Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionFirst Western Trust Bank
Latest Disclosed Ownership544 shares
Latest Disclosed Value $ 420,316
First Western Trust Bank ownership in REGN / Regeneron Pharmaceuticals, Inc.

On May 12, 2026 - First Western Trust Bank filed a 13F-HR form disclosing ownership of 544 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $420,316 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 544 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 0.00% 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 Common Stock 75886F107 544 0 0.00 420 0.24 0.0212
2026-02-12 2025-12-31 13F REGENERON PHARMACEUTICALS Common Stock 75886F107 544 0 0.00 420 37.38 0.0206
2025-11-14 2025-09-30 13F REGENERON PHARMACEUTICALS Common Stock 75886F107 544 -1 -0.18 306 6.64 0.0140
2025-08-08 2025-06-30 13F REGENERON PHARMACEUTICALS Common Stock 75886F107 545 33 6.45 286 -11.73 0.0129
2025-05-12 2025-03-31 13F REGENERON PHARMACEUTICALS Common Stock 75886F107 512 37 7.79 325 -4.14 0.0155
2025-02-13 2024-12-31 13F REGENERON PHARMACEUTICALS Common Stock 75886F107 475 -39 -7.59 338 -37.41 0.0156
2024-11-07 2024-09-30 13F REGENERON PHARMACEUTICALS Common Stock 75886F107 514 51 11.02 540 11.11 0.0243
2024-08-05 2024-06-30 13F REGENERON PHARMACEUTICALS Common Stock 75886F107 463 0 0.00 487 9.21 0.0232
2024-05-16 2024-03-31 13F REGENERON PHARMACEUTICALS Common Stock 75886F107 463 0 0.00 446 9.61 0.0203
2024-02-07 2023-12-31 13F REGENERON PHARMACEUTICALS COM Common Stock 75886F107 463 0 0.00 407 6.56 0.0202
2023-11-14 2023-09-30 13F REGENERON PHARMACEUTICALS COM Common Stock 75886F107 463 -1 -0.22 381 14.41 0.0205
2023-08-11 2023-06-30 13F REGENERON PHARMACEUTICALS COM Common Stock 75886F107 464 -13 -2.73 333 -14.83 0.0163
2023-05-15 2023-03-31 13F REGENERON PHARMACEUTICALS COM Common Stock 75886F107 477 0 0.00 392 13.66 0.0204
2023-02-10 2022-12-31 13F REGENERON PHARMACEUTICALS COM Common Stock 75886F107 477 0 0.00 344 4.56 0.0198
2022-11-09 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 477 0 0.00 329 15.44 0.0221
2022-08-12 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 477 -4 -0.83 285 -14.41 0.0189
2022-05-13 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 481 481 333 0.0171
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.