SEI Investments’s Quantum Corp QMCO Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $426K | Buy |
+38,739
| New | +$372K | ﹤0.01% | 2708 |
|
|
2024
Q3 | – | Sell |
-3,444
| Closed | -$28.2K | – | 2746 |
|
|
2024
Q2 | $28.2K | Buy |
3,444
+502
| +17% | +$4.84K | ﹤0.01% | 2621 |
|
|
2024
Q1 | $35K | Buy |
2,942
+605
| +26% | +$5.43K | ﹤0.01% | 2580 |
|
|
2023
Q4 | $16.4K | Sell |
2,337
-101
| -4% | -$852 | ﹤0.01% | 2593 |
|
|
2023
Q3 | $29.7K | Sell |
2,438
-81
| -3% | -$1.34K | ﹤0.01% | 2585 |
|
|
2023
Q2 | $54.4K | Buy |
2,519
+309
| +14% | +$6.39K | ﹤0.01% | 2614 |
|
|
2023
Q1 | $50.9K | Buy |
2,210
+343
| +18% | +$8.96K | ﹤0.01% | 2624 |
|
|
2022
Q4 | $40.6K | Sell |
1,867
-441
| -19% | -$10.8K | ﹤0.01% | 2495 |
|
|
2022
Q3 | $50K | Buy |
2,308
+193
| +9% | +$6.2K | ﹤0.01% | 2623 |
|
|
2022
Q2 | $31K | Buy |
2,115
+391
| +23% | +$14.8K | ﹤0.01% | 2623 |
|
|
2022
Q1 | $57K | Buy |
1,724
+410
| +31% | +$30K | ﹤0.01% | 2548 |
|
|
2021
Q4 | $137K | Buy |
1,314
+38
| +3% | +$4.33K | ﹤0.01% | 2511 |
|
|
2021
Q3 | $127K | Buy |
1,276
+14
| +1% | +$1.65K | ﹤0.01% | 2493 |
|
|
2021
Q2 | $188K | Buy |
+1,262
| New | +$204K | ﹤0.01% | 2458 |
|
|
2019
Q2 | – | Sell |
-145
| Closed | -$2K | – | 2683 |
|
|
2019
Q1 | $2K | Buy |
+145
| New | +$4.89K | ﹤0.01% | 2864 |
|
|
2018
Q4 | – | Sell |
-132
| Closed | -$2K | – | 2662 |
|
|
2018
Q3 | $2K | Sell |
132
-4
| -3% | -$163 | ﹤0.01% | 2487 |
|
|
2018
Q2 | $6K | Sell |
136
-11
| -7% | -$738 | ﹤0.01% | 3121 |
|
|
2018
Q1 | $11K | Sell |
147
-2
| -1% | -$195 | ﹤0.01% | 2846 |
|
|
2017
Q4 | $17K | Sell |
149
-17
| -10% | -$1.83K | ﹤0.01% | 2656 |
|
|
2017
Q3 | $20K | Buy |
+166
| New | +$22.3K | ﹤0.01% | 2503 |
|
|
2017
Q2 | – | Sell |
-144
| Closed | -$20K | – | 3244 |
|
|
2017
Q1 | $20K | Buy |
144
+8
| +6% | +$1.15K | ﹤0.01% | 2335 |
|
|
2016
Q4 | $18K | Buy |
136
+3
| +2% | +$393 | ﹤0.01% | 2361 |
|
|
2016
Q3 | $16K | Buy |
133
+3
| +2% | +$293 | ﹤0.01% | 2316 |
|
|
2016
Q2 | $9K | Buy |
130
+27
| +26% | +$1.96K | ﹤0.01% | 2288 |
|
|
2016
Q1 | $10K | Buy |
103
+35
| +51% | +$3.37K | ﹤0.01% | 2189 |
|
|
2015
Q4 | $10K | Buy |
+68
| New | +$9.33K | ﹤0.01% | 2223 |
|
|
2015
Q3 | – | Sell |
-10
| Closed | -$1.85K | – | 2559 |
|
|
2015
Q2 | $3K | Sell |
10
-1
| -9% | -$306 | ﹤0.01% | 2062 |
|
|
2015
Q1 | $3K | Buy |
11
+10
| +1,000% | +$2.64K | ﹤0.01% | 2093 |
|
|
2014
Q4 | $0 | Buy |
+1
| New | +$230 | ﹤0.01% | 2246 |
|
Other funds holding QMCO
TSC
OCM
PCM
ACM
MHP
SEI Investments's QMCO Position: Q2 2026 in Review
SEI Investments opened a new position in Quantum Corp (QMCO) in Q2 2026: 38,739 shares worth $426K. The stake represents ﹤0.01% of the portfolio and ranks #2708 among its holdings. This is a return to the name: SEI Investments previously reported a position in QMCO as recently as Q2 2024.
SEI Investments first reported a position in QMCO in Q4 2014 and has held it in 29 quarters since. 60 funds tracked by Wall St. Rank hold QMCO as of Q2 2026.
- SEI Investments held 38,739 shares of Quantum Corp worth $426K as of Q2 2026.
- Quantum Corp was a new SEI Investments position in Q2 2026.
- Quantum Corp made up ﹤0.01% of SEI Investments's portfolio in Q2 2026, its #2708 holding.
- SEI Investments first reported a position in Quantum Corp in Q4 2014 and has held it in 29 quarters since.
- 60 funds tracked by Wall St. Rank held Quantum Corp as of Q2 2026.
Based on SEI Investments's 13F filing for Q2 2026, filed 14 Aug 2026.