Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionMidWestOne Financial Group, Inc.
Latest Disclosed Ownership563 shares
Latest Disclosed Value $ 434,563
MidWestOne Financial Group, Inc. reports 48.68% decrease in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On February 11, 2026 - MidWestOne Financial Group, Inc. filed a 13F-HR form disclosing ownership of 563 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $434,563 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 6, 2025 disclosing 1,097 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of -48.68% 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)
2026-02-11 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 563 -534 -48.68 435 -29.55 0.0483
2025-11-06 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,097 708 182.01 617 201.96 0.0749
2025-08-14 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 389 389 204 0.0265
2023-02-14 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -1,123 -100.00 0 -100.00
2022-11-15 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,123 -5 -0.44 774 16.04 0.1970
2022-08-16 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,128 -22 -1.91 667 -16.94 0.1650
2022-05-17 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,150 35 3.14 803 14.06 0.1730
2022-02-15 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,115 131 13.31 704 18.32 0.1477
2021-11-15 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 984 26 2.71 595 11.21 0.1394
2021-08-17 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 958 -19 -1.94 535 15.80 0.1263
2021-05-18 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 977 414 73.53 462 69.85 0.1118
2021-02-17 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 563 -239 -29.80 272 -39.42 0.0746
2020-11-17 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 802 802 449 0.1490
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.