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BARCLAYS PLC

Position in IONS — Ionis Pharmaceuticals Inc

CIK 312069 LONDON, X0

Position in IONS

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$127,112,653
+$105,346,017 QoQ
Shares Held
1,603,136
+453.0% QoQ
Ownership
0.965%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#23
of 513 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in IONS Over Time

Shares Held

Position Value (USD)

Derivatives in IONS

reported options exposure · as of Jun 30, 2026
CallValue
$0
CallShares
0
PutValue
$3,964,500
PutShares
50,000

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

BARCLAYS PLC holds $1,706,205,173 across 455 Biotechnology names. IONS ranks #3 (7.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 IONS
Ionis Pharmaceuticals Inc
This page
1,603,136 $127,112,653

All Filings in IONS

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $3,964,500 50,000
2026-06-30 $127,112,653 1,603,136
2026-03-31 $3,754,500 50,000
2026-03-31 $21,766,636 289,874
2025-12-31 $10,252,656 129,600
2025-12-31 $66,679,524 842,871
2025-12-31 $11,621,259 146,900
2025-09-30 $9,610,198 146,900
2025-09-30 $10,113,932 154,600
2025-09-30 $46,713,018 714,048
2025-06-30 $23,044,838 583,266
2025-06-30 $418,806 10,600
2025-06-30 $2,394,306 60,600
2025-03-31 $1,828,302 60,600
2025-03-31 $10,678,278 353,937
2025-03-31 $319,802 10,600
2024-12-31 $20,838,676 596,072
2024-12-31 $5,244,000 150,000
2024-09-30 $25,519,501 637,032
2024-09-30 $4,006,000 100,000
2024-06-30 $2,383,000 50,000
2024-06-30 $29,343,022 615,674
2024-03-31 $25,029,726 577,387
2024-03-31 $5,852,250 135,000
2024-03-31 $1,083,750 25,000
2023-12-31 $32,605,659 644,508
2023-12-31 $2,782,450 55,000
2023-12-31 $2,782,450 55,000
2023-09-30 $2,721,600 60,000
2023-09-30 $29,010,123 639,553
2023-06-30 $22,247,778 542,232
2023-03-31 $16,398,118 458,817
2022-12-31 $19,161,135 507,311
2022-09-30 $22,313,503 504,488
2022-06-30 $13,126,512 354,579
2022-03-31 $11,717,602 316,350
2021-12-31 $10,040,012 329,938
2021-09-30 $11,077,959 330,291
2021-06-30 $14,519,799 363,996
2021-03-31 $4,440,743 98,771
2020-12-31 $378,818 6,700
2020-12-31 $2,369,026 41,900
2020-12-31 $3,938,858 69,665
2020-09-30 $1,988,155 41,900
2020-09-30 $317,915 6,700
2020-09-30 $3,598,938 75,847
2020-06-30 $613,184 10,400
2020-06-30 $4,705,065 79,801
2020-06-30 $2,582,448 43,800
2020-03-31 $2,970,223 62,822