Lyell Immunopharma, Inc. (LYEL) intrinsic value & 10-year financials

Lyell Immunopharma, Inc. (LYEL) has a Graham intrinsic value of $945.51 per share. At $8.12 on Oct 17, 2026, the stock trades 99% below that value. Over the last 8 fiscal years revenue shrank 38.4% a year to $36.0K, with an average return on invested capital of -14.4%.

Graham intrinsic value
$945.51
Share price (Oct 17, 2026)
$8.12
Price vs Graham value
99% below
Market cap
$138.8M
Revenue (FY2025)
$36.0K
Revenue growth (8-yr CAGR)
-38.4%
ROIC (10-yr avg)
-14.4%
Free cash flow (FY2025)
-$150.8M

LYEL 10-year financial history

Fiscal year Revenue Net income EPS (diluted) Free cash flow Operating margin ROIC
FY2025 $36.0K -$274.4M -$16.06 -$150.8M -748344.4% -96.5%
FY2024 $61.0K -$343.0M -$1.31 -$162.9M -588123.0% -76.7%
FY2023 $130.0K -$234.6M -$0.93 -$166.4M -190006.2% -35.0%
FY2022 $84.7M -$183.1M -$0.74 -$193.8M -220.9% -24.8%
FY2021 $10.7M -$250.2M -$0.00 -$191.8M -2016.7% -156.1%
FY2020 $7.8M -$204.5M -$0.00 -$212.4M -2732.6% 53.5%
FY2019 $657.0K -$129.4M -$0.00 $23.4M -15538.7% 234.7%
FY2018 — — — — — —

Source: annual 10-K filings on SEC EDGAR. Figures in USD.

Executive summary

Lyell Immunopharma, Inc. revenue growth over the past decade is N/A; insufficient history prevents a reliable 10-year CAGR calculation.

Lyell Immunopharma, Inc. has historically struggled to out-earn its cost of capital, averaging just -25.5% ROIC.

Lyell Immunopharma, Inc. capital allocation metrics are N/A for the decade; share count and net debt history are incomplete.

Benjamin Graham lens

Under Benjamin Graham's formula using SEC EDGAR fundamentals, Lyell Immunopharma, Inc. is modeled at -38.4% normalized earnings growth with a 5.1% bond-yield adjustment. The resulting Graham intrinsic value estimate is $945.51 per share.

LYEL stock: frequently asked questions

What is the intrinsic value of Lyell Immunopharma, Inc. (LYEL) stock?

Using Benjamin Graham's revised formula, V = EPS × (8.5 + 2g) × 4.4 / Y, with reported diluted earnings per share, a -38.4% normalized growth rate (capped at 15%) and a 5.1% AAA corporate bond yield, LYEL's intrinsic value is about $945.51 per share.

Is LYEL stock undervalued?

At $8.12 (close on Oct 17, 2026), LYEL trades 99% below its Graham value of $945.51. On Graham's terms that leaves a margin of safety. A formula is a starting point for research, not a recommendation.

Does Lyell Immunopharma, Inc. generate free cash flow?

Lyell Immunopharma, Inc. generated -$150.8M of free cash flow (operating cash flow minus capital expenditures) in fiscal 2025. Free cash flow was positive in 1 of the last 7 reported years.

What is LYEL's return on invested capital?

Average ROIC over the last 8 fiscal years was -14.4%, and average return on equity was 7.4%. Sustained ROIC above about 15% usually points to a durable competitive advantage.

Where does this LYEL data come from?

From Lyell Immunopharma, Inc.'s annual 10-K filings on SEC EDGAR. Prices are end-of-day snapshots; valuations are formula outputs, not investment advice.

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