Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionFisher Asset Management, LLC
Latest Disclosed Ownership5,059 shares
Latest Disclosed Value $ 3,909,303
Fisher Asset Management, LLC reports 1.38% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 5, 2026 - Fisher Asset Management, LLC filed a 13F-HR form disclosing ownership of 5,059 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $3,909,303 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 4,990 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 1.38% 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.

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)
2026-05-05 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,059 69 1.38 3,909 1.48 0.0013
2026-02-09 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,990 353 7.61 3,853 47.76 0.0013
2025-11-12 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,637 284 6.52 2,608 14.09 0.0009
2025-08-13 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,353 0 0.00 2,285 -17.24 0.0009
2025-05-14 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,353 -1,537 -26.10 2,761 -34.20 0.0012
2025-02-05 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,890 833 16.47 4,197 -21.07 0.0017
2024-11-12 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,057 -608 -10.73 5,317 -10.72 0.0022
2024-08-14 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,665 -149 -2.56 5,954 6.40 0.0026
2024-05-09 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,814 192 3.42 5,596 13.33 0.0026
2024-03-05 2023-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 5,622 472 9.17 4,938 16.52 0.0026
2024-02-06 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,635 485 4,949 0.0024
2023-11-13 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,150 -218 -4.06 4,239 9.88 0.0024
2023-12-12 2023-06-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 5,368 1,001 22.92 3,857 7.50 0.0021
2023-08-08 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,368 1,001 4 0.0021
2023-12-12 2023-03-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 4,367 -239 -5.19 3,588 119,500.00 0.0022
2023-05-01 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,676 70 4 0.0023
2023-02-03 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,606 -13 -0.28 3 -99.91 0.0022
2022-11-08 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,619 50 1.09 3,182 17.81 0.0024
2022-08-09 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,569 3 0.07 2,701 -15.30 0.0019
2022-05-05 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,566 -650 -12.46 3,189 -3.19 0.0019
2022-02-02 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,216 142 2.80 3,294 7.26 0.0018
2021-10-26 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,074 -85 -1.65 3,071 6.56 0.0019
2021-07-27 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,159 44 0.86 2,882 19.09 0.0018
2021-04-27 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,115 -112 -2.14 2,420 -4.16 0.0017
2021-01-29 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,227 -44 -0.83 2,525 -14.44 0.0019
2020-11-12 2020-09-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 5,271 130 2.53 2,951 -7.95 0.0026
2020-11-10 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,271 130 2,951 2,505.9080
2020-08-07 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,141 -2 -0.04 3,206 27.68 0.0031
2020-04-28 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,143 -145 -2.74 2,511 26.44 0.0031
2020-02-12 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,288 -159 -2.92 1,986 31.44 0.0020
2019-10-29 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,447 18 0.33 1,511 -11.07 0.0017
2019-07-30 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,429 -99 -1.79 1,699 -25.15 0.0019
2019-04-22 2019-03-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 5,528 4,264 337.34 2,270 380.93 0.0027
2019-04-22 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,264 0 472
2019-01-25 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,264 -14 -1.10 472 -8.53 0.0006
2018-10-23 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,278 -302 -19.11 516 -5.32 0.0006
2018-07-09 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,580 250 18.80 545 19.00 0.0007
2018-05-10 2018-03-31 13F/A-2 REGENERON PHARMACEUTICALS COM 75886F107 1,330 -135 -9.22 458 -16.88 0.0006
2018-04-20 2018-03-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 1,595 265 549 0.0007
2018-04-19 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,595 130 549
2018-01-24 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,465 -109 -6.93 551 -21.73 0.0007
2017-10-17 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,574 163 11.55 704 1.59 0.0010
2017-07-12 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,411 605 75.06 693 122.12 0.0010
2017-04-24 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 806 91 12.73 312 19.08 0.0005
2017-01-10 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 715 95 15.32 262 5.22 0.0005
2016-10-11 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 620 7 1.14 249 8.26 0.0004
2016-07-12 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 613 0 0.00 230 -7.63 0.0004
2016-04-18 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 613 -2 -0.33 249 -25.45 0.0005
2016-01-14 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 615 111 22.02 334 42.74 0.0006
2015-10-20 2015-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 504 -61 -10.80 234 -18.75 0.0005
2015-07-17 2015-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 565 31 5.81 288 19.50 0.0006
2015-04-30 2015-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 534 534 0.00 241 0.0005
2015-01-29 2014-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -583 -100.00 0 -100.00
2014-10-20 2014-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 583 583 210 0.0004
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.