‹ Iovance Biotherapeutics
Ch 1 · Amtagvi Is Real Revenue
Chapter 1 · Growth
$71M of revenue, 45% YoY growth, $350-370M full- year guidance.
Amtagvi is selling. The growth ladder is built — if manufacturing keeps up.
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✦ The bottom line
Iovance's Q1 2026 revenue of $71 million was up 45% year over year — $60M from Amtagvi (lifileucel, the TIL therapy for advanced melanoma) and $11M from Proleukin. Full-year 2026 guidance is $350-370 million. That's not pre-commercial biotech math — that's a real launch ramping.
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✦ Teach me
What 'TIL therapy' actually is
TIL stands for tumor-infiltrating lymphocytes — the patient's own T-cells, extracted from inside a tumor, multiplied in a manufacturing facility for weeks, then infused back into the patient. The promise: a one-time treatment that uses the immune system to attack solid tumors. Amtagvi (lifileucel) was the first TIL therapy ever FDA-approved (Feb 2024), for advanced melanoma after other treatments fail.
Wall Street calls this
Adoptive cell therapy
TIL therapy is genuinely first-in-class for solid tumors. If it can expand to more cancers (NSCLC, sarcoma, endometrial), the addressable market multiplies.
The top line · latest quarter
$71
M
Q1 2026 revenue of $71M, up 45% from $49M a year earlier — driven by U.S. Amtagvi sales of $60M and global Proleukin sales of $11M.
Source · 8-K · Item 2.02 — Q1 2026 earnings release · Q1 2026 · Filed May 7, 2026
The bigger growth signal isn't the past quarter — it's the guidance. Management forecast Q2 revenue of $86-88M (a ~23% step-up over Q4 2025's pre-maintenance run-rate) and a full year of $350-370M. That's the company saying, *publicly, with a number*, that the launch is on its growth trajectory.
The commitment · FY2026 guidance
$350-370
M
FY2026 total revenue guidance of $350-370M — roughly 35% growth over FY2025's $263.5M, anchored by Amtagvi US expansion to 110+ treatment centers.
Source · 8-K · Item 2.02 — FY2026 guidance · Q1 2026 · Filed May 7, 2026
Watch
Real revenue, real growth, public guidance — but it's still a one-product story with manufacturing constraints.
You just finished
Chapter 1 · GROWTH
Amtagvi Is Real Revenue
you now read: money coming in (revenue)
Up next
Then
Chapter 3 · MOAT
The Manufacturing Moat
Chapter 4 · MANAGEMENT
An Interim CEO at the Inflection
Chapter 5 · BEHIND THE NUMBERS
The Story Behind the Numbers
Chapter 6 · RISK
The One-Product Risk