BERKSHIRE ASSET MANAGEMENT LLC/PA
Position in IONS — Ionis Pharmaceuticals Inc
CIK 949012
WILKES BARRE, PA
Position in IONS
as of Jun 30, 2026
· filed Aug 5, 2026
Position Value
$287,822
+$14,720 QoQ
Shares Held
3,630
-0.2% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#347
of 510 holders
Holding Since
Mar 2020
14 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, 2026BERKSHIRE ASSET MANAGEMENT LLC/PA holds $287,822 across 1 Biotechnology name. IONS ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | IONS |
Ionis Pharmaceuticals Inc
This page
|
3,630 | $287,822 |
All Filings in IONS
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14 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $287,822 | 3,630 | Shares | Sole | 2026-08-05 | |
| 2026-03-31 | $273,102 | 3,637 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $287,169 | 3,630 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $236,427 | 3,614 | Shares | Sole | 2025-11-07 | |
| 2023-12-31 | $211,466 | 4,180 | Shares | Sole | 2024-02-09 | |
| 2022-06-30 | $207,163 | 5,596 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $360,732 | 9,739 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $281,142 | 9,239 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $438,032 | 13,060 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $454,706 | 11,399 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $555,166 | 12,348 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $698,155 | 12,348 | Shares | Sole | 2021-02-16 | |
| 2020-06-30 | $235,014 | 3,986 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $544,476 | 11,516 | Shares | Sole | 2020-05-13 | |
| No filing history on record for this holder in this stock. | ||||||