InsiderTrades

Machatha Stephen

SEC CIK 1836354 · EDGAR

Buying vs selling by month open-market trades, last 31 months, ALDX
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
ALDXAldeyra Therapeutics, Inc.Chief Development Off 221.8K — $324.8K 62022-03-302025-08-11

Most active insiders at ALDX, 12 months

#InsiderTitleBoughtSold
1 Brady Todd CPres, CEO, Dir $418.4K—
2 DOUGLAS RICHARDDir $98.0K—
3 Alfieri MichaelPrincipal Financial Off $7,100—

Machatha Stephen made no open-market trades at ALDX in the last 12 months.

Transactions 6

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2025-08-13 2025-08-11 ALDX Aldeyra Therapeutics, Inc. Machatha Stephen Chief Development Off S - Sale $5.15 -22.1K 221.8K -9% -$113.7K
2024-08-14 2024-08-12 ALDX Aldeyra Therapeutics, Inc. Machatha Stephen Chief Development Off S - Sale $4.74 -16.0K 236.8K -6% -$76.0K
A 2024-04-17 2024-03-12 ALDX Aldeyra Therapeutics, Inc. Machatha Stephen Chief Development Off S - Sale $3.16 -11.5K 252.8K -4% -$36.5K
DM 2024-03-12 2024-03-11+ ALDX Aldeyra Therapeutics, Inc. Machatha Stephen Chief Development Off S - Sale $3.31 -29.8K 255.0K -10% -$98.6K
D 2022-07-19 2022-07-15 ALDX Aldeyra Therapeutics, Inc. Machatha Stephen Chief Development Off A - Grant $0.00 +185.6K 273.3K +212% $0
D 2022-04-01 2022-03-30 ALDX Aldeyra Therapeutics, Inc. Machatha Stephen Chief Development Off A - Grant $0.00 +64.4K 87.7K +277% $0

Purchase Sale Sale after option exercise All abbreviations