LYEL - Lyell Immunopharma, Inc.

Insider Purchase by Arch Venture Partners Ix, LLC (10%)

1 Month
After Trade
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Trade Summary

1 week ago, Arch Venture Partners Ix, LLC, serving as 10% owner at Lyell Immunopharma, Inc. (LYEL), purchased 488,090 shares at $25.61 per share, for a total transaction value of $12,499,985.00. Following this transaction, Arch Venture Partners Ix, LLC now holds 3,247,162 shares of LYEL.

This purchase represents a 18.00% increase in Arch Venture Partners Ix, LLC's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Friday, March 6, 2026 and publicly disclosed via SEC Form 4 filing on Monday, March 9, 2026, 3 days after the trade was made.

Lyell Immunopharma, Inc. operates in the HEALTHCARE sector, specifically within the BIOTECHNOLOGY industry. Insider buying activity in this sector can provide valuable signals about industry trends and company-specific developments.

Arch Venture Partners Ix, LLC

Arch Venture Partners Ix, LLC

10%

Arch Venture Partners IX, LLC is a venture capital entity affiliated with ARCH Venture Partners, a firm renowned for over 30 years of backing disruptive science companies in life sciences and other sectors, from seed stages with investments ranging from $50K to hundreds of millions per company.[[2]](https://www.archventure.com/about/)[[4]](https://www.archventure.com) Operating as a venture capital fund, it raised a total offering of $550 million, with $408 million sold by 2016, categorized as a private equity and venture capital fund focused on revolutionary technologies.[[3]](https://www.sec.gov/Archives/edgar/data/1666306/000166630616000003/xslFormDX01/primary_doc.xml) The firm is based in Chicago, Illinois, at 8755 W. Higgins Road, Suite 1025.[[1]](https://www.gurufocus.com/insider/127760/arch-venture-partners-ix,-llc)[[3]](https://www.sec.gov/Archives/edgar/data/1666306/000166630616000003/xslFormDX01/primary_doc.xml) Key managing directors include Robert T. Nelsen, Kristina Burow, and Mark McDonnell, all listed as executive officers and managing directors of the GP LLC.[[3]](https://www.sec.gov/Archives/edgar/data/1666306/000166630616000003/xslFormDX01/primary_doc.xml) As a 10% owner in multiple biotech firms, Arch Venture Partners IX, LLC holds significant stakes, such as 3,362,872 shares in Karuna Therapeutics Inc. (KRTX) valued at over $1.1 billion (as of 2025 estimates), and has been a 10% owner in companies like Beam Therapeutics Inc. (BEAM), Vir Biotechnology Inc. (VIR), and recently Lyell Immunopharma, Inc. (LYEL).[[1]](https://www.gurufocus.com/insider/127760/arch-venture-partners-ix,-llc)

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Trade Price

$25.61

Quantity

488,090

Total Value

$12,499,985.00

Shares Owned

3,247,162

Trade Date

Friday, March 6, 2026

10 days ago

SEC Filing Date

Monday, March 9, 2026

Filed 3 days after trade

HEALTHCAREBIOTECHNOLOGY

About Lyell Immunopharma, Inc.

Company Overview

No company information available
View news mentioning LYEL

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