MarketPeel
Insider Trading Intelligence
JM

John G. Mchutchison

ASMB
CEO AND PRESIDENT · ASSEMBLY BIOSCIENCES, INC. · CIK 0001738125
FILING MIX · LIFETIME52%/48%
BUYS
11
SELLS
10
TOTAL VALUE
$439.0K
COMPANIES
1
ACTIVE SINCE
Mar 2020
HOLDINGS NOW
8,000
AVG SELL PX
$5.09
TRADE KIND
SHOWING 21 / 21
Trades · vs SPY
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Performance · forward returns vs SPY
10 backtested trades · 8 horizons · 1 pending
Forward-return performance of every backtestable P/S trade by John G. Mchutchison, 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
7d10+50.00%-0.55%-0.47%-0.09%-1.40%
14d10+40.00%+4.04%+0.12%+3.91%+1.92%
30d10+50.00%-0.38%+0.06%-0.44%-4.57%
60d10+50.00%-0.06%+0.49%-0.55%-5.38%
90d10+60.00%+1.05%+2.95%-1.90%-13.19%
180d10+60.00%-7.85%+7.13%-14.98%-15.39%
1y10+70.00%-10.56%+16.06%-26.61%-34.85%
2y10(1 pending)+55.56%-12.37%+29.02%-41.39%-64.36%
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
ASMB · 8,000 shares · as of Jun 4, 2026
083,750167,500251,250335,000202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 11 buys / 10 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ASMB
ASSEMBLY BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
8,0008,000Jun 4, 2026Jun 5, 2026View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
3,5003,500Jun 5, 2025Jun 9, 2025View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
SALE
757$9.85$7.5K18,347Mar 31, 2025Apr 15, 2025View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
2,7502,750May 29, 2024May 30, 2024View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
SALE
2,117$14.93$31.6K19,104May 23, 2024May 24, 2024View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
SALE
1,206$13.07$15.8K21,221Apr 1, 2024Apr 2, 2024View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
20,00020,000May 25, 2023May 30, 2023View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
SALE
25,972$1.04$27.0K169,160May 23, 2023May 24, 2023View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
117,500295,132May 22, 2023May 24, 2023View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
SALE
14,883$0.82$12.3K177,632Mar 30, 2023Mar 31, 2023View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
SALE
Chief Executive Officer
12,314$2.13$26.2K192,515Aug 8, 2022Aug 10, 2022View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
SALE
CEO and President
4,614$2.17$10.0K204,829Mar 30, 2022Mar 31, 2022View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
83,750209,443Mar 29, 2022Mar 31, 2022View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
83,75083,750Mar 29, 2022Mar 31, 2022View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
335,000335,000Mar 29, 2022Mar 31, 2022View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
SALE
CEO and President
12,156$3.60$43.8K125,693Aug 9, 2021Aug 10, 2021View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
305,000305,000Mar 29, 2021Apr 2, 2021View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
SALE
CEO and President
11,395$21.76$247.9K138,605Aug 7, 2020Aug 10, 2020View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
SALE
CEO and President
756$22.50$17.0K137,849Aug 7, 2020Aug 10, 2020View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
50,000150,000Mar 27, 2020Mar 31, 2020View →
ASMB
ASSEMBLY BIOSCIENCES, INC.
PURCHASEGRANT
Stock grant
100,000100,000Mar 27, 2020Mar 31, 2020View →
Other insiders · ASMB
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About this filer
CIK 0001738125
ROLE
CEO and President
PRIMARY
ASMB
COMPANIES
1
ACTIVE SINCE
Mar 2020
MARKETPEEL · /INSIDER/0001738125DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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