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Public ownership evidence

Lyell Immunopharma, Inc. Common Stock (LYEL) Ownership Disclosures

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

As of 2026-10-14T23:32:50.005Z

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2026-09-102026-09-10Shook DavidS500Not reported

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

The displayed observation date is 2026-09-10 and its public availability date is 2026-09-10. Subtracting those calendar dates gives 0 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.

Recent Form 4 activity

Inspect all 11 displayed rows: Recent Form 4 activity

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2026-09-102026-09-10Shook DavidS500Not reported
2026-09-102026-09-10Aguirre Jarrad MattieuA47,500Not reported
2026-08-262026-08-21Lee Gary K.S1,457Not reported
2026-08-262026-08-21Hill Stephen J.S989Not reported
2026-08-262026-08-21Seely LynnS9,589Not reported
2026-08-122026-08-10Bulis Veronica SanchezS621Not reported
2026-08-122026-08-10Lee Gary K.S131Not reported
2026-08-122026-08-10Hill Stephen J.S89Not reported
2026-08-122026-08-10Seely LynnS390Not reported
2026-07-212026-07-17Innovative Cellular Therapeutics Holdings LtdS10Not reported
2026-07-182026-07-16Innovative Cellular Therapeutics Holdings LtdS10Not 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 LLC2026-06-302026-08-2946$646None
Cornerstone Financial Management LLC2026-03-312026-08-2946$923None
Cornerstone Financial Management LLC2025-12-312026-08-2946$1,416None
Advisors Asset Management, Inc.2025-09-302026-08-27567$9,208None
Advus Financial Partners, LLC2025-12-312026-08-267,858$241,869None
Advisors Asset Management, Inc.2025-06-302026-08-25575$5,083None
Advisors Asset Management, Inc.2025-12-312026-08-22567$17,452None
Almitas Capital LLC2026-06-302026-08-18581,407$8,168,768None
Graham Capital Management, L.P.2026-06-302026-08-1511,602$163,008None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-1517,875$251,144None
Quarry LP2026-06-302026-08-15179$2,515None
Velan Capital Investment Management LP2026-06-302026-08-15105,000$1,475,250None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15107,570$1,511,359None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15107,570$1,511,359None
Qube Research & Technologies Ltd2026-06-302026-08-15110,531$1,552,961None
Squarepoint Ops LLC2026-06-302026-08-1542,322$594,624None
JANE STREET GROUP, LLC2026-06-302026-08-1512,110$170,146None
JANE STREET GROUP, LLC2026-06-302026-08-1533,901$476,309None
Legal & General Group Plc2026-06-302026-08-15917$12,884None
HRT FINANCIAL LP2026-06-302026-08-1536,575$513,000None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1525,900$363,895Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1514,200$199,510Put
Ikarian Capital, LLC2026-06-302026-08-1541,081$577,188None
Opaleye Management Inc.2026-06-302026-08-15344,025$4,833,551None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-15367,473$5,162,996None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-151,025$11,900None
ROYAL BANK OF CANADA2026-06-302026-08-15312$4,000None
ROYAL BANK OF CANADA2026-06-302026-08-15418$6,000None
BRIDGEWAY CAPITAL MANAGEMENT, LLC2026-06-302026-08-1518,000$252,900None
CANADA PENSION PLAN INVESTMENT BOARD2026-06-302026-08-1529,411$413,225None
CITADEL ADVISORS LLC2026-06-302026-08-1517,900$251,495Put
CITADEL ADVISORS LLC2026-06-302026-08-1518,695$262,665None
CITADEL ADVISORS LLC2026-06-302026-08-1517,000$238,850Call
Foresite Capital Management V, LLC2026-06-302026-08-15476,386$6,693,223None
ARCH Venture Management, LLC2026-06-302026-08-153,247,162$45,525,211None
GROUP ONE TRADING LLC2026-06-302026-08-1588$1,236None
Point72 Asset Management, L.P.2026-06-302026-08-1526,080$366,424None
Invesco Ltd.2026-06-302026-08-159,019$126,717None
Invesco Ltd.2026-06-302026-08-151,143$16,059None
Invesco Ltd.2026-06-302026-08-153,752$52,716None
venBio Partners LLC2026-06-302026-08-15337,697$4,744,643None
Brevan Howard Capital Management LP2026-06-302026-08-1511,557$162,376None
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.2026-06-302026-08-154,333$60,879None
TWO SIGMA INVESTMENTS, LP2026-06-302026-08-1552,927$743,624None
GOLDMAN SACHS GROUP INC2026-06-302026-08-1586,779$1,219,245None
BARCLAYS PLC2026-06-302026-08-151,217$17,099None
BARCLAYS PLC2026-06-302026-08-153,498$49,147None
PRICE T ROWE ASSOCIATES INC /MD/2026-06-302026-08-1530,657$431,000None
WELLS FARGO & COMPANY/MN2026-06-302026-08-15125$1,756None
WELLS FARGO & COMPANY/MN2026-06-302026-08-157,880$110,714None

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

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.

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.