Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionMn Services Vermogensbeheer B.V.
Latest Disclosed Ownership41,213 shares
Latest Disclosed Value $ 31,843
Mn Services Vermogensbeheer B.V. ownership in REGN / Regeneron Pharmaceuticals, Inc.

On April 30, 2026 - Mn Services Vermogensbeheer B.V. filed a 13F-HR form disclosing ownership of 41,213 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $31,843 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 41,213 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)
2026-04-30 2026-03-31 13F REGENERON PHARM COM 75886F107 41,213 0 0.00 32 0.00 0.2102
2026-01-15 2025-12-31 13F REGENERON PHARM COM 75886F107 41,213 713 1.76 32 40.91 0.1957
2025-10-31 2025-09-30 13F REGENERON PHARM COM 75886F107 40,500 500 1.25 23 4.76 0.1472
2025-07-10 2025-06-30 13F REGENERON PHARM COM 75886F107 40,000 400 1.01 21 -16.00 0.1461
2025-04-17 2025-03-31 13F REGENERON PHARM COM 75886F107 39,600 -2,900 -6.82 25 -16.67 0.1944
2025-02-05 2024-12-31 13F REGENERON PHARM COM 75886F107 42,500 1,200 2.91 30 -30.23 0.2040
2024-10-30 2024-09-30 13F REGENERON PHARM COM 75886F107 41,300 -1,000 -2.36 43 -2.27 0.3044
2024-07-25 2024-06-30 13F REGENERON PHARM COM 75886F107 42,300 -1,000 -2.31 44 7.32 0.3211
2024-04-29 2024-03-31 13F REGENERON PHARM COM 75886F107 43,300 -7,400 -14.60 42 -6.82 0.3025
2024-01-29 2023-12-31 13F REGENERON PHARM COM 75886F107 50,700 -1,800 -3.43 45 2.33 0.4011
2023-10-25 2023-09-30 13F REGENERON PHARM COM 75886F107 52,500 1,300 2.54 43 19.44 0.4166
2023-08-09 2023-06-30 13F REGENERON PHARM COM 75886F107 51,200 -2,000 -3.76 37 -16.28 0.3432
2023-04-26 2023-03-31 13F REGENERON PHARM COM 75886F107 53,200 1,900 3.70 44 16.22 0.4504
2023-02-03 2022-12-31 13F REGENERON PHARM COM 75886F107 51,300 -8,200 -13.78 37 -99.91 0.4148
2022-11-01 2022-09-30 13F REGENERON PHARM COM 75886F107 59,500 -3,200 -5.10 40,988 10.59 0.4316
2022-08-03 2022-06-30 13F REGENERON PHARM COM 75886F107 62,700 -12,700 -16.84 37,064 -29.62 0.3454
2022-05-10 2022-03-31 13F REGENERON PHARM COM 75886F107 75,400 -4,700 -5.87 52,661 4.10 0.3504
2022-02-10 2021-12-31 13F REGENERON PHARM COM 75886F107 80,100 1,700 2.17 50,585 6.62 0.2963
2021-11-03 2021-09-30 13F REGENERON PHARM COM 75886F107 78,400 1,200 1.55 47,446 30.49 0.2928
2021-08-05 2021-06-30 13F REGENERON PHARM COM 75886F107 77,200 1,100 1.45 36,359 -1.10 0.2824
2021-02-09 2020-12-31 13F REGENERON PHARM COM 75886F107 76,100 1,300 1.74 36,764 -12.20 0.2595
2020-11-04 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 74,800 1,100 1.49 41,872 -8.90 0.3295
2020-07-23 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 73,700 73,700 45,963 0.3930
2019-11-12 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -13,672 -100.00 0 -100.00
2019-07-25 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 13,672 0 0.00 4,279 -23.78 0.0503
2019-05-06 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 13,672 200 1.48 5,614 27.53 0.0649
2019-02-12 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 13,472 700 5.48 4,402 -14.69 0.0668
2018-11-02 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 12,772 300 2.41 5,160 19.92 0.1210
2018-08-13 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 12,472 0 0.00 4,303 0.19 0.1079
2018-05-11 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 12,472 300 2.46 4,295 12.70 0.1120
2018-02-02 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 12,172 -700 -5.44 3,811 -33.78 0.1199
2017-11-01 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 12,872 -200 -1.53 5,755 -10.36 0.1512
2017-07-14 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 13,072 11,001 531.19 6,420 756.00 0.1766
2017-04-24 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,071 -28 -1.33 750 2.60 0.1450
2017-01-11 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,099 116 5.85 731 -8.28 0.1491
2016-11-08 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,983 34 1.74 797 30.02 0.1588
2016-08-05 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,949 34 1.78 613 1.16 0.1417
2016-04-28 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,915 1,915 606 0.1409
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.