Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionInvesco Ltd.
Latest Disclosed Ownership1,724,478 shares
Latest Disclosed Value $ 1,332,401,060
Invesco Ltd. reports 8.38% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 1,724,478 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $1,332,401,060 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 1,591,105 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 8.38% 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)
2026-05-12 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,724,478 133,373 8.38 1,332,401 8.49 0.2040
2026-02-19 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,591,105 106,632 7.18 1,228,127 47.14 0.1883
2025-11-13 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,484,473 408,649 37.98 834,675 47.78 0.1315
2025-08-13 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,075,824 225,078 26.46 564,808 4.68 0.0961
2025-05-12 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 850,746 -13,503 -1.56 539,569 -12.36 0.1022
2025-02-13 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 864,249 -296,924 -25.57 615,631 -49.57 0.1138
2024-11-12 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,161,173 244,753 26.71 1,220,672 26.73 0.2357
2024-08-13 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 916,420 -69,648 -7.06 963,185 1.49 0.2037
2024-05-14 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 986,068 221,061 28.90 949,081 41.25 0.2039
2024-02-13 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 765,007 21,659 2.91 671,898 9.83 0.1599
2023-11-13 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 743,348 -165,714 -18.23 611,746 -6.35 0.1648
2023-08-11 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 909,062 24,307 2.75 653,197 -10.15 0.1712
2023-05-12 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 884,755 191,892 27.70 726,977 45.43 0.2028
2023-02-13 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 692,863 51,541 8.04 499,894 13.15 0.1464
2022-11-14 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 641,322 13,135 2.09 441,787 18.97 0.1422
2022-08-15 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 628,187 25,256 4.19 371,340 -11.82 0.1125
2022-05-16 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 602,931 14,720 2.50 421,097 13.36 0.1074
2022-02-14 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 588,211 103,773 21.42 371,469 26.71 0.0895
2021-11-15 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 484,438 25,958 5.66 293,172 14.48 0.0743
2021-08-17 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 458,480 -10,864 -2.31 256,079 15.32 0.0630
2021-05-17 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 469,344 70,883 17.79 222,066 15.36 0.0593
2021-02-16 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 398,461 108,214 37.28 192,501 18.48 0.0560
2020-11-16 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 290,247 31,119 12.01 162,474 0.54 0.0549
2020-08-14 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 259,128 -43,407 -14.35 161,605 9.40 0.0578
2020-05-15 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 302,535 -6,820 -2.20 147,724 27.18 0.0622
2020-02-14 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 309,355 -1,002,899 -76.43 116,157 -68.09 0.0361
2019-11-14 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,312,254 -32,019 -2.38 364,020 -13.48 0.0952
2019-08-14 2019-06-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 1,344,273 46,055 3.55 420,759 -21.07 0.1083
2019-08-14 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,344,273 -1,292,565 420,759
2019-05-15 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,298,218 66,786 5.42 533,073 15.90 0.1798
2019-02-14 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,231,432 19,546 1.61 459,940 -6.07 0.1761
2018-11-14 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,211,886 67,071 5.86 489,650 23.98 0.1541
2018-08-14 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,144,815 108,565 10.48 394,949 10.68 0.1307
2018-05-15 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,036,250 73,355 7.62 356,843 -1.43 0.1334
2018-02-14 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 962,895 65,519 7.30 362,010 -9.78 0.1305
2017-11-14 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 897,376 -33,253 -3.57 401,234 -12.22 0.1482
2017-08-14 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 930,629 244 0.03 457,071 26.78 0.1422
2017-05-15 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 930,385 42,057 4.73 360,535 10.56 0.1184
2017-02-14 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 888,328 41,562 4.91 326,095 -4.21 0.1096
2016-11-14 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 846,766 22,483 2.73 340,417 18.26 0.1170
2016-08-15 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 824,283 -179,634 -17.89 287,864 -20.45 0.1057
2016-05-16 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,003,917 -282,066 -21.93 361,852 -48.17 0.1471
2016-02-16 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,285,983 234,111 22.26 698,121 42.69 0.2786
2015-11-16 2015-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,051,872 565 0.05 489,269 -8.77 0.2076
2015-08-14 2015-06-30 13F REGENERON PHARMACEUTICALS COMMON 75886F107 1,051,307 -19,322 -1.80 536,302 10.95 0.2105
2015-05-15 2015-03-31 13F REGENERON PHARMACEUTICALS COMMON 75886F107 1,070,629 -212,853 -16.58 483,367 -8.20 0.1870
2015-02-13 2014-12-31 13F REGENERON PHARMACEUTICALS COMMON 75886F107 1,283,482 134,855 11.74 526,551 27.15 0.2034
2014-11-14 2014-09-30 13F REGENERON PHARMACEUTICALS COMMON 75886F107 1,148,627 8,748 0.77 414,104 28.61 0.1654
2014-08-14 2014-06-30 13F REGENERON PHARMACEUTICALS COMMON 75886F107 1,139,879 -184,552 -13.93 321,982 -19.04 0.1267
2014-05-15 2014-03-31 13F REGENERON PHARMACEUTICALS COMMON 75886F107 1,324,431 81,757 6.58 397,700 16.27 0.1613
2014-02-13 2013-12-31 13F REGENERON PHARMACEUTICALS COMMON 75886F107 1,242,674 18,862 1.54 342,035 -10.67 0.1358
2013-11-13 2013-09-30 13F REGENERON PHARMACEUTICALS COMMON 75886F107 1,223,812 166,914 15.79 382,892 61.10 0.1664
2013-08-14 2013-06-30 13F REGENERON PHARMACEUTICALS COMMON 75886F107 1,056,898 1,056,898 237,675 0.1108
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.