Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionStratos Wealth Partners, LTD.
Latest Disclosed Ownership391 shares
Latest Disclosed Value $ 302,136
Stratos Wealth Partners, LTD. reports 6.83% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On April 28, 2026 - Stratos Wealth Partners, LTD. filed a 13F-HR form disclosing ownership of 391 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $302,136 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 366 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 6.83% 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)
2026-04-28 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 391 25 6.83 302 7.09 0.0034
2026-01-20 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 366 366 283 0.0032
2025-07-29 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -506 -100.00 0 -100.00
2025-04-30 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 506 -115 -18.52 321 -27.60 0.0049
2025-01-27 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 621 -158 -20.28 442 -45.97 0.0062
2024-10-17 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 779 108 16.10 819 16.03 0.0118
2024-07-24 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 671 46 7.36 705 17.30 0.0113
2024-04-16 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 625 202 47.75 602 61.99 0.0100
2024-01-24 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 423 -43 -9.23 372 -3.13 0.0069
2023-10-24 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 466 106 29.44 383 48.45 0.0083
2023-07-18 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 360 43 13.56 259 -0.77 0.0059
2023-04-27 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 317 36 12.81 260 28.71 0.0069
2023-01-19 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 281 -13 -4.42 203 -0.49 0.0051
2022-10-24 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 294 294 203 0.0057
2022-07-22 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -535 -100.00 0 -100.00
2022-04-26 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 535 16 3.08 374 14.02 0.0084
2022-01-14 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 519 -231 -30.80 328 -27.75 0.0073
2021-10-19 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 750 750 454 0.0116
2020-10-29 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -610 -100.00 0 -100.00
2020-07-28 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 610 610 380 0.0135
2019-02-08 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -31 -100.00 0 -100.00
2018-11-02 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 31 31 13 0.0006
2018-08-13 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -17 -100.00 0 -100.00
2018-05-10 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 17 -11 -39.29 6 -45.45 0.0003
2018-02-09 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 28 28 11 0.0005
2017-11-07 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -1,051 -100.00 0 -100.00
2017-07-31 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,051 -1 -0.10 516 26.47 0.0266
2017-05-11 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,052 1,052 408 0.0230
2015-05-13 2015-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -79 -100.00 0 -100.00
2015-02-09 2014-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 79 79 32 0.0052
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.