Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionCENTRAL TRUST Co
Latest Disclosed Ownership1,075 shares
Latest Disclosed Value $ 830,588
CENTRAL TRUST Co reports 43.14% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On April 17, 2026 - CENTRAL TRUST Co filed a 13F-HR form disclosing ownership of 1,075 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $830,588 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 751 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 43.14% 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)
2026-04-17 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,075 324 43.14 831 43.35 0.0164
2026-02-02 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 751 232 44.70 579 98.97 0.0113
2025-11-06 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 519 -673 -56.46 292 -53.44 0.0061
2025-08-07 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,192 -1,069 -47.28 626 -56.39 0.0144
2025-04-18 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,261 -205 -8.31 1,434 -18.39 0.0353
2025-01-24 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,466 1,021 70.66 1,757 15.60 0.0430
2024-10-22 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,445 -333 -18.73 1,519 -18.68 0.0356
2024-08-05 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,778 -133 -6.96 1,869 1.58 0.0458
2024-04-24 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,911 -61 -3.09 1,839 6.24 0.0458
2024-01-24 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,972 -115 -5.51 1,732 0.82 0.0460
2023-10-26 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,087 -613 -22.70 1,718 -11.49 0.0495
2023-07-26 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,700 -981 -26.65 1,940 -35.85 0.0541
2023-04-19 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,681 -818 -18.18 3,025 -6.81 0.0885
2023-01-26 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,499 -326 -6.76 3,246 -2.38 0.1001
2022-11-17 2022-09-30 13F/A-2 REGENERON PHARMACEUTICALS COM 75886F107 4,825 -72 -1.47 3,324 14.86 0.1140
2022-11-04 2022-09-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 4,897 0 2,894 0.0519
2022-11-03 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,897 0 2,894 0.0519
2022-08-09 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,897 -1,907 -28.03 2,894 -39.10 0.0954
2022-05-03 2022-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 6,804 196 2.97 4,752 13.87 0.1360
2022-02-08 2021-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 6,608 -65 -0.97 4,173 3.32 0.1176
2021-10-19 2021-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 6,673 223 3.46 4,039 12.13 0.1440
2021-07-23 2021-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 6,450 -702 -9.82 3,602 6.44 0.1307
2021-04-23 2021-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 7,152 4,502 169.89 3,384 164.38 0.1324
2021-01-29 2020-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 2,650 -549 -17.16 1,280 -28.53 0.0523
2020-10-22 2020-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 3,199 -12 -0.37 1,791 -10.58 0.0811
2020-07-14 2020-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 3,211 99 3.18 2,003 31.78 0.1005
2020-04-17 2020-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 3,112 37 1.20 1,520 31.60 0.0931
2020-01-21 2019-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 3,075 -94 -2.97 1,155 31.40 0.0591
2019-10-28 2019-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 3,169 -1,999 -38.68 879 -41.71 0.0495
2019-07-12 2019-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 5,168 2,774 115.87 1,508 53.41 0.0859
2019-04-26 2019-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 2,394 2,357 6,370.27 983 6,921.43 0.0586
2019-01-08 2018-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 37 0 0.00 14 -6.67 0.0009
2018-10-04 2018-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 37 0 0.00 15 15.38 0.0009
2018-07-09 2018-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 37 0 0.00 13 0.00 0.0008
2018-04-04 2018-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 37 0 0.00 13 -7.14 0.0008
2018-01-23 2017-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 37 -29 -43.94 14 -53.33 0.0009
2017-10-17 2017-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 66 -28 -29.79 30 -34.78 0.0019
2017-07-14 2017-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 94 2 2.17 46 27.78 0.0030
2017-04-06 2017-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 92 7 8.24 36 16.13 0.0024
2017-01-24 2016-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 85 0 0.00 31 -8.82 0.0021
2016-10-24 2016-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 85 -134 -61.19 34 -55.26 0.0025
2016-08-08 2016-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 219 12 5.80 76 1.33 0.0057
2016-04-11 2016-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 207 -2,089 -90.98 75 -93.99 0.0059
2016-01-21 2015-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 2,296 -491 -17.62 1,247 -3.78 0.1030
2015-10-14 2015-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 2,787 2,518 936.06 1,296 845.99 0.1128
2015-07-28 2015-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 269 -130 -32.58 137 -23.89 0.0108
2015-04-09 2015-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 399 -440 -52.44 180 -47.67 0.0145
2015-01-16 2014-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 839 -978 -53.82 344 -47.48 0.0280
2014-10-23 2014-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 1,817 -143 -7.30 655 11.21 0.0520
2014-05-07 2014-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 1,960 -5 -0.25 589 8.87 0.0487
2014-01-27 2013-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 1,965 -170 -7.96 541 -19.01 0.0454
2013-10-24 2013-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 2,135 2,135 668 0.0605
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.