Regeneron Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US75886F1075

SecurityREGN / Regeneron Pharmaceuticals, Inc.
InstitutionAIA Group Ltd
Latest Disclosed Ownership8,460 shares
Latest Disclosed Value $ 6,536,534
AIA Group Ltd reports 14.20% increase in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On May 6, 2026 - AIA Group Ltd filed a 13F-HR form disclosing ownership of 8,460 shares of Regeneron Pharmaceuticals, Inc. (US:REGN) valued at $6,536,534 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 7,408 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 14.20% during the quarter. The current value of the position is $5,236,317 USD.

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)
2026-05-06 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,460 1,052 14.20 6,537 14.31 0.0644
2026-02-09 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,408 -9,779 -56.90 5,718 -40.83 0.0856
2025-12-18 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 17,187 -70 -0.41 9,664 6.67 0.1708
2025-08-06 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 17,257 1,164 7.23 9,060 -11.24 0.1970
2025-05-12 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 16,093 2,493 18.33 10,207 5.36 0.2507
2025-02-12 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 13,600 2,959 27.81 9,688 -13.40 0.2340
2024-10-31 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,641 621 6.20 11,186 6.22 0.2887
2024-07-31 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,020 3,132 45.47 10,531 58.86 0.3080
2024-05-06 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 6,888 2,166 45.87 6,630 59.85 0.2164
2024-01-31 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,722 565 13.59 4,147 21.22 0.1701
2023-11-01 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,157 -554 -11.76 3,421 1.06 0.1670
2023-07-28 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,711 1,077 29.64 3,385 13.40 0.1639
2023-04-28 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,634 -2,324 -39.01 2,986 -30.55 0.1619
2023-01-31 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,958 -722 -10.81 4,299 -6.61 0.2620
2022-11-04 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,680 1,601 31.52 4,602 53.30 0.3013
2022-08-11 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,079 1,845 57.05 3,002 32.89 0.1612
2022-05-06 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,234 1,439 80.17 2,259 99.21 0.0792
2022-02-11 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,795 696 63.33 1,134 70.53 0.0536
2021-11-05 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,099 385 53.92 665 59.09 0.0376
2021-08-03 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 714 -804 -52.96 418 -41.78 0.0287
2021-05-14 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,518 295 24.12 718 19.47 0.1037
2021-02-12 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,223 1,223 601 0.0692
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.