Skip to main content

NORTH STAR ASSET MANAGEMENT INC

Position in IONS — Ionis Pharmaceuticals Inc

CIK 1056559 NEENAH, WI

Position in IONS

as of Mar 31, 2026 · filed May 6, 2026
Position Value
$1,247,244
-$66,773 QoQ
Shares Held
16,610
0.0% QoQ
Ownership
0.010%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in IONS Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

NORTH STAR ASSET MANAGEMENT INC holds $9,303,998 across 8 Biotechnology names. IONS ranks #4 (13.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 IONS
Ionis Pharmaceuticals Inc
This page
16,610 $1,247,244

All Filings in IONS

Export CSV
25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $1,247,244 16,610
2025-12-31 $1,314,017 16,610
2025-09-30 $1,086,626 16,610
2025-06-30 $656,261 16,610
2025-03-31 $410,613 13,610
2024-12-31 $476,854 13,640
2024-09-30 $546,418 13,640
2024-06-30 $650,082 13,640
2024-03-31 $591,294 13,640
2023-12-31 $690,553 13,650
2023-09-30 $618,710 13,640
2023-06-30 $559,649 13,640
2023-03-31 $488,923 13,680
2022-12-31 $516,693 13,680
2022-09-30 $605,066 13,680
2022-06-30 $506,433 13,680
2022-03-31 $506,707 13,680
2021-12-31 $416,282 13,680
2021-09-30 $458,827 13,680
2021-06-30 $548,607 13,753
2021-03-31 $618,334 13,753
2020-12-31 $778,725 13,773
2020-09-30 $653,528 13,773
2020-06-30 $807,752 13,700
2020-03-31 $647,736 13,700