Robeco Institutional Asset Management
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Robeco Institutional Asset Management’s Regeneron Pharmaceuticals REGN Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$25M Sell
47,708
-64,787
-58% -$34M 0.04% 319
2025
Q1
$71.3M Sell
112,495
-16,813
-13% -$10.7M 0.14% 153
2024
Q4
$92.1M Buy
129,308
+1,130
+0.9% +$805K 0.17% 121
2024
Q3
$135M Buy
128,178
+1,243
+1% +$1.31M 0.27% 85
2024
Q2
$133M Buy
126,935
+10,568
+9% +$11.1M 0.29% 73
2024
Q1
$112M Sell
116,367
-3,924
-3% -$3.78M 0.24% 94
2023
Q4
$106M Buy
120,291
+4,758
+4% +$4.18M 0.26% 94
2023
Q3
$95.1M Sell
115,533
-7,312
-6% -$6.02M 0.25% 96
2023
Q2
$88.3M Sell
122,845
-578
-0.5% -$415K 0.23% 102
2023
Q1
$101M Buy
123,423
+375
+0.3% +$308K 0.28% 95
2022
Q4
$88.8M Buy
123,048
+19,598
+19% +$14.1M 0.26% 99
2022
Q3
$71.3M Buy
103,450
+20,690
+25% +$14.3M 0.23% 102
2022
Q2
$48.9M Buy
82,760
+14,984
+22% +$8.86M 0.15% 144
2022
Q1
$47.3M Buy
67,776
+17,331
+34% +$12.1M 0.11% 204
2021
Q4
$31.9M Sell
50,445
-8,193
-14% -$5.17M 0.07% 275
2021
Q3
$35.5M Buy
58,638
+21,394
+57% +$12.9M 0.08% 265
2021
Q2
$20.8M Sell
37,244
-75,370
-67% -$42.1M 0.05% 355
2021
Q1
$53.3M Sell
112,614
-45,859
-29% -$21.7M 0.13% 188
2020
Q4
$76.6M Sell
158,473
-15,697
-9% -$7.58M 0.2% 125
2020
Q3
$97.5M Buy
174,170
+19,050
+12% +$10.7M 0.3% 88
2020
Q2
$96.7M Buy
155,120
+119,756
+339% +$74.7M 0.33% 75
2020
Q1
$17.3M Buy
35,364
+22,290
+170% +$10.9M 0.07% 312
2019
Q4
$4.91M Sell
13,074
-5,122
-28% -$1.92M 0.02% 602
2019
Q3
$5.05M Sell
18,196
-1,150
-6% -$319K 0.02% 588
2019
Q2
$6.06M Sell
19,346
-1,955
-9% -$612K 0.02% 565
2019
Q1
$8.75M Buy
21,301
+7,931
+59% +$3.26M 0.03% 487
2018
Q4
$4.98M Buy
13,370
+7,806
+140% +$2.91M 0.02% 538
2018
Q3
$2.25M Buy
5,564
+1,000
+22% +$404K 0.01% 672
2018
Q2
$1.58M Sell
4,564
-678
-13% -$234K 0.01% 698
2018
Q1
$1.81M Buy
5,242
+4,204
+405% +$1.45M 0.01% 678
2017
Q4
$391K Hold
1,038
﹤0.01% 790
2017
Q3
$463K Buy
1,038
+12
+1% +$5.35K ﹤0.01% 728
2017
Q2
$504K Hold
1,026
﹤0.01% 743
2017
Q1
$398K Sell
1,026
-55
-5% -$21.3K ﹤0.01% 744
2016
Q4
$396K Sell
1,081
-2,302
-68% -$843K ﹤0.01% 672
2016
Q3
$1.36M Sell
3,383
-2,156
-39% -$867K 0.01% 579
2016
Q2
$1.93M Hold
5,539
0.01% 526
2016
Q1
$2M Sell
5,539
-1,262
-19% -$455K 0.02% 500
2015
Q4
$3.69M Buy
6,801
+1,889
+38% +$1.03M 0.03% 384
2015
Q3
$2.29M Buy
4,912
+1,865
+61% +$868K 0.02% 460
2015
Q2
$1.55M Buy
3,047
+650
+27% +$332K 0.01% 530
2015
Q1
$1.08M Buy
2,397
+334
+16% +$151K 0.01% 550
2014
Q4
$846K Buy
+2,063
New +$846K 0.01% 579
2014
Q3
Sell
-1,266
Closed -$358K 778
2014
Q2
$358K Buy
1,266
+650
+106% +$184K ﹤0.01% 634
2014
Q1
$185K Buy
616
+161
+35% +$48.4K ﹤0.01% 618
2013
Q4
$125K Hold
455
﹤0.01% 547
2013
Q3
$142K Hold
455
﹤0.01% 555
2013
Q2
$102K Buy
+455
New +$102K ﹤0.01% 553