MarketPeel
Insider Trading Intelligence
TK

Thomas Braxton King

ACHV
EXECUTIVE CHAIRMAN · ACHIEVE LIFE SCIENCES, INC. · CIK 0001279309
FILING MIX · LIFETIME78%/22%
BUYS
7
SELLS
2
TOTAL VALUE
$387.4K
COMPANIES
1
ACTIVE SINCE
Mar 2023
HOLDINGS NOW
455,000
AVG SELL PX
$2.77
TRADE KIND
SHOWING 9 / 9
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
1 backtested trades · 8 horizons · 2 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Thomas Braxton King, 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+0.00%+13.26%+1.31%+11.95%+11.95%
14d1+0.00%+2.87%+2.02%+0.84%+0.84%
30d1+0.00%+12.90%+3.10%+9.81%+9.81%
60d1+0.00%+83.15%+5.27%+77.88%+77.88%
90d1+0.00%+74.91%+5.36%+69.55%+69.55%
180d1+0.00%+55.20%+4.81%+50.39%+50.39%
1y1(1 pending)
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
ACHV · 455,000 shares · as of Sep 4, 2025
0113,750227,500341,250455,00020242025SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
FLOW · 7 buys / 2 sellsCOVERAGE · 11 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ACHV
ACHIEVE LIFE SCIENCES, INC.
SALE
139,858$2.77$387.4K315,142Sep 4, 2025Sep 8, 2025View →
ACHV
ACHIEVE LIFE SCIENCES, INC.
SALE
455,0000Sep 4, 2025Sep 8, 2025View →
ACHV
ACHIEVE LIFE SCIENCES, INC.
PURCHASE
455,000455,000Sep 4, 2025Sep 8, 2025View →
ACHV
ACHIEVE LIFE SCIENCES, INC.
PURCHASEGRANT
Stock grant
31,50031,500Jun 6, 2025Jun 10, 2025View →
ACHV
ACHIEVE LIFE SCIENCES, INC.
PURCHASEGRANT
Stock grant
195,000195,000Jan 13, 2025Jan 14, 2025View →
ACHV
ACHIEVE LIFE SCIENCES, INC.
PURCHASEGRANT
Stock grant
455,000455,000Jan 13, 2025Jan 14, 2025View →
ACHV
ACHIEVE LIFE SCIENCES, INC.
PURCHASEGRANT
Stock grant
31,50031,500Jan 22, 2024Jan 24, 2022View →
ACHV
ACHIEVE LIFE SCIENCES, INC.
PURCHASEGRANT
Stock grant
24,00024,000Mar 29, 2023Mar 30, 2023View →
ACHV
ACHIEVE LIFE SCIENCES, INC.
PURCHASEGRANT
Stock grant
23,25023,250Mar 29, 2023Jun 9, 2023View →
Other insiders · ACHV
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About this filer
CIK 0001279309
ROLE
Executive Chairman
PRIMARY
ACHV
COMPANIES
1
ACTIVE SINCE
Mar 2023
MARKETPEEL · /INSIDER/0001279309DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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