Mariner
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Mariner’s MGE Energy Inc MGEE Stock Holding History

Mariner’s Portfolio MGEE Stock Details MGEE Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.74M Buy
21,358
+17,929
+523% +$1.39M ﹤0.01% 1574
2026
Q1 		$265K Buy
3,429
+736
+27% +$58K ﹤0.01% 2980
2025
Q4 		$211K Buy
+2,693
New +$221K ﹤0.01% 3124
2023
Q3 		– Sell
-2,712
Closed -$215K – 2974
2023
Q2 		$215K Buy
2,712
+135
+5% +$10.4K ﹤0.01% 2407
2023
Q1 		$200K Buy
+2,577
New +$187K ﹤0.01% 2419

Other funds holding MGEE

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
ZP
Zimmer Partners New York $4.34B AUM 22.78% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
WHG
Westwood Holdings Group Dallas, Texas $13.3B AUM 29.38% 1-Year Est. Return
GF
Gabelli Funds Rye, New York $15.7B AUM 36.4% 1-Year Est. Return

Mariner's MGEE Position: Q2 2026 in Review

Mariner increased its MGE Energy Inc (MGEE) stake by 523% in Q2 2026, buying an estimated $1.39M and bringing the position to 21,358 shares worth $1.74M. The position accounts for ﹤0.01% of the portfolio, ranked #1574.

Mariner first reported a position in MGEE in Q1 2023 and has held it in 5 quarters since. 338 funds tracked by Wall St. Rank hold MGEE as of Q2 2026.

  • Mariner held 21,358 shares of MGE Energy Inc worth $1.74M as of Q2 2026.
  • Mariner bought 17,929 MGE Energy Inc shares in Q2 2026, an estimated $1.39M.
  • MGE Energy Inc made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #1574 holding.
  • Mariner first reported a position in MGE Energy Inc in Q1 2023 and has held it in 5 quarters since.
  • 338 funds tracked by Wall St. Rank held MGE Energy Inc as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.