Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionDaymark Wealth Partners, Llc
Latest Disclosed Ownership943 shares
Latest Disclosed Value $ 728,956
Daymark Wealth Partners, Llc reports 186.63% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 11, 2026 - Daymark Wealth Partners, Llc filed a 13F-HR form disclosing ownership of 943 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $728,956 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 329 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 186.63% 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)
2026-05-11 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 943 614 186.63 729 186.61 0.0229
2026-01-12 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 329 329 254 0.0081
2025-08-04 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -523 -100.00 0 -100.00
2025-04-23 2025-03-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 523 180 52.48 332 35.66 0.0143
2025-04-14 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 523 180 332 0.0143
2025-01-17 2024-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 343 -12 -3.38 244 -34.58 0.0103
2025-01-17 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 343 -12 244 0.0103
2024-10-08 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 355 60 20.34 373 20.32 0.0158
2024-08-14 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 295 -52 -14.99 310 -6.91 0.0142
2024-04-10 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 347 0 0.00 334 9.54 0.0180
2024-01-09 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 347 100 40.49 305 49.75 0.0187
2023-10-10 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 247 247 203 0.0140
2023-07-19 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -248 -100.00 0 -100.00
2023-04-20 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 248 248 204 0.0270
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.