Regeneron Pharmaceuticals, Inc.
MX ˙ BMV ˙ US75886F1075
SecurityMX:REGN / Regeneron Pharmaceuticals, Inc.
InstitutionApriem Advisors
Latest Disclosed Ownership8,156 shares
Latest Disclosed Value $ 6,301,652
Apriem Advisors reports 4.99% decrease in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 14, 2026 - Apriem Advisors filed a 13F-HR form disclosing ownership of 8,156 shares of Regeneron Pharmaceuticals, Inc. (MX:REGN) valued at $6,301,652 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 8,584 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of -4.99% 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.

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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)
2026-05-14 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,156 -428 -4.99 6,302 -4.89 0.6014
2026-02-13 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,584 -64 -0.74 6,626 36.26 0.6081
2025-11-10 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 8,648 -469 -5.14 4,863 1.59 0.4600
2025-08-14 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,117 -3,319 -26.69 4,786 -39.32 0.5089
2025-05-15 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 12,436 -2,058 -14.20 7,887 -23.61 0.9241
2025-02-05 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 14,494 -1,033 -6.65 10,325 -36.75 1.1825
2024-11-14 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 15,527 -806 -4.93 16,323 -4.92 1.9065
2024-08-14 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 16,333 -4,390 -21.18 17,166 -13.93 2.1016
2024-05-15 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 20,723 -3,095 -12.99 19,946 -4.66 2.5058
2024-02-14 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 23,818 -1,099 -4.41 20,919 2.02 2.7948
2023-11-13 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 24,917 -685 -2.68 20,506 11.46 3.0048
2023-08-08 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 25,602 -505 -1.93 18,396 -14.24 2.7585
2023-05-12 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 26,107 -5,265 -16.78 21,451 -5.23 3.4321
2023-02-13 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 31,372 -876 -2.72 22,635 1.89 3.9226
2022-11-14 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 32,248 28 0.09 22,215 16.64 4.0051
2022-08-08 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 32,220 82 0.26 19,046 -15.15 3.2805
2022-05-10 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 32,138 386 1.22 22,446 11.94 3.2929
2022-02-09 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 31,752 31,752 20,052 2.8373
2017-08-04 2017-06-30 13F REGENERON PHARMS cs 75886F107 0 -25 -100.00 0 -100.00
2017-05-13 2017-03-31 13F REGENERON PHARMS cs 75886F107 25 0 0.00 10 11.11 0.0027
2017-02-14 2016-12-31 13F REGENERON PHARMS cs 75886F107 25 -20 -44.44 9 -50.00 0.0027
2016-11-14 2016-09-30 13F REGENERON PHARMS cs 75886F107 45 0 0.00 18 12.50 0.0054
2016-08-12 2016-06-30 13F REGENERON PHARMS cs 75886F107 45 0 0.00 16 0.00 0.0052
2016-05-13 2016-03-31 13F REGENERON PHARMS cs 75886F107 45 0 0.00 16 -33.33 0.0063
2016-02-09 2015-12-31 13F REGENERON PHARMS cs 75886F107 45 0 0.00 24 14.29 0.0086
2015-11-13 2015-09-30 13F REGENERON PHARMS cs 75886F107 45 0 0.00 21 -8.70 0.0078
2015-08-14 2015-06-30 13F REGENERON PHARMS cs 75886F107 45 20 80.00 23 109.09 0.0079
2015-05-07 2015-03-31 13F REGENERON PHARMS cs 75886F107 25 25 11 0.0038
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.