Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionNational Asset Management, Inc.
Latest Disclosed Ownership325 shares
Latest Disclosed Value $ 243,795
National Asset Management, Inc. reports 7.97% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On April 24, 2026 - National Asset Management, Inc. filed a 13F-HR form disclosing ownership of 325 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $243,795 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 301 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 7.97% 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)
2026-04-24 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 325 24 7.97 244 4.74 0.0154
2026-02-17 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 301 -73 -19.52 233 10.48 0.0107
2025-10-31 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 374 374 210 0.0097
2025-08-19 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -324 -100.00 0 -100.00
2025-02-25 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 324 -392 -54.75 231 -68.88 0.0076
2024-12-13 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 716 -370 -34.07 739 -35.23 0.0206
2024-12-13 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 716 739
2024-08-19 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,086 80 7.95 1,142 37.97 0.0291
2024-05-16 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,006 -158 -13.57 828 -19.08 0.0224
2024-03-15 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,164 158 15.71 1,022 23.58 0.0275
2023-12-01 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,006 -83 -7.62 828 5.75 0.0224
2023-07-27 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,089 -237 -17.87 782 -28.19 0.0175
2023-05-17 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,326 27 2.08 1,089 16.22 0.0290
2023-03-15 2022-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 1,299 -388 -23.00 938 -19.36 0.0263
2023-02-21 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,299 -388 938 0.0236
2022-11-22 2022-09-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 1,687 37 2.24 1,162 19.18 0.0351
2022-11-14 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,687 37 1,162 0.0169
2022-08-12 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,650 45 2.80 975 -13.02 0.0410
2022-05-02 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,605 -61 -3.66 1,121 6.56 0.0367
2022-01-28 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,666 112 7.21 1,052 11.91 0.0303
2021-11-16 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,554 1,088 233.48 940 262.93 0.0299
2021-08-10 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 466 -45 -8.81 259 6.58 0.0084
2021-05-13 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 511 511 243 0.0086
2021-02-04 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -1,106 -100.00 0 -100.00
2020-11-09 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,106 464 72.27 651 61.94 0.0347
2020-07-31 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 642 -81 -11.20 402 13.56 0.0269
2020-05-06 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 723 -255 -26.07 354 -3.80 0.0302
2020-02-10 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 978 -23 -2.30 368 32.37 0.0313
2019-11-12 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,001 111 12.47 278 -0.36 0.0274
2019-08-05 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 890 58 6.97 279 -18.66 0.0306
2019-05-08 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 832 -1,857 -69.06 343 -65.90 0.0428
2019-02-08 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,689 1,218 82.80 1,006 69.08 0.1432
2018-11-08 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,471 707 92.54 595 125.38 0.0708
2018-10-04 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 764 43 5.96 264 6.02 0.0349
2018-05-15 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 721 -68 -8.62 249 -16.16 0.0349
2018-02-15 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 789 -2 -0.25 297 -16.10 0.0401
2017-11-13 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 791 -65 -7.59 354 -15.91 0.0588
2017-08-15 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 856 26 3.13 421 30.75 0.0764
2017-05-15 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 830 -56 -6.32 322 -1.23 0.0642
2017-02-14 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 886 -223 -20.11 326 -26.91 0.0663
2016-11-14 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,109 0 0.00 446 14.95 0.0875
2016-08-15 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,109 265 31.40 388 27.63 0.0777
2016-05-16 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 844 -726 -46.24 304 -64.40 0.0703
2016-02-16 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,570 196 14.26 854 33.44 0.1729
2015-11-16 2015-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,374 150 12.25 640 2.40 0.1537
2015-08-17 2015-06-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 1,224 224 22.40 625 38.58 0.1553
2015-08-14 2015-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,224 625
2015-05-14 2015-03-31 13F Regeneron Pharmaceuticals Lg Cap Gwth 75886F107 1,000 -630 -38.65 451 -91.40 0.1099
2015-02-18 2014-12-31 13F Regeneron Pharmaceuticals Lg Cap Gwth 75886F107 1,630 1,630 0.00 5,247 0.1121
2014-11-14 2014-09-30 13F Regeneron Pharmaceuticals Large Growth 75886F107 0 -148 -100.00 0 -100.00
2014-08-14 2014-06-30 13F Regeneron Pharmaceuticals Large Growth 75886F107 148 148 42 0.0098
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.