Lyell Immunopharma, Inc. 10% holder ARCH Venture Partners IX, LLC buys $25M in LYEL shares
After the purchase, the filing lists 3,747,790 shares held.
Lyell Immunopharma, Inc. (LYEL) 10% owner ARCH Venture Partners IX, LLC bought $25 million of stock on Nov 4: 2,321,262 shares at an average of $10.77, according to an SEC filing.
The purchase was made in the open market, not through an award, an option exercise or a plan. With this purchase the insider holds 3,747,790 shares, 163% more than before.
The trade was reported within two business days, as Section 16 requires.
Details from the SEC filing:
| Company | Lyell Immunopharma, Inc. (LYEL) |
|---|---|
| Insider | ARCH Venture Partners IX, LLC |
| Role | 10% owner |
| Transaction | Open-market purchase (code P) |
| Shares | 2,321,262 |
| Average price | $10.77 |
| Value | $24,999,992 |
| Trade date | Nov 4, 2026 |
| Filed with the SEC | Nov 5, 2026, 5:35 PM ET |
| Shares held after | 3,747,790 |
| Ownership | Indirect |
| Rule 10b5-1 plan | Not marked in the filing |
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Source: SEC Form 4. Information only, not investment advice. Not affiliated with or endorsed by the U.S. Securities and Exchange Commission.
