Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionValley National Advisers Inc
Latest Disclosed Ownership1,187 shares
Latest Disclosed Value $ 917
Valley National Advisers Inc reports 1.33% decrease in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On April 15, 2026 - Valley National Advisers Inc filed a 13F-HR form disclosing ownership of 1,187 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $917 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 1,203 shares of Regeneron Pharmaceuticals, Inc..

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-15 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,187 -16 -1.33 1 0.1184
2026-01-23 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,203 110 10.06 1 0.1286
2025-10-17 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,093 -280 -20.39 1 0.0951
2025-07-22 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,373 2 0.15 1 0.1175
2025-04-25 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,371 132 10.65 1 0.1568
2025-01-24 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,239 -41 -3.20 1 -100.00 0.1584
2024-10-24 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,280 -168 -11.60 1 0.00 0.2428
2024-07-18 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,448 -5 -0.34 2 0.00 0.2259
2024-04-19 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,453 59 4.23 1 0.00 0.2113
2024-01-25 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,394 24 1.75 1 0.00 0.1943
2023-11-13 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,370 34 2.54 1 0.1969
2023-07-31 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,336 -2 -0.15 1 -100.00 0.1615
2023-04-26 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,338 -14 -1.04 1 0.1877
2023-01-12 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,352 -13 -0.95 1 -100.00 0.1720
2022-11-08 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,365 51 3.88 986 23.56 0.2054
2022-07-15 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,314 29 2.26 798 -11.14 0.1684
2022-05-06 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,285 35 2.80 898 13.81 0.1526
2022-02-11 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,250 2 0.16 789 4.50 0.1456
2021-11-10 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,248 145 13.15 755 22.56 0.1366
2021-08-02 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,103 471 74.53 616 106.02 0.1124
2021-05-07 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 632 13 2.10 299 0.00 0.0584
2021-02-11 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 619 152 32.55 299 14.56 0.0627
2020-11-13 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 467 87 22.89 261 10.13 0.0597
2020-08-10 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 380 136 55.74 237 99.16 0.0546
2020-05-13 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 244 -265 -52.06 119 -37.70 0.0329
2020-02-13 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 509 0 0.00 191 35.46 0.0478
2019-11-12 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 509 10 2.00 141 -9.62 0.0387
2019-08-08 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 499 159 46.76 156 11.43 0.0429
2019-04-26 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 340 -159 -31.86 140 -24.73 0.0401
2019-02-25 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 499 9 1.84 186 -6.06 0.0603
2018-11-08 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 490 0 0.00 198 17.16 0.0686
2018-08-14 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 490 59 13.69 169 14.19 0.0645
2018-04-19 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 431 80 22.79 148 12.12 0.0550
2018-02-13 2017-12-31 13F REGENERON PHARMACEUTICAL COM 75886F107 351 -9 -2.50 132 -18.01 0.0459
2017-11-14 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 360 345 2,300.00 161 2,200.00 0.0550
2017-08-04 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 15 0 0.00 7 16.67 0.0025
2017-05-12 2017-03-31 13F REGENERON PHARMACEUTICAL COM 75886F107 15 0 0.00 6 0.00 0.0023
2017-01-31 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 15 0 0.00 6 0.00 0.0028
2016-11-01 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 15 0 0.00 6 20.00 0.0031
2016-08-12 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 15 0 0.00 5 0.00 0.0026
2016-04-21 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 15 0 0.00 5 -37.50 0.0027
2016-03-10 2015-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 15 -19 -55.88 8 -50.00 0.0047
2016-03-10 2015-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 15 -19 8 0.0047
2016-02-11 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 15 8
2015-11-06 2015-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 34 0 0.00 16 -5.88 0.0097
2015-07-31 2015-06-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 34 0 0.00 17 13.33 0.0096
2015-07-29 2015-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 34 17
2015-05-01 2015-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 34 34 15 0.0088
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.