Regeneron Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US75886F1075

SecurityREGN / Regeneron Pharmaceuticals, Inc.
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership83,358 shares
Latest Disclosed Value $ 64,405,725
Qube Research & Technologies Ltd ownership in REGN / Regeneron Pharmaceuticals, Inc.

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 83,358 shares of Regeneron Pharmaceuticals, Inc. (US:REGN) valued at $64,405,725 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 142,183 shares of Regeneron Pharmaceuticals, Inc.. This represents a change in shares of -41.37% during the quarter. The current value of the position is $51,594,434 USD.

Qube Research & Technologies Ltd 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 8,400 of underlying shares valued at $6,490,176 USD and put options representing 7,000 of underlying shares valued at $5,408,480 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)
2026-05-15 2026-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 83,358 -58,825 -41.37 64,406 -41.31 0.0716
2026-02-17 2025-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 142,183 -406,551 -74.09 109,747 -64.43 0.1115
2025-11-14 2025-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 548,734 -77,246 -12.34 308,537 -6.12 0.3188
2025-08-14 2025-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 625,980 -76,912 -10.94 328,640 -26.28 0.3339
2025-05-15 2025-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 702,892 261,238 59.15 445,795 41.70 0.5171
2025-02-14 2024-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 441,654 289,685 190.62 314,603 96.93 0.4125
2024-11-14 2024-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 151,969 -41,979 -21.64 159,756 -21.63 0.2355
2024-08-14 2024-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 193,948 38,100 24.45 203,845 35.89 0.3222
2024-05-14 2024-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 155,848 -15,516 -9.05 150,002 -0.34 0.2378
2024-02-13 2023-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 171,364 165,621 2,883.88 150,507 3,084.66 0.2930
2023-11-13 2023-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,743 5,743 4,726 0.0123
2023-08-14 2023-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -4,519 -100.00 0 -100.00
2023-05-15 2023-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 4,519 -102,160 -95.76 3,713 -95.18 0.0160
2023-02-14 2022-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 106,679 98,996 1,288.51 76,968 1,354.13 0.4120
2022-11-14 2022-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 7,683 -75,067 -90.72 5,293 -89.18 0.0315
2022-08-15 2022-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 82,750 73,120 759.29 48,916 627.27 0.3608
2022-05-09 2022-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 9,630 -11,030 -53.39 6,726 -48.45 0.0570
2022-02-10 2021-12-31 13F/A-1 REGENERON PHARMACEUTICALS COM 75886F107 20,660 -15,985 -43.62 13,047 -41.17 0.1007
2022-02-01 2021-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 20,660 -15,985 13,047 0.1008
2021-11-12 2021-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 36,645 36,645 22,177 0.2782
2021-05-14 2021-03-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -26,622 -100.00 0 -100.00
2021-02-16 2020-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 26,622 3,152 13.43 12,861 -2.11 0.1829
2020-11-12 2020-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 23,470 23,470 13,138 0.1875
2019-11-13 2019-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -5,766 -100.00 0 -100.00
2019-08-02 2019-06-30 13F REGENERON PHARMACEUTICALS COM 75886F107 5,766 5,766 1,805 0.4297
2019-02-14 2018-12-31 13F REGENERON PHARMACEUTICALS COM 75886F107 0 -2,756 -100.00 0 -100.00
2018-11-14 2018-09-30 13F REGENERON PHARMACEUTICALS COM 75886F107 2,756 2,756 1,114 0.1481
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
(%)
2026-05-15 2026-03-31 13F REGENERON PHARMACEUTICALS COM Call 8,400 -71.03 6,490 -71.01 n/a n/a n/a
2026-02-17 2025-12-31 13F REGENERON PHARMACEUTICALS COM Call 29,000 -33.94 22,384 -9.31 n/a n/a n/a
2025-11-14 2025-09-30 13F REGENERON PHARMACEUTICALS COM Call 43,900 10.58 24,684 18.43 n/a n/a n/a
2025-08-14 2025-06-30 13F REGENERON PHARMACEUTICALS COM Call 39,700 402.53 20,842 316.01 n/a n/a n/a
2025-05-15 2025-03-31 13F REGENERON PHARMACEUTICALS COM Call 7,900 216.00 5,010 181.46 n/a n/a n/a
2025-02-14 2024-12-31 13F REGENERON PHARMACEUTICALS COM Call 2,500 1,781 n/a n/a n/a
2024-08-14 2024-06-30 13F REGENERON PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-14 2024-03-31 13F REGENERON PHARMACEUTICALS COM Call 2,600 2,502 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
(%)
2026-05-15 2026-03-31 13F REGENERON PHARMACEUTICALS COM Put 7,000 -71.66 5,408 -71.63 n/a n/a n/a
2026-02-17 2025-12-31 13F REGENERON PHARMACEUTICALS COM Put 24,700 -42.56 19,065 -21.14 n/a n/a n/a
2025-11-14 2025-09-30 13F REGENERON PHARMACEUTICALS COM Put 43,000 -0.23 24,178 6.85 n/a n/a n/a
2025-08-14 2025-06-30 13F REGENERON PHARMACEUTICALS COM Put 43,100 -21.78 22,628 -35.25 n/a n/a n/a
2025-05-15 2025-03-31 13F REGENERON PHARMACEUTICALS COM Put 55,100 122.18 34,946 97.83 n/a n/a n/a
2025-02-14 2024-12-31 13F REGENERON PHARMACEUTICALS COM Put 24,800 327.59 17,666 189.73 n/a n/a n/a
2024-11-14 2024-09-30 13F REGENERON PHARMACEUTICALS COM Put 5,800 -69.95 6,097 -69.94 n/a n/a n/a
2024-08-14 2024-06-30 13F REGENERON PHARMACEUTICALS COM Put 19,300 -79.75 20,285 -77.89 n/a n/a n/a
2024-05-14 2024-03-31 13F REGENERON PHARMACEUTICALS COM Put 95,300 1,971.74 91,725 2,170.42 n/a n/a n/a
2024-02-13 2023-12-31 13F REGENERON PHARMACEUTICALS COM Put 4,600 -73.41 4,040 -71.62 n/a n/a n/a
2023-11-13 2023-09-30 13F REGENERON PHARMACEUTICALS COM Put 17,300 14,237 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.