Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionDimensional Fund Advisors Lp
Dimensional Fund Advisors Lp ownership in REGN / Regeneron Pharmaceuticals, Inc.
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)
2000-02-03 2000-02-03 13G
1999-02-11 1999-02-11 13G

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)
2026-05-07 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 513,060 13,516 2.71 396,293 2.78 0.0177
2026-02-12 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 499,544 448 0.09 385,591 37.41 0.0809
2025-11-12 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 499,096 -20,341 -3.92 280,616 2.91 0.0602
2025-08-12 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 519,437 -51,750 -9.06 272,690 -24.73 0.0631
2025-05-13 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 571,187 -15,838 -2.70 362,268 -13.36 0.0900
2025-02-13 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 587,025 16,961 2.98 418,113 -30.23 0.1004
2024-11-07 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 570,064 -16,498 -2.81 599,245 -2.80 0.1453
2024-08-09 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 586,562 -2,391 -0.41 616,498 8.76 0.1610
2024-05-10 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 588,953 -4,569 -0.77 566,861 8.74 0.1535
2024-02-07 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 593,522 -25,744 -4.16 521,298 2.28 0.1522
2023-11-09 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 619,266 6,442 1.05 509,688 15.76 0.1672
2023-08-09 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 612,824 -20,684 -3.26 440,292 -15.41 0.1403
2023-05-12 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 633,508 -1,080 -0.17 520,490 113,792.56 0.1753
2023-02-09 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 634,588 -15,819 -2.43 458 -99.90 0.1353
2022-11-10 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 650,407 18,501 2.93 448,075 19.95 0.1720
2022-08-12 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 631,906 46,757 7.99 373,553 -8.59 0.1340
2022-05-13 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 585,149 82,651 16.45 408,643 28.75 0.1259
2022-02-09 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 502,498 98,968 24.53 317,402 29.96 0.0960
2021-11-12 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 403,530 83,276 26.00 244,230 36.59 0.0787
2021-08-12 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 320,254 70,107 28.03 178,808 51.08 0.0566
2021-05-14 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 250,147 13,304 5.62 118,353 3.44 0.0391
2021-03-08 2020-12-31 13F/A-2 REGENERON PHARMACEUTICALS COM 75886F107 236,843 11,978 5.33 114,415 -9.13 0.0413
2021-02-11 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 236,843 11,978 114,415 41,320.6165
2020-11-12 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 224,865 8,460 3.91 125,909 -6.68 0.0534
2020-08-13 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 216,405 7,195 3.44 134,921 32.17 0.0593
2020-05-14 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 209,210 2,510 1.21 102,082 31.53 0.0532
2020-02-14 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 206,700 -2,192 -1.05 77,609 33.95 0.0283
2019-11-12 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 208,892 12,301 6.26 57,940 -5.83 0.0225
2019-08-13 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 196,591 16,960 9.44 61,530 -16.57 0.0239
2019-08-12 2019-03-31 13F/A-2 REGENERON PHARMACEUTICALS COM 75886F107 179,631 -3,806 -2.07 73,753 7.67 0.0294
2019-05-10 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 179,631 -3,806 73,753
2019-02-26 2018-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 183,437 5,971 3.36 68,499 -4.47 0.0310
2019-02-13 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 183,437 5,971 68,499
2018-11-13 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 177,466 5,605 3.26 71,706 20.95 0.0273
2018-08-10 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 171,861 2,191 1.29 59,287 1.47 0.0236
2018-05-11 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 169,670 2,053 1.22 58,428 -7.29 0.0244
2018-02-12 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 167,617 6,126 3.79 63,025 -12.70 0.0261
2017-11-13 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 161,491 633 0.39 72,193 -8.65 0.0315
2017-08-11 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 160,858 1,564 0.98 79,025 28.03 0.0365
2017-05-12 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 159,294 4,039 2.60 61,725 8.29 0.0295
2017-02-09 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 155,255 -900 -0.58 57,001 -9.21 0.0285
2016-11-10 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 156,155 14,767 10.44 62,783 27.15 0.0339
2016-08-09 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 141,388 415 0.29 49,377 -2.82 0.0284
2016-05-13 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 140,973 4,526 3.32 50,811 -31.41 0.0304
2016-02-10 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 136,447 7,316 5.67 74,078 23.35 0.0462
2015-11-13 2015-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 129,131 1,926 1.51 60,056 -7.45 0.0394
2015-08-14 2015-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 127,205 5,032 4.12 64,890 17.64 0.0397
2015-05-14 2015-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 122,173 1,008 0.83 55,161 10.97 0.0348
2015-02-06 2014-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 121,165 6,226 5.42 49,708 19.97 0.0326
2014-11-13 2014-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 114,939 -14,276 -11.05 41,434 13.54 0.0294
2014-08-08 2014-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 129,215 906 0.71 36,494 -5.31 0.0254
2014-05-14 2014-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 128,309 847 0.66 38,540 9.85 0.0288
2014-02-12 2013-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 127,462 -300 -0.23 35,085 -12.21 0.0273
2013-11-13 2013-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 127,762 1,006 0.79 39,964 40.16 0.0346
2013-08-15 2013-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 126,756 126,756 28,514 0.0269
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.