Skip to content

LYEL · Lyell Immunopharma, Inc.

Healthcare · −0.9% on Oct 16

☆ Add to watchlist

Updated Oct 17 · 8 feeds behind: FDA drug approvals, 4 days, and 7 more · Every feed →

On this page

The market view

Price chart

The interactive LYEL chart (by TradingView) loads here.

Our take

4 rules fired on LYEL

In short: none of these rules has solid or some evidence yet, so they show no clear lean on LYEL.

How each did in past tests, against similar stocks over 3 months. Past results don't predict future ones.

All 4 rules
The 0–100 score for LYEL, and which of these rules are open on it right now
Members see one number for how strongly these rules agree on LYEL, and the day each rule fired. Better-tested rules count more, and so do different kinds of filings that point the same way.
See pricing →
Already a member? Sign in

Compare with this company’s history

Is disclosure activity unusual?

See how many different insiders or members of Congress reported purchases or sales of LYEL. Each bar covers 28 days, by disclosure date. Several trades by one person count once in each group and period.

Latest period: Sep 24, 2026–Oct 21, 2026 · UTC dates · today is excluded

Insider sales

Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual.

Latest 28 days
1
Earlier median
1
Earlier range
1–4
Distinct filers per 28 daysScale: 0–5
Oct 23, 2025Oct 21, 2026
Earlier periodsLatest 28 daysEarlier median 1Limited or missing history

Who appears in the latest period?

Up to three filers; one example disclosure each.

Inspect this period’s filings

The history behind this view

First stored company disclosure: Jun 11, 2026. Newest disclosure across this feed: Oct 16, 2026.

Earlier periods in the comparison: 3. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.

Exact counts, dates and filings for all four categories
Insider purchases · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 0; range: 0–0.

Insider purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 23, 2025–Nov 19, 2025—Unavailable
Nov 20, 2025–Dec 17, 2025—Unavailable
Dec 18, 2025–Jan 14, 2026—Unavailable
Jan 15, 2026–Feb 11, 2026—Unavailable
Feb 12, 2026–Mar 11, 2026—Unavailable
Mar 12, 2026–Apr 8, 2026—Unavailable
Apr 9, 2026–May 6, 2026—Unavailable
May 7, 2026–Jun 3, 2026—Unavailable
Jun 4, 2026–Jul 1, 20260Partial; excluded
Jul 2, 2026–Jul 29, 20260Within stored history
Jul 30, 2026–Aug 26, 20260Within stored history
Aug 27, 2026–Sep 23, 20260Within stored history
Sep 24, 2026–Oct 21, 2026Latest period0Within stored history
Insider sales · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 1; range: 1–4.

Insider sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 23, 2025–Nov 19, 2025—Unavailable
Nov 20, 2025–Dec 17, 2025—Unavailable
Dec 18, 2025–Jan 14, 2026—Unavailable
Jan 15, 2026–Feb 11, 2026—Unavailable
Feb 12, 2026–Mar 11, 2026—Unavailable
Mar 12, 2026–Apr 8, 2026—Unavailable
Apr 9, 2026–May 6, 2026—Unavailable
May 7, 2026–Jun 3, 2026—Unavailable
Jun 4, 2026–Jul 1, 20265Partial; excluded
Jul 2, 2026–Jul 29, 20261Within stored history
Jul 30, 2026–Aug 26, 20264Within stored history
Aug 27, 2026–Sep 23, 20261Within stored history
Sep 24, 2026–Oct 21, 2026Latest period1Within stored history
Congress purchases · History unavailable

No completed-period disclosures for this company are available in this source. Missing history is not zero activity. Earlier median: —; range: unavailable.

Congress purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 23, 2025–Nov 19, 2025—Unavailable
Nov 20, 2025–Dec 17, 2025—Unavailable
Dec 18, 2025–Jan 14, 2026—Unavailable
Jan 15, 2026–Feb 11, 2026—Unavailable
Feb 12, 2026–Mar 11, 2026—Unavailable
Mar 12, 2026–Apr 8, 2026—Unavailable
Apr 9, 2026–May 6, 2026—Unavailable
May 7, 2026–Jun 3, 2026—Unavailable
Jun 4, 2026–Jul 1, 2026—Unavailable
Jul 2, 2026–Jul 29, 2026—Unavailable
Jul 30, 2026–Aug 26, 2026—Unavailable
Aug 27, 2026–Sep 23, 2026—Unavailable
Sep 24, 2026–Oct 21, 2026Latest period—Unavailable
Congress sales · History unavailable

No completed-period disclosures for this company are available in this source. Missing history is not zero activity. Earlier median: —; range: unavailable.

Congress sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 23, 2025–Nov 19, 2025—Unavailable
Nov 20, 2025–Dec 17, 2025—Unavailable
Dec 18, 2025–Jan 14, 2026—Unavailable
Jan 15, 2026–Feb 11, 2026—Unavailable
Feb 12, 2026–Mar 11, 2026—Unavailable
Mar 12, 2026–Apr 8, 2026—Unavailable
Apr 9, 2026–May 6, 2026—Unavailable
May 7, 2026–Jun 3, 2026—Unavailable
Jun 4, 2026–Jul 1, 2026—Unavailable
Jul 2, 2026–Jul 29, 2026—Unavailable
Jul 30, 2026–Aug 26, 2026—Unavailable
Aug 27, 2026–Sep 23, 2026—Unavailable
Sep 24, 2026–Oct 21, 2026Latest period—Unavailable
How to read this comparison

The median is the middle count in up to 12 earlier, non-overlapping 28-day periods; the range runs from the smallest to the largest count. The latest period is excluded from both. A comparison needs at least 6 earlier periods, including 3 with activity. The feed’s latest disclosure must be within 7 days of the current period’s end. This freshness check does not verify complete collection.

Insiders include individuals and reporting entities; only purchase and sale codes enter this view. Congress counts reporting members, including their disclosed family transactions. The same filer can appear in purchases and sales, so these categories should not be added into a net count.

These are stored disclosures, not a complete measure of trading. Reporting delays and collection gaps can change the comparison. More activity does not identify a motive or predict a stock’s return.

Company timeline

What has been happening?

May 1, 2026–Oct 16, 2026. Select a month in a category to inspect its records.

Company filings

Insiders

Insiders · Oct 2026

  1. Disclosed
    Jarrad Mattieu Aguirre · Sale

    Transaction dated Oct 12, 2026

All 23 records in this snapshot
  1. Disclosed
    Jarrad Mattieu Aguirre · Sale

    Transaction dated Oct 12, 2026

  2. Filed
  3. Disclosed
    David Shook · Sale

    Transaction dated Sep 10, 2026

  4. Filed
  5. Disclosed
    Gary K. Lee · Sale

    Transaction dated Aug 21, 2026

  6. Disclosed
    Lynn Seely · Sale

    Transaction dated Aug 21, 2026

  7. Disclosed
    Stephen J. Hill · Sale

    Transaction dated Aug 21, 2026

  8. Record date
  9. Disclosed
    Gary K. Lee · Sale

    Transaction dated Aug 10, 2026

  10. Disclosed
    Lynn Seely · Sale

    Transaction dated Aug 10, 2026

  11. Disclosed
    Stephen J. Hill · Sale

    Transaction dated Aug 10, 2026

  12. Disclosed
    Veronica Sanchez Bulis · Sale

    Transaction dated Aug 10, 2026

  13. Disclosed
  14. Disclosed
  15. Disclosed
    Gary K. Lee · Sale

    Transaction dated May 11, 2026

  16. Disclosed
    Lynn Seely · Sale

    Transaction dated May 11, 2026

  17. Filed
  18. Disclosed
    Stephen J. Hill · Sale

    Transaction dated May 11, 2026

  19. Disclosed
    Veronica Sanchez Bulis · Sale

    Transaction dated May 11, 2026

  20. Disclosed
    David Shook · Sale

    Transaction dated Jun 10, 2026

  21. Record date
  22. Filed
  23. Filed

Month counts include every record on file. The lists show the newest records on this page. A dash means none on file that month. Trades use disclosure dates; contract dates follow the source record. Nearby events do not establish the cause of a price move.

Who's buying and selling · last 90 days

Congress

No Congress trades on LYEL disclosed in the last 90 days.

See every Congress trade on LYEL →

Company insiders

0 buys · 10 sells · $215K sold

  1. ▼ SELLJarrad Mattieu Aguirre Chief Medical OfficerLYEL Lyell Immunopharma, Inc.$3.6Kdisclosed Oct 13 · filed 1 day after the trade
  2. ▼ SELLDavid Shook Chief Medical OfficerLYEL Lyell Immunopharma, Inc.$6.3Kdisclosed Sep 10 · filed the same day
  3. ▼ SELLGary K. Lee Chief Scientific OfficerLYEL Lyell Immunopharma, Inc.$22.6Kdisclosed Aug 25 · filed 4 days after the trade
  4. ▼ SELLStephen J. Hill Chief Operating OfficerLYEL Lyell Immunopharma, Inc.$15.4Kdisclosed Aug 25 · filed 4 days after the trade
  5. ▼ SELLLynn Seely President and CEOLYEL Lyell Immunopharma, Inc.$149Kdisclosed Aug 25 · filed 4 days after the trade
  6. ▼ SELLLynn Seely President and CEOLYEL Lyell Immunopharma, Inc.$5.6Kdisclosed Aug 11 · filed 1 day after the trade
  7. ▼ SELLStephen J. Hill Chief Operating OfficerLYEL Lyell Immunopharma, Inc.$1.3Kdisclosed Aug 11 · filed 1 day after the trade
  8. ▼ SELLVeronica Sanchez Bulis VP, Corporate ControllerLYEL Lyell Immunopharma, Inc.$8.9Kdisclosed Aug 11 · filed 1 day after the trade
  9. ▼ SELLGary K. Lee Chief Scientific OfficerLYEL Lyell Immunopharma, Inc.$1.9Kdisclosed Aug 11 · filed 1 day after the trade
  10. ▼ SELLInnovative Cellular Therapeutics Holdings Ltd 10% ownerLYEL Lyell Immunopharma, Inc.$137disclosed Jul 20 · filed 3 days after the trade
See every insider trade on LYEL →

Filings & events

Company filings (8-K) 47

Events the company must report to the SEC within days — results, deals, departures, restatements.

What it files 8-Ks about

  • Quarterly or yearly results · item 2.029
  • Directors or officers joined, left or got new pay · item 5.025
  • Other events · item 8.014
  • Shared information with investors · item 7.014
  • Shareholder vote results · item 5.073
  • Sold shares privately · item 3.023

Filing red flags 9

Warning signs in the company's own SEC filings — going-concern doubts, control weaknesses, staff comment letters, late filings, restatements, Wells notices, clinical holds, dividend cuts.

5% owners (13D / 13G) 4

Investors who reported owning 5% or more — 13D for owners who may push for changes, 13G for owners who just hold.

Push for changes, or just hold?

  • 13D, may push for changes: 0 filings
  • 13G, just holds: 4 filings

Filed by Euler Fund, L.P. · Innovative Cellular Therapeutics Holdings Ltd · Explore Investments LLC/DE · Gates Frontier, LLC

Biggest named funds (13F)

The largest LYEL holdings among the well-known funds whose quarterly 13F filings we read — opens here.

Every disclosed trade on LYEL

  1. ▼ SELLJarrad Mattieu Aguirre Chief Medical OfficerLYEL Lyell Immunopharma, Inc.$3.6Kdisclosed Oct 13 · filed 1 day after the trade
  2. ▼ SELLDavid Shook Chief Medical OfficerLYEL Lyell Immunopharma, Inc.$6.3Kdisclosed Sep 10 · filed the same day
  3. ▼ SELLGary K. Lee Chief Scientific OfficerLYEL Lyell Immunopharma, Inc.$22.6Kdisclosed Aug 25 · filed 4 days after the trade
  4. ▼ SELLStephen J. Hill Chief Operating OfficerLYEL Lyell Immunopharma, Inc.$15.4Kdisclosed Aug 25 · filed 4 days after the trade
  5. ▼ SELLLynn Seely President and CEOLYEL Lyell Immunopharma, Inc.$149Kdisclosed Aug 25 · filed 4 days after the trade
  6. ▼ SELLLynn Seely President and CEOLYEL Lyell Immunopharma, Inc.$5.6Kdisclosed Aug 11 · filed 1 day after the trade
  7. ▼ SELLStephen J. Hill Chief Operating OfficerLYEL Lyell Immunopharma, Inc.$1.3Kdisclosed Aug 11 · filed 1 day after the trade
  8. ▼ SELLVeronica Sanchez Bulis VP, Corporate ControllerLYEL Lyell Immunopharma, Inc.$8.9Kdisclosed Aug 11 · filed 1 day after the trade
  9. ▼ SELLGary K. Lee Chief Scientific OfficerLYEL Lyell Immunopharma, Inc.$1.9Kdisclosed Aug 11 · filed 1 day after the trade
  10. ▼ SELLInnovative Cellular Therapeutics Holdings Ltd 10% ownerLYEL Lyell Immunopharma, Inc.$137disclosed Jul 20 · filed 3 days after the trade
  11. ▼ SELLInnovative Cellular Therapeutics Holdings Ltd 10% ownerLYEL Lyell Immunopharma, Inc.$137disclosed Jul 17 · filed 1 day after the trade
  12. ▼ SELLGary K. Lee Chief Scientific OfficerLYEL Lyell Immunopharma, Inc.$2.5Kdisclosed Jun 15 · filed 35 days after the trade · late
  13. ▼ SELLVeronica Sanchez Bulis VP, Corporate ControllerLYEL Lyell Immunopharma, Inc.$4.1Kdisclosed Jun 15 · filed 35 days after the trade · late
  14. ▼ SELLStephen J. Hill Chief Operating OfficerLYEL Lyell Immunopharma, Inc.$1.7Kdisclosed Jun 15 · filed 35 days after the trade · late
  15. ▼ SELLLynn Seely President and CEOLYEL Lyell Immunopharma, Inc.$7.3Kdisclosed Jun 15 · filed 35 days after the trade · late
  16. ▼ SELLDavid Shook Chief Medical OfficerLYEL Lyell Immunopharma, Inc.$25Kdisclosed Jun 11 · filed 1 day after the trade
See the trades on LYEL in the feed →
People & votes

Which members of Congress traded LYEL, sponsored bills that touch it and voted on them — opens here.