Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionVictory Capital Management Inc
Latest Disclosed Ownership129,074 shares
Latest Disclosed Value $ 99,727,735
Victory Capital Management Inc reports 15.28% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 15, 2026 - Victory Capital Management Inc filed a 13F-HR form disclosing ownership of 129,074 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $99,727,735 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 111,964 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 15.28% 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)
2026-05-15 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 129,074 17,110 15.28 99,728 15.40 0.0479
2026-02-13 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 111,964 29,578 35.90 86,422 86.56 0.0488
2025-11-12 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 82,386 -87,892 -51.62 46,323 -49.24 0.0271
2025-08-13 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 170,278 73,109 75.24 91,265 48.09 0.0589
2025-05-02 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 97,169 -42,722 -30.54 61,627 -38.16 0.0631
2025-02-06 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 139,891 43,282 44.80 99,649 -1.88 0.0979
2024-11-05 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 96,609 -2,273 -2.30 101,559 -2.28 0.0978
2024-08-05 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 98,882 -232 -0.23 103,928 8.94 0.1042
2024-05-03 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 99,114 6,223 6.70 95,396 16.93 0.0931
2024-02-05 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 92,891 3,977 4.47 81,585 11.50 0.0858
2023-11-06 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 88,914 11,370 14.66 73,173 31.33 0.0841
2023-07-27 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 77,544 -37,109 -32.37 55,718 -40.86 0.0613
2023-05-02 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 114,653 24,362 26.98 94,207 44.61 0.1058
2023-04-25 2022-12-31 13F/A-3 REGENERON PHARMACEUTICALS COM 75886F107 90,291 -1,679 -1.83 65,144 2.82 0.0750
2023-03-10 2022-12-31 13F/A-2 REGENERON PHARMACEUTICALS COM 75886F107 90,291 -1,679 65,144 0.0711
2023-02-10 2022-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 90,291 -1,679 65,144 0.0449
2023-02-09 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 79,511 -12,459 60,307 0.0410
2022-11-02 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 91,970 14,603 18.87 63,355 38.53 0.0739
2022-08-01 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 77,367 -15,987 -17.13 45,734 -25.67 0.0521
2022-05-04 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 93,354 2,281 2.50 61,531 6.98 0.0616
2022-02-07 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 91,073 3,219 3.66 57,514 8.18 0.0529
2021-11-02 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 87,854 3,780 4.50 53,167 13.22 0.0521
2021-08-03 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 84,074 913 1.10 46,959 19.35 0.0451
2021-05-04 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 83,161 -4,063 -4.66 39,347 -6.63 0.0403
2021-02-01 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 87,224 1,929 2.26 42,139 -11.74 0.0469
2020-11-09 2020-09-30 13F Regeneron Pharmaceuticals COM 75886F107 85,295 3,188 3.88 47,746 -6.76 0.0613
2020-08-07 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 82,107 5,797 7.60 51,206 37.43 0.0693
2020-05-12 2020-03-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 76,310 -7,917 -9.40 37,261 17.82 0.0625
2020-05-04 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 76,310 -7,917 37,261 40,778.3782
2020-02-06 2019-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 84,227 25,186 42.66 31,626 93.10 0.0384
2020-02-04 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 94,139 35,098 31,813 38,133.9455
2019-11-12 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 59,041 51,100 643.50 16,378 558.81 0.0211
2019-08-15 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,941 38 0.48 2,486 -23.39 0.0050
2019-05-03 2019-03-31 13F REGENERON PHARMACEUTICALS CS 75886F107 7,903 -856 -9.77 3,245 -0.79 0.0074
2019-05-02 2018-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 8,759 -26 -0.30 3,271 -7.83 0.0082
2019-02-05 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,759 -26 3,271
2018-11-01 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,785 315 3.72 3,549 21.46 0.0073
2018-08-02 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,470 835 10.94 2,922 11.14 0.0062
2018-05-04 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,635 3,794 98.78 2,629 82.06 0.0057
2018-02-01 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,841 229 6.34 1,444 -10.59 0.0030
2017-10-27 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,612 -350 -8.83 1,615 -17.01 0.0036
2017-08-07 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,962 395 11.07 1,946 40.81 0.0046
2017-05-10 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,567 694 24.16 1,382 31.00 0.0033
2017-02-09 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,873 145 5.32 1,055 -3.83 0.0027
2016-11-02 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,728 376 15.99 1,097 33.62 0.0031
2016-08-09 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,352 45 1.95 821 -1.32 0.0033
2016-05-17 2016-03-31 13F/A-2 REGENERON PHARMACEUTICALS COM 75886F107 2,307 235 11.34 832 -26.04 0.0034
2016-05-12 2016-03-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 2,307 0 832 0.0034
2016-05-12 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,307 832
2016-02-10 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,072 1,067 106.17 1,125 140.90 0.0047
2015-11-06 2015-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,005 -62 -5.81 467 -13.68 0.0019
2015-08-14 2015-06-30 13F/A-01 Regeneron Pharmaceuticals COM 75886F107 1,067 1,067 1,805.36 541 3,082.35 0.0020
2015-08-07 2015-06-30 13F Regeneron Pharmaceuticals COM 75886F107 1,067 541
2014-02-12 2013-12-31 13F Regeneron Pharmaceuticals Common Stock 75886F107 0 -56 -100.00 0 -100.00
2014-03-12 2013-09-30 13F/A-1 Regeneron Pharmaceuticals Common Stock 75886F107 56 56 17 0.0001
2013-11-12 2013-09-30 13F Regeneron Pharmaceuticals Common Stock 75886F107 56 17
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.