MarketPeel
Insider Trading Intelligence
WD

William Doran

SEIC
DIRECTOR · SEI INVESTMENTS CO · CIK 0001191719
FILING MIX · LIFETIME52%/48%
BUYS
16
SELLS
15
TOTAL VALUE
$6.27M
COMPANIES
1
ACTIVE SINCE
Dec 2019
HOLDINGS NOW
618,802
AVG SELL PX
$70.83
TRADE KIND
SHOWING 31 / 31
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
5 backtested trades · 8 horizons · 3 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by William Doran, 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
7d5+100.00%-1.53%+0.10%-1.63%-1.44%
14d5+40.00%+0.91%+0.67%+0.24%+0.33%
30d5+20.00%+1.52%+0.66%+0.86%+0.93%
60d5+40.00%+1.02%+3.18%-2.16%-2.54%
90d5+60.00%-1.28%+2.63%-3.91%-2.72%
180d5+20.00%+8.95%+8.62%+0.34%-2.91%
1y5(1 pending)+50.00%+7.86%+14.37%-6.50%-13.26%
2y5(2 pending)+33.33%+15.58%+16.94%-1.37%+0.13%
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
SEIC · 618,802 shares · as of Jun 9, 2026
0169,979339,958509,936679,9152020202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2019
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 · 16 buys / 15 sellsCOVERAGE · 27 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SEIC
SEI INVESTMENTS CO
SALE
5,000$90.50$452.5K618,802Jun 9, 2026Jun 11, 2026View →
SEIC
SEI INVESTMENTS CO
SALE
7,000$83.85$587.0K623,802Dec 22, 2025Dec 23, 2025View →
SEIC
SEI INVESTMENTS CO
PURCHASEGRANT
Stock grant
2,266630,802Dec 12, 2025Dec 16, 2025View →
SEIC
SEI INVESTMENTS CO
PURCHASE
10,000$53.34$533.4K628,536Nov 17, 2025Nov 18, 2025View →
SEIC
SEI INVESTMENTS CO
SALE
5,0000Nov 17, 2025Nov 18, 2025View →
SEIC
SEI INVESTMENTS CO
SALEGRANT
Gift
47,500618,536Dec 31, 2024Jan 3, 2025View →
SEIC
SEI INVESTMENTS CO
PURCHASEGRANT
Stock grant
2,175663,561Dec 12, 2024Dec 16, 2024View →
SEIC
SEI INVESTMENTS CO
SALE
5,000$81.80$409.0K661,386Nov 26, 2024Nov 27, 2024View →
SEIC
SEI INVESTMENTS CO
SALE
5,0000Nov 20, 2024Nov 21, 2024View →
SEIC
SEI INVESTMENTS CO
PURCHASE
5,000$40.64$203.2K661,386Nov 20, 2024Nov 21, 2024View →
SEIC
SEI INVESTMENTS CO
PURCHASE
5,000$40.64$203.2K666,386Nov 20, 2024Nov 21, 2024View →
SEIC
SEI INVESTMENTS CO
SALE
5,000$67.04$335.2K656,386Jun 24, 2024Jun 25, 2024View →
SEIC
SEI INVESTMENTS CO
SALEGRANT
Gift
4,725661,386Dec 27, 2023Dec 27, 2023View →
SEIC
SEI INVESTMENTS CO
SALEGRANT
Gift
7,500666,111Dec 26, 2023Dec 27, 2023View →
SEIC
SEI INVESTMENTS CO
PURCHASEGRANT
Stock grant
1,000673,611Dec 15, 2023Dec 19, 2023View →
SEIC
SEI INVESTMENTS CO
PURCHASEGRANT
Stock grant
4,0004,000Dec 15, 2023Dec 19, 2023View →
SEIC
SEI INVESTMENTS CO
SALE
10,0000Dec 5, 2023Dec 7, 2023View →
SEIC
SEI INVESTMENTS CO
PURCHASE
10,000$33.76$337.6K672,611Dec 5, 2023Dec 7, 2023View →
SEIC
SEI INVESTMENTS CO
SALEGRANT
Gift
320662,611Feb 6, 2023Feb 28, 2023View →
SEIC
SEI INVESTMENTS CO
SALEGRANT
Gift
7,750662,165Dec 28, 2022Jan 4, 2023View →
SEIC
SEI INVESTMENTS CO
PURCHASE
10,000$22.45$224.5K669,915Dec 6, 2022Dec 8, 2022View →
SEIC
SEI INVESTMENTS CO
PURCHASE
10,0000Dec 6, 2022Dec 8, 2022View →
SEIC
SEI INVESTMENTS CO
PURCHASEGRANT
Stock grant
766662,931Dec 5, 2022Feb 28, 2023View →
SEIC
SEI INVESTMENTS CO
PURCHASEGRANT
Stock grant
3,7503,750Dec 5, 2022Feb 28, 2023View →
SEIC
SEI INVESTMENTS CO
PURCHASE
10,000$60.46$604.6K10,000Dec 10, 2021Dec 14, 2021View →
SEIC
SEI INVESTMENTS CO
SALE
10,000$63.27$632.7K659,915May 6, 2021May 7, 2021View →
SEIC
SEI INVESTMENTS CO
PURCHASE
10,000$56.54$565.4K10,000Dec 8, 2020Dec 10, 2020View →
SEIC
SEI INVESTMENTS CO
PURCHASE
10,000$23.86$238.6K679,915Nov 25, 2020Nov 30, 2020View →
SEIC
SEI INVESTMENTS CO
PURCHASE
10,000$23.86$238.6K0Nov 25, 2020Nov 30, 2020View →
SEIC
SEI INVESTMENTS CO
SALE
10,000$56.70$567.0K669,915Nov 25, 2020Nov 30, 2020View →
SEIC
SEI INVESTMENTS CO
SALE
2,000$66.63$133.3K669,915Dec 19, 2019Dec 20, 2019View →
Other insiders · SEIC
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About this filer
CIK 0001191719
ROLE
Director
PRIMARY
SEIC
COMPANIES
1
ACTIVE SINCE
Dec 2019
MARKETPEEL · /INSIDER/0001191719DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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