Position in IONS
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$59,226,933
+$705,618 QoQ
Shares Held
746,966
-4.2% QoQ
Ownership
0.449%
of shares outstanding
% of Portfolio
0.47%
of 13F equity value
Holder Rank
#39
of 514 holders
Holding Since
Dec 2024
7 quarters on record
Voting authority
Sole 94%
Shared 6%
None 0%
Common Shares in IONS Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026GW&K Investment Management, LLC holds $876,997,841 across 27 Biotechnology names. IONS ranks #9 (6.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | HALO |
Halozyme Therapeutics, Inc.
|
1,353,883 | $105,968,422 | |
| 2 | JAZZ |
Jazz Pharmaceuticals plc
|
350,667 | $84,500,226 | |
| 3 | BBIO |
BridgeBio Pharma, Inc.
|
1,125,131 | $83,799,756 | |
| 4 | CYTK |
Cytokinetics Inc
|
916,107 | $78,043,155 | |
| 5 | LGND |
Ligand Pharmaceuticals Inc
|
246,883 | $78,037,246 | |
| 6 | VCEL |
Vericel Corp
|
1,550,497 | $68,981,610 | |
| 7 | INSM |
INSMED Inc
|
629,760 | $67,145,010 | |
| 8 | CRNX |
Crinetics Pharmaceuticals, Inc.
|
1,731,140 | $64,779,258 |
All Filings in IONS
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $59,226,933 | 746,966 | Shares | Sole | 2026-08-12 | |
| 2026-03-31 | $58,521,315 | 779,349 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $62,233,305 | 786,668 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $17,271,337 | 264,007 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $17,733,273 | 448,830 | Shares | Sole | 2025-08-11 | |
| 2025-03-31 | $5,500,262 | 182,309 | Shares | Sole | 2025-05-05 | |
| 2024-12-31 | $6,545,211 | 187,220 | Shares | Sole | 2025-02-05 | |
| No filing history on record for this holder in this stock. | ||||||