MarketPeel
Insider Trading Intelligence
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Jason B. Shandell

AMPH
PRESIDENT AND GENERAL COUNSEL · AMPHASTAR PHARMACEUTICALS, INC. · CIK 0001611148
FILING MIX · LIFETIME35%/65%
BUYS
6
SELLS
11
TOTAL VALUE
$2.59M
COMPANIES
1
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
179,276
AVG SELL PX
$17.90
TRADE KIND
SHOWING 17 / 17
Trades · vs SPY
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Performance · forward returns vs SPY
4 backtested trades · 8 horizonsHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Jason B. Shandell, 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
7d4+50.00%+0.64%+1.27%-0.64%-1.81%
14d4+75.00%-2.79%+1.26%-4.04%-6.45%
30d4+75.00%-16.20%-9.16%-7.04%-10.30%
60d4+100.00%-22.26%-18.85%-3.41%-3.48%
90d4+100.00%-14.20%-14.65%+0.45%+1.25%
180d4+0.00%+8.58%-0.15%+8.73%+5.44%
1y4+75.00%-0.21%+18.59%-18.80%-21.99%
2y4+0.00%+29.94%+41.28%-11.35%-12.29%
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
AMPH · 179,276 shares · as of Mar 17, 2020
047,14494,288141,431188,575SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
FLOW · 6 buys / 11 sellsCOVERAGE · 1 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
SALE
President and General Counsel
9,299$14.50$134.8K179,276Mar 17, 2020Mar 18, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
150,958150,958Mar 16, 2020Mar 18, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
64,466188,575Mar 16, 2020Mar 18, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
SALE
President and General Counsel
7,893$13.03$102.8K124,109Mar 16, 2020Mar 18, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
SALE
President and General Counsel
6,896$14.19$97.9K132,002Mar 15, 2020Mar 17, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
SALE
President and General Counsel
6,85346,944Feb 7, 2020Feb 7, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
PURCHASE
President and General Counsel
6,853$14.40$98.7K145,751Feb 7, 2020Feb 7, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
SALE
President and General Counsel
6,853$19.88$136.3K138,898Feb 7, 2020Feb 7, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
SALE
President and General Counsel
21,933$19.83$435.0K138,898Feb 6, 2020Feb 7, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
PURCHASE
President and General Counsel
21,933$14.40$315.8K160,831Feb 6, 2020Feb 7, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
SALE
President and General Counsel
21,93353,797Feb 6, 2020Feb 7, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
SALE
President and General Counsel
15,61575,730Feb 5, 2020Feb 7, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
SALE
President and General Counsel
15,615$19.57$305.6K138,898Feb 5, 2020Feb 7, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
PURCHASE
President and General Counsel
15,615$14.40$224.9K154,513Feb 5, 2020Feb 7, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
SALE
President and General Counsel
25,0009,149Jan 8, 2020Jan 10, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
SALE
President and General Counsel
25,000$18.44$461.0K138,898Jan 8, 2020Jan 10, 2020View →
AMPH
AMPHASTAR PHARMACEUTICALS, INC.
PURCHASE
President and General Counsel
25,000$10.93$273.3K163,898Jan 8, 2020Jan 10, 2020View →
Other insiders · AMPH
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About this filer
CIK 0001611148
ROLE
President and General Counsel
PRIMARY
AMPH
COMPANIES
1
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001611148DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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