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NASDAQ:ZBIO 22 December 2025 - 6 January 2026

Zenas BioPharma stock slides again premarket after INDIGO Phase 3 data sparks fresh scrutiny

Zenas BioPharma stock slides again premarket after INDIGO Phase 3 data sparks fresh scrutiny

Zenas BioPharma shares dropped 5.8% to $15.66 in premarket trading Tuesday, extending a 52% plunge after Phase 3 data for obexelimab in IgG4-related disease. The drug met its main goal but fell short of results seen with Amgen’s Uplizna, prompting Morgan Stanley to downgrade the stock and cut its price target. Zenas plans to file for FDA approval in Q2 2026.
6 January 2026
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Zenas BioPharma (ZBIO) stock steadies in premarket after 8% slide as INDIGO trial timing stays in focus

Zenas BioPharma (ZBIO) stock steadies in premarket after 8% slide as INDIGO trial timing stays in focus

Zenas BioPharma shares were unchanged at $39.05 in premarket trading Tuesday after falling 8.1% Monday. The stock is down about 12% from its December 24 high as investors await Phase 3 INDIGO trial results expected around year-end. Monday’s session saw shares dip to $38.96 before closing at $39.05. Technical support is near $37.78, with resistance just above $41.
30 December 2025
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Zenas BioPharma (ZBIO) Stock Hits a Record High on Dec. 22, 2025 as INDIGO Phase 3 Catalyst Nears — Latest News, Analyst Forecasts, and What’s Next

Zenas BioPharma (ZBIO) Stock Hits a Record High on Dec. 22, 2025 as INDIGO Phase 3 Catalyst Nears — Latest News, Analyst Forecasts, and What’s Next

Zenas BioPharma shares jumped about 14% to $41.23 on December 22, 2025, hitting a record high of $41.67 ahead of expected Phase 3 INDIGO trial results for obexelimab in IgG4-related disease. Citi and Wedbush both reiterated bullish ratings and price targets, citing the upcoming clinical data as a near-term catalyst.
22 December 2025
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