Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionDaiwa Securities Group Inc.
Latest Disclosed Ownership36,525 shares
Latest Disclosed Value $ 28,220,676
Daiwa Securities Group Inc. reports 22.69% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 13, 2026 - Daiwa Securities Group Inc. filed a 13F-HR form disclosing ownership of 36,525 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $28,220,676 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 29,771 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 22.69% 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)
2026-05-13 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 36,525 6,754 22.69 28,221 128,172.73 0.0476
2026-02-10 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 29,771 -2,058 -6.47 23 29.41 0.0734
2025-11-14 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 31,829 7,500 30.83 18 41.67 0.0604
2025-08-14 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 24,329 761 3.23 13 -14.29 0.0471
2025-05-13 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 23,568 1,906 8.80 15 -6.67 0.0632
2025-02-07 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 21,662 1,278 6.27 15 -28.57 0.0689
2024-11-12 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 20,384 2,234 12.31 21 10.53 0.0990
2024-08-07 2024-06-30 13F REGENERON COM 75886F107 18,150 949 5.52 19 18.75 0.1015
2024-05-02 2024-03-31 13F REGENERON COM 75886F107 17,201 2,115 14.02 17 23.08 0.0934
2024-01-31 2023-12-31 13F REGENERON COM 75886F107 15,086 -13,330 -46.91 13 18.18 0.0824
2023-11-01 2023-09-30 13F REGENERON COM 75886F107 28,416 15,736 124.10 12 22.22 0.0848
2023-07-31 2023-06-30 13F REGENERON COM 75886F107 12,680 21 0.17 9 -10.00 0.0602
2023-05-02 2023-03-31 13F REGENERON COM 75886F107 12,659 634 5.27 10 25.00 0.0723
2023-02-06 2022-12-31 13F REGENERON COM 75886F107 12,025 359 3.08 9 -99.90 0.0666
2022-11-02 2022-09-30 13F REGENERON COM 75886F107 11,666 667 6.06 8,036 19.64 0.0668
2022-08-09 2022-06-30 13F REGENERON COM 75886F107 10,999 -9,737 -46.96 6,717 -53.62 0.0513
2022-04-29 2022-03-31 13F REGENERON COM 75886F107 20,736 -16,980 -45.02 14,482 125.72 0.0670
2022-04-29 2022-03-31 13F REGENERON COM 75886F107 31,104 7,581
2022-02-03 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 37,716 19,310 104.91 6,416 3.53 0.0377
2021-11-05 2021-09-30 13F REGENERON COM 75886F107 18,406 10,526 133.58 6,197 40.81 0.0407
2021-08-06 2021-06-30 13F REGENERON COM 75886F107 7,880 238 3.11 4,401 21.71 0.0296
2021-05-03 2021-03-31 13F REGENERON COM 75886F107 7,642 826 12.12 3,616 9.81 0.0269
2021-02-04 2020-12-31 13F REGENERON COM 75886F107 6,816 359 5.56 3,293 -8.88 0.0255
2020-11-02 2020-09-30 13F REGENERON COM 75886F107 6,457 -999 -13.40 3,614 67.24 0.0327
2020-08-11 2020-06-30 13F REGENERON COM 75886F107 7,456 0 0.00 2,161 -40.63 0.0456
2020-05-14 2020-03-31 13F REGENERON COM 75886F107 7,456 -1,507 -16.81 3,640 8.14 0.0378
2020-01-31 2019-12-31 13F REGENERON COM 75886F107 8,963 -135 -1.48 3,366 33.41 0.0278
2019-11-04 2019-09-30 13F REGENERON COM 75886F107 9,098 1,881 26.06 2,523 11.69 0.0214
2019-07-24 2019-06-30 13F REGENERON COM 75886F107 7,217 222 3.17 2,259 -21.34 0.0200
2019-04-26 2019-03-31 13F REGENERON COM 75886F107 6,995 -2,373 -25.33 2,872 -33.53 0.0251
2019-02-05 2018-12-31 13F REGENERON COM 75886F107 9,368 -2,490 -21.00 4,321 -9.81 0.0415
2018-11-01 2018-09-30 13F REGENERON COM 75886F107 11,858 -2,070 -14.86 4,791 -5.09 0.0401
2018-07-30 2018-06-30 13F REGENERON COM 75886F107 13,928 1,075 8.36 5,048 8.98 0.0398
2018-05-02 2018-03-31 13F REGENERON COM 75886F107 12,853 9,433 275.82 4,632 260.19 0.0371
2018-02-06 2017-12-31 13F REGENERON COM 75886F107 3,420 -11,942 -77.74 1,286 -81.28 0.0091
2017-11-02 2017-09-30 13F REGENERON COM 75886F107 15,362 -1,295 -7.77 6,868 -16.04 0.0470
2017-07-28 2017-06-30 13F REGENERON COM 75886F107 16,657 -1,002 -5.67 8,180 19.56 0.0529
2017-05-02 2017-03-31 13F REGENERON COM 75886F107 17,659 11,486 186.07 6,842 202.08 0.0430
2017-02-01 2016-12-31 13F REGENERON COM 75886F107 6,173 -3,910 -38.78 2,265 -44.12 0.0145
2017-01-10 2016-09-30 13F/A-1 REGENERON COM 75886F107 10,083 2,183 27.63 4,053 46.90 0.0242
2016-11-04 2016-09-30 13F REGENERON COM 75886F107 10,083 4,053
2016-07-25 2016-06-30 13F REGENERON COM 75886F107 7,900 -7,975 -50.24 2,759 -51.77 0.0165
2016-05-12 2016-03-31 13F REGENERON COM 75886F107 15,875 2,320 17.12 5,721 -22.26 0.0361
2016-02-04 2015-12-31 13F REGENERON COM 75886F107 13,555 -5,675 -29.51 7,359 -17.72 0.0487
2015-11-10 2015-09-30 13F REGENERON COM 75886F107 19,230 -640 -3.22 8,944 -11.76 0.0636
2015-08-05 2015-06-30 13F REGENERON COM 75886F107 19,870 2,440 14.00 10,136 28.81 0.0720
2015-05-12 2015-03-31 13F REGENERON COM 75886F107 17,430 3,630 26.30 7,869 39.00 0.0526
2015-02-13 2014-12-31 13F REGENERON COM 75886F107 13,800 10,630 335.33 5,661 395.28 0.0400
2014-11-12 2014-09-30 13F REGENERON COM 75886F107 3,170 1,070 50.95 1,143 92.75 0.0087
2014-08-13 2014-06-30 13F/A-1 REGENERON COM 75886F107 2,100 -100 -4.55 593 -10.29 0.0044
2014-08-13 2014-06-30 13F REGENERON COM 75886F107 2,100 593
2014-05-14 2014-03-31 13F/A-1 REGENERON COM 75886F107 2,200 0 661 0.0052
2014-05-15 2014-03-31 13F/A-2 REGENERON COM 75886F107 2,200 0 0.00 661 9.08 0.0052
2014-05-13 2014-03-31 13F REGENERON COM 75886F107 2,200 661
2014-02-13 2013-12-31 13F REGENERON COM 75886F107 2,200 0 0.00 606 -11.92 0.0051
2013-11-14 2013-09-30 13F REGENERON COM 75886F107 2,200 0 0.00 688 38.99 0.0055
2013-08-16 2013-06-30 13F/A-1 REGENERON COM 75886F107 2,200 2,200 495 0.0038
2013-08-13 2013-06-30 13F REGENERON COM 75886F107 2,200 495
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.