MarketPeel
Insider Trading Intelligence
WC

William D. Clark

ALDX
DIRECTOR · ALDEYRA THERAPEUTICS, INC. · CIK 0001355415
FILING MIX · LIFETIME100%/0%
BUYS
8
SELLS
0
TOTAL VALUE
$5.0K
COMPANIES
2
ACTIVE SINCE
Aug 2021
HOLDINGS NOW
83,500
AVG SELL PX
TRADE KIND
SHOWING 8 / 8
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
1 backtested trades · 8 horizons · 1 pending
Forward-return performance of every backtestable P/S trade by William D. Clark, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d1+100.00%+10.98%+2.94%+8.04%+8.04%
14d1+100.00%+20.39%+4.73%+15.66%+15.66%
30d1+100.00%+34.12%+4.20%+29.92%+29.92%
60d1+100.00%+124.31%-4.23%+128.55%+128.55%
90d1+0.00%-52.55%-9.36%-43.19%-43.19%
180d1+0.00%-67.06%+7.83%-74.89%-74.89%
1y1+100.00%+5.88%+19.93%-14.04%-14.04%
2y1(1 pending)
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ALDX · 70,000 shares · as of Jun 9, 2026
019,19038,38057,57076,7602026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 8 buys / 0 sellsCOVERAGE · 20 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ALDX
ALDEYRA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
70,00070,000Jun 9, 2026Jun 11, 2026View →
ALDX
ALDEYRA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
2,3232,323Jun 9, 2026Jun 11, 2026View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
13,50013,500Nov 20, 2025Nov 24, 2025View →
ALDX
ALDEYRA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
76,76076,760Apr 17, 2025Apr 18, 2025View →
IBIO
IBIO, INC.
PURCHASE
1,838$2.72$5.0K1,838Jan 10, 2025Jan 13, 2025View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
18,90018,900Nov 21, 2024Nov 25, 2024View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
109,000109,000Dec 9, 2021Dec 13, 2021View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
100,000100,000Aug 23, 2021Aug 25, 2021View →
Other insiders · ALDX
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About this filer
CIK 0001355415
ROLE
Director
PRIMARY
ALDX
COMPANIES
2
ACTIVE SINCE
Aug 2021
MARKETPEEL · /INSIDER/0001355415DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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