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Ewout Leeuwenburg

WMS
SVP, INTERNATIONAL · ADVANCED DRAINAGE SYSTEMS, INC. · CIK 0001614369
FILING MIX · LIFETIME29%/71%
BUYS
4
SELLS
10
TOTAL VALUE
$4.25M
COMPANIES
1
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
43,050
AVG SELL PX
$46.63
TRADE KIND
SHOWING 14 / 14
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
3 backtested trades · 8 horizonsHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Ewout Leeuwenburg, 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+0.00%+6.63%+1.93%+4.69%+3.08%—
14d3+100.00%-2.89%-3.08%+0.19%-1.91%—
30d3+33.33%-5.47%-7.08%+1.61%+3.12%—
60d3+33.33%-2.35%-1.17%-1.18%+4.51%—
90d3+33.33%+11.96%+5.30%+6.66%+11.21%—
180d3+0.00%+45.30%+14.09%+31.21%+38.77%—
1y3+0.00%+139.45%+33.23%+106.21%+113.75%—
2y3+0.00%+149.16%+38.99%+110.17%+108.04%—
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
WMS · 43,050 shares · as of May 28, 2020
021,82943,65765,48687,314SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
FLOW · 4 buys / 10 sellsCOVERAGE · 2 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
SALE
SVP, International
4,268——2,134May 28, 2020Jun 1, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
SALE
SVP, International
15,646——0May 28, 2020Jun 1, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
SALE
SVP, International
21,520$45.62$981.7K43,450May 28, 2020Jun 1, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
PURCHASE
SVP, International
2,006$27.44$55.0K64,970May 28, 2020Jun 1, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
PURCHASE
SVP, International
15,646$24.20$378.6K58,696May 28, 2020Jun 1, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
SALE
SVP, International
2,006——4,010May 28, 2020Jun 1, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
PURCHASE
SVP, International
4,268$25.75$109.9K62,964May 28, 2020Jun 1, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
SALE
SVP, International
400$46.27$18.5K43,050May 28, 2020Jun 1, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
SALE
SVP, International
291$44.96$13.1K43,050May 23, 2020May 27, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
SALE
SVP, International
263$44.96$11.8K43,341May 22, 2020May 27, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
SALE
SVP, International
43,710——0Feb 12, 2020Feb 14, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
PURCHASE
SVP, International
43,710$13.64$596.2K87,314Feb 12, 2020Feb 14, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
SALE
SVP, International
43,710$47.16$2.06M43,604Feb 12, 2020Feb 14, 2020 ↗View →
WMS
ADVANCED DRAINAGE SYSTEMS, INC.
SALE
SVP, International
606$45.77$27.7K43,604Feb 8, 2020Feb 11, 2020 ↗View →
Other insiders · WMS
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About this filer
CIK 0001614369
ROLE
SVP, International
PRIMARY
WMS
COMPANIES
1
ACTIVE SINCE
Feb 2020
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