MarketPeel
Insider Trading Intelligence
SM

Steven F. Mayer

ARAY
DIRECTOR · ACCURAY INC · CIK 0001280289
FILING MIX · LIFETIME90%/10%
BUYS
9
SELLS
1
TOTAL VALUE
$134.7K
COMPANIES
1
ACTIVE SINCE
Jun 2025
HOLDINGS NOW
1,545,620
AVG SELL PX
TRADE KIND
SHOWING 10 / 10
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 Steven F. Mayer, 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+100.00%+8.69%+0.40%+8.29%+7.91%
14d3+0.00%-6.14%-1.03%-5.11%-6.79%
30d3+0.00%-28.38%-5.23%-23.15%-23.84%
60d3+0.00%-17.26%+2.98%-20.24%-19.91%
90d3+0.00%-43.59%+8.31%-54.08%-54.08%
180d3(3 pending)
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
ARAY · 1,545,620 shares · as of Feb 20, 2026
0386,405772,8101,159,2151,545,6202026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2025
2025
2025
2026
FLOW · 9 buys / 1 sellsCOVERAGE · 4 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ARAY
ACCURAY INC
PURCHASE
54,875$0.56$30.9K1,545,620Feb 20, 2026Feb 23, 2026View →
ARAY
ACCURAY INC
PURCHASE
69,000$0.53$36.6K1,490,745Feb 19, 2026Feb 20, 2026View →
ARAY
ACCURAY INC
PURCHASE
126,125$0.53$67.2K1,421,745Feb 18, 2026Feb 20, 2026View →
ARAY
ACCURAY INC
PURCHASEGRANT
Stock grant
895,3911,295,620Nov 28, 2025Dec 2, 2025View →
ARAY
ACCURAY INC
PURCHASEGRANT
Stock grant
1,250,0001,250,000Nov 28, 2025Dec 2, 2025View →
ARAY
ACCURAY INC
PURCHASEGRANT
Stock grant
56,60356,603Nov 28, 2025Dec 2, 2025View →
ARAY
ACCURAY INC
PURCHASE
45,620400,229Nov 21, 2025Nov 25, 2025View →
ARAY
ACCURAY INC
SALE
45,6200Nov 21, 2025Nov 25, 2025View →
ARAY
ACCURAY INC
PURCHASEGRANT
Stock grant
354,609354,609Oct 31, 2025Nov 3, 2025View →
ARAY
ACCURAY INC
PURCHASEGRANT
Stock grant
45,62045,620Jun 30, 2025Jul 2, 2025View →
Other insiders · ARAY
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About this filer
CIK 0001280289
ROLE
Director
PRIMARY
ARAY
COMPANIES
1
ACTIVE SINCE
Jun 2025
MARKETPEEL · /INSIDER/0001280289DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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