Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionGotham Asset Management, LLC
ManagerJoel Greenblatt
Latest Disclosed Ownership82,846 shares
Latest Disclosed Value $ 64,010,133
Gotham Asset Management, LLC reports 3.21% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 15, 2026 - Gotham Asset Management, LLC filed a 13F-HR form disclosing ownership of 82,846 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $64,010,133 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 80,271 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 3.21% 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)
2026-05-15 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 82,846 2,575 3.21 64,010 3.31 0.1960
2026-02-17 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 80,271 -3,959 -4.70 61,959 30.82 0.2262
2025-11-14 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 84,230 57,225 211.91 47,360 234.06 0.2062
2025-08-14 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 27,005 -5,042 -15.73 14,178 -30.25 0.0848
2025-05-15 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 32,047 20,624 180.55 20,325 149.82 0.1696
2025-02-14 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 11,423 5,796 103.00 8,137 37.55 0.0771
2024-11-14 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,627 -73 -1.28 5,915 -1.25 0.0612
2024-08-14 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,700 2,345 69.90 5,991 85.51 0.0776
2024-05-15 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,355 206 6.54 3,229 16.78 0.0488
2024-02-14 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,149 -98 -3.02 2,766 3.48 0.0513
2023-11-14 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,247 -6,606 -67.05 2,672 -62.25 0.0552
2023-08-14 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,853 5,897 149.06 7,080 117.82 0.1540
2023-05-15 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,956 -228 -5.45 3,251 7.69 0.0788
2023-02-14 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,184 -1,386 -24.88 3,019 -21.34 0.0850
2022-11-14 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,570 -8,660 -60.86 3,837 -54.39 0.1149
2022-08-15 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 14,230 -870 -5.76 8,412 -20.24 0.2702
2022-05-16 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 15,100 -8,564 -36.19 10,546 -29.43 0.3265
2022-02-14 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 23,664 18,261 337.98 14,944 357.00 0.4821
2021-11-15 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,403 1,871 52.97 3,270 65.74 0.1326
2021-08-16 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,532 267 8.18 1,973 27.70 0.0836
2021-05-17 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,265 -778 -19.24 1,545 -20.89 0.0689
2021-02-16 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,043 -8,786 -68.49 1,953 -72.80 0.0646
2020-11-16 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 12,829 8,581 202.00 7,181 171.08 0.2306
2020-08-13 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,248 -668 -13.59 2,649 10.38 0.0793
2020-05-15 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,916 3,184 183.83 2,400 269.23 0.0666
2020-02-14 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,732 -3,681 -68.00 650 -56.72 0.0119
2019-11-14 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,413 -28,527 -84.05 1,502 -85.86 0.0265
2019-08-14 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 33,940 18,900 125.66 10,623 72.00 0.1695
2019-05-15 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 15,040 3,954 35.67 6,176 49.14 0.0905
2019-02-14 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 11,086 -910 -7.59 4,141 -14.57 0.0643
2018-11-14 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 11,996 -10,026 -45.53 4,847 -36.20 0.0669
2018-08-14 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 22,022 17,972 443.75 7,597 444.59 0.1098
2018-05-15 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,050 -109 -2.62 1,395 -10.81 0.0195
2018-02-14 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,159 -30,016 -87.83 1,564 -89.76 0.0227
2017-11-14 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 34,175 34,175 15,280 0.2243
2017-05-15 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -12,096 -100.00 0 -100.00
2017-02-14 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 12,096 -12,649 -51.12 4,440 -55.37 0.0572
2016-11-14 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 24,745 -5,406 -17.93 9,948 -5.53 0.1295
2016-08-15 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 30,151 27,626 1,094.10 10,530 1,057.14 0.1262
2016-05-16 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,525 -1,632 -39.26 910 -59.68 0.0102
2016-02-16 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,157 4,157 0.00 2,257 0.0245
2015-02-17 2014-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -1,410 -100.00 0 -100.00
2014-11-14 2014-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,410 529 60.05 508 104.02 0.0051
2014-08-14 2014-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 881 881 -73.18 249 -75.78 0.0031
2014-02-14 2013-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -3,285 -100.00 0 -100.00
2013-11-14 2013-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,285 3,285 1,028 0.0334
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.