Campbell & CO Investment Adviser LLC

Position in IONS — Ionis Pharmaceuticals Inc

CIK 1353570 BALTIMORE, MD

Position in IONS

as of Jun 30, 2026 · filed Aug 3, 2026 Compact

Position Value

$3,935,321

+$3,702,467 QoQ

Shares Held

49,632

+1500.5% QoQ

Ownership

0.030%

of shares outstanding

% of Portfolio

0.21%

of 13F equity value

Holder Rank

#165

of 504 holders

Holding Since

Sep 2021

10 quarters on record

Voting authority Sole 0% Shared 0% None 100%

Healthcare · as of Jun 30, 2026

Campbell & CO Investment Adviser LLC holds $72,173,828 across 47 Biotechnology names. IONS ranks #5 (5.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	REGN	Regeneron Pharmaceuticals, Inc.	9,899	$6,172,422
2	CRSP	CRISPR Therapeutics AG	107,529	$5,864,631
3	CYTK	Cytokinetics Inc	65,978	$5,620,665
4	INSM	INSMED Inc	43,856	$4,675,926
5	IONS	Ionis Pharmaceuticals Inc This page	49,632	$3,935,321
6	HALO	Halozyme Therapeutics, Inc.	44,702	$3,498,825
7	ALNY	Alnylam Pharmaceuticals, Inc.	11,183	$3,366,418
8	RPRX	Royalty Pharma plc	52,688	$2,954,216

10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$3,935,321	49,632	+1500.5%	Shares	Sole	2026-08-03
2026-03-31	$232,854	3,101	+11.4%	Shares	Sole	2026-05-15
2025-12-31	$220,242	2,784	-82.2%	Shares	Sole	2026-02-12
2024-12-31	$548,207	15,681	-83.5%	Shares	Sole	2025-02-10
2024-03-31	$4,108,366	94,772	+472.7%	Shares	Sole	2024-05-10
2023-09-30	$750,571	16,547	+10.2%	Shares	Sole	2023-11-08
2022-12-31	$567,229	15,018	+32.9%	Shares	Sole	2023-02-14
2022-06-30	$418,288	11,299	-34.9%	Shares	Sole	2022-08-09
2021-12-31	$527,838	17,346	-12.8%	Shares	Sole	2022-02-10
2021-09-30	$667,311	19,896	—	Shares	Sole	2021-11-10
No filing history on record for this holder in this stock.