Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionVontobel Holding Ltd.
Latest Disclosed Ownership28,794 shares
Latest Disclosed Value $ 22,247,396
Vontobel Holding Ltd. reports 112.61% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 8, 2026 - Vontobel Holding Ltd. filed a 13F-HR form disclosing ownership of 28,794 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $22,247,396 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 13,543 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 112.61% 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)
2026-05-08 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 28,794 15,251 112.61 22,247 112.83 0.0205
2026-02-13 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 13,543 3,180 30.69 10,453 79.42 0.0329
2025-10-15 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,363 2,861 38.14 5,827 47.94 0.0176
2025-07-23 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,502 163 2.22 3,939 -15.38 0.0125
2025-04-28 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,339 881 13.64 4,655 1.17 0.0170
2025-01-30 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,458 2,322 56.14 4,600 5.82 0.0157
2024-10-16 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,136 -267 -6.06 4,348 -6.05 0.0140
2024-08-13 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,403 683 18.36 4,628 29.25 0.0150
2024-05-10 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,720 -1,095 -22.74 3,580 -15.33 0.0286
2024-06-04 2023-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 4,815 -3,855 -44.46 4,229 -40.74 0.0354
2024-01-30 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,108 -1,562 6,243 0.0313
2024-06-04 2023-09-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 8,670 1,665 23.77 7,135 41.76 0.0659
2023-10-11 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,966 2,174 9,025 0.0503
2024-06-04 2023-06-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 7,005 -101 -1.42 5,033 -13.79 0.0442
2023-07-24 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,792 1,686 6,317 0.0335
2024-06-04 2023-03-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 7,106 -988 -12.21 5,839 1.16 0.0543
2023-04-12 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,955 861 7,358 0.0419
2023-02-14 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,094 2,167 36.56 5,771 41.34 0.0582
2022-11-04 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,927 -438 -6.88 4,083 7.33 0.0477
2022-07-27 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,365 -1,186 -15.71 3,804 -27.22 0.0411
2022-05-13 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,551 -4,197 -35.73 5,227 -30.76 0.0452
2022-02-14 2021-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 11,748 -1,616 -12.09 7,549 -6.66 0.0627
2022-02-10 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 13,364 0 8,088 0.0307
2021-10-29 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 13,364 551 4.30 8,088 15.63 0.0713
2021-08-06 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 12,813 -1,230 -8.76 6,995 5.27 0.0604
2021-05-11 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 14,043 820 6.20 6,645 1.54 0.0493
2021-02-12 2020-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 13,223 13,223 6,544 0.0429
2021-02-12 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 13,223 6,544 0.0429
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.