T. Rowe Price Associates
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T. Rowe Price Associates’s Regeneron Pharmaceuticals REGN Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$402M Sell
766,444
-1,408,582
-65% -$740M 0.05% 300
2025
Q1
$1.38B Buy
2,175,026
+89,579
+4% +$56.8M 0.17% 118
2024
Q4
$1.49B Buy
2,085,447
+810,144
+64% +$577M 0.17% 111
2024
Q3
$1.34B Buy
1,275,303
+342,429
+37% +$360M 0.15% 130
2024
Q2
$980M Buy
932,874
+30,261
+3% +$31.8M 0.12% 167
2024
Q1
$869M Buy
902,613
+184,561
+26% +$178M 0.11% 180
2023
Q4
$631M Sell
718,052
-1,499,613
-68% -$1.32B 0.08% 222
2023
Q3
$1.83B Sell
2,217,665
-34,598
-2% -$28.5M 0.27% 74
2023
Q2
$1.62B Buy
2,252,263
+74,031
+3% +$53.2M 0.23% 82
2023
Q1
$1.79B Buy
2,178,232
+454,510
+26% +$373M 0.27% 76
2022
Q4
$1.24B Sell
1,723,722
-26,839
-2% -$19.4M 0.2% 112
2022
Q3
$1.21B Buy
1,750,561
+56,253
+3% +$38.8M 0.2% 103
2022
Q2
$1B Buy
1,694,308
+813,967
+92% +$481M 0.13% 171
2022
Q1
$615M Sell
880,341
-32,914
-4% -$23M 0.06% 293
2021
Q4
$577M Buy
913,255
+103,415
+13% +$65.3M 0.05% 330
2021
Q3
$490M Sell
809,840
-15,004
-2% -$9.08M 0.05% 350
2021
Q2
$461M Sell
824,844
-37,899
-4% -$21.2M 0.04% 355
2021
Q1
$408M Sell
862,743
-5,256
-0.6% -$2.49M 0.04% 374
2020
Q4
$419M Sell
867,999
-45,993
-5% -$22.2M 0.04% 363
2020
Q3
$512M Sell
913,992
-209,394
-19% -$117M 0.06% 297
2020
Q2
$701M Buy
1,123,386
+116,053
+12% +$72.4M 0.09% 236
2020
Q1
$492M Buy
1,007,333
+216,210
+27% +$106M 0.08% 260
2019
Q4
$297M Sell
791,123
-75,877
-9% -$28.5M 0.04% 396
2019
Q3
$241M Buy
867,000
+62,598
+8% +$17.4M 0.03% 413
2019
Q2
$252M Sell
804,402
-952,724
-54% -$298M 0.04% 413
2019
Q1
$722M Buy
1,757,126
+1,108,188
+171% +$455M 0.11% 202
2018
Q4
$242M Buy
648,938
+60,983
+10% +$22.8M 0.04% 384
2018
Q3
$238M Sell
587,955
-115,930
-16% -$46.8M 0.03% 442
2018
Q2
$243M Buy
703,885
+14,130
+2% +$4.87M 0.04% 424
2018
Q1
$238M Sell
689,755
-20,311
-3% -$6.99M 0.04% 415
2017
Q4
$267M Sell
710,066
-61,664
-8% -$23.2M 0.04% 395
2017
Q3
$345M Sell
771,730
-47,176
-6% -$21.1M 0.06% 335
2017
Q2
$402M Sell
818,906
-292,969
-26% -$144M 0.07% 289
2017
Q1
$431M Buy
1,111,875
+32,085
+3% +$12.4M 0.08% 264
2016
Q4
$396M Sell
1,079,790
-117,674
-10% -$43.2M 0.08% 276
2016
Q3
$481M Sell
1,197,464
-618,529
-34% -$249M 0.1% 240
2016
Q2
$634M Sell
1,815,993
-2,203,784
-55% -$770M 0.13% 179
2016
Q1
$1.45B Sell
4,019,777
-718,516
-15% -$259M 0.31% 76
2015
Q4
$2.57B Sell
4,738,293
-59,862
-1% -$32.5M 0.54% 36
2015
Q3
$2.23B Buy
4,798,155
+551,370
+13% +$256M 0.5% 39
2015
Q2
$2.17B Buy
4,246,785
+370,284
+10% +$189M 0.45% 44
2015
Q1
$1.75B Sell
3,876,501
-63,353
-2% -$28.6M 0.36% 62
2014
Q4
$1.62B Buy
3,939,854
+680,192
+21% +$279M 0.34% 64
2014
Q3
$1.18B Buy
3,259,662
+465,361
+17% +$168M 0.26% 96
2014
Q2
$789M Sell
2,794,301
-1,308,589
-32% -$370M 0.17% 150
2014
Q1
$1.23B Sell
4,102,890
-1,894,464
-32% -$569M 0.28% 91
2013
Q4
$1.65B Buy
5,997,354
+468
+0% +$129K 0.38% 61
2013
Q3
$1.88B Sell
5,996,886
-330,003
-5% -$103M 0.47% 44
2013
Q2
$1.42B Buy
+6,326,889
New +$1.42B 0.38% 61