IONS — IONIS PHARMACEUTICALS INCToday's name, from the SEC's present-day ticker list — a present-day mapping, not the name as of each filing.

Congress trades
10
all time
Members · 12m
0
0 buys · 0 sells · by trade date
Latest filing
04-17
2023-04-17
Rows filed past the STOCK Act's 45-day window, stated on the row, never editorialised; both dates and the receipt stay on every row.
2
13F holders
456
all listed · 2026-03-31
Congress: statutory ranges, filed up to 45 days after the trade · 13F: quarter-end snapshots, filed up to 45 days lateras of 2026-10-29
Congress 10Institutional 456

Congress · disclosure timeline

By trade date · 24 months · 0 rows ▲ buy, ▼ sell; height = lower bound (log scale). Trade date, not filing date — the filing lag is in the table below.

No dated IONS rows fall inside the trailing 24 months by trade date.

Members active in IONS

12 months · most active first Rows = number of disclosures, not dollars. Net = lower bound of the net range. Committees as of each member's latest trade in the window (roster snapshot 2026-10-29).

No member disclosed IONS in the trailing 12 months.

Congressional disclosures

Newest filed firstAll 10 rows ↗
Latest congressional filings mentioning IONS
FiledMemberSide · OwnerTraded · LagAmountRange · FlagsSrc
2023-04-17Daniel S. Goldman D–NY-10SELLTraded 03-06 +42d$1K–$15K
2020-04-27Donna E. Shalala D–FL-27SELLTraded 2019-06-24 LATE·308d$1K–$15K
2020-04-27Donna E. Shalala D–FL-27BUYTraded 2019-05-08 LATE·355d$1K–$15K
2016-12-02Thomas MacArthur R–NJ-3BUY JT (jointly owned)Traded 11-02 +30d$15K–$50K
2016-12-02Thomas MacArthur R–NJ-3BUY DC (dependent-child-owned)Traded 11-02 +30d$1K–$15K
2016-12-02Thomas MacArthur R–NJ-3BUY DC (dependent-child-owned)Traded 11-02 +30d$1K–$15K
2016-03-03Thomas MacArthur R–NJ-3BUY JT (jointly owned)Traded 02-24 +8d$1K–$15K
2016-03-03Thomas MacArthur R–NJ-3BUY JT (jointly owned)Traded 02-12 +20d$1K–$15K
2016-03-03Thomas MacArthur R–NJ-3SELL JT (jointly owned)Traded 02-02 +30d$15K–$50K
2016-02-23Sheldon Whitehouse D–RISELLTraded 01-20 +34d$1K–$15K

13F holders · Quarter ended 2026-03-31Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt. · longs only

Top institutional holders of IONS for quarter 2026-03-31, 1–25 of 456 holders
#FilerValueSecuritiesFlagsderived by Public Filings from this build's reviewed ticker-mapping holders list for this share class; that list carries each holder's share count, share change and filed date, which this table does not show, but no document links — the EDGAR link opens the filer's 13F list·§
1FMR LLC$1.8B1
derived ·§ EDGAR ↗
2Capital World Investors$1.6B1
derived ·§ EDGAR ↗
3BlackRock, Inc.$784M1
derived ·§ EDGAR ↗
4VANGUARD PORTFOLIO MANAGEMENT LLC$586M1
derived ·§ EDGAR ↗
5VANGUARD CAPITAL MANAGEMENT LLC$535M1
derived ·§ EDGAR ↗
6WELLINGTON MANAGEMENT GROUP LLP$480M1
derived ·§ EDGAR ↗
7TWO SIGMA INVESTMENTS, LP$440M1
derived ·§ EDGAR ↗
8GEODE CAPITAL MANAGEMENT, LLC$305M1
derived ·§ EDGAR ↗
9STATE STREET CORP$300M1
derived ·§ EDGAR ↗
10ROYAL BANK OF CANADA$285M1
derived ·§ EDGAR ↗
11Tweedy, Browne Co LLC$171M1
derived ·§ EDGAR ↗
12Artisan Partners Limited Partnership$155M1
derived ·§ EDGAR ↗
13BAKER BROS. ADVISORS LP$154M1
derived ·§ EDGAR ↗
14DEERFIELD MANAGEMENT COMPANY, L.P.$149M1
derived ·§ EDGAR ↗
15Deep Track Capital, LP$146M1
derived ·§ EDGAR ↗
16Bellevue Group AG$137M1
derived ·§ EDGAR ↗
17AMERICAN CENTURY COMPANIES INC$125M1
derived ·§ EDGAR ↗
18CHARLES SCHWAB INVESTMENT MANAGEMENT INC$119M1
derived ·§ EDGAR ↗
19FRANKLIN RESOURCES INC$118M1
derived ·§ EDGAR ↗
20UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$111M1
derived ·§ EDGAR ↗
21Pictet Asset Management Holding SA$107M1
derived ·§ EDGAR ↗
22SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC$105M1
derived ·§ EDGAR ↗
23Invesco Ltd.$95.9M1
derived ·§ EDGAR ↗
24MILLENNIUM MANAGEMENT LLC$79.0M1
derived ·§ EDGAR ↗
25MORGAN STANLEY$77.1M1
derived ·§ EDGAR ↗
Show all 456 holders
Truncated by Public Filings. All 389 13F filers reporting this share class are listed. Method ↗

Crowding — not available in this build. No holder rows for the selected period, so no percentile can be ranked.

Congress ↔ notable managers · IONS

Congress · last 90 days

Buyers
0 — —
Sellers
0 — —

filed 2026-07-31 → 2026-10-29 · statutory ranges

Notable managers · quarter ended 2026-03-31

Adding
1 Gotham Asset Management $7.4M held
Trimming
1 Bridgewater Associates $0 held

by shares · $ = value heldNEW + ADD vs TRIM + EXIT, by share count. $ = reported value now, not the change. · IONIS PHARMACEUTICALS INC

Merged timeline of congressional filings and notable-manager moves on IONS
DateWhoChangeSize
2026-05-15Gotham Asset Management 13FADD+55,756 sh
2026-05-15Bridgewater Associates 13FEXIT−67,706 sh

2 newest, by filing date · 13F rows are quarter-end snapshots, not trades

Congress vs filers

12 months
Congress net (rows)no rows
Congress net ($ bound)$0
Filersnot computedThe filer side needs per-issuer quarter-over-quarter actions, which the published aggregate does not carry for this issuer. Convergence and divergence are stated only when both sides are computed.