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Insider Trading Intelligence
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Simon Dingemans

AVTR
DIRECTOR · AVANTOR, INC. · CIK 0002104604
FILING MIX · LIFETIME100%/0%
BUYS
3
SELLS
0
TOTAL VALUE
$203.5K
COMPANIES
1
ACTIVE SINCE
Jan 2026
HOLDINGS NOW
31,495
AVG SELL PX
TRADE KIND
SHOWING 3 / 3
Trades · vs SPY
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Performance · forward returns vs SPY
1 backtested trades · 8 horizons · 4 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Simon Dingemans, 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+100.00%+4.40%+2.35%+2.04%+2.04%
14d1+0.00%-0.50%+3.01%-3.51%-3.51%
30d1+100.00%+14.57%
60d1+100.00%+26.00%+2.82%+23.18%+23.18%
90d1(1 pending)
180d1(1 pending)
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
AVTR · 31,495 shares · as of May 7, 2026
07,87415,74823,62131,495SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2026
2026
FLOW · 3 buys / 0 sellsCOVERAGE · 2 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
AVTR
AVANTOR, INC.
PURCHASEGRANT
Stock grant
25,27031,495May 7, 2026May 11, 2026View →
AVTR
AVANTOR, INC.
PURCHASE
25,000$8.14$203.5K25,000May 1, 2026May 4, 2026View →
AVTR
AVANTOR, INC.
PURCHASEGRANT
Stock grant
6,2256,225Jan 2, 2026Jan 12, 2026View →
Other insiders · AVTR
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About this filer
CIK 0002104604
ROLE
Director
PRIMARY
AVTR
COMPANIES
1
ACTIVE SINCE
Jan 2026
MARKETPEEL · /INSIDER/0002104604DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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