SEI Investments’s Magnolia Oil & Gas MGY Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $7M | Sell |
273,602
-181,750
| -40% | -$5.19M | 0.01% | 1310 |
|
|
2026
Q1 | $14.4M | Buy |
455,352
+219,603
| +93% | +$5.88M | 0.01% | 943 |
|
|
2025
Q4 | $5.16M | Buy |
235,749
+44,999
| +24% | +$1.02M | 0.01% | 1358 |
|
|
2025
Q3 | $4.55M | Buy |
190,750
+11,838
| +7% | +$282K | ﹤0.01% | 1348 |
|
|
2025
Q2 | $4.02M | Sell |
178,912
-616,561
| -78% | -$13.7M | ﹤0.01% | 1360 |
|
|
2025
Q1 | $20.1M | Sell |
795,473
-5,033
| -0.6% | -$122K | 0.03% | 673 |
|
|
2024
Q4 | $18.7M | Sell |
800,506
-56,654
| -7% | -$1.47M | 0.02% | 712 |
|
|
2024
Q3 | $20.9M | Buy |
857,160
+44,378
| +5% | +$1.12M | 0.03% | 641 |
|
|
2024
Q2 | $20.6M | Buy |
812,782
+77,934
| +11% | +$1.99M | 0.03% | 583 |
|
|
2024
Q1 | $19.1M | Sell |
734,848
-120,778
| -14% | -$2.65M | 0.03% | 618 |
|
|
2023
Q4 | $18.2M | Buy |
855,626
+37,229
| +5% | +$815K | 0.03% | 607 |
|
|
2023
Q3 | $18.7M | Buy |
818,397
+47,564
| +6% | +$1.06M | 0.03% | 562 |
|
|
2023
Q2 | $16.1M | Buy |
770,833
+117,388
| +18% | +$2.43M | 0.03% | 647 |
|
|
2023
Q1 | $14.3M | Buy |
653,445
+148,045
| +29% | +$3.29M | 0.03% | 677 |
|
|
2022
Q4 | $11.9M | Buy |
505,400
+33,318
| +7% | +$812K | 0.03% | 660 |
|
|
2022
Q3 | $9.35M | Sell |
472,082
-29,669
| -6% | -$657K | 0.02% | 796 |
|
|
2022
Q2 | $10.5M | Buy |
501,751
+107,429
| +27% | +$2.69M | 0.02% | 756 |
|
|
2022
Q1 | $9.33M | Buy |
394,322
+11,759
| +3% | +$258K | 0.02% | 802 |
|
|
2021
Q4 | $7.22M | Buy |
382,563
+163,098
| +74% | +$3.24M | 0.01% | 948 |
|
|
2021
Q3 | $3.9M | Sell |
219,465
-102,581
| -32% | -$1.55M | 0.01% | 1215 |
|
|
2021
Q2 | $5.03M | Buy |
322,046
+114,303
| +55% | +$1.47M | 0.01% | 1070 |
|
|
2021
Q1 | $2.38M | Sell |
207,743
-1,266
| -0.6% | -$13.2K | 0.01% | 1375 |
|
|
2020
Q4 | $1.48M | Sell |
209,009
-189,576
| -48% | -$1.13M | ﹤0.01% | 1524 |
|
|
2020
Q3 | $2.06M | Buy |
398,585
+135,812
| +52% | +$846K | 0.01% | 1278 |
|
|
2020
Q2 | $1.59M | Sell |
262,773
-17,476
| -6% | -$95.4K | ﹤0.01% | 1361 |
|
|
2020
Q1 | $1.12M | Sell |
280,249
-13,098
| -4% | -$113K | ﹤0.01% | 1417 |
|
|
2019
Q4 | $3.69M | Buy |
293,347
+32,110
| +12% | +$360K | 0.01% | 1068 |
|
|
2019
Q3 | $2.9M | Buy |
261,237
+50,136
| +24% | +$538K | 0.01% | 1171 |
|
|
2019
Q2 | $2.44M | Buy |
211,101
+68,880
| +48% | +$845K | 0.01% | 1245 |
|
|
2019
Q1 | $1.71M | Buy |
+142,221
| New | +$1.73M | 0.01% | 1371 |
|
Other funds holding MGY
JT
SEI Investments's MGY Position: Q2 2026 in Review
SEI Investments reduced its Magnolia Oil & Gas (MGY) stake by 40% in Q2 2026, selling an estimated $5.19M and leaving 273,602 shares worth $7M. The position accounts for 0.01% of the portfolio, ranked #1310.
SEI Investments first reported a position in MGY in Q1 2019 and has held it in 30 quarters since. The position peaked at $20.9M in Q3 2024. 411 funds tracked by Wall St. Rank hold MGY as of Q2 2026.
- SEI Investments held 273,602 shares of Magnolia Oil & Gas worth $7M as of Q2 2026.
- SEI Investments sold 181,750 Magnolia Oil & Gas shares in Q2 2026, an estimated $5.19M.
- Magnolia Oil & Gas made up 0.01% of SEI Investments's portfolio in Q2 2026, its #1310 holding.
- SEI Investments first reported a position in Magnolia Oil & Gas in Q1 2019 and has held it in 30 quarters since.
- SEI Investments's Magnolia Oil & Gas position peaked at $20.9M in Q3 2024.
- 411 funds tracked by Wall St. Rank held Magnolia Oil & Gas as of Q2 2026.
Based on SEI Investments's 13F filing for Q2 2026, filed 14 Aug 2026.