ZENAS BIOPHARMA INC (ZBIO) — large price moves
Health Care · NASDAQ
Single sessions where ZBIO closed 10% or more away from the previous close, between 2025-10-08 and 2026-10-08. Each one lists the events filed in the 5 days ending at that session, in date order.
Of the 17 moves listed, 2 have at least one filed event in the 5 days ending at the session, and 15 have none. Across the catalog most large moves have nothing filed near them, so an empty list is an ordinary result and not a gap.
Moves
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2026-09-23 -10.3% $33.05 to $29.63 filed events in the 5 days to 2026-09-23
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2026-07-01 +10.3% $25.38 to $28.00 filed events in the 5 days to 2026-07-01
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2026-06-25 +13.2% $21.80 to $24.67 filed events in the 5 days to 2026-06-25
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2026-06-12 +11.5% $17.76 to $19.80 filed events in the 5 days to 2026-06-12
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2026-05-04 +11.4% $19.36 to $21.56 filed events in the 5 days to 2026-05-04
- 2026-04-29 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $616,700Source: SEC Form 4
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2026-04-30 +10.1% $17.55 to $19.32 filed events in the 5 days to 2026-04-30
- 2026-04-28 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $450,500Source: SEC Form 4
- 2026-04-29 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $616,700Source: SEC Form 4
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2026-03-27 -17.8% $22.16 to $18.21 filed events in the 5 days to 2026-03-27
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2026-02-12 +12.2% $23.27 to $26.11 filed events in the 5 days to 2026-02-12
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2026-01-30 -12.0% $20.88 to $18.37 filed events in the 5 days to 2026-01-30
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2026-01-15 -11.7% $22.56 to $19.93 filed events in the 5 days to 2026-01-15
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2026-01-12 +23.0% $16.08 to $19.78 filed events in the 5 days to 2026-01-12
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2026-01-05 -51.9% $34.50 to $16.61 filed events in the 5 days to 2026-01-05
This session's step also clears the level at which a share-count change and a price change look alike on price alone, and no split was recorded for it. The figures are shown as stored; the basis is not confirmed.
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2025-12-22 +17.1% $36.15 to $42.33 filed events in the 5 days to 2025-12-22
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2025-12-16 +13.2% $32.59 to $36.89 filed events in the 5 days to 2025-12-16
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2025-12-15 -19.7% $40.59 to $32.59 filed events in the 5 days to 2025-12-15
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2025-10-27 +33.1% $23.90 to $31.80 filed events in the 5 days to 2025-10-27
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
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2025-10-16 -10.3% $26.99 to $24.21 filed events in the 5 days to 2025-10-16
No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
These are events filed near a session, listed by date. They are not ranked, and no connection between an event and a price move is stated or implied.
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Informational only — NOT financial advice. Price moves are computed from stored daily closes; filed events come from their own sources with their own dates.