NASDAQ:QMCO

Quantum Stock Insider Trading

etoro logo Buy QMCO
*Your capital is at risk
$14.41
+0.440 (+3.15%)
At Close: Jun 16, 2026

Quantum Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -3.94. In total, the insiders bought 35.31M and sold 59.66M QMCO shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power

(Last 100 transactions)
-3.94
Buy 35.31M shares
Sell 59.66M shares
51% Buy Activity
Weak Negative Correlation
Buy Signal Low Confidence
Jun 04, 2026

Analysis Breakdown:

  • Weakened by a contradictory negative Insider Power Score.
  • Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date Type Person Role Amount
Jan 16, 2025
Sell
Common Stock
S-Sale
Cabrera Brian E
SVP Chief Admin Ofcr & Secy
Officer 1 996
Value: $71.2K
Jan 16, 2025
Sell
Common Stock
S-Sale
Gianella Kenneth P.
Chief Financial Officer
C-Suite Officer 1 487
Value: $53.1K
Jan 16, 2025
Sell
Common Stock
S-Sale
Spanjaard Henk Jan
Chief Revenue Officer
Officer 935
Value: $33.4K
Jan 16, 2025
Sell
Common Stock
S-Sale
Lerner James J
President & CEO
CEO / President 2 511
Value: $89.6K
Jan 03, 2025
Sell
Common Stock
S-Sale
Pacific Investment Management Co Llc
10 Percent Owner
10% Owner 3 783
Value: $232.7K
Jan 03, 2025
Buy
Common Stock
X-InTheMoney
Pacific Investment Management Co Llc
10 Percent Owner
10% Owner 63 435
Value: $393.3K
Jan 03, 2025
Sell
Common Stock
S-Sale
Pacific Investment Management Co Llc
10 Percent Owner
10% Owner 6 393
Value: $393.3K
Jan 03, 2025
Sell
Common Stock
S-Sale
Pacific Investment Management Co Llc
10 Percent Owner
10% Owner 92 970
Value: $5.72M
Jan 03, 2025
Buy
Common Stock
X-InTheMoney
Pacific Investment Management Co Llc
10 Percent Owner
10% Owner 114 155
Value: $6.19M
Jan 03, 2025
Sell
Common Stock
S-Sale
Pacific Investment Management Co Llc
10 Percent Owner
10% Owner 100 578
Value: $6.19M
Jan 03, 2025
Sell
Warrants (right to buy)
X-InTheMoney
Pacific Investment Management Co Llc
10 Percent Owner
10% Owner 224 059
Value: $13.8M
Jan 03, 2025
Buy
Common Stock
X-InTheMoney
Pacific Investment Management Co Llc
10 Percent Owner
10% Owner 18 750
Value: $116.3K
Jan 03, 2025
Sell
Common Stock
S-Sale
Pacific Investment Management Co Llc
10 Percent Owner
10% Owner 22 582
Value: $1.39M
Nov 08, 2024
Sell
Common Stock
S-Sale
Cabrera Brian E
SVP Chief Admin Ofcr & Secy
Officer 291
Value: $1K
Nov 08, 2024
Sell
Common Stock
S-Sale
Nash Laura A.
Chief Accounting Officer
Officer 328
Value: $1K
Nov 08, 2024
Sell
Common Stock
S-Sale
Lerner James J
President & CEO
CEO / President 3 681
Value: $16.3K
Nov 08, 2024
Sell
Common Stock
S-Sale
Spanjaard Henk Jan
Chief Revenue Officer
Officer 218
Value: $966
Nov 08, 2024
Sell
Common Stock
S-Sale
Gianella Kenneth P.
Chief Financial Officer
C-Suite Officer 1 332
Value: $6K
Nov 08, 2024
Sell
Common Stock
S-Sale
Cabrera Brian E
SVP Chief Admin Ofcr & Secy
Officer 2 118
Value: $9K
Nov 08, 2024
Sell
Common Stock
S-Sale
Cabrera Brian E
SVP Chief Admin Ofcr & Secy
Officer 2 118
Value: $9K
Nov 08, 2024
Sell
Common Stock
S-Sale
Gianella Kenneth P.
Chief Financial Officer
C-Suite Officer 1 332
Value: $6K
Nov 08, 2024
Sell
Common Stock
S-Sale
Spanjaard Henk Jan
Chief Revenue Officer
Officer 218
Value: $966
Nov 08, 2024
Sell
Common Stock
S-Sale
Lerner James J
President & CEO
CEO / President 3 681
Value: $16.3K
Nov 08, 2024
Sell
Common Stock
S-Sale
Nash Laura A.
Chief Accounting Officer
Officer 328
Value: $1K
Nov 08, 2024
Sell
Common Stock
S-Sale
Cabrera Brian E
SVP Chief Admin Ofcr & Secy
Officer 291
Value: $1K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

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ABOUT QUANTUM CORPORATION
Quantum
Quantum Corporation provides products for storing and managing digital video and unstructured data in the Americas, Europe, the Middle East, Africa, and the Asia Pacific. The company offers CatDV, an asset management and workflow orchestration platform that provides asset management, automation, and collaboration tools for organization that manages large volumes of digital media; StorNext software systems that enable high-speed ingest, editing, p...
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