STATE STREET CORP

Position in IONS — Ionis Pharmaceuticals Inc

CIK 93751 BOSTON, MA

Back to IONS Full portfolio

Position in IONS

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$300,026,900

-$14,424,670 QoQ

Shares Held

3,995,564

+0.5% QoQ

Ownership

2.42%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 20.059721230845007.ToString("F0")% Shared 0.030158445716299373.ToString("F0")% None 79.91012032343869.ToString("F0")%

Common Shares in IONS Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

STATE STREET CORP holds $30,288,856,014 across 423 Biotechnology names. IONS ranks #21 (1.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VRTX	Vertex Pharmaceuticals Inc / Ma	11,730,139	$5,237,976,269
2	REGN	Regeneron Pharmaceuticals, Inc.	4,664,478	$3,603,962,281
3	ALNY	Alnylam Pharmaceuticals, Inc.	3,322,698	$1,099,381,087
4	INSM	INSMED Inc	5,551,699	$907,813,820
5	INCY	Incyte Corp	9,641,384	$907,447,062
6	MRNA	Moderna, Inc.	14,861,409	$754,959,577
7	RPRX	Royalty Pharma plc	10,989,851	$527,183,152
8	ROIV	Roivant Sciences Ltd.	16,186,613	$448,369,180

All Filings in IONS

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$300,026,900	3,995,564	+0.5%	Shares	Defined	2026-05-15
2025-12-31	$314,451,570	3,974,865	-9.4%	Shares	Defined	2026-02-13
2025-09-30	$287,105,548	4,388,651	-3.1%	Shares	Defined	2025-11-14
2025-06-30	$178,996,024	4,530,398	-6.5%	Shares	Defined	2025-08-14
2025-03-31	$146,177,662	4,845,133	-10.7%	Shares	Defined	2025-05-15
2024-12-31	$189,707,398	5,426,413	+11.9%	Shares	Defined	2025-02-14
2024-09-30	$194,296,488	4,850,137	+15.7%	Shares	Defined	2024-11-14
2024-06-30	$199,719,468	4,190,505	+0.8%	Shares	Defined	2024-08-14
2024-03-31	$180,148,034	4,155,664	+3.7%	Shares	Defined	2024-05-15
2023-12-31	$202,805,040	4,008,797	+1.4%	Shares	Defined	2024-02-14
2023-09-30	$179,400,115	3,955,029	-0.5%	Shares	Defined	2023-11-14
2023-06-30	$163,071,806	3,974,453	-2.3%	Shares	Defined	2023-08-14
2023-03-31	$145,402,257	4,068,334	-3.6%	Shares	Defined	2023-05-15
2022-12-31	$159,341,394	4,218,729	+12.2%	Shares	Defined	2023-05-15
2022-09-30	$166,347,039	3,760,955	-10.5%	Shares	Defined	2022-11-15
2022-06-30	$155,590,395	4,202,874	+4.3%	Shares	Defined	2022-08-15
2022-03-31	$149,295,127	4,030,646	+3.2%	Shares	Defined	2022-05-16
2021-12-31	$118,870,991	3,906,375	+10.9%	Shares	Defined	2022-02-14
2021-09-30	$118,104,871	3,521,314	+9.0%	Shares	Defined	2021-11-15
2021-06-30	$128,882,635	3,230,951	-5.2%	Shares	Defined	2021-08-16
2021-03-31	$153,294,312	3,409,571	-12.9%	Shares	Defined	2021-07-09
2020-12-31	$221,259,565	3,913,328	+10.1%	Shares	Defined	2021-02-16
2020-09-30	$168,679,720	3,554,894	-1.0%	Shares	Defined	2020-11-10
2020-06-30	$211,691,340	3,590,423	-7.8%	Shares	Defined	2020-08-14
2020-03-31	$184,056,028	3,892,894	—	Shares	Defined	2020-06-19
No filing history on record for this holder in this stock.