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IONSIONS
13 quarters

Position history for Capital World InvestorsCapital World Investors's holdings in IONIS PHARMACEUTICALS INC

Yes. Capital World Investors holds 21,669,226 shares of IONS (Ionis Pharmaceuticals), worth $1.7B, as of its Q2 2026 13F filing. It increased the position by 482,857 shares (+2.3%) from Q1 2026. Capital World Investors has held IONS since Q2 2023, across 13 quarterly 13F filings. IONS is 0.2% of Capital World Investors' reported 13F portfolio.

Current Value

$1.7B

Current Shares

21.7M

Total Value Change

+$1.7B

Total Shares Change

+20.8M

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Increased
21.7M
+2.3%
$1.7B0.2%$79.29
39
2026-Q1
Increased
21.2M
+18.0%
$1.6B0.2%$75.09
45
2025-Q4
Increased
18M
+41.2%
$1.4B0.2%$79.11
51
2025-Q3
Increased
12.7M
+1.5%
$832.3M0.1%$65.42
38
2025-Q2
Increased
12.5M
+1.4%
$495.5M0.1%$39.51
32
2025-Q1
Increased
12.4M
+7.8%
$373M0.1%$30.17
34
2024-Q4
Increased
11.5M
+46.5%
$400.8M0.1%$34.96
42
2024-Q3
Increased
7.8M
+247.6%
$313.6M0.0%$40.06
50
2024-Q2
Increased
2.3M
+168.3%
$107.3M0.0%$47.66
48
2024-Q1
Unchanged
839,463
0.0%
$36.4M0.0%$43.35
0
2023-Q4
Unchanged
839,463
0.0%
$42.5M0.0%$50.59
0
2023-Q3
Unchanged
839,463
0.0%
$38.1M0.0%$45.36
0
2023-Q2
New
839,463
-
$34.4M0.0%$41.03
40

Other major holders of IONS: FMR LLC, VANGUARD GROUP INC

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