Mesirow Financial Investment Management, Inc.
Position in IONS — Ionis Pharmaceuticals Inc
CIK 1469475
CHICAGO, IL
Position in IONS
as of Jun 30, 2026
· filed Jul 22, 2026
Position Value
$200,603
-$209,388 QoQ
Shares Held
2,530
-53.7% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#376
of 510 holders
Holding Since
Mar 2026
2 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 Jun 30, 2026Mesirow Financial Investment Management, Inc. holds $3,138,903 across 10 Biotechnology names. IONS ranks #6 (6.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | REGN |
Regeneron Pharmaceuticals, Inc.
|
1,571 | $979,581 | |
| 2 | HALO |
Halozyme Therapeutics, Inc.
|
9,482 | $742,156 | |
| 3 | ICCC |
Immucell Corp /De/
|
42,481 | $426,934 | |
| 4 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
628 | $311,946 | |
| 5 | NAMS |
NewAmsterdam Pharma Co N.V.
|
7,465 | $252,988 | |
| 6 | IONS |
Ionis Pharmaceuticals Inc
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|
2,530 | $200,603 | |
| 7 | CSBR |
Champions Oncology, Inc.
|
15,800 | $97,328 | |
| 8 | INTS |
Intensity Therapeutics, Inc.
|
14,118 | $57,883 |
All Filings in IONS
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $200,603 | 2,530 | Shares | Sole | 2026-07-22 | |
| 2026-03-31 | $409,991 | 5,460 | Shares | Sole | 2026-04-21 | |
| No filing history on record for this holder in this stock. | ||||||