Regeneron Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US75886F1075

SecurityREGN / Regeneron Pharmaceuticals, Inc.
InstitutionCreative Planning
Latest Disclosed Ownership40,152 shares
Latest Disclosed Value $ 31,022,975
Creative Planning ownership in REGN / Regeneron Pharmaceuticals, Inc.

On May 12, 2026 - Creative Planning filed a 13F-HR form disclosing ownership of 40,152 shares of Regeneron Pharmaceuticals, Inc. (US:REGN) valued at $31,023,041 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 30,134 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of 33.24% during the quarter. The current value of the position is $24,852,080 USD.

Creative Planning has a history of taking positions in derivatives of the underlying security (REGN) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

REGN / Regeneron Pharmaceuticals, Inc. Historical Put/Call Ratio
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)
2026-05-12 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 40,152 10,018 33.24 31,023 33.38 0.0210
2026-02-17 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 30,134 10,195 51.13 23,260 107.47 0.0166
2025-11-14 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 19,939 10,454 110.22 11,211 125.17 0.0086
2025-08-08 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,485 -1,882 -16.56 4,980 -30.92 0.0043
2025-05-15 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 11,367 1,209 11.90 7,209 -0.37 0.0068
2025-02-14 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 10,158 -1,635 -13.86 7,236 -41.64 0.0070
2024-10-11 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 11,793 2,178 22.65 12,397 22.67 0.0123
2024-08-15 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 9,615 991 11.49 10,106 21.76 0.0108
2024-05-13 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 8,624 1,535 21.65 8,301 33.31 0.0092
2024-02-14 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 7,089 421 6.31 6,226 13.47 0.0115
2023-11-16 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,668 551 9.01 5,487 24.85 0.0073
2023-07-21 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 6,117 350 6.07 4,395 -7.24 0.0059
2023-05-15 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,767 645 12.59 4,738 28.23 0.0068
2023-02-10 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,122 731 16.65 3,696 22.15 0.0056
2022-11-03 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,391 467 11.90 3,025 30.39 0.0052
2022-08-15 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,924 1,225 45.39 2,320 23.08 0.0038
2022-05-16 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,699 -25 -0.92 1,885 9.59 0.0029
2022-02-11 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,724 270 11.00 1,720 15.82 0.0028
2021-11-10 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,454 -535 -17.90 1,485 -11.02 0.0026
2021-08-04 2021-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,989 -3,317 -52.60 1,669 -44.05 0.0030
2021-04-30 2021-03-31 13F CreativePlanning COM 75886F107 6,306 1,401 28.56 2,983 25.92 0.0060
2021-01-29 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,905 591 13.70 2,369 -1.90 0.0052
2020-11-05 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,314 605 16.31 2,415 4.41 0.0063
2020-07-23 2020-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,709 -433 -10.45 2,313 14.39 0.0067
2020-05-05 2020-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,142 -1,489 -26.44 2,022 -4.35 0.0072
2020-01-30 2019-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 5,631 -6,578 -53.88 2,114 -37.58 0.0063
2019-11-01 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 12,209 201 1.67 3,387 -9.90 0.0110
2019-07-26 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 12,008 8,529 245.16 3,759 163.05 0.0126
2019-04-24 2019-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,479 -49 -1.39 1,429 8.42 0.0051
2019-02-12 2018-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 3,528 -950 -21.21 1,318 -27.14 0.0054
2019-02-01 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 3,528 -950 1,318
2018-10-25 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 4,478 -5,917 -56.92 1,809 -49.55 0.0067
2018-07-20 2018-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 10,395 1,238 13.52 3,586 13.73 0.0141
2018-04-18 2018-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,157 -1,639 -15.18 3,153 -22.32 0.0128
2018-01-17 2017-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 10,796 -5,451 -33.55 4,059 -44.12 0.0175
2017-10-17 2017-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 16,247 2,542 18.55 7,264 7.92 0.0337
2017-07-12 2017-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 13,705 -4,910 -26.38 6,731 -6.68 0.0341
2017-04-07 2017-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 18,615 2,596 16.21 7,213 22.67 0.0394
2017-01-09 2016-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 16,019 -1,741 -9.80 5,880 -17.65 0.0358
2016-10-12 2016-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 17,760 3,026 20.54 7,140 38.75 0.0455
2016-07-12 2016-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 14,734 4,135 39.01 5,146 34.71 0.0373
2016-04-08 2016-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 10,599 7,992 306.56 3,820 169.96 0.0298
2016-01-11 2015-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 2,607 -581 -18.22 1,415 -4.59 0.0116
2015-10-09 2015-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 3,188 3,188 0.00 1,483 0.0131
2015-07-09 2015-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -1,989 -100.00 0 -100.00
2015-04-13 2015-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,989 1,989 0.00 898 0.0084
2015-01-29 2014-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -2,486 -100.00 0 -100.00
2014-10-10 2014-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,486 815 48.77 896 89.83 0.0104
2014-08-20 2014-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,671 236 16.45 472 9.51 0.0061
2014-04-11 2014-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,435 110 8.30 431 18.08 0.0065
2014-01-06 2013-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 1,325 -61 -4.40 365 -15.90 0.0062
2013-10-10 2013-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 1,386 656 89.86 434 164.63 0.0086
2013-07-09 2013-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 730 730 164 0.0038
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2020-11-05 2020-09-30 13F REGENERON PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-07-23 2020-06-30 13F REGENERON PHARMACEUTICALS COM Call 100 10 n/a n/a n/a
2017-10-17 2017-09-30 13F REGENERON PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-07-12 2017-06-30 13F REGENERON PHARMACEUTICALS COM Call 7,000 123 n/a n/a n/a
2017-01-09 2016-12-31 13F REGENERON PHARMACEUTICALS COM Call 0 -100.00 0 n/a n/a n/a
2016-10-12 2016-09-30 13F REGENERON PHARMACEUTICALS COM Call 800 300.00 0 -100.00 n/a n/a n/a
2016-07-12 2016-06-30 13F REGENERON PHARMACEUTICALS COM Call 200 4 n/a n/a n/a
2016-04-08 2016-03-31 13F REGENERON PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-01-11 2015-12-31 13F REGENERON PHARMACEUTICALS COM Call 300 50.00 2 -50.00 n/a n/a n/a
2015-10-09 2015-09-30 13F REGENERON PHARMACEUTICALS COM Call 200 4 n/a n/a n/a
2015-07-09 2015-06-30 13F REGENERON PHARMACEUTICALS COM Call 0 -100.00 0 n/a n/a n/a
2015-04-13 2015-03-31 13F REGENERON PHARMACEUTICALS COM Call 200 0 n/a n/a n/a
2015-01-29 2014-12-31 13F REGENERON PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2014-10-10 2014-09-30 13F REGENERON PHARMACEUTICALS COM Call 100 0.00 10 100.00 n/a n/a n/a
2014-08-20 2014-06-30 13F REGENERON PHARMACEUTICALS COM Call 100 -85.71 5 -37.50 n/a n/a n/a
2014-04-11 2014-03-31 13F REGENERON PHARMACEUTICALS COM Call 700 8 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2017-01-09 2016-12-31 13F REGENERON PHARMACEUTICALS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-10-12 2016-09-30 13F REGENERON PHARMACEUTICALS COM Put 400 300.00 8 166.67 n/a n/a n/a
2016-07-12 2016-06-30 13F REGENERON PHARMACEUTICALS COM Put 100 -50.00 3 -25.00 n/a n/a n/a
2016-04-08 2016-03-31 13F REGENERON PHARMACEUTICALS COM Put 200 4 n/a n/a n/a
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.