Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionBeacon Investment Advisory Services, Inc.
Latest Disclosed Ownership9,812 shares
Latest Disclosed Value $ 7,581,180
Beacon Investment Advisory Services, Inc. reports 2.61% decrease in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On April 14, 2026 - Beacon Investment Advisory Services, Inc. filed a 13F-HR form disclosing ownership of 9,812 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $7,581,180 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on January 16, 2026 disclosing 10,075 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of -2.61% 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)
2026-04-14 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,812 -263 -2.61 7,581 -2.51 0.3113
2026-01-16 2025-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 10,075 -1,450 -12.58 7,777 20.00 0.3174
2026-01-14 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 10,075 -1,450 7,777 0.3174
2025-10-16 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 11,525 -11,990 -50.99 6,480 -47.51 0.2725
2025-07-15 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 23,515 -2,744 -10.45 12,345 -25.87 0.5449
2025-05-06 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 26,259 1,751 7.14 16,654 -4.60 0.7787
2025-01-17 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 24,508 -2,678 -9.85 17,458 -38.92 0.7565
2024-11-14 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 27,186 198 0.73 28,579 0.75 1.1888
2024-08-14 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 26,988 592 2.24 28,365 11.65 1.2173
2024-05-09 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 26,396 407 1.57 25,406 11.30 1.0959
2024-02-12 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 25,989 7,523 40.74 22,826 50.20 1.0375
2023-10-31 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 18,466 9,225 99.83 15,197 128.86 0.7481
2023-07-21 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,241 566 6.52 6,640 -6.83 0.3061
2023-05-04 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,675 54 0.63 7,128 14.60 0.3463
2023-01-13 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,621 8,621 6,220 0.3185
2020-10-29 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -325 -100.00 0 -100.00
2020-07-28 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 325 325 203 0.0116
2019-08-07 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -519 -100.00 0 -100.00
2019-05-15 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 519 519 213 0.0226
2019-02-07 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -844 -100.00 0 -100.00
2018-11-08 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 844 -6 -0.71 341 16.38 0.0331
2018-08-08 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 850 3 0.35 293 0.34 0.0296
2018-04-26 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 847 30 3.67 292 -4.89 0.0301
2018-04-26 2017-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 817 -167 -16.97 307 -30.23 0.0324
2018-02-02 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 817 -167 307 0.0324
2017-11-14 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 984 984 440 0.0377
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.