Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionCircle Wealth Management, LLC
Latest Disclosed Ownership1,240 shares
Latest Disclosed Value $ 958,074
Circle Wealth Management, LLC reports 1.22% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 12, 2026 - Circle Wealth Management, LLC filed a 13F-HR form disclosing ownership of 1,240 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $958,074 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,225 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 1.22% 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)
2026-05-12 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,240 15 1.22 958 1.38 0.0135
2026-02-12 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,225 4 0.33 946 37.76 0.0146
2025-11-14 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,221 331 37.19 687 46.90 0.0134
2025-08-14 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 890 0 0.00 467 -17.20 0.0101
2025-05-14 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 890 0 0.00 564 -10.90 0.0130
2025-02-14 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 890 0 0.00 634 -32.30 0.0134
2024-11-14 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 890 0 0.00 936 0.00 0.0207
2024-08-13 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 890 -5 -0.56 935 8.59 0.0216
2024-05-14 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 895 0 0.00 861 9.54 0.0214
2024-02-15 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 895 -7 -0.78 786 5.93 0.0200
2023-11-15 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 902 257 39.84 742 60.26 0.0185
2023-08-11 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 645 -2 -0.31 463 -12.81 0.0613
2023-05-09 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 647 2 0.31 532 14.19 0.0769
2023-02-13 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 645 10 1.57 465 6.41 0.0719
2022-11-14 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 635 -10 -1.55 437 14.70 0.0721
2022-08-12 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 645 0 0.00 381 -15.33 0.0606
2022-05-16 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 645 0 0.00 450 10.57 0.0591
2022-02-14 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 645 645 407 0.0531
2021-05-17 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -3,675 -100.00 0 -100.00
2021-02-18 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,675 0 0.00 1,775 -13.71 0.2543
2020-11-16 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,675 -8 -0.22 2,057 -10.45 0.3397
2020-08-14 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,683 -1,396 -27.49 2,297 -7.38 0.4022
2020-05-15 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,079 -239 -4.49 2,480 24.19 0.4837
2020-02-24 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,318 -52 -0.97 1,997 34.03 0.3458
2019-11-15 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,370 -50 -0.92 1,490 -12.15 0.3171
2019-08-14 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,420 -890 -14.10 1,696 -34.54 0.3676
2019-05-15 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,310 6,310 2,591 0.5809
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.