Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionWealthspire Advisors, LLC
Latest Disclosed Ownership8,706 shares
Latest Disclosed Value $ 6,726,649
Wealthspire Advisors, LLC reports 168.46% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 1, 2026 - Wealthspire Advisors, LLC filed a 13F-HR form disclosing ownership of 8,706 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $6,726,649 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 3,243 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 168.46% 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)
2026-05-01 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,706 5,463 168.46 6,727 168.72 0.0528
2026-02-12 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,243 259 8.68 2,503 49.25 0.0199
2025-11-14 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,984 -3,153 -51.38 1,678 -47.94 0.0088
2025-08-11 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,137 -3,213 -34.36 3,222 -45.68 0.0181
2025-05-09 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,350 3,731 66.40 5,930 48.18 0.0354
2025-02-04 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,619 -2,493 -30.73 4,003 -53.07 0.0398
2024-11-13 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,112 7,643 1,629.64 8,528 1,633.13 0.0868
2024-08-08 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 469 -15 -3.10 493 5.81 0.0063
2024-05-06 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 484 -54 -10.04 466 -1.48 0.0062
2024-02-07 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 538 80 17.47 473 25.53 0.0067
2023-11-06 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 458 16 3.62 377 18.61 0.0062
2023-08-01 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 442 194 78.23 318 56.16 0.0052
2023-05-09 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 248 -39 -13.59 204 -1.93 0.0035
2023-02-14 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 287 287 207 0.0038
2021-08-13 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -718 -100.00 0 -100.00
2021-05-17 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 718 -2,767 -79.40 340 -79.81 0.0081
2021-02-16 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,485 618 21.56 1,684 4.92 0.0501
2020-11-16 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,867 457 18.96 1,605 6.79 0.0954
2020-08-14 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,410 310 14.76 1,503 46.63 0.1047
2020-05-12 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,100 1,182 128.76 1,025 197.10 0.0430
2020-02-14 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 918 -27 -2.86 345 31.68 0.0251
2019-11-12 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 945 945 262 0.0215
2019-05-07 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -182 -100.00 0 -100.00
2019-02-14 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 182 182 68 0.0066
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.