Biggest movers / QMCO

QMCO alerts & big moves

QUANTUM CORPORATION · Nasdaq · Technology

Last price$34.90

Change+1.16%vs previous close

Alerts16last 90 days

Last alertSeptember 25, 202610:23 AM ET

52-week rangeas recorded on September 25, 2026

Low $4.19High $32.08

Alert history — last 90 days

All 16 alerts in the window. Times are ET; the public list runs 15 minutes behind the live feed.

Momentum+8.5%in 14 minSeptember 25, 2026, 10:23 AM ET
$32.24Vol 1.0M0.7× avg volumeTechnology
General+10.5%in 17 minSeptember 24, 2026, 9:41 AM ET
$27.90Vol 281.0K0.2× avg volumeTechnology
Momentum+12.7%in 17 minSeptember 11, 2026, 4:26 AM ET
$25.87Vol 8.9K<0.1× avg volumeTechnology
General+13.0%in 9 minAugust 31, 2026, 4:48 PM ET
$24.40Vol 1.2M0.5× avg volumeTechnology
Momentum+12.9%in 8 minAugust 31, 2026, 4:09 PM ET
$24.38Vol 1.0M0.4× avg volumeTechnology
General+11.0%in 12 minAugust 18, 2026, 9:42 AM ET
$26.08Vol 290.9K0.1× avg volumeTechnology
General+10.0%in 17 minAugust 14, 2026, 9:47 AM ET
$26.84Vol 683.5K0.3× avg volumeTechnology
General+10.1%in 16 minAugust 12, 2026, 9:44 AM ET
$21.30Vol 972.2K0.6× avg volumeTechnology
Momentum+9.0%in 5 minAugust 12, 2026, 9:33 AM ET
$21.09Vol 522.7K0.3× avg volumeTechnology
General+15.2%in 17 minAugust 11, 2026, 10:04 AM ET
$18.14Vol 4.5M4.8× avg volumeTechnology
General+12.3%in 15 minAugust 11, 2026, 9:49 AM ET
$16.30Vol 2.2M2.3× avg volumeTechnology
General+13.1%in 12 minAugust 11, 2026, 9:34 AM ET
$15.88Vol 698.7K0.7× avg volumeTechnology
Momentum+12.4%in 10 minAugust 11, 2026, 9:32 AM ET
$15.78Vol 444.6K0.5× avg volumeTechnology
General+19.4%in 10 minAugust 10, 2026, 4:12 PM ET
$14.00Vol 1.1M1.3× avg volumeTechnology
Momentum+19.3%in 8 minAugust 10, 2026, 4:10 PM ET
$13.99Vol 1.1M1.2× avg volumeTechnology
General+11.0%in 4 minJuly 29, 2026, 9:37 AM ET
$12.53Vol 117.8K0.1× avg volumeTechnology

Recent SEC filings

Straight from EDGAR — the company’s own filings, in plain English. Every line links to the original document.

Leadership8-KSeptember 28, 2026
A director or senior executive joined or left the company.
Read the filing on sec.gov →
Company update8-KSeptember 17, 2026
The company told regulators something it considered important had happened.
Read the filing on sec.gov →
Leadership8-KSeptember 1, 2026
A director or senior executive joined or left the company.
Read the filing on sec.gov →
Leadership8-KAugust 14, 2026
A director or senior executive joined or left the company.
Read the filing on sec.gov →
Quarterly report10-QAugust 11, 2026
The company filed its quarterly financial report. This is scheduled, not news in itself.
Read the filing on sec.gov →
Earnings8-KAugust 10, 2026
The company reported its financial results.
Read the filing on sec.gov →

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