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Public ownership evidence

Ionis Pharmaceuticals, Inc. Common Stock (IONS) Ownership Disclosures

Read IONS insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-10-202026-10-16Devers Shannon L.S1,357Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-16 and its public availability date is 2026-10-20. Subtracting those calendar dates gives 4 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0000874015-26-000267 ↗SEC 0000874015-26-000266 ↗13F 0002110329-26-000015 ↗

Recent Form 4 activity

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2026-10-202026-10-16Devers Shannon L.S1,357Not reported
2026-10-202026-10-16Swayze EricS53Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Cornerstone Financial Management LLC2026-06-302026-08-2915$1,189None
Cornerstone Financial Management LLC2026-03-312026-08-2915$1,126None
Cornerstone Financial Management LLC2025-12-312026-08-2915$1,187None
Advisors Asset Management, Inc.2020-06-302026-08-2817,587$1,036,930None
Advisors Asset Management, Inc.2021-09-302026-08-283,164$106,000None
Corient Private Wealth LP2026-06-302026-08-28193,536$15,345,472None
Corient Private Wealth LP2026-06-302026-08-283,125$247,781None
VELA Investment Management, LLC2026-03-312026-08-2812,500$938,625Call
VELA Investment Management, LLC2025-12-312026-08-285,000$395,550Call
Principia Wealth Advisory, LLC2026-06-302026-08-2732$2,537None
Principia Wealth Advisory, LLC2026-03-312026-08-2732$2,403None
Advisors Asset Management, Inc.2024-03-312026-08-273,178$137,766None
Advisors Asset Management, Inc.2025-03-312026-08-276,048$182,468None
Advisors Asset Management, Inc.2020-12-312026-08-2710,000$565,000None
Advisors Asset Management, Inc.2021-03-312026-08-273,208$144,232None
Advisors Asset Management, Inc.2021-06-302026-08-273,179$127,000None
Advisors Asset Management, Inc.2020-09-302026-08-2716,683$791,608None
Advisors Asset Management, Inc.2025-09-302026-08-275,454$356,801None
Advisors Asset Management, Inc.2023-12-312026-08-27303$15,329None
Advisors Asset Management, Inc.2019-12-312026-08-2616,462$994,469None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-2610,300$773,427None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2613,400$1,062,486None
Advisors Asset Management, Inc.2025-06-302026-08-255,999$237,020None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25180,949$14,347,446None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2514,347,446$180,949,000None
Advisors Asset Management, Inc.2024-09-302026-08-226,140$245,968None
Advisors Asset Management, Inc.2024-06-302026-08-225,074$241,827None
Advisors Asset Management, Inc.2024-12-312026-08-226,070$212,207None
Advisors Asset Management, Inc.2025-12-312026-08-222,835$224,277None
Advisors Asset Management, Inc.2020-03-312026-08-2217,833$843,144None
Assenagon Asset Management S.A.2026-06-302026-08-2240,927$3,245,102None
Harvest Fund Management Co., Ltd2026-06-302026-08-21234$19,000None
Archer Investment Corp2026-06-302026-08-20600$47,574None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-206,918$548,406None
Advisors Asset Management, Inc.2019-03-312026-08-1928,593$2,320,894None
Advisors Asset Management, Inc.2019-09-302026-08-1919,001$1,138,350None
Advisors Asset Management, Inc.2019-06-302026-08-1924,946$1,603,279None
Orion Capital Management LLC2026-06-302026-08-1980$6,343None
Ensign Peak Advisors, Inc2026-03-312026-08-1946,004$3,454,440None
Ensign Peak Advisors, Inc2025-12-312026-08-1953,664$4,245,359None
Ensign Peak Advisors, Inc2025-09-302026-08-1927,595$1,805,265None
NORTH STAR ASSET MANAGEMENT INC2026-06-302026-08-1916,560$1,313,042None
Corient Private Wealth LP2026-06-302026-08-18196,791$15,603,561None
Empowered Funds, LLC2026-06-302026-08-18110,256$8,742,198None
Empowered Funds, LLC2026-06-302026-08-18108,014$8,564,430None
Empowered Funds, LLC2026-06-302026-08-182,885$228,752None
Empowered Funds, LLC2026-06-302026-08-181,255$99,509None
Empowered Funds, LLC2026-06-302026-08-18632$50,111None
Empowered Funds, LLC2026-06-302026-08-18100$7,929None
Transamerica Financial Advisors, LLC2026-06-302026-08-1821$1,665None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗Corient Private Wealth LP ↗VELA Investment Management, LLC ↗VELA Investment Management, LLC ↗Principia Wealth Advisory, LLC ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.