Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionCapital International Ltd /ca/
Latest Disclosed Ownership13,610 shares
Latest Disclosed Value $ 10,515,630
Capital International Ltd /ca/ ownership in REGN / Regeneron Pharmaceuticals, Inc.

On May 13, 2026 - Capital International Ltd /ca/ filed a 13F-HR form disclosing ownership of 13,610 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $10,515,630 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 13,610 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 0.00% 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)
2026-05-13 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 13,610 0 0.00 10,516 0.10 0.3897
2026-02-11 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 13,610 -14,302 -51.24 10,505 -33.06 0.3702
2025-11-13 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 27,912 -5,999 -17.69 15,694 -11.85 0.5679
2025-08-13 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 33,911 -9,241 -21.41 17,803 -34.95 0.6820
2025-05-12 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 43,152 2,184 5.33 27,368 -6.22 1.1932
2025-02-13 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 40,968 5,197 14.53 29,183 -22.39 1.1903
2024-11-13 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 35,771 997 2.87 37,604 2.89 1.6206
2024-08-13 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 34,774 3,741 12.05 36,549 22.37 1.6854
2024-05-14 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 31,033 7,007 29.16 29,869 41.55 1.4287
2024-02-13 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 24,026 464 1.97 21,102 8.82 1.0821
2023-11-13 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 23,562 -4,806 -16.94 19,391 -4.87 1.1152
2023-08-11 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 28,368 -2,919 -9.33 20,384 -20.71 1.1423
2023-05-15 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 31,287 -604 -1.89 25,708 11.73 1.5415
2023-02-14 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 31,891 -598 -1.84 23,009 2.81 1.5858
2022-11-14 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 32,489 3,446 11.87 22,381 30.36 1.5602
2022-08-15 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 29,043 1,387 5.02 17,168 -11.12 1.2920
2022-05-19 2022-03-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 27,656 3,171 12.95 19,316 24.92 1.1006
2022-05-16 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 27,656 3,171 19,316 1.1114
2022-02-14 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 24,485 104 0.43 15,463 4.80 0.7854
2021-11-15 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 24,381 -288 -1.17 14,755 7.08 0.8033
2021-08-16 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 24,669 -1,139 -4.41 13,779 12.84 0.7591
2021-05-14 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 25,808 -2,616 -9.20 12,211 -11.08 0.7370
2021-02-16 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 28,424 319 1.14 13,732 -12.72 0.8017
2020-11-13 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 28,105 4,803 20.61 15,733 8.26 1.0662
2020-08-14 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 23,302 -264 -1.12 14,532 26.29 1.3602
2020-05-15 2020-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 23,566 23,566 11,507 1.2908
2018-11-14 2018-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 0 -8,223 -100.00 0 -100.00
2018-08-14 2018-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 8,223 -99 -1.19 2,837 -1.01 0.4961
2018-05-15 2018-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 8,322 8,322 2,866 0.5134
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.