Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionBiondo Investment Advisors, LLC
Latest Disclosed Ownership10,892 shares
Latest Disclosed Value $ 8,415,595
Biondo Investment Advisors, LLC reports 2.05% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 14, 2026 - Biondo Investment Advisors, LLC filed a 13F-HR form disclosing ownership of 10,892 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $8,415,595 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 10,673 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 2.05% 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)
2026-05-14 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 10,892 219 2.05 8,416 2.15 1.0791
2026-02-13 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 10,673 2,409 29.15 8,238 77.31 0.9960
2025-11-12 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,264 -237 -2.79 4,647 4.10 0.5819
2025-08-08 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,501 40 0.47 4,463 -16.83 0.5884
2025-05-14 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,461 7,586 866.97 5,366 761.32 0.7617
2025-02-12 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 875 -30 -3.31 623 -34.49 0.0859
2024-11-12 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 905 0 0.00 951 0.00 0.1304
2024-08-13 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 905 0 0.00 951 9.18 0.1408
2024-05-13 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 905 0 0.00 871 9.70 0.1347
2024-02-12 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 905 50 5.85 795 12.94 0.1351
2023-11-09 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 855 -150 -14.93 704 -2.63 0.1325
2023-08-11 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,005 0 0.00 722 -12.48 0.1335
2023-05-09 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,005 125 14.20 826 30.13 0.1670
2023-02-09 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 880 -25 -2.76 635 1.77 0.1414
2022-11-07 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 905 0 0.00 623 16.45 0.1437
2022-08-11 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 905 -337 -27.13 535 -38.29 0.1178
2022-05-12 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,242 337 37.24 867 51.57 0.1528
2022-02-08 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 905 0 0.00 572 4.38 0.0953
2021-11-09 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 905 485 115.48 548 133.19 0.0941
2021-08-03 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 420 420 235 0.0404
2021-02-04 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -3,350 -100.00 0 -100.00
2020-11-05 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,350 0 0.00 1,875 -10.24 0.4065
2020-08-07 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,350 3,350 0.00 2,089 11.41 0.5274
2019-11-05 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -1,050 -100.00 0 -100.00
2019-08-06 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,050 -23,682 -95.75 329 -96.76 0.0780
2019-05-08 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 24,732 6,980 39.32 10,155 53.17 2.5476
2019-02-08 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 17,752 -8,160 -31.49 6,630 -36.67 2.0014
2018-11-07 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 25,912 9,070 53.85 10,469 80.19 2.4864
2018-08-02 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 16,842 408 2.48 5,810 2.67 1.4652
2018-05-02 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 16,434 282 1.75 5,659 -6.82 1.4742
2018-02-07 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 16,152 -73 -0.45 6,073 -16.29 1.5343
2017-11-08 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 16,225 740 4.78 7,255 -4.60 1.9955
2017-08-11 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 15,485 13,200 577.68 7,605 853.01 2.1995
2017-05-01 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,285 -9,650 -80.85 798 -81.78 0.2851
2017-02-06 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 11,935 465 4.05 4,381 -4.99 1.4489
2016-11-03 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 11,470 9,185 401.97 4,611 477.82 1.5598
2016-07-21 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,285 935 69.26 798 63.86 0.2847
2016-05-09 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,350 1,350 -40.92 487 -38.97 0.1846
2016-01-29 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 0 0 0.0000
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.