Regeneron Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US75886F1075

SecurityREGN / Regeneron Pharmaceuticals, Inc.
InstitutionFirst Horizon Advisors, Inc.
Latest Disclosed Ownership15,417 shares
Latest Disclosed Value $ 8,094,229
First Horizon Advisors, Inc. reports 0.67% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On August 6, 2025 - First Horizon Advisors, Inc. filed a 13F-HR form disclosing ownership of 15,417 shares of Regeneron Pharmaceuticals, Inc. (US:REGN) valued at $8,093,925 USD as of June 30, 2025. The entity filed a previous 13F-HR on April 28, 2025 disclosing 15,314 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 0.67% during the quarter. The current value of the position is $9,693,130 USD.

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)
2025-08-06 2025-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 15,417 103 0.67 8,094 -16.66 0.2103
2025-04-28 2025-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 15,314 2,119 16.06 9,713 3.33 0.2736
2025-02-03 2024-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 13,195 -242 -1.80 9,399 -33.46 0.2633
2024-11-08 2024-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 13,437 -206 -1.51 14,126 -1.49 0.3924
2024-07-19 2024-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 13,643 -438 -3.11 14,339 5.81 0.4359
2024-04-26 2024-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 14,081 -434 -2.99 13,553 6.31 0.4189
2024-02-06 2023-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 14,515 608 4.37 12,748 11.39 0.4216
2023-10-27 2023-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 13,907 99 0.72 11,445 15.35 0.4143
2023-08-03 2023-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 13,808 178 1.31 9,922 -11.41 0.3437
2023-05-15 2023-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 13,630 897 7.04 11,199 21.91 0.3998
2023-02-10 2022-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 12,733 557 4.57 9,187 9.53 0.3387
2022-11-09 2022-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 12,176 1,070 9.63 8,387 27.77 0.3362
2022-08-02 2022-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 11,106 11,085 52,785.71 6,564 43,660.00 0.2334
2022-05-10 2022-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 21 -1,141 -98.19 15 -97.95 0.0006
2022-05-10 2022-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 3,128 2,185
2022-02-09 2021-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 1,162 297 34.34 733 39.89 0.0221
2021-11-15 2021-09-30 13F/A-1 REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 865 378 77.62 524 92.65 0.0171
2021-11-09 2021-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 1,132 645 544 0.0079
2021-08-09 2021-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 487 -13 -2.60 272 15.25 0.0147
2021-05-11 2021-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 500 21 4.38 236 2.16 0.0136
2021-02-11 2020-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 479 -152 -24.09 231 -34.56 0.0155
2020-11-12 2020-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 631 -1 -0.16 353 -10.41 0.0264
2020-07-31 2020-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 632 -6 -0.94 394 26.69 0.0310
2020-05-05 2020-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 638 8 1.27 311 31.22 0.0291
2020-01-07 2019-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 630 0 0.00 237 35.43 0.0175
2019-10-23 2019-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 630 0 0.00 175 -11.17 0.0136
2019-08-05 2019-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 630 -80 -11.27 197 -32.53 0.0152
2019-04-26 2019-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 710 0 0.00 292 10.19 0.0234
2019-02-11 2018-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 710 -1 -0.14 265 -7.67 0.0236
2018-11-08 2018-09-30 13F/A-2 REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 711 31 4.56 287 22.13 0.0223
2018-11-05 2018-09-30 13F/A-1 REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 711 0 287 0.0160
2018-11-05 2018-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 3 -677 1 0.0001
2018-08-06 2018-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 680 630 1,260.00 235 1,368.75 0.0197
2018-05-02 2018-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 50 -126 -71.59 16 -75.76 0.0016
2018-01-25 2017-12-31 13F REGENERON0PHARMACEUTICALS0INC COMMON0STOCK 75886F107 176 34 23.94 66 4.76 0.0063
2017-11-09 2017-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 142 -24 -14.46 63 -23.17 0.0065
2017-08-14 2017-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 166 44 36.07 82 74.47 0.0089
2017-05-02 2017-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 122 69 130.19 47 123.81 0.0054
2017-02-13 2016-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 53 0 0.00 21 0.00 0.0027
2016-10-28 2016-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 53 17 47.22 21 61.54 0.0027
2016-07-29 2016-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 36 0 0.00 13 0.00 0.0018
2016-05-09 2016-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 36 0 0.00 13 -35.00 0.0014
2016-02-08 2015-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 36 -2 -5.26 20 17.65 0.0036
2015-11-06 2015-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 38 -19 -33.33 17 -41.38 0.0026
2015-08-03 2015-06-30 13F/A-1 REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 57 -41 -41.84 29 -32.56 0.0042
2015-07-31 2015-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 55 28
2015-07-31 2015-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 002730190 1 1
2015-05-04 2015-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 98 98 0.00 43 0.0062
2015-02-05 2014-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 0 -112 -100.00 0 -100.00
2014-11-13 2014-09-30 13F/A-1 REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 112 -15 -11.81 40 11.11 0.0062
2014-11-13 2014-09-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 112 -15 40 0.0041
2014-08-07 2014-06-30 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 127 26 25.74 36 20.00 0.0052
2014-05-02 2014-03-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 101 37 57.81 30 66.67 0.0042
2014-02-07 2013-12-31 13F REGENERON PHARMACEUTICALS COMMON STOCK 75886F107 64 64 255.56 18 350.00 0.0027
2013-11-15 2013-09-30 13F REGENERON Common Stock 75886F107 0 -18 -100.00 0 -100.00
2014-02-25 2013-06-30 13F REGENERON Common Stock 75886F107 18 18 4 0.0020
2014-02-25 2013-03-31 13F REGENERON Common Stock 75886F107 0 0 0 0.0000
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.