QMCO Quantum Corporation - Common Stock

NASDAQ · Technology · View on SEC EDGAR ↗
$21.74
Price · Aug 19, 2026
Fundamentals as of Aug 11, 2026

QMCO Stock Snapshot Price, market cap, P/E, EPS, ROE, debt/equity, 52-week range

Price
$21.74
Market Cap
$318M
P/E (TTM)
-2.7
EPS (TTM)
$-7.97
Revenue (TTM)
$280M
Div Yield
ROE
56.2%
Debt/Equity
-0.3
52W Range
$4 – $28

QMCO Stock Price Chart Daily OHLCV with technical indicators — pan, zoom, and customize your view

10-Year Performance Revenue, net income, margins and EPS trends

Revenue & Net Income $280M
4-point trend, -33.8%
2023-03-31 2026-03-31
EPS $-7.97
4-point trend, -2746.4%
2023-03-31 2026-03-31
Free Cash Flow $-40M
4-point trend, -126.4%
2023-03-31 2026-03-31
Margins -36.1%
4-point trend, +13.6%
2023-03-31 2026-03-31

Valuation P/E, P/S, P/B, EV/EBITDA ratios — is the stock expensive or cheap?

Metric
5Y trend
QMCO
Peer Median
P/E (TTM)
4-point trend, +99.3%
-2.7
29.5
P/S (TTM)
4-point trend, -95.1%
1.1
0.8
P/B
4-point trend, +98.6%
-1.6
1.7
EV / EBITDA
4-point trend, +95.8%
-18.6
Price / FCF
4-point trend, +98.6%
-8.0

Profitability Gross, operating and net margins; ROE, ROA, ROIC

Metric
5Y trend
QMCO
Peer Median
Gross Margin
4-point trend, +13.6%
36.9%
30.2%
Operating Margin
4-point trend, -39.2%
-8.8%
Net Profit Margin
4-point trend, -293.3%
-36.1%
-5.6%
ROA
4-point trend, -280.4%
-64.7%
-2.3%
ROE
4-point trend, +22.2%
56.2%
-2.4%
ROIC
4-point trend, -48.7%
17.2%

Financial Health Debt, liquidity, solvency — balance sheet strength

Metric
5Y trend
QMCO
Peer Median
Debt / Equity
4-point trend, -379.3%
-0.3
161.1
Current Ratio
4-point trend, -45.5%
0.5
1.5
Quick Ratio
4-point trend, -35.8%
0.4

Growth Revenue, EPS and net income growth: YoY, 3Y CAGR, 5Y CAGR

Metric
5Y trend
QMCO
Peer Median
Revenue YoY
4-point trend, -33.8%
2.0%
Revenue CAGR 3Y
4-point trend, -33.8%
-12.8%
Revenue CAGR 5Y
4-point trend, -33.8%
-4.4%

Per Share Metrics EPS, book value per share, cash flow per share, dividend per share

Metric
5Y trend
QMCO
Peer Median
EPS (Diluted)
4-point trend, -2746.4%
$-7.97

Capital Efficiency Asset turnover, inventory turnover, receivables turnover

Metric
5Y trend
QMCO
Peer Median

QMCO Analyst Consensus Bullish and bearish analyst opinions, 12-month price target, upside

BUY 8 analysts
  • Strong Buy 2 25.0%
  • Buy 4 50.0%
  • Hold 2 25.0%
  • Sell 0 0.0%
  • Strong Sell 0 0.0%

12-Month Price Target

2 analysts · 2026-08-13
Median target $16.50 -24.1%
Mean target $16.50 -24.1%

Earnings History EPS actual vs estimate, surprise %, beat rate, next earnings date

Avg Surprise
-0.20%
Next Report
Sep 01, 2026
Period EPS Actual EPS Est Surprise
June 30, 2026 $0.18 $-0.17 0.35%
March 31, 2026 $-0.21 $-0.31 0.10%
Dec. 31, 2025 $-0.36 $-0.46 0.10%
Sept. 30, 2025 $-0.54 $-0.29 -0.25%
June 30, 2025 $-1.58 $-0.15 -1.4%
Dec. 31, 2024 $-0.81 $-0.74 -0.07%

Peer comparison (GICS sub-industry) Key metrics vs sector peers

Ticker Market Cap P/E Rev YoY Net Margin ROE Gross Margin
QMCO $70M -0.6 2.0% -36.1% 56.2% 36.9%
DBD $2.40B 26.7 1.5% 2.5% 9.3% 25.3%
QUBT $2.30B -93.3 82.8% -2738.1% -1.9% 9.8%
CRSR $633M -49.5 11.9% -1.1% -2.6% 28.9%
KODK $824M -4.8 2.5% -12.0% -22.4% 21.7%
XRX
PMTS $168M 11.7 13.1% 2.8% -64.5% 31.3%
OSS $177M 32.6 31.2% 15.8% 14.1% 49.6%
MOVE -0.4 -57.3%
IMMR $203M 43.8 11.2% 0.26% 1.5%
AAPL $3.77T 34.2 6.4% 26.9% 159.4% 46.9%

Full Fundamentals All metrics by year — income statement, balance sheet, cash flow

Income Statement 17
Annual Income Statement data for QMCO
Metric Trend 2026202520242023202220212020
Revenue 5-point trend, -30.6% $280M $274M $312M · · $350M $403M
Cost of Revenue 5-point trend, -23.4% $177M $164M $187M · · $199M $230M
Gross Profit 5-point trend, -40.3% $103M $110M $125M · · $151M $173M
R&D Expense 5-point trend, -35.3% $24M $31M $38M · · $42M $36M
SG&A Expense 5-point trend, -19.4% $44M $64M $52M · · $42M $54M
Operating Expenses 5-point trend, -15.7% $128M $152M $154M · · $142M $151M
Operating Income 5-point trend, -215.6% $-25M $-42M $-29M · · $8M $21M
Interest Expense 2-point trend, +8.6% · · · · · $28M $25M
Other Non-op 5-point trend, -478.9% $-2M $-710.0K $-2M · · $-1M $-261.0K
Pretax Income 5-point trend, -2170.0% $-100M $-114M $-41M · · $-35M $-4M
Income Tax 5-point trend, +25.5% $1M $821.0K $711.0K · · $239.0K $803.0K
Net Income 5-point trend, -1839.5% $-101M $-115M $-41M · · $-35M $-5M
EPS (Basic) 5-point trend, -5592.9% $-7.97 $-22.35 $-8.68 · · $-0.83 $-0.14
EPS (Diluted) 5-point trend, -5592.9% $-7.97 $-22.35 $-8.68 · · $-0.83 $-0.14
Shares (Basic) 5-point trend, -66.3% 12,674,000 5,150,000 4,754,000 · · 42,852,000 37,593,000
Shares (Diluted) 5-point trend, -66.3% 12,674,000 5,150,000 4,754,000 · · 42,852,000 37,593,000
EBITDA 5-point trend, -190.7% $-19M $-36M $-20M · · $14M $21M
Balance Sheet 27
Annual Balance Sheet data for QMCO
Metric Trend 2026202520242023202220212020
Cash & Equivalents 7-point trend, +141.8% $16M $16M $26M $26M $26M $27M $6M
Receivables 7-point trend, -1.0% $70M $53M $68M $52M $73M $73M $70M
Inventory 2-point trend, -28.2% $16M $22M · · · · ·
Prepaid Expense 7-point trend, -71.4% $2M $3M $2M $4M $7M $4M $8M
Other Current Assets 7-point trend, -5.0% $8M $9M $8M $5M $7M $3M $8M
Current Assets 7-point trend, -17.2% $112M $103M $132M $134M $172M $156M $136M
PP&E (Net) 7-point trend, +2.6% $9M $11M $12M $15M $17M $10M $9M
PP&E (Gross) 5-point trend, +48.9% $63M $62M $63M · · $46M $42M
Accum. Depreciation 5-point trend, +61.4% $54M $51M $51M · · $36M $33M
Goodwill 7-point trend, +12969000.00 $13M $13M $13M $13M $13M $3M $0
Intangibles 7-point trend, +0.00 $0 $281.0K $2M $3M $6M $5M $0
Other Non-current Assets 7-point trend, +329.3% $15M $19M $20M $20M $14M $6M $3M
Total Assets 7-point trend, -5.5% $157M $155M $188M $195M $232M $195M $166M
Accounts Payable 7-point trend, -20.6% $29M $31M $26M $27M $42M $35M $37M
Accrued Liabilities 7-point trend, +11.0% $19M $18M $14M $12M $16M $19M $18M
Current Liabilities 7-point trend, +30.0% $206M $258M $250M $231M $157M $159M $158M
Capital Leases 7-point trend, -24.5% $8M $9M $10M $10M $10M $8M $11M
Other Non-current Liabilities 7-point trend, +14.0% $13M $14M $11M $13M $12M $13M $11M
Total Liabilities 7-point trend, -2.4% $356M $320M $309M $289M $310M $307M $365M
Long-term Debt 7-point trend, -38.7% $90M $0 $0 $83M $72M $91M $147M
Total Debt 5-point trend, -62.7% $55M $96M $82M · · $2M $147M
Common Stock 7-point trend, -63.4% $146.0K $70.0K $48.0K $956.0K $932.0K $570.0K $399.0K
Retained Earnings 7-point trend, -48.4% $-1.04B $-942M $-827M $-799M $-776M $-739M $-703M
AOCI 7-point trend, -521.6% $-9M $-2M $-2M $-2M $-3M $-856.0K $-2M
Stockholders' Equity 7-point trend, -0.2% $-199M $-164M $-121M $-94M $-78M $-200M $-199M
Liabilities + Equity 7-point trend, -5.5% $157M $155M $188M $195M $232M $195M $166M
Shares Outstanding 7-point trend, -63.3% 14,638,000 6,962,000 4,792,000 4,775,000 93,144,000 56,915,000 39,905,000
Cash Flow 16
Annual Cash Flow data for QMCO
Metric Trend 2026202520242023202220212020
D&A 5-point trend, +23.2% $5M $6M $9M · · $6M $4M
Stock-based Comp 5-point trend, -112.6% $-849.0K $3M $5M · · $10M $7M
Deferred Tax 5-point trend, +29.6% $-323.0K $44.0K $-222.0K · · $-771.0K $-459.0K
Amort. of Intangibles 5-point trend, +300000.00 $300.0K $1M $3M · · $100.0K $0
Restructuring 5-point trend, +693.7% $8M $4M $3M · · $4M $1M
Other Non-cash 4-point trend, +98.5% $59M $83M $17M · · $30M ·
Operating Cash Flow 5-point trend, -3105.4% $-38M $-24M $-10M · · $-767.0K $-1M
CapEx 5-point trend, -35.2% $2M $5M $6M · · $7M $3M
Investing Cash Flow 5-point trend, +62.9% $-2M $-5M $-6M · · $-10M $-5M
Stock Issued 5-point trend, +80000.00 $80.0K $0 $0 · · $1M $0
Net Stock Activity 4-point trend, +80000.00 $80.0K · $0 · · $1M $0
Financing Cash Flow 5-point trend, +3134.4% $39M $19M $16M · · $31M $1M
Net Change in Cash 5-point trend, +92.0% $-369.0K $-9M $-315.0K · · $21M $-5M
Taxes Paid 5-point trend, +343.7% $1M $2M $2M · · $-2M $-490.0K
Free Cash Flow 5-point trend, -937.3% $-40M $-29M $-16M · · $-8M $-4M
Levered FCF 2-point trend, -4.8% · · · · · $-35M $-34M
Profitability 8
Annual Profitability data for QMCO
Metric Trend 2026202520242023202220212020
Gross Margin 5-point trend, -13.9% 36.9% 40.1% 40.1% · · 43.1% 42.8%
Operating Margin 5-point trend, -266.7% -8.8% -15.2% -9.3% · · 2.4% 5.3%
Net Margin 5-point trend, -2701.6% -36.1% -42.0% -13.2% · · -10.1% -1.3%
Pretax Margin 5-point trend, -3182.6% -35.8% -41.7% -13.0% · · -10.1% -1.1%
EBITDA Margin 5-point trend, -230.8% -6.9% -13.2% -6.3% · · 4.0% 5.3%
ROA 5-point trend, -2007.8% -64.7% -71.2% -21.3% · · -19.7% -3.1%
ROE 5-point trend, +2030.3% 56.2% 63.8% 37.0% · · 23.2% 2.6%
ROIC 5-point trend, +135.4% 17.2% 61.8% 75.3% · · -7.7% -48.5%
Liquidity & Solvency 5
Annual Liquidity & Solvency data for QMCO
Metric Trend 2026202520242023202220212020
Current Ratio 5-point trend, -36.3% 0.5 0.4 0.5 · · 1.0 0.9
Quick Ratio 5-point trend, -14.7% 0.4 0.3 0.4 · · 0.6 0.5
Debt / Equity 5-point trend, +62.7% -0.3 -0.6 -0.7 · · -0.0 -0.7
LT Debt / Equity 2-point trend, +100.0% · · 0.0 · · · -0.7
Interest Coverage 2-point trend, -63.5% · · · · · 0.3 0.8
Efficiency 3
Annual Efficiency data for QMCO
Metric Trend 2026202520242023202220212020
Asset Turnover 5-point trend, -24.7% 1.8 1.7 1.6 · · 1.9 2.4
Inventory Turnover 9.2 · · · · · ·
Receivables Turnover 5-point trend, -10.7% 4.6 4.8 4.9 · · 4.9 5.1
Per Share 5
Annual Per Share data for QMCO
Metric Trend 2026202520242023202220212020
Book Value / Share 5-point trend, -271600.0% $-13.59 $-23.61 $-1.27 · · $-1.97 $-0.01
Revenue / Share 3-point trend, +573.2% $22.06 $53.22 $3.28 · · · ·
Cash Flow / Share 3-point trend, -2696.7% $-2.99 $-4.58 $-0.11 · · · ·
Cash / Share 5-point trend, +531800.0% $1.06 $2.36 $0.27 · · $0.48 $0.00
EPS (TTM) 5-point trend, -5592.9% $-7.97 $-22.35 $-8.68 · · $-0.83 $-0.14
Growth Rates 3
Annual Growth Rates data for QMCO
Metric Trend 2026202520242023202220212020
Revenue YoY 3-point trend, +107.7% 2.0% -12.0% -26.2% · · · ·
Revenue CAGR 3Y 3-point trend, -241.2% -12.8% -10.6% -3.8% · · · ·
Revenue CAGR 5Y -4.4% · · · · · ·
Valuation (TTM) 13
Annual Valuation (TTM) data for QMCO
Metric Trend 2026202520242023202220212020
Revenue TTM 5-point trend, -30.6% $280M $274M $312M · · $350M $403M
Net Income TTM 5-point trend, -1839.5% $-101M $-115M $-41M · · $-35M $-5M
Market Cap 5-point trend, -100.0% $70M $100M $1.15B · · $9.48B $2.35T
Enterprise Value 5-point trend, -100.0% $109M $180M $1.21B · · $9.46B $2.35T
P/E 5-point trend, +99.9% -0.6 -0.6 -1.4 · · -200.7 -421.4
P/S 5-point trend, -100.0% 0.2 0.4 3.7 · · 27.1 5842.9
P/B 5-point trend, +100.0% -0.3 -0.6 -9.5 · · -84.5 -11859.4
P / Cash Flow 5-point trend, +100.0% -1.8 -4.2 -113.3 · · -12362.5 -1993560.5
P / FCF 5-point trend, +100.0% -1.8 -3.5 -71.8 · · -1231.8 -617303.4
EV / EBITDA 5-point trend, -100.0% -5.7 -5.0 -61.7 · · 670.7 111042.0
EV / FCF 5-point trend, +100.0% -2.7 -6.3 -75.3 · · -1228.4 -617340.2
EV / Revenue 5-point trend, -100.0% 0.4 0.7 3.9 · · 27.1 5843.3
Earnings Yield 5-point trend, -69812.5% -167.8% -155.4% -72.3% · · -0.50% -0.24%

Financial Statements Income statement, balance sheet, cash flow — annual, last 5 years

Income Statement
2026-03-312025-03-312024-12-312024-03-312023-12-31
Revenue $280M$274M$312M
Gross Margin % 36.9%40.1%40.1%
Operating Margin % -8.8%-15.2%-9.3%
Net Income $-101M$-115M$-41M
Diluted EPS $-7.97$-22.35$-8.68
Balance Sheet
2026-03-312025-03-312024-12-312024-03-312023-12-31
Debt / Equity -0.3-0.6-0.7
Current Ratio 0.50.40.5
Quick Ratio 0.40.30.4
Cash Flow
2026-03-312025-03-312024-12-312024-03-312023-12-31
Free Cash Flow $-40M$-29M$-16M

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Institutional owners (13F) 71 filers · $138.7M total · As of June 30, 2026

Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.

Institutional activity — Q2 2026 vs prior quarter
New positions Exited positions Increased Decreased Net shares change
41 (+31 vs prior Q) 8 (-2 vs prior Q) 15 (+6 vs prior Q) 6 (-4 vs prior Q) +11.4M

Compared to Q1 2026. SEC Form 13F filings are due within 45 days of quarter-end plus a short buffer for late filers — quarters still inside that window are skipped in favor of the most recent fully-reported pair.

Institution Value Shares % of tracked 13F Type
Alyeska Investment Group, L.P. $29,193,208 2,653,928 21.04% Shares
Two Seas Capital LP $27,373,885 2,488,535 19.73% Shares
OAKTREE CAPITAL MANAGEMENT LP $22,128,458 2,011,678 15.95% Shares
NEUBERGER BERMAN GROUP LLC $12,796,465 1,163,315 9.22% Shares
Portolan Capital Management, LLC $11,221,320 1,020,120 8.09% Shares
VANGUARD CAPITAL MANAGEMENT LLC $6,660,951 605,541 4.80% Shares
Manatuck Hill Partners, LLC $3,850,000 350,000 2.78% Shares
Cinctive Capital Management LP $2,010,459 182,769 1.45% Shares
JANE STREET GROUP, LLC $1,876,600 170,600 1.35% Call option
MARSHALL WACE, LLP $1,708,443 155,313 1.23% Shares
RENAISSANCE TECHNOLOGIES LLC $1,699,676 154,516 1.23% Shares
BANK OF AMERICA CORP /DE/ $1,646,216 149,656 1.19% Shares
GEODE CAPITAL MANAGEMENT, LLC $1,485,418 134,954 1.07% Shares
Walleye Capital LLC $1,320,484 120,044 0.95% Shares
CITADEL ADVISORS LLC $1,278,200 116,200 0.92% Call option
SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,144,000 104,000 0.82% Call option
Centiva Capital, LP $1,100,000 100,000 0.79% Shares
VANGUARD FIDUCIARY TRUST CO $980,375 89,125 0.71% Shares
KKM Financial LLC $960,515 90,274 0.69% Shares
Qube Research & Technologies Ltd $890,747 80,977 0.64% Shares
STATE STREET CORP $835,054 75,914 0.60% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $767,525 69,775 0.55% Shares
Man Group plc $754,523 68,593 0.54% Shares
Informed Momentum Co LLC $713,427 64,857 0.51% Shares
JANE STREET GROUP, LLC $416,900 37,900 0.30% Put option
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC $380,611 34,601 0.27% Shares
Squarepoint Ops LLC $371,987 33,817 0.27% Shares
NORTHERN TRUST CORP $365,420 33,220 0.26% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $289,300 26,300 0.21% Put option
MILLENNIUM MANAGEMENT LLC $239,305 21,755 0.17% Shares
CITADEL ADVISORS LLC $226,600 20,600 0.16% Put option
GOLDMAN SACHS GROUP INC $210,683 19,153 0.15% Shares
AlphaQuest LLC $189,540 29,386 0.14% Shares
BRIDGEWAY CAPITAL MANAGEMENT, LLC $178,640 16,240 0.13% Shares
MORGAN STANLEY $166,463 15,133 0.12% Shares
CITIGROUP INC $158,686 14,426 0.11% Shares
Kovack Advisors, Inc. $146,790 13,430 0.11% Shares
Schonfeld Strategic Advisors LLC $132,605 12,055 0.10% Shares
WELLS FARGO & COMPANY/MN $124,300 11,300 0.09% Shares
FLAGSHIP HARBOR ADVISORS, LLC $121,044 11,004 0.09% Shares
Invesco Ltd. $119,229 10,839 0.09% Shares
TUDOR INVESTMENT CORP ET AL $114,400 10,400 0.08% Call option
BlackRock, Inc. $105,215 9,565 0.08% Shares
Vanguard Global Advisers, LLC $66,000 6,000 0.05% Shares
SONA ASSET MANAGEMENT (US) LLC $41,250 3,750 0.03% Shares
VANGUARD GROUP INC $38,700 6,000 0.03% Shares
SONA ASSET MANAGEMENT (US) LLC $23,100 2,100 0.02% Call option
JONES FINANCIAL COMPANIES LLLP $18,407 1,580 0.01% Shares
BNP PARIBAS FINANCIAL MARKETS $13,057 1,187 0.01% Shares
FEDERATED HERMES, INC. $12,738 1,158 0.01% Shares
SBI Securities Co., Ltd. $11,770 1,070 0.01% Shares
RAYMOND JAMES FINANCIAL INC $11,110 1,010 0.01% Shares
ROYAL BANK OF CANADA $8,000 765 0.01% Shares
Tower Research Capital LLC (TRC) $7,205 655 0.01% Shares
BARCLAYS PLC $5,005 455 0.00% Shares
SEI INVESTMENTS CO $3,530 319 0.00% Shares
MERCER GLOBAL ADVISORS INC /ADV $2,750 250 0.00% Shares
HARBOUR INVESTMENTS, INC. $2,013 183 0.00% Shares
UBS Group AG $1,375 125 0.00% Shares
FMR LLC $1,166 106 0.00% Shares
EFG International AG $1,099 100 0.00% Shares
Global Retirement Partners, LLC $715 65 0.00% Shares
Cygnus Capital Advisors, LLC $590 124,086 0.00% Shares
Continuum Advisory, LLC $374 34 0.00% Shares
PROEQUITIES, INC. $286 8 0.00% Shares
PRICE T ROWE ASSOCIATES INC /MD/ $276 25,069 0.00% Shares
Quarry LP $187 17 0.00% Shares
OSAIC HOLDINGS, INC. $110 10 0.00% Shares
HOLLENCREST CAPITAL MANAGEMENT $110 10 0.00% Shares
JPMORGAN CHASE & CO $95 8 0.00% Shares
Farther Finance Advisors, LLC $44 4 0.00% Shares

Company insiders 77 insiders · 35 officers · 37 directors

Insider Role Last activity Shares owned Buys 12m Sells 12m Net 12m
Hugues Meyrath President & CEO July 2, 2026 S 118,468 0 1 $-65,498
James J Lerner President & CEO April 21, 2025 S 110,848 0 0 $0
Patrick Dennis President and CEO Feb. 1, 2018 A 125,000 0 0 $0
Jon W Gacek President and CEO Oct. 2, 2017 S 407,207 0 0 $0
Kenneth P. Gianella Chief Financial Officer Feb. 3, 2025 S 32,402 0 0 $0
Michael J Dodson Senior Vice President, CFO Oct. 5, 2022 S 870,372 0 0 $0
Fuad Ahmad SVP, Chief Financial Officer April 1, 2018 F 170,998 0 0 $0
Christopher Shawn Willis Interim CFO Feb. 5, 2016 J 299,777 0 0 $0
Linda Marie Breard Chief Financial Officer July 1, 2015 F 916,761 0 0 $0
Edward J Hayes Jr CFO & Executive VP Aug. 22, 2006 A 108,500 0 0 $0
Howard L Matthews President & COO Aug. 22, 2006 A 0 0 $0
John B Gannon President & COO March 22, 2005 A 60,243 0 0 $0
Laura A. Nash Chief Accounting Officer July 2, 2026 S 10,770 0 1 $-2,733
Lewis W. Moorehead Chief Accounting Officer April 21, 2025 S 24,971 0 0 $0
Brian E Cabrera SVP Chief Admin Ofcr & Secy April 21, 2025 S 28,736 0 0 $0
Henk Jan Spanjaard Chief Revenue Officer Jan. 16, 2025 S 14,903 0 0 $0
John Hurley Chief Revenue Officer Sept. 5, 2023 S 341,519 0 0 $0
Elizabeth King Chief Revenue Officer July 7, 2021 S 285,114 0 0 $0
Regan J Macpherson Chief Legal&Compliance Officer March 11, 2021 M 81,089 0 0 $0
Donald E. Martella Jr. SVP, Engineering Aug. 24, 2020 S 81,407 0 0 $0
Shawn D Hall Senior VP, GC & Secretary March 8, 2019 F 119,999 0 0 $0
Geoff G. Stedman SVP, Mktg. & Storage Solutions Feb. 5, 2018 J 100,461 0 0 $0
William C Britts SVP, Worldwide Sales & Mktg. Feb. 5, 2018 J 206,646 0 0 $0
Robert S. Clark SVP, Product Operations July 10, 2017 S 74,703 0 0 $0
Janae S. Lee SVP, Strategy July 1, 2015 F 525,520 0 0 $0
Theodore A. Stinson SVP, Worldwide Sales July 1, 2013 F 714,743 0 0 $0
Gerald Lopatin Executive VP, Engineering July 1, 2010 F 129,567 0 0 $0
Barbara Barrett Senior VP, Human Resources July 1, 2010 M 199,422 0 0 $0
Stephen P Dalton SVP, TSS, Engineering Oct. 31, 2007 S 23,739 0 0 $0
Andy Panayides, VP Corp Development & Strategy Feb. 5, 2007 J 59,418 0 0 $0
Jim Wold Sr. VP & GM, Storage Devices Aug. 22, 2006 A 48,727 0 0 $0
Jesse Parker Senior VP, Manufacturing & Ops Aug. 22, 2006 A 98,124 0 0 $0
Philip Ritti VP, General Manager, Media Aug. 22, 2006 A 49,573 0 0 $0
Anthony Carrozza Senior VP, Worldwide Sales Aug. 22, 2006 A 53,494 0 0 $0
Lewis Frauenfelder GM Storage Devices Jan. 25, 2005 J 88,934 0 0 $0
JOHN FICHTHORN Director June 1, 2026 J 14,104,620 0 0 $0
John R. Tracy Director Nov. 1, 2024 A 15,000 0 0 $0
Don Jaworksi Director Oct. 1, 2024 A 97,498 0 0 $0
Yue Zhou White Director Oct. 1, 2024 A 126,766 0 0 $0
Rebecca Jacoby Director Sept. 1, 2022 A 158,624 0 0 $0
Marc E Rothman Director Sept. 1, 2022 A 297,625 0 0 $0
Raghavendra Rau Director April 22, 2022 X 257,874 0 0 $0
Singer Eric Director Sept. 5, 2019 A 87,514 0 0 $0
Clifford Press Director Sept. 5, 2019 A 118,940 0 0 $0
Adalio T Sanchez Director March 8, 2019 F 84,072 0 0 $0
Auvil Paul R. III Director Sept. 1, 2017 A 101,735 0 0 $0
Alex Pinchev Director Sept. 1, 2017 A 20,344 0 0 $0
Gregg J Powers Director April 1, 2017 A 345,392 0 0 $0
David Earle Roberson Director April 1, 2017 A 431,784 0 0 $0
John Mutch Director April 1, 2017 A 50,000 0 0 $0

Insiders from SEC Form 3/4/5 filings; net = open-market P/S only

Activists & 5%+ owners 11 positions

Investors who filed SEC Schedule 13D — beneficial ownership above 5% with an intent to influence the issuer (activist stakes, board campaigns, M&A). Each row shows the most recent known state of that filer's position.

Filer Filed Stake Status Purpose Filing
Dialectic Technology SPV LLC, Dialectic Technology Manager LLC, JOHN FICHTHORN ×4 filings June 8, 2026 40.00% Amendment SEC
Pacific Investment Management Company LLC ×10 filings April 17, 2025 0.00% Amendment SEC
Blue Torch Capital LP, Kevin Genda ×2 filings Feb. 21, 2025 2.30% Amendment SEC
Aug. 24, 2022 Initial filing SEC
B. Riley Financial, Inc., B. Riley Securities, Inc., BRF Investments, LLC, Bryant R. Riley ×8 filings Aug. 8, 2022 Initial filing SEC
VIEX Opportunities Fund, LP – Series One*, VIEX Opportunities Fund, LP – Series Two*, VIEX Special Opportunities Fund III, LP, VIEX GP, LLC, VIEX Special Opportunities GP III, LLC, VIEX Capital Advisors, LLC, Eric Singer ×9 filings March 11, 2020 Initial filing SEC
VIEX Opportunities Fund, LP - Series One*, VIEX Opportunities Fund, LP -Series Two*, VIEX Special Opportunities Fund III, LP, VIEX GP, LLC, VIEX Special Opportunities GP III, LLC, VIEX Capital Advisors, LLC, Eric Singer ×5 filings Nov. 5, 2019 Initial filing SEC
STARBOARD VALUE LP, STARBOARD VALUE AND OPPORTUNITY MASTER FUND LTD, STARBOARD VALUE AND OPPORTUNITY S LLC, STARBOARD VALUE AND OPPORTUNITY C LP, STARBOARD VALUE R LP, STARBOARD VALUE R GP LLC, STARBOARD VALUE GP LLC, STARBOARD PRINCIPAL CO LP, STARBOARD PRINCIPAL CO GP LLC, JEFFREY C. SMITH, MARK R. MITCHELL, PETER A. FELD ×7 filings Nov. 15, 2017 Initial filing SEC
Mr. Gregg J. Powers ×3 filings Nov. 9, 2017 Initial filing Passive investment SEC
STARBOARD VALUE AND OPPORTUNITY MASTER FUND LTD, STARBOARD VALUE AND OPPORTUNITY S LLC, STARBOARD VALUE AND OPPORTUNITY C LP, STARBOARD VALUE R LP, STARBOARD VALUE R GP LLC, STARBOARD VALUE LP, STARBOARD VALUE GP LLC, STARBOARD PRINCIPAL CO LP, STARBOARD PRINCIPAL CO GP LLC, JEFFREY C. SMITH, MARK R. MITCHELL, PETER A. FELD ×3 filings May 15, 2013 Initial filing Board campaign SEC
Quantum Corporation May 12, 2006 Initial filing SEC

Purpose is an automated classification of the filer's own stated purpose (SEC Item 4) — not investment advice. "—" means no clear purpose was stated or the text could not be classified.

ETF ownership Held by 4 ETFs

Weight reflects direct equity holdings (N-PORT) only; leveraged or derivative-based funds may hold additional swap exposure not shown.

Fund Weight Units As of Source
VXF · VANGUARD INDEX FUNDS July 15, 2026 Daily
VTI · VANGUARD INDEX FUNDS July 15, 2026 Daily
IWC · iShares Trust Aug. 18, 2026 Daily
QQQS · Invesco Exchange-Traded Fund Trust … Aug. 5, 2026 Daily