Companies / Lyell Immunopharma, Inc.
Lyell Immunopharma, Inc.
Nasdaq: LYELCIK 1806952SOUTH SAN FRANCISCO, CA
Financials · FY2025
Ownership
24.5M shares outstanding · as of Aug 3, 2026
Ownership
| Insiders | 0.51% | 124,248 |
| 10%+ / strategic | 11.64% | 2,853,056 |
| Institutions | 53.42% | 13,091,101 |
| Public float | 34.43% | 8,436,736 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 23
View all →| Insider | % of shares | Shares |
|---|---|---|
ARCH Venture Fund XIII, L.P.10% owner | 5.82% | 1,426,528 |
ARCH Venture Partners IX, LLC10% owner | 5.82% | 1,426,528 |
Seely LynnCEOPresident and CEO · Director | 0.30% | 73,878 |
Hill Stephen J.Chief Operating Officer | 0.07% | 17,795 |
Lee Gary K.Chief Scientific Officer | 0.07% | 16,938 |
Bulis Veronica SanchezVP, Corporate Controller | 0.06% | 15,637 |
ARCH Venture Fund IX, L.P.10% owner | — | — |
ARCH Venture Fund IX Overage, L.P.10% owner | — | — |
ARCH Venture Partners IX, L.P.10% owner | — | — |
| — | — |
Institutional holders 69
View all →| Holder | Value | % of shares |
|---|---|---|
| $65.14M | 13.25% | |
| $31.03M | 4.11% | |
| $30.34M | 6.17% | |
| $25.44M | 3.37% | |
| $24.64M | 3.27% | |
| $23.23M | 3.08% | |
| $17.78M | 2.36% | |
| $14.68M | 1.95% | |
| $10.39M | 1.38% | |
| $10.18M | 2.96% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | ARCH Venture Management, LLC 13F manager | Add | Common Stock | $9.79M | +488K +17.69% | 3,247,162 13.25% of shares | medium |
| Q1 2026 as of | Millennium Management LLC 13F manager | Add | Common Stock | $8.03M | +400K +682.43% | 458,905 1.87% of shares | medium |
| Q2 2026 as of | BlackRock, Inc. 13F manager | Add | Common Stock | $7.62M | +543K +298.35% | 724,342 2.96% of shares | medium |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common Stock | $1.88M | +134K +260.04% | 185,322 0.76% of shares | low |
| Q1 2026 as of | Renaissance Technologies LLC 13F manager | Add | Common Stock | $1.54M | +77K +194.79% | 116,411 0.48% of shares | low |
| Q1 2026 as of | Marshall Wace, LLP 13F manager | Add | Common Stock | $1.51M | +75K +102.57% | 148,516 0.61% of shares | low |
| Q1 2026 as of | RBF Capital, LLC 13F manager | Trim | Common Stock | $-611.6K | -30K -40.88% | 44,094 0.18% of shares | low |
| Q4 2025 as of | Barclays PLC 13F manager | Add | Common Stock | $454.8K | +15K +1239.51% | 15,967 0.07% of shares | low |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| LYEL | Common Stock | 55083R203 |