LYEL
−$25K
1,977 sh @ $13
LYEL
Lyell Immunopharma, Inc.
SEC CIK 1806952
$13.72
−46.8% · 90 days
90-day buys
$0
0 open-market
90-day sells
$25K
1 open-market
Net insider flow
−$25K
Net selling
Filings shown
28
Most recent
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At a glance
Over the last 90 days, insiders at LYEL have sold a net $25K of stock (0 open-market buys vs 1 sell).
Largest recent trade: Arch Venture Partners Ix, Llc, LYEL's 10% owner, spent $12.5M of their own money on 488,090 shares at $26, growing their stake 52%.
Most active filer: Seely Lynn, with 6 transactions among the recent filings shown.
Insider transaction history
Form 4 filings for LYEL, newest firstLYEL
Arch Venture Partners Ix, Llc, LYEL's 10% owner, spent $12.5M of their own money on 488,090 shares at $26, growing their stake 52%.
+$12.5M
488,090 sh @ $26
LYEL
Arch Venture Fund Xiii, L.p., LYEL's 10% owner, spent $12.5M of their own money on 488,090 shares at $26, growing their stake 52%.
+$12.5M
488,090 sh @ $26
LYEL
−$174.4K
7,455 sh @ $23
LYEL
−$28.9K
1,236 sh @ $23
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LYEL
−$39.1K
1,671 sh @ $23
LYEL
−$2.5K
109 sh @ $23
LYEL
−$3.4K
147 sh @ $23
LYEL
−$10.1K
438 sh @ $23
LYEL
+$0
8,750 sh
LYEL
−$5.9K
254 sh @ $23
LYEL
+$0
4,000 sh
LYEL
+$0
4,000 sh
LYEL
+$0
20,000 sh
LYEL
−$30.3K
936 sh @ $32
LYEL
−$43.9K
1,136 sh @ $39
LYEL
−$6.6K
412 sh @ $16
LYEL
−$3.8K
239 sh @ $16
LYEL
−$2.2K
138 sh @ $16
LYEL
−$1.5K
95 sh @ $16
LYEL
−$76.5K
7,257 sh @ $11
LYEL
−$10.6K
1,004 sh @ $11
LYEL
−$15.3K
1,453 sh @ $11
LYEL
−$15.3K
1,453 sh @ $11
LYEL
+$0
40,000 sh
LYEL
+$0
8,000 sh
LYEL
+$0
8,000 sh
LYEL
+$0
8,000 sh
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About LYEL insider activity
This page tracks every recent Form 4 filed for Lyell Immunopharma, Inc. with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.
The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.
Frequently asked questions
How often is LYEL insider data updated?
Continuously. We read from SEC EDGAR, so new Form 4 filings for Lyell Immunopharma, Inc. usually appear here within minutes of being accepted by the SEC.
What does "net insider flow" mean?
It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.
Why do some rows show grants or option exercises instead of buys?
Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.
Is this investment advice?
No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.