MarketPeel
Insider Trading Intelligence
JD

Jerome Benedict Durso

ALT
CEO-ELECT · ALTIMMUNE, INC. · CIK 0001698665
FILING MIX · LIFETIME100%/0%
BUYS
7
SELLS
0
TOTAL VALUE
$169.5K
COMPANIES
1
ACTIVE SINCE
Feb 2025
HOLDINGS NOW
47,500
AVG SELL PX
TRADE KIND
SHOWING 7 / 7
Trades · vs SPY
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Performance · forward returns vs SPY
3 backtested trades · 8 horizons · 8 pending
Forward-return performance of every backtestable P/S trade by Jerome Benedict Durso, 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
7d3+33.33%-1.41%+0.70%-2.11%+0.37%
14d3+33.33%+0.71%+1.23%-0.53%-1.63%
30d3+33.33%-1.32%+2.69%-4.01%-3.93%
60d3+33.33%-3.33%+4.16%-8.04%-8.04%
90d3+0.00%-13.91%+4.39%-15.73%-15.73%
180d3(2 pending)+0.00%-34.78%+9.04%-43.82%-43.82%
1y3(3 pending)
2y3(3 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
ALT · 47,500 shares · as of Apr 1, 2026
0456,100912,2001,368,3001,824,4002026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2025
2025
2025
2025
2026
2026
FLOW · 7 buys / 0 sellsCOVERAGE · 6 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ALT
ALTIMMUNE, INC.
PURCHASE
President and CEO
15,000$3.14$47.1K47,500Apr 1, 2026Apr 1, 2026View →
ALT
ALTIMMUNE, INC.
PURCHASE
President and CEO
20,000$3.54$70.8K32,500Mar 6, 2026Mar 9, 2026View →
ALT
ALTIMMUNE, INC.
PURCHASE
12,500$4.13$51.6K12,500Dec 22, 2025Dec 22, 2025View →
ALT
ALTIMMUNE, INC.
PURCHASEGRANT
Stock grant
1,824,4001,824,400Dec 1, 2025Dec 1, 2025View →
ALT
ALTIMMUNE, INC.
PURCHASEGRANT
Stock grant
633,700633,700Dec 1, 2025Dec 1, 2025View →
ALT
ALTIMMUNE, INC.
PURCHASEGRANT
Stock grant
48,80048,800Sep 25, 2025Sep 29, 2025View →
ALT
ALTIMMUNE, INC.
PURCHASEGRANT
Stock grant
69,80069,800Feb 24, 2025Feb 25, 2025View →
Other insiders · ALT
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About this filer
CIK 0001698665
ROLE
CEO-elect
PRIMARY
ALT
COMPANIES
1
ACTIVE SINCE
Feb 2025
MARKETPEEL · /INSIDER/0001698665DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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