Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionCommerce Bank
Latest Disclosed Ownership6,448 shares
Latest Disclosed Value $ 4,981,982
Commerce Bank reports 2.84% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 11, 2026 - Commerce Bank filed a 13F-HR form disclosing ownership of 6,448 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $4,981,982 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,270 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 2.84% 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 6,448 178 2.84 4,982 2.93 0.0241
2026-02-13 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,270 60 0.97 4,840 38.61 0.0267
2025-11-12 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,210 57 0.93 3,492 8.08 0.0194
2025-08-07 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,153 -625 -9.22 3,230 -24.85 0.0191
2025-05-08 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,778 -26 -0.38 4,299 -11.31 0.0274
2025-02-13 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,804 89 1.33 4,847 -31.35 0.0299
2024-11-08 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,715 -65 -0.96 7,059 -0.93 0.0433
2024-08-12 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,780 534 8.55 7,126 18.53 0.0462
2024-05-03 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,246 29 0.47 6,012 10.09 0.0398
2024-02-09 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,217 257 4.31 5,460 11.34 0.0389
2023-11-14 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,960 -9 -0.15 4,905 14.37 0.0386
2023-08-08 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,969 94 1.60 4,289 -11.17 0.0321
2023-05-04 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,875 51 0.88 4,827 14.90 0.0378
2023-02-10 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,824 -36 -0.61 4,202 4.06 0.0341
2022-11-04 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,860 -361 -5.80 4,037 9.79 0.0351
2022-08-12 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,221 -17 -0.27 3,677 -15.59 0.0300
2022-05-09 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,238 -938 -13.07 4,356 -3.88 0.0298
2022-02-14 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,176 -4,637 -39.25 4,532 -36.61 0.0296
2021-11-09 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 11,813 2,996 33.98 7,149 45.19 0.0506
2021-08-09 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,817 -457 -4.93 4,924 12.22 0.0350
2021-05-05 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,274 -2 -0.02 4,388 -2.08 0.0334
2021-02-09 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,276 115 1.26 4,481 -12.62 0.0362
2020-11-06 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,161 -1,163 -11.27 5,128 -20.35 0.0464
2020-08-07 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,324 2,534 32.53 6,438 69.24 0.0627
2020-05-08 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,790 695 9.80 3,804 42.79 0.0461
2020-02-14 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,095 298 4.38 2,664 41.25 0.0254
2019-11-12 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,797 137 2.06 1,886 -9.54 0.0194
2019-08-07 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,660 -321 -4.60 2,085 -27.28 0.0234
2019-05-08 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,981 -833 -10.66 2,867 -1.75 0.0340
2019-02-11 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,814 602 8.35 2,918 0.14 0.0372
2018-11-02 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,212 107 1.51 2,914 18.89 0.0347
2018-08-08 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,105 67 0.95 2,451 1.16 0.0311
2018-05-03 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,038 1,014 16.83 2,423 6.98 0.0320
2018-02-12 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,024 34 0.57 2,265 -15.45 0.0295
2017-11-07 2017-09-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 5,990 15 0.25 2,679 -8.69 0.0364
2017-11-07 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,975 2,934
2017-08-08 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,975 64 1.08 2,934 28.07 0.0411
2017-05-05 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,911 -202 -3.30 2,291 2.09 0.0327
2017-02-08 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,113 -5,205 -45.99 2,244 -50.68 0.0335
2016-11-03 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 11,318 -6 -0.05 4,550 15.04 0.0708
2016-08-09 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 11,324 -85 -0.75 3,955 -3.82 0.0626
2016-04-27 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 11,409 421 3.83 4,112 -31.06 0.0683
2016-02-12 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 10,988 93 0.85 5,965 17.72 0.0998
2015-11-10 2015-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,895 0 0.00 5,067 -8.83 0.0871
2015-08-03 2015-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,895 25 0.23 5,558 13.24 0.0870
2015-05-06 2015-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 10,870 13 0.12 4,908 10.19 0.0763
2015-02-11 2014-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 10,857 -22 -0.20 4,454 13.56 0.0704
2014-11-06 2014-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,879 214 2.01 3,922 30.21 0.0647
2014-08-05 2014-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,665 -1,735 -13.99 3,012 -19.10 0.0492
2014-05-09 2014-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 12,400 0 0.00 3,723 9.08 0.0634
2014-02-14 2013-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 12,400 0 0.00 3,413 -12.04 0.0591
2013-11-05 2013-09-30 13F/A-1 RBC BEARINGS COM 75886F107 855 -11,545 56 0.0010
2013-11-05 2013-09-30 13F/A-2 REGENERON PHARMACEUTICALS COM 75886F107 12,400 0 0.00 3,880 39.12 0.0700
2013-11-04 2013-09-30 13F RBC BEARINGS COM 75886F107 855 56
2013-08-07 2013-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 12,400 0 0.00 2,789 27.53 0.0519
2013-08-08 2013-03-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 12,400 12,400 2,187 0.0427
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.