Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionEquitable Trust Co
Latest Disclosed Ownership556 shares
Latest Disclosed Value $ 429,588
Equitable Trust Co reports 5.90% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On April 30, 2026 - Equitable Trust Co filed a 13F-HR form disclosing ownership of 556 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $429,588 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 525 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 5.90% 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)
2026-04-30 2026-03-31 13F Regeneron Pharmaceuticals Com 75886F107 556 31 5.90 430 5.93 0.0117
2026-02-02 2025-12-31 13F Regeneron Pharmaceuticals Com 75886F107 525 0 0.00 405 37.29 0.0181
2025-11-10 2025-09-30 13F Regeneron Pharmaceuticals Com 75886F107 525 0 0.00 295 7.27 0.0136
2025-07-23 2025-06-30 13F Regeneron Pharmaceuticals Com 75886F107 525 0 0.00 276 -17.17 0.0137
2025-04-25 2025-03-31 13F Regeneron Pharmaceuticals Com 75886F107 525 0 0.00 333 -10.99 0.0184
2025-01-28 2024-12-31 13F Regeneron Pharmaceuticals Com 75886F107 525 0 0.00 374 -32.30 0.0209
2024-10-29 2024-09-30 13F Regeneron Pharmaceuticals Com 75886F107 525 -306 -36.82 552 -36.88 0.0354
2024-07-31 2024-06-30 13F Regeneron Pharmaceuticals Com 75886F107 831 831 873 0.0601
2023-02-21 2022-12-31 13F Regeneron Pharmaceuticals Com 75886F107 0 -645 -100.00 0 -100.00
2022-10-31 2022-09-30 13F Regeneron Pharmaceuticals Com 75886F107 645 0 0.00 445 16.80 0.0371
2022-07-15 2022-06-30 13F Regeneron Pharmaceuticals Com 75886F107 645 0 0.00 381 -15.52 0.0284
2022-05-06 2022-03-31 13F Regeneron Pharmaceuticals Com 75886F107 645 0 0.00 451 10.54 0.0290
2022-01-31 2021-12-31 13F Regeneron Pharmaceuticals Com 75886F107 645 -750 -53.76 408 -51.66 0.0252
2021-10-26 2021-09-30 13F Regeneron Pharmaceuticals Com 75886F107 1,395 -106 -7.06 844 0.72 0.0539
2021-08-03 2021-06-30 13F Regeneron Pharmaceuticals Com 75886F107 1,501 -262 -14.86 838 0.48 0.0537
2021-05-14 2021-03-31 13F Regeneron Pharmaceuticals Com 75886F107 1,763 -8,589 -82.97 834 -83.32 0.0621
2021-02-12 2020-12-31 13F Regeneron Pharmaceuticals Com 75886F107 10,352 -311 -2.92 5,001 -16.20 0.3713
2020-11-13 2020-09-30 13F Regeneron Pharmaceuticals Com 75886F107 10,663 -353 -3.20 5,968 -13.13 0.5081
2020-08-18 2020-06-30 13F Regeneron Pharmaceuticals Com 75886F107 11,016 -336 -2.96 6,870 23.94 0.6318
2020-05-21 2020-03-31 13F Regeneron Pharmaceuticals Com 75886F107 11,352 513 4.73 5,543 36.19 0.6092
2020-02-18 2019-12-31 13F Regeneron Pharmaceuticals Com 75886F107 10,839 933 9.42 4,070 48.11 0.3976
2019-11-19 2019-09-30 13F Regeneron Pharmaceuticals Com 75886F107 9,906 441 4.66 2,748 -7.22 0.2895
2019-08-16 2019-06-30 13F Regeneron Pharmaceuticals Com 75886F107 9,465 1,255 15.29 2,962 -12.13 0.3144
2019-05-15 2019-03-31 13F Regeneron Pharmaceuticals Com 75886F107 8,210 -120 -1.44 3,371 8.32 0.3893
2019-02-22 2018-12-31 13F Regeneron Pharmaceuticals Com 75886F107 8,330 246 3.04 3,112 -4.72 0.4118
2018-11-15 2018-09-30 13F Regeneron Pharmaceuticals Com 75886F107 8,084 -111 -1.35 3,266 15.53 0.3805
2018-08-14 2018-06-30 13F Regeneron Pharmaceuticals Com 75886F107 8,195 8,195 2,827 0.3580
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.