Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionValeo Financial Advisors, LLC
Latest Disclosed Ownership1,296 shares
Latest Disclosed Value $ 1,001,369
Valeo Financial Advisors, LLC reports 19.65% decrease in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 8, 2026 - Valeo Financial Advisors, LLC filed a 13F-HR form disclosing ownership of 1,296 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $1,001,369 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 1,613 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of -19.65% 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 Stock 75886F107 1,296 -317 -19.65 1,001 -19.53 0.0239
2026-02-04 2025-12-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 1,613 -253 -13.56 1,245 18.59 0.0276
2025-11-03 2025-09-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 1,866 69 3.84 1,049 11.24 0.0239
2025-09-12 2025-06-30 13F/A-1 REGENERON PHARMACEUTICALS Stock 75886F107 1,797 609 51.26 944 25.23 0.0232
2025-07-22 2025-06-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 1,787 599 938 0.0226
2025-04-30 2025-03-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 1,188 -63 -5.04 753 -15.49 0.0210
2025-01-30 2024-12-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 1,251 -296 -19.13 891 -45.20 0.0248
2024-10-10 2024-09-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 1,547 442 40.00 1,626 40.05 0.0463
2024-07-10 2024-06-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 1,105 210 23.46 1,161 43.16 0.0363
2024-04-25 2024-03-31 13F/A-1 REGENERON PHARMACEUTICALS Stock 75886F107 895 255 39.84 811 44.31 0.0291
2024-04-19 2024-03-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 661 21 636 0.0219
2024-01-29 2023-12-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 640 21 3.39 562 10.41 0.0227
2023-10-20 2023-09-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 619 103 19.96 509 37.57 0.0232
2023-07-14 2023-06-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 516 -98 -15.96 371 -26.59 0.0169
2023-04-17 2023-03-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 614 158 34.65 505 53.66 0.0243
2023-02-09 2022-12-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 456 456 329 0.0180
2022-04-28 2022-03-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 0 -389 -100.00 0 -100.00
2022-01-07 2021-12-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 389 6 1.57 246 6.03 0.0133
2021-11-02 2021-09-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 383 19 5.22 232 14.29 0.0133
2021-07-22 2021-06-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 364 4 1.11 203 19.41 0.0123
2021-04-12 2021-03-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 360 -160 -30.77 170 -32.27 0.0079
2021-02-11 2020-12-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 520 1 0.19 251 -13.75 0.0129
2020-10-28 2020-09-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 519 72 16.11 291 4.30 0.0254
2020-07-20 2020-06-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 447 22 5.18 279 27.98 0.0254
2020-04-13 2020-03-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 425 15 3.66 218 41.56 0.0232
2020-01-24 2019-12-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 410 350 583.33 154 805.88 0.0149
2019-10-15 2019-09-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 60 -350 -85.37 17 -86.72 0.0019
2019-07-10 2019-06-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 410 350 583.33 128 412.00 0.0147
2019-04-12 2019-03-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 60 -50 -45.45 25 -39.02 0.0030
2019-01-30 2018-12-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 110 -343 -75.72 41 -73.38 0.0057
2018-11-01 2018-09-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 453 -100 -18.08 154 -24.14 0.0208
2018-08-14 2018-06-30 13F REGENERON PHARMACEUTICALS Stock 75886F107 553 500 943.40 203 1,027.78 0.0284
2018-04-12 2018-03-31 13F REGENERON PHARMACEUTICALS Stock 75886F107 53 0 0.00 18 -10.00 0.0029
2018-02-09 2017-12-31 13F REGENERON PHARMACEUTICALS COM Stock 75886F107 53 18 51.43 20 25.00 0.0033
2017-11-15 2017-09-30 13F/A-1 REGENERON PHARMACEUTICALS COM Stock 75886F107 35 35 16 0.0036
2017-11-14 2017-09-30 13F REGENERON PHARMACEUTICALS COM Stock 75886F107 35 16
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.