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Insider Trading Intelligence
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Brian E. Cabrera

QMCO
SVP CHIEF ADMIN OFCR & SECY · QUANTUM CORP /DE/ · CIK 0001314901
FILING MIX · LIFETIME33%/67%
BUYS
8
SELLS
16
TOTAL VALUE
$190.3K
COMPANIES
1
ACTIVE SINCE
Oct 2021
HOLDINGS NOW
28,736
AVG SELL PX
$2.69
TRADE KIND
SHOWING 24 / 24
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
11 backtested trades · 8 horizons · 5 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Brian E. Cabrera, 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
7d11+72.73%-8.51%-0.30%-8.21%-7.15%
14d11+54.55%+24.36%+1.24%+23.12%+2.64%
30d11+36.36%+65.31%+3.54%+61.78%+7.28%
60d11+63.64%+235.51%+3.17%+232.34%-14.13%
90d11+45.45%+86.99%+5.79%+81.20%+1.38%
180d11+54.55%+22.60%+6.95%+15.65%-24.07%
1y11+72.73%-17.26%+19.89%-37.15%-66.18%
2y11(5 pending)+83.33%-47.08%+50.44%-97.52%-92.71%
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
QMCO · 28,736 shares · as of Apr 21, 2025
096,409192,819289,228385,6372022202320242025SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
FLOW · 8 buys / 16 sellsCOVERAGE · 15 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
QMCO
QUANTUM CORP /DE/
PURCHASEGRANT
Stock grant
1,87429,814Apr 21, 2025Apr 23, 2025View →
QMCO
QUANTUM CORP /DE/
SALE
SVP Chief Admin Ofcr & Secy
1,078$9.65$10.4K28,736Apr 21, 2025Apr 23, 2025View →
QMCO
QUANTUM CORP /DE/
SALE
SVP Chief Admin Ofcr & Secy
1,996$35.68$71.2K27,940Jan 16, 2025Jan 17, 2025View →
QMCO
QUANTUM CORP /DE/
SALE
SVP Chief Admin Ofcr & Secy
2,118$4.43$9.4K30,227Nov 8, 2024Jan 17, 2025View →
QMCO
QUANTUM CORP /DE/
SALE
SVP Chief Admin Ofcr & Secy
291$4.45$1.3K29,936Nov 8, 2024Jan 17, 2025View →
QMCO
QUANTUM CORP /DE/
SALE
SVP Chief Admin Ofcr & Secy
5,387$4.43$23.9K26,958Nov 8, 2024Dec 5, 2024View →
QMCO
QUANTUM CORP /DE/
PURCHASEGRANT
Stock grant
13,750385,637Oct 1, 2024Oct 21, 2024View →
QMCO
QUANTUM CORP /DE/
PURCHASEGRANT
Stock grant
150,000371,887Jan 1, 2024Apr 23, 2024View →
QMCO
QUANTUM CORP /DE/
SALE
SVP Chief Admin Ofcr & Secy
5,543$0.47$2.6K221,887Nov 2, 2023Nov 3, 2023View →
QMCO
QUANTUM CORP /DE/
SALE
SVP Chief Admin Ofcr & Secy
942$0.59$559227,430Oct 4, 2023Oct 6, 2023View →
QMCO
QUANTUM CORP /DE/
SALE
SVP Chief Admin Ofcr & Secy
30,915$0.95$29.4K244,046May 2, 2023May 4, 2023View →
QMCO
QUANTUM CORP /DE/
SALE
SVP Chief Admin Ofcr & Secy
863$1.39$1.2K274,961Nov 2, 2022Nov 3, 2022View →
QMCO
QUANTUM CORP /DE/
SALEGRANT
Stock grant
8,325Nov 1, 2022Nov 2, 2022View →
QMCO
QUANTUM CORP /DE/
PURCHASEGRANT
Stock grant
25,000275,824Nov 1, 2022Nov 2, 2022View →
QMCO
QUANTUM CORP /DE/
SALE
SVP Chief Admin Ofcr & Secy
724$1.26$915250,824Oct 5, 2022Oct 6, 2022View →
QMCO
QUANTUM CORP /DE/
SALEGRANT
Stock grant
29,1370Jul 1, 2022Jul 6, 2022View →
QMCO
QUANTUM CORP /DE/
PURCHASEGRANT
Stock grant
87,500251,548Jul 1, 2022Jul 6, 2022View →
QMCO
QUANTUM CORP /DE/
SALE
Chief Legal & Ofcr; Corp Secy
20,952$1.88$39.5K164,048May 5, 2022May 9, 2022View →
QMCO
QUANTUM CORP /DE/
PURCHASEGRANT
Stock grant
5,000185,000Nov 1, 2021Nov 3, 2021View →
QMCO
QUANTUM CORP /DE/
SALEGRANT
Stock grant
5,0000Nov 1, 2021Nov 3, 2021View →
QMCO
QUANTUM CORP /DE/
PURCHASEGRANT
Stock grant
5,000185,000Nov 1, 2021Nov 2, 2021View →
QMCO
QUANTUM CORP /DE/
SALEGRANT
Stock grant
5,0000Nov 1, 2021Nov 2, 2021View →
QMCO
QUANTUM CORP /DE/
PURCHASEGRANT
Stock grant
5,000180,000Oct 1, 2021Oct 5, 2021View →
QMCO
QUANTUM CORP /DE/
SALEGRANT
Stock grant
5,0000Oct 1, 2021Oct 5, 2021View →
Other insiders · QMCO
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About this filer
CIK 0001314901
ROLE
SVP Chief Admin Ofcr & Secy
PRIMARY
QMCO
COMPANIES
1
ACTIVE SINCE
Oct 2021
MARKETPEEL · /INSIDER/0001314901DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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