buy
120,266
+51,044
+74% +$19.2M 0.23% 87
2017
Q3
$31M Buy
69,222
+57,538
+492% +$25.7M 0.24% 129
2017
Q2
$5.74M Buy
11,684
+3,858
+49% +$1.89M 0.04% 334
2017
Q1
$3.03M Buy
7,826
+3,811
+95% +$1.48M 0.02% 429
2016
Q4
$1.47M Sell
4,015
-52
-1% -$19.1K 0.01% 534
2016
Q3
$1.64M Buy
4,067
+4
+0.1% +$1.61K 0.01% 479
2016
Q2
$1.42M Buy
4,063
+1
+0% +$349 0.01% 494
2016
Q1
$1.46M Buy
4,062
+253
+7% +$91.2K 0.01% 493
2015
Q4
$2.07M Hold
3,809
0.01% 461
2015
Q3
$1.77M Buy
3,809
+1
+0% +$465 0.01% 476
2015
Q2
$1.94M Sell
3,808
-23,115
-86% -$11.8M 0.01% 481
2015
Q1
$12.2M Sell
26,923
-167,202
-86% -$75.5M 0.08% 242
2014
Q4
$79.6M Sell
194,125
-109,637
-36% -$45M 0.53% 54
2014
Q3
$110M Sell
303,762
-20,395
-6% -$7.35M 0.73% 30
2014
Q2
$91.6M Sell
324,157
-50,040
-13% -$14.1M 0.58% 44
2014
Q1
$112M Buy
374,197
+40,069
+12% +$12M 0.72% 36
2013
Q4
$92M Sell
334,128
-93
-0% -$25.6K 0.58% 43
2013
Q3
$105M Buy
334,221
+11,695
+4% +$3.66M 0.66% 40
2013
Q2
$72.5M Buy
+322,526
New +$72.5M 0.47% 58