Regeneron Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US75886F1075

SecurityREGN / Regeneron Pharmaceuticals, Inc.
InstitutionHowe & Rusling Inc
Latest Disclosed Ownership416 shares
Latest Disclosed Value $ 321,681
Howe & Rusling Inc reports 4.15% decrease in ownership of REGN / Regeneron Pharmaceuticals, Inc.

On April 28, 2026 - Howe & Rusling Inc filed a 13F-HR form disclosing ownership of 416 shares of Regeneron Pharmaceuticals, Inc. (US:REGN) valued at $321,418 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 14, 2026 disclosing 434 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of -4.15% during the quarter. The current value of the position is $257,483 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)
2026-04-28 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 416 -18 -4.15 322 -4.18 0.0210
2026-02-14 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 434 -243 -35.89 335 -11.84 0.0222
2025-11-05 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 677 56 9.02 381 16.56 0.0261
2025-08-12 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 621 60 10.70 326 -8.17 0.0241
2025-06-17 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 561 55 10.87 356 -1.39 0.0299
2025-02-12 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 506 44 9.52 360 -25.77 0.0310
2024-11-08 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 462 15 3.36 486 3.41 0.0418
2024-08-14 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 447 36 8.76 470 18.73 0.0428
2024-05-15 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 411 -43 -9.47 396 -0.75 0.0379
2024-02-06 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 454 9 2.02 399 8.74 0.0423
2023-11-09 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 445 7 1.60 366 16.56 0.0432
2023-08-14 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 438 0 0.00 315 -12.53 0.0352
2023-05-15 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 438 0 0.00 360 13.61 0.0429
2023-02-15 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 438 0 0.00 316 4.64 0.0396
2022-11-14 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 438 0 0.00 302 16.60 0.0401
2022-08-15 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 438 0 0.00 259 -15.36 0.0328
2022-05-10 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 438 0 0.00 306 10.47 0.0354
2022-02-14 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 438 -1 -0.23 277 4.14 0.0325
2021-11-15 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 439 1 0.23 266 8.57 0.0334
2021-08-13 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 438 0 0.00 245 18.36 0.0309
2021-05-13 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 438 175 66.54 207 62.99 0.0281
2021-02-08 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 263 0 0.00 127 -13.61 0.0193
2020-11-06 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 263 18 7.35 147 -3.92 0.0252
2020-07-15 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 245 0 0.00 153 27.50 0.0282
2020-05-14 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 245 0 0.00 120 30.43 0.0259
2020-02-05 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 245 245 92 0.0152
2019-02-04 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -25 -100.00 0 -100.00
2018-11-07 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 25 25 10 0.0017
2018-07-31 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -40 -100.00 0 -100.00
2018-05-14 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 40 35 700.00 14 600.00 0.0025
2018-01-24 2017-12-31 13F REGENERON PHARMACEUTICAL COM 75886F107 5 0 0.00 2 0.00 0.0004
2017-10-18 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5 -20 -80.00 2 -83.33 0.0004
2017-07-13 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 25 20 400.00 12 500.00 0.0024
2017-04-18 2017-03-31 13F REGENERON PHARMACEUTICAL COM 75886F107 5 0 0.00 2 0.00 0.0004
2017-01-20 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5 0 0.00 2 0.00 0.0004
2016-10-17 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5 0 0.00 2 0.00 0.0004
2016-08-23 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5 0 0.00 2 0.00 0.0004
2016-05-16 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5 0 0.00 2 -33.33 0.0005
2016-02-11 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5 0 0.00 3 50.00 0.0007
2015-11-10 2015-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5 0 0.00 2 -33.33 0.0005
2015-07-22 2015-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5 -106 -95.50 3 -90.91 0.0007
2014-05-07 2014-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 111 -624 -84.90 33 -83.66 0.0081
2014-02-07 2013-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 735 588 400.00 202 348.89 0.0122
2013-11-08 2013-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 147 0 0.00 45 36.36 0.0164
2013-08-14 2013-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 147 147 33 0.0092
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.