Aldeyra Therapeutics, Inc. (ALDX) — large price moves

Health Care · NASDAQ

Single sessions where ALDX closed 10% or more away from the previous close, between 2025-10-20 and 2026-10-20. Each one lists the events filed in the 5 days ending at that session, in date order.

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Of the 20 moves listed, 5 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

2026-10-20 +10.4% $0.6651 to $0.7343 filed events in the 5 days to 2026-10-20

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.
2026-10-14 -12.2% $0.9 to $0.79 filed events in the 5 days to 2026-10-14

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.
2026-10-05 -21.0% $1.17 to $0.924 filed events in the 5 days to 2026-10-05

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.
2026-09-29 +13.8% $1.16 to $1.32 filed events in the 5 days to 2026-09-29

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.
2026-07-16 -10.4% $1.92 to $1.72 filed events in the 5 days to 2026-07-16

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.
2026-07-01 +14.1% $2.13 to $2.43 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.
2026-06-29 +12.0% $1.83 to $2.05 filed events in the 5 days to 2026-06-29

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.
2026-06-03 +13.4% $1.64 to $1.86 filed events in the 5 days to 2026-06-03
- 2026-06-03 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $418,450Source: SEC Form 4
2026-05-26 +14.8% $1.55 to $1.78 filed events in the 5 days to 2026-05-26

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.
2026-04-10 +11.9% $1.59 to $1.78 filed events in the 5 days to 2026-04-10

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.
2026-03-24 -16.1% $2.23 to $1.87 filed events in the 5 days to 2026-03-24
- 2026-03-19 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $98,000Source: SEC Form 4
2026-03-23 +23.2% $1.81 to $2.23 filed events in the 5 days to 2026-03-23
- 2026-03-18 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $7,100Source: SEC Form 4
- 2026-03-19 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $98,000Source: SEC Form 4
2026-03-19 +28.9% $1.42 to $1.83 filed events in the 5 days to 2026-03-19
- 2026-03-18 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $7,100Source: SEC Form 4
- 2026-03-19 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $98,000Source: SEC Form 4
2026-03-18 +14.5% $1.24 to $1.42 filed events in the 5 days to 2026-03-18
- 2026-03-18 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $7,100Source: SEC Form 4
2026-03-17 -70.7% $4.23 to $1.24 filed events in the 5 days to 2026-03-17

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.
2026-03-13 -11.7% $4.67 to $4.13 filed events in the 5 days to 2026-03-13

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.
2026-03-05 -10.5% $5.20 to $4.65 filed events in the 5 days to 2026-03-05

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.
2025-12-22 +11.7% $4.96 to $5.54 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.
2025-12-16 +33.1% $3.99 to $5.31 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.
2025-12-15 -12.1% $4.54 to $3.99 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.

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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See the full company profile: Aldeyra Therapeutics, Inc. (ALDX).

Informational only — NOT financial advice. Price moves are computed from stored daily closes; filed events come from their own sources with their own dates.