Ionis Pharmaceuticals, Inc.
GB ˙ LSE ˙ US4622221004
73,83 $ ↑0,93 (1,28%)
2026-06-03
DEL PRIS
SecurityGB:0JDI / Ionis Pharmaceuticals, Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership808,443 shares
Latest Disclosed Value $ 60,705,985
UBS Group AG ownership in 0JDI / Ionis Pharmaceuticals, Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 808,443 shares of Ionis Pharmaceuticals, Inc. (GB:0JDI) valued at $60,793,297 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 1,045,041 shares of Ionis Pharmaceuticals, Inc.. This represents a change in shares of -22.64% during the quarter. The current value of the position is $59,687,347 USD.

UBS Group AG has a history of taking positions in derivatives of the underlying security (0JDI) 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.

GB:0JDI / Ionis 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)
2026-05-05 2026-03-31 13F IONIS PHARMACEUTICALS COM 462222100 808,443 -236,598 -22.64 60,706 -26.57 0.0017
2026-01-29 2025-12-31 13F IONIS PHARMACEUTICALS COM 462222100 1,045,041 -1,949 -0.19 82,673 20.70 0.0134
2025-11-13 2025-09-30 13F IONIS PHARMACEUTICALS COM 462222100 1,046,990 -482,333 -31.54 68,494 13.36 0.0107
2025-08-14 2025-06-30 13F IONIS PHARMACEUTICALS COM 462222100 1,529,323 -361,279 -19.11 60,424 5.93 0.0105
2025-05-13 2025-03-31 13F IONIS PHARMACEUTICALS COM 462222100 1,890,602 -27,006 -1.41 57,039 -14.92 0.0105
2025-02-14 2024-12-31 13F IONIS PHARMACEUTICALS COM 462222100 1,917,608 1,749,728 1,042.25 67,040 896.86 0.0124
2024-11-14 2024-09-30 13F IONIS PHARMACEUTICALS COM 462222100 167,880 15,208 9.96 6,725 -7.57 0.0015
2024-08-14 2024-06-30 13F IONIS PHARMACEUTICALS COM 462222100 152,672 -19,091 -11.11 7,276 -2.27 0.0018
2024-05-13 2024-03-31 13F IONIS PHARMACEUTICALS COM 462222100 171,763 12,024 7.53 7,446 -7.87 0.0019
2024-02-09 2023-12-31 13F IONIS PHARMACEUTICALS COM 462222100 159,739 50,705 46.50 8,081 63.42 0.0024
2023-11-09 2023-09-30 13F IONIS PHARMACEUTICALS COM 462222100 109,034 16,209 17.46 4,946 29.86 0.0017
2023-08-11 2023-06-30 13F IONIS PHARMACEUTICALS COM 462222100 92,825 -8,121 -8.04 3,809 5.57 0.0013
2023-05-12 2023-03-31 13F IONIS PHARMACEUTICALS COM 462222100 100,946 -60,525 -37.48 3,608 -40.85 0.0013
2023-02-08 2022-12-31 13F IONIS PHARMACEUTICALS COM 462222100 161,471 100,161 163.37 6,099 124.85 0.0023
2022-11-10 2022-09-30 13F IONIS PHARMACEUTICALS COM 462222100 61,310 -108,857 -63.97 2,712 -56.95 0.0012
2022-08-10 2022-06-30 13F IONIS PHARMACEUTICALS COM 462222100 170,167 -31,034 -15.42 6,300 -15.47 0.0026
2022-05-16 2022-03-31 13F IONIS PHARMACEUTICALS COM 462222100 201,201 7,612 3.93 7,453 26.52 0.0025
2022-02-14 2021-12-31 13F IONIS PHARMACEUTICALS COM 462222100 193,589 60,777 45.76 5,891 32.23 0.0017
2021-11-15 2021-09-30 13F IONIS PHARMACEUTICALS COM 462222100 132,812 -22,317 -14.39 4,455 -28.01 0.0014
2021-08-13 2021-06-30 13F IONIS PHARMACEUTICALS COM 462222100 155,129 126,067 433.79 6,188 373.45 0.0020
2021-05-12 2021-03-31 13F IONIS PHARMACEUTICALS COM 462222100 29,062 -43,258 -59.81 1,307 -68.04 0.0004
2021-02-11 2020-12-31 13F IONIS PHARMACEUTICALS COM 462222100 72,320 -36,608 -33.61 4,090 -20.87 0.0014
2020-11-12 2020-09-30 13F IONIS PHARMACEUTICALS COM 462222100 108,928 60,169 123.40 5,169 79.85 0.0019
2020-07-31 2020-06-30 13F IONIS PHARMACEUTICALS COM 462222100 48,759 -42,344 -46.48 2,874 -33.29 0.0012
2020-05-01 2020-03-31 13F IONIS PHARMACEUTICALS COM 462222100 91,103 -57,367 -38.64 4,308 -51.97 0.0020
2020-02-14 2019-12-31 13F IONIS PHARMACEUTICALS COM 462222100 148,470 -80,655 -35.20 8,970 -34.65 0.0031
2019-11-14 2019-09-30 13F IONIS PHARMACEUTICALS COM 462222100 229,125 83,646 57.50 13,727 46.83 0.0053
2019-08-14 2019-06-30 13F IONIS PHARMACEUTICALS COM 462222100 145,479 40,817 39.00 9,349 10.04 0.0036
2019-05-14 2019-03-31 13F IONIS PHARMACEUTICALS COM 462222100 104,662 -68,076 -39.41 8,496 -9.02 0.0035
2019-02-14 2018-12-31 13F IONIS PHARMACEUTICALS COM 462222100 172,738 69,474 67.28 9,338 75.30 0.0042
2018-11-14 2018-09-30 13F IONIS PHARMACEUTICALS COM 462222100 103,264 24,841 31.68 5,327 63.00 0.0021
2018-08-14 2018-06-30 13F IONIS PHARMACEUTICALS COM 462222100 78,423 -103,133 -56.81 3,268 -59.17 0.0014
2018-05-15 2018-03-31 13F IONIS PHARMACEUTICALS COM 462222100 181,556 91,187 100.91 8,003 76.08 0.0035
2018-02-14 2017-12-31 13F IONIS PHARMACEUTICALS COM 462222100 90,369 -30,277 -25.10 4,545 -25.70 0.0019
2017-11-14 2017-09-30 13F IONIS PHARMACEUTICALS COM 462222100 120,646 52,681 77.51 6,117 76.95 0.0028
2017-11-14 2017-06-30 13F/A-1 IONIS PHARMACEUTICALS COM 462222100 67,965 -39,039 -36.48 3,457 -19.64 0.0018
2017-08-14 2017-06-30 13F IONIS PHARMACEUTICALS COM 462222100 67,965 -39,039 3,457
2017-11-14 2017-03-31 13F/A-1 IONIS PHARMACEUTICALS COM 462222100 107,004 -20,539 -16.10 4,302 -29.49 0.0023
2017-05-12 2017-03-31 13F IONIS PHARMACEUTICALS COM 462222100 107,004 -20,539 4,302
2017-02-14 2016-12-31 13F IONIS PHARMACEUTICALS COM 462222100 127,543 -29,738 -18.91 6,101 5.87 0.0034
2016-11-14 2016-09-30 13F IONIS PHARMACEUTICALS COM 462222100 157,281 84,649 116.55 5,763 240.80 0.0034
2016-08-12 2016-06-30 13F IONIS PHARMACEUTICALS COM 462222100 72,632 -12,573 -14.76 1,691 -51.00 0.0011
2016-05-12 2016-03-31 13F IONIS PHARMACEUTICALS COM 462222100 85,205 -89,116 -51.12 3,451 -68.03 0.0023
2016-02-16 2015-12-31 13F IONIS PHARMACEUTICALS COM 462222100 174,321 81,425 87.65 10,795 187.48 0.0070
2015-11-13 2015-09-30 13F ISIS PHARMACEUTICALS COM 464330109 92,896 -24,628 -20.96 3,755 -44.49 0.0027
2015-08-14 2015-06-30 13F ISIS PHARMACEUTICALS COM 464330109 117,524 31,887 37.24 6,764 24.06 0.0045
2015-05-14 2015-03-31 13F ISIS PHARMACEUTICALS COM 464330109 85,637 -15,595 -15.41 5,452 -12.77 0.0038
2015-02-17 2014-12-31 13F ISIS PHARMACEUTICALS COM 464330109 101,232 101,232 6,250 0.0044
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
(%)
2016-11-14 2016-09-30 13F IONIS PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-08-12 2016-06-30 13F IONIS PHARMACEUTICALS COM Call 180,000 4,192 n/a n/a n/a
2016-05-12 2016-03-31 13F IONIS PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-02-16 2015-12-31 13F IONIS PHARMACEUTICALS COM Call 5,000 0.00 310 53.47 n/a n/a n/a
2015-11-13 2015-09-30 13F ISIS PHARMACEUTICALS COM Call 5,000 -19.35 202 -43.42 n/a n/a n/a
2015-08-14 2015-06-30 13F ISIS PHARMACEUTICALS COM Call 6,200 -34.74 357 -40.99 n/a n/a n/a
2015-05-14 2015-03-31 13F ISIS PHARMACEUTICALS COM Call 9,500 -69.75 605 -68.80 n/a n/a n/a
2015-02-17 2014-12-31 13F ISIS PHARMACEUTICALS COM Call 31,400 1,939 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
(%)
2017-11-14 2017-03-31 13F/A IONIS PHARMACEUTICALS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-14 2016-12-31 13F IONIS PHARMACEUTICALS COM Put 500 0.00 24 33.33 n/a n/a n/a
2016-11-14 2016-09-30 13F IONIS PHARMACEUTICALS COM Put 500 -99.45 18 -99.15 n/a n/a n/a
2016-08-12 2016-06-30 13F IONIS PHARMACEUTICALS COM Put 90,500 18,000.00 2,108 10,440.00 n/a n/a n/a
2016-05-12 2016-03-31 13F IONIS PHARMACEUTICALS COM Put 500 -80.00 20 -87.10 n/a n/a n/a
2016-02-16 2015-12-31 13F IONIS PHARMACEUTICALS COM Put 2,500 0.00 155 53.47 n/a n/a n/a
2015-11-13 2015-09-30 13F ISIS PHARMACEUTICALS COM Put 2,500 -3.85 101 -32.67 n/a n/a n/a
2015-08-14 2015-06-30 13F ISIS PHARMACEUTICALS COM Put 2,600 -23.53 150 -30.56 n/a n/a n/a
2015-05-14 2015-03-31 13F ISIS PHARMACEUTICALS COM Put 3,400 -66.99 216 -66.04 n/a n/a n/a
2015-02-17 2014-12-31 13F ISIS PHARMACEUTICALS COM Put 10,300 636 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.