Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionIntrust Bank Na
Latest Disclosed Ownership623 shares
Latest Disclosed Value $ 481,354
Intrust Bank Na reports 42.89% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 6, 2026 - Intrust Bank Na filed a 13F-HR form disclosing ownership of 623 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $481,354 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 436 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 42.89% 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)
2026-05-06 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 623 187 42.89 481 43.15 0.0206
2026-02-06 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 436 19 4.56 337 43.59 0.0279
2025-11-10 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 417 -272 -39.48 234 -35.18 0.0195
2025-08-11 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 689 -644 -48.31 362 -57.28 0.0321
2025-05-09 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,333 0 0.00 845 -10.96 0.0836
2025-02-12 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,333 -282 -17.46 950 -44.08 0.0963
2024-11-12 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,615 3 0.19 1,698 0.18 0.1698
2024-08-08 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,612 -34 -2.07 1,694 6.94 0.1802
2024-05-09 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,646 -27 -1.61 1,584 7.83 0.1697
2024-02-05 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,673 53 3.27 1,469 10.20 0.1705
2023-11-13 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,620 -28 -1.70 1,333 12.58 0.1700
2023-08-10 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,648 8 0.49 1,184 -12.10 0.1436
2023-05-04 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,640 108 7.05 1,348 21.90 0.1726
2023-02-10 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,532 107 7.51 1,105 12.53 0.1533
2022-11-09 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,425 172 13.73 982 32.52 0.1514
2022-08-16 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,253 1,210 2,813.95 741 2,370.00 0.1071
2022-05-10 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 43 -973 -95.77 30 -95.32 0.0026
2022-05-10 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,239 865
2022-02-03 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,016 20 2.01 641 6.30 0.0771
2021-11-04 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 996 110 12.42 603 21.82 0.0799
2021-08-05 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 886 147 19.89 495 41.43 0.0668
2021-06-02 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 739 303 69.50 350 65.88 0.0504
2021-02-10 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 436 65 17.52 211 1.44 0.0320
2020-11-05 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 371 371 208 0.0370
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.