Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionGAM Holding AG
Latest Disclosed Ownership386 shares
Latest Disclosed Value $ 297,942
GAM Holding AG ownership in REGN / Regeneron Pharmaceuticals, Inc.

On February 17, 2026 - GAM Holding AG filed a 13F-HR form disclosing ownership of 386 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $297,942 USD as of December 31, 2025. The entity filed a previous 13F-HR on April 22, 2025 disclosing 0 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.

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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)
2026-02-17 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 386 386 298 0.0144
2025-04-22 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -100.00 0
2025-01-31 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,604 -155 -5.62 1,855 -36.07 0.1083
2024-10-22 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,759 172 6.65 2,901 6.70 0.2313
2024-07-26 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,587 -531 -17.03 2,719 -9.40 0.2086
2024-05-13 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,118 0 0.00 3,001 9.57 0.2171
2024-01-23 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,118 -5 -0.16 2,738 6.58 0.2037
2023-10-16 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,123 11 0.35 2,570 14.89 0.1897
2023-07-27 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,112 -4 -0.13 2,236 -12.66 0.1544
2023-05-09 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,116 166 5.63 2,560 20.30 0.1776
2023-02-02 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,950 -1,249 -29.75 2,128 -26.42 0.1709
2022-10-19 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,199 -1,008 -19.36 2,892 -6.04 0.2212
2022-07-21 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,207 4,208 421.22 3,078 340.97 0.2047
2022-05-06 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 999 -307 -23.51 698 -15.39 0.0300
2022-02-18 2021-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 1,306 -429 -24.73 825 -21.43 0.0368
2022-01-26 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,306 -429 825 0.0369
2021-11-12 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,735 -519 -23.03 1,050 -16.60 0.0489
2021-08-09 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,254 -1,202 -34.78 1,259 -23.00 0.0546
2021-05-10 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,456 3,456 1,635 0.0760
2021-02-10 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -3,528 -100.00 0 -100.00
2020-11-06 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,528 21 0.60 1,975 -9.69 0.1189
2020-08-10 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,507 3,507 2,187 0.1359
2020-02-06 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -2,024 -100.00 0 -100.00
2019-11-08 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,024 2,024 561 0.0247
2019-08-12 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -2,176 -100.00 0 -100.00
2019-05-10 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,176 906 71.34 894 88.61 0.0376
2019-02-08 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,270 -317 -19.97 474 -26.05 0.0240
2018-11-13 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,587 1,587 641 0.0233
2017-11-14 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -15,788 -100.00 0 -100.00
2017-08-07 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 15,788 6,615 72.11 7,754 118.12 0.1144
2017-05-12 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,173 210 2.34 3,555 8.05 0.0562
2017-02-10 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,963 1,230 15.91 3,290 5.82 0.0577
2016-11-07 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,733 -4,954 -39.05 3,109 -29.84 0.0546
2016-08-11 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 12,687 -3,566 -21.94 4,431 -24.36 0.0687
2016-05-13 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 16,253 8,554 111.11 5,858 40.14 0.0975
2016-02-08 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,699 291 3.93 4,180 21.30 0.0651
2015-11-12 2015-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,408 14 0.19 3,446 -8.64 0.0592
2015-07-27 2015-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,394 50 0.68 3,772 13.75 0.0546
2015-05-12 2015-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,344 100 1.38 3,316 11.57 0.0496
2015-02-06 2014-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,244 -8 -0.11 2,972 13.70 0.0444
2014-11-12 2014-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,252 0 0.00 2,614 27.64 0.0380
2014-08-11 2014-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,252 10 0.14 2,048 -5.84 0.0311
2014-05-15 2014-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,242 -2,046 -22.03 2,175 -14.91 0.0349
2014-02-12 2013-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,288 -2,300 -19.85 2,556 -29.51 0.0446
2013-11-12 2013-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 11,588 6,000 107.37 3,626 188.46 0.0679
2013-08-13 2013-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,588 5,588 1,257 0.0275
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.