# How Gilead turned a $50M option into a $3.15B ADC bet

- slug: how-gilead-turned-a-50m-option-into-a-315b-adc-bet
- date: 2026-04-07
- category: Biotech & Life Sciences

Gilead didnt rush to buy Tubulis. It paid $50M in 2024 for an exclusive look at clinical data, watched TUB-040 post a 59% response rate at ESMO, then spent 14 months deciding whether the $3.15B price tag was worth it. That option structure not a bidding war is the real story.

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