GROUP ONE TRADING, L.P. - QUANTUM CORP ownership

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QUANTUM CORP's ticker is and the CUSIP is 747906951. A total of 2 filers reported holding QUANTUM CORP in Q4 2018. The put-call ratio across all filers is - and the average weighting 0.0%.

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Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of QUANTUM CORP
ValueSharesWeighting
Q2 2021$41,000
+241.7%
5,900
+13.5%
0.00%–
Q3 2018$12,000
-78.2%
5,200
-79.3%
0.00%–
Q2 2018$55,000
+120.0%
25,100
+263.8%
0.00%–
Q1 2018$25,000–6,900–0.00%–
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Other shareholders
QUANTUM CORP shareholders Q4 2018
NameSharesValueWeighting ↓
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of QUANTUM CORP shareholders