Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionVanguard Group Inc
Latest Disclosed Ownership8,838,240 shares
Ownership 8.25%
Vanguard Group Inc ownership in REGN / Regeneron Pharmaceuticals, Inc.

2024-02-13 - Vanguard Group Inc has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 8,838,240 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN). This represents 8.25 percent ownership of the company. In their previous filing dated 2023-02-09 , Vanguard Group Inc had reported owning 8,722,448 shares, indicating an increase of 1.33 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2024-02-13 2024-02-13 13G/A 8,722,448 8,838,240 1.33 8.25 1.23
2023-02-09 2023-02-09 13G/A 8,158,515 8,722,448 6.91 8.15 5.57
2022-02-10 2022-02-10 13G/A 7,931,220 8,158,515 2.87 7.72 2.12
2021-02-10 2021-02-10 13G/A 6,252,303 7,931,220 26.85 7.56 30.57
2020-02-12 2020-02-12 13G/A 5,898,033 6,252,303 6.01 5.79 4.51
2019-02-11 2019-02-11 13G/A 5,494,051 5,898,033 7.35 5.54 6.54
2018-02-09 2018-02-09 13G 5,494,051 5.20

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-01-29 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,075,153 26,884 0.30 7,004,838 37.69 0.1016
2025-11-07 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,048,269 -375,779 -3.99 5,087,570 2.83 0.0762
2025-08-11 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,424,048 16,157 0.17 4,947,625 -17.08 0.0801
2025-05-09 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,407,891 121,545 1.31 5,966,767 -9.80 0.1079
2025-02-11 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,286,346 -33,944 -0.36 6,614,943 -32.49 0.1152
2024-11-13 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,320,290 326,320 3.63 9,797,862 3.65 0.1754
2024-08-13 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,993,970 63,729 0.71 9,452,932 9.98 0.1816
2024-05-10 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,930,241 91,956 1.04 8,595,268 10.73 0.1702
2024-03-11 2023-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 8,838,285 39,780 0.45 7,762,577 7.21 0.1696
2024-02-14 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,838,285 39,780 7,762,577 0.1474
2023-12-18 2023-09-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 8,798,505 -58,533 -0.66 7,240,818 13.78 0.1779
2023-11-14 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,798,505 -58,533 7,240,818 0.1779
2023-08-14 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,857,038 4,917 0.06 6,364,136 -12.50 0.1509
2023-07-14 2023-03-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 8,852,121 129,673 1.49 7,273,522 15.58 0.1852
2023-05-15 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,852,107 129,659 7,273,511 0.1852
2023-02-10 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,722,448 74,323 0.86 6,293,159 5.64 0.1714
2022-11-14 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,648,125 77,380 0.90 5,957,433 17.59 0.1752
2022-08-12 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,570,745 210,415 2.52 5,066,425 -13.23 0.1424
2022-05-13 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,360,330 201,815 2.47 5,839,023 13.33 0.1381
2022-02-14 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,158,515 87,234 1.08 5,152,265 5.48 0.1170
2021-11-12 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,071,281 101,621 1.28 4,884,577 9.73 0.1213
2021-08-13 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,969,660 -30,752 -0.38 4,451,374 17.60 0.1108
2021-05-14 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,000,412 69,192 0.87 3,785,316 -1.21 0.1024
2021-02-12 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,931,220 -57,008 -0.71 3,831,651 -14.31 0.1111
2020-11-16 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,988,228 143,233 1.83 4,471,650 -8.60 0.1480
2020-08-14 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,844,995 1,429,765 22.29 4,892,530 56.19 0.1735
2020-05-15 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,415,230 162,927 2.61 3,132,493 33.43 0.1335
2020-02-14 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,252,303 47,835 0.77 2,347,615 36.40 0.0801
2019-11-14 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,204,468 125,121 2.06 1,721,120 -9.55 0.0638
2019-08-14 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,079,347 54,247 0.90 1,902,835 -23.09 0.0716
2019-05-15 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,025,100 127,067 2.15 2,474,027 12.31 0.0971
2019-02-14 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,898,033 143,106 2.49 2,202,915 -5.26 0.0990
2018-12-13 2018-09-30 13F/A-2 REGENERON PHARMACEUTICALS COM 75886F107 5,754,927 75,868 1.34 2,325,220 18.68 0.0909
2018-11-23 2018-09-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 5,754,927 0 2,325,220 0.0909
2018-11-14 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,754,927 75,868 2,325,220
2018-08-14 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,679,059 71,435 1.27 1,959,218 1.46 0.0820
2018-05-15 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,607,624 113,573 2.07 1,931,041 -6.51 0.0844
2018-02-14 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,494,051 94,540 1.75 2,065,543 -14.44 0.0903
2017-11-14 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,399,511 129,053 2.45 2,414,229 -6.73 0.1128
2017-08-24 2017-06-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 5,270,458 148,962 2.91 2,588,533 30.43 0.1275
2017-08-11 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,270,458 148,962 2,588,533
2017-05-12 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,121,496 199,975 4.06 1,984,630 9.85 0.1020
2017-02-14 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,921,521 110,090 2.29 1,806,641 -6.60 0.1008
2016-11-14 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,811,431 32,245 0.67 1,934,291 15.89 0.1136
2016-08-10 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,779,186 92,467 1.97 1,669,035 -1.20 0.1037
2016-05-13 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,686,719 129,032 2.83 1,689,282 -31.72 0.1094
2016-02-08 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,557,687 131,565 2.97 2,474,232 20.18 0.1664
2015-11-12 2015-09-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 4,426,122 130,937 3.05 2,058,766 -6.04 0.0874
2015-11-12 2015-09-30 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 4,426,122 130,937 2,058,766 0.0874
2015-08-13 2015-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,295,185 108,784 2.60 2,191,102 15.93 0.1481
2015-05-15 2015-03-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 4,186,401 175,718 4.38 1,890,076 14.87 0.1282
2015-05-14 2015-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,186,401 1,890,076
2015-02-12 2014-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,010,683 151,130 3.92 1,645,383 18.25 0.1185
2014-11-12 2014-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,859,553 -54,150 -1.38 1,391,447 25.87 0.1085
2014-08-11 2014-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,913,703 -1,186 -0.03 1,105,504 -5.96 0.0871
2014-05-13 2014-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,914,889 129,159 3.41 1,175,563 12.82 0.0989
2014-02-12 2013-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,785,730 91,460 2.48 1,041,986 -9.85 0.0916
2013-11-07 2013-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,694,270 -583,340 -13.64 1,155,826 20.15 0.1129
2013-08-13 2013-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,277,610 4,277,610 961,949 0.1010
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.