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Insider Trading Intelligence
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William Earl Cooper

MRAM
CHIEF FINANCIAL OFFICER · EVERSPIN TECHNOLOGIES INC. · CIK 0002051031
FILING MIX · LIFETIME22%/78%
BUYS
2
SELLS
7
TOTAL VALUE
$711.6K
COMPANIES
1
ACTIVE SINCE
Feb 2025
HOLDINGS NOW
149,131
AVG SELL PX
$20.71
TRADE KIND
SHOWING 9 / 9
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
3 backtested trades · 8 horizons · 9 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by William Earl Cooper, 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%+31.15%+1.48%+29.67%+2.81%
14d3+0.00%+45.62%+3.11%+28.19%+28.19%
30d3+33.33%+54.80%+4.44%+50.36%+36.48%
60d3+66.67%+50.60%-0.07%-17.39%-17.39%
90d3(1 pending)+50.00%+57.55%+4.34%+53.21%+53.21%
180d3(2 pending)+0.00%+59.77%+8.01%+51.76%+51.76%
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
MRAM · 149,131 shares · as of Jul 6, 2026
043,39586,790130,184173,5792026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2025
2025
2025
2025
2026
2026
2026
FLOW · 2 buys / 7 sellsCOVERAGE · 7 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
MRAM
EVERSPIN TECHNOLOGIES INC.
SALE
Chief Financial Officer
1,821$19.65$35.8K149,131Jul 6, 2026Jul 8, 2026View →
MRAM
EVERSPIN TECHNOLOGIES INC.
SALE
Chief Financial Officer
1,549$22.34$34.6K149,481Jul 1, 2026Jul 6, 2026View →
MRAM
EVERSPIN TECHNOLOGIES INC.
SALE
Chief Financial Officer
10,000$29.13$291.3K151,030May 20, 2026May 21, 2026View →
MRAM
EVERSPIN TECHNOLOGIES INC.
SALE
Chief Financial Officer
11,000$21.75$239.3K161,030May 6, 2026May 7, 2026View →
MRAM
EVERSPIN TECHNOLOGIES INC.
SALE
Chief Financial Officer
1,627$8.80$14.3K171,952Apr 2, 2026Jul 8, 2026View →
MRAM
EVERSPIN TECHNOLOGIES INC.
SALE
Chief Financial Officer
1,549$9.20$14.3K172,030Apr 1, 2026Apr 2, 2026View →
MRAM
EVERSPIN TECHNOLOGIES INC.
PURCHASEGRANT
Stock grant
80,386173,579Mar 31, 2026Apr 2, 2026View →
MRAM
EVERSPIN TECHNOLOGIES INC.
SALE
Chief Financial Officer
6,807$12.06$82.1K93,193Jan 7, 2026Jan 8, 2026View →
MRAM
EVERSPIN TECHNOLOGIES INC.
PURCHASEGRANT
Stock grant
100,000100,000Feb 24, 2025Feb 25, 2025View →
Other insiders · MRAM
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About this filer
CIK 0002051031
ROLE
Chief Financial Officer
PRIMARY
MRAM
COMPANIES
1
ACTIVE SINCE
Feb 2025
MARKETPEEL · /INSIDER/0002051031DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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