Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionNorinchukin Bank, The
Latest Disclosed Ownership9,979 shares
Latest Disclosed Value $ 7,710,175
Norinchukin Bank, The reports 3.60% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 15, 2026 - Norinchukin Bank, The filed a 13F-HR form disclosing ownership of 9,979 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $7,710,175 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 9,632 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 3.60% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,979 347 3.60 7,710 3.71 0.0788
2026-02-17 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,632 821 9.32 7,435 50.06 0.0867
2025-11-14 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,811 -343 -3.75 4,954 3.10 0.0665
2025-08-14 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,154 776 9.26 4,806 -9.56 0.0715
2025-05-14 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,378 2,568 44.20 5,314 28.40 0.0977
2025-02-13 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,810 475 8.90 4,139 -26.21 0.0875
2024-11-14 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,335 732 15.90 5,608 15.94 0.1324
2024-08-14 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,603 32 0.70 4,838 9.96 0.1381
2024-05-14 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,571 -136 -2.89 4,400 6.41 0.1317
2024-02-13 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,707 -668 -12.43 4,134 -6.53 0.0969
2023-11-13 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,375 -5,610 -51.07 4,423 -43.96 0.1039
2023-08-14 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,985 2,568 30.51 7,893 14.14 0.1330
2023-05-12 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,417 221 2.70 6,916 16.95 0.1362
2023-02-13 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,196 -1,858 -18.48 5,913 -14.63 0.1274
2022-11-14 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,054 977 10.76 6,926 29.07 0.1410
2022-08-10 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,077 -1,959 -17.75 5,366 -30.38 0.1050
2022-05-12 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 11,036 1,065 10.68 7,708 22.41 0.1027
2022-02-10 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,971 -531 -5.06 6,297 -0.93 0.0794
2021-11-09 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,502 616 6.23 6,356 15.10 0.0883
2021-08-11 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,886 130 1.33 5,522 19.63 0.0798
2021-05-12 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,756 465 5.00 4,616 2.83 0.0636
2021-02-12 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,291 -11 -0.12 4,489 -13.79 0.0639
2020-11-12 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,302 609 7.01 5,207 -3.95 0.0823
2020-08-12 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,693 1,643 23.30 5,421 57.50 0.0925
2020-05-13 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,050 -3,853 -35.34 3,442 -15.93 0.0672
2020-02-12 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 10,903 -875 -7.43 4,094 25.31 0.0535
2019-11-12 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 11,778 418 3.68 3,267 -8.13 0.0461
2019-08-09 2019-06-30 13F REGENERONPHARMACEUTICALS COM 75886F107 11,360 -3,821 -25.17 3,556 -42.96 0.0546
2019-05-10 2019-03-31 13F REGENERONPHARMACEUTICALS COM 75886F107 15,181 701 4.84 6,234 15.27 0.0795
2019-02-08 2018-12-31 13F REGENERONPHARMACEUTICALS COM 75886F107 14,480 4,514 45.29 5,408 34.29 0.0757
2018-11-08 2018-09-30 13F REGENERONPHARMACEUTICALS COM 75886F107 9,966 1,202 13.72 4,027 33.21 0.0546
2018-08-10 2018-06-30 13F REGENERONPHARMACEUTICALS COM 75886F107 8,764 1,688 23.86 3,023 24.05 0.0451
2018-05-10 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,076 916 14.87 2,437 5.22 0.0408
2018-02-09 2017-12-31 13F REGENERONPHARMACEUTICALS COM 75886F107 6,160 441 7.71 2,316 -9.43 0.0405
2017-11-08 2017-09-30 13F REGENERONPHARMACEUTICALS COM 75886F107 5,719 431 8.15 2,557 -1.54 0.0495
2017-08-10 2017-06-30 13F REGENERONPHARMACEUTICALS COM 75886F107 5,288 346 7.00 2,597 35.61 0.0534
2017-05-08 2017-03-31 13F REGENERONPHARMACEUTICALS COM 75886F107 4,942 355 7.74 1,915 13.72 0.0413
2017-02-08 2016-12-31 13F REGENERONPHARMACEUTICALS COM 75886F107 4,587 545 13.48 1,684 3.63 0.0392
2016-11-08 2016-09-30 13F REGENERONPHARMACEUTICALS COM 75886F107 4,042 -49 -1.20 1,625 13.72 0.0390
2016-08-08 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,091 84 2.10 1,429 -1.04 0.0348
2016-05-11 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,007 380 10.48 1,444 -26.66 0.0350
2016-02-09 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,627 -797 -18.02 1,969 -4.32 0.0499
2015-11-09 2015-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,424 156 3.66 2,058 -5.47 0.0537
2015-07-31 2015-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,268 -105 -2.40 2,177 10.28 0.0555
2015-05-08 2015-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,373 0 0.00 1,974 10.03 0.0478
2015-02-10 2014-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,373 1,411 47.64 1,794 67.98 0.0438
2014-10-31 2014-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,962 -11 -0.37 1,068 27.14 0.0305
2014-07-31 2014-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,973 -285 -8.75 840 -14.11 0.0247
2014-05-13 2014-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,258 324 11.04 978 21.04 0.0277
2014-02-14 2013-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,934 4 0.14 808 -11.89 0.0217
2013-11-14 2013-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,930 284 10.73 917 54.12 0.0262
2013-08-13 2013-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,646 2,646 595 0.0180
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.