Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in MGEE held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 6.1M | $496.9M | +11.6% | 16.144% | 0.01% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.8M | $227.8M | +4.9% | 7.401% | 0.01% |
| 3 | STATE STREET CORP | 2.0M | $167.1M | +6.8% | 5.431% | 0.00% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 1.7M | $138.8M | +3.8% | 4.511% | 0.00% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 1.0M | $82.0M | +8.6% | 2.663% | 0.00% |
| 6 | Zimmer Partners, LP | 1.0M | $81.5M | — | 2.649% | 1.88% |
| 7 | DIMENSIONAL FUND ADVISORS LP | 701K | $57.2M | +2.4% | 1.857% | 0.01% |
| 8 | MORGAN STANLEY | 545K | $44.5M | +78.0% | 1.445% | 0.00% |
| 9 | WESTWOOD HOLDINGS GROUP INC | 531K | $43.3M | — | 1.406% | 0.33% |
| 10 | GABELLI FUNDS LLC | 514K | $41.9M | +89.4% | 1.361% | 0.27% |
| 11 | TWO SIGMA INVESTMENTS, LP | 487K | $39.7M | +188.0% | 1.290% | 0.03% |
| 12 | FIRST TRUST ADVISORS LP | 447K | $36.5M | +0.1% | 1.185% | 0.02% |
| 13 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 435K | $35.4M | +3.9% | 1.151% | 0.00% |
| 14 | NORTHERN TRUST CORP | 395K | $32.2M | +9.3% | 1.045% | 0.00% |
| 15 | DEPRINCE RACE & ZOLLO INC | 351K | $28.6M | +26.6% | 0.930% | 0.48% |
| 16 | Nuveen, LLC | 338K | $27.5M | +82.1% | 0.895% | 0.01% |
| 17 | Bank of New York Mellon Corp | 332K | $27.1M | +3.7% | 0.880% | 0.00% |
| 18 | Qube Research & Technologies Ltd | 330K | $26.9M | -0.1% | 0.873% | 0.02% |
| 19 | AQR CAPITAL MANAGEMENT LLC | 300K | $24.5M | +777.6% | 0.796% | 0.01% |
| 20 | VANGUARD FIDUCIARY TRUST CO | 250K | $20.4M | +1.5% | 0.662% | 0.00% |
| 21 | SPEECE THORSON CAPITAL GROUP INC | 229K | $18.6M | — | 0.606% | 3.99% |
| 22 | CITADEL ADVISORS LLC | 200K | $16.3M | +295.4% | 0.530% | 0.00% |
| 23 | Yaupon Capital Management LP | 200K | $16.3M | — | 0.530% | 0.32% |
| 24 | Legal & General Group Plc | 189K | $15.4M | +3.8% | 0.502% | 0.00% |
| 25 | GOLDMAN SACHS GROUP INC | 184K | $15.0M | -18.7% | 0.488% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in MGEE — a direct measure of their conviction.
Filings activity in MGEE during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 336 | +6.3% | 70.24% | +12.52 pp | $2.15B | +30% |
| Q1 2026 | 316 | +2.9% | 57.72% | +0.04 pp | $1.65B | 2.1% |
| Q4 2025 | 307 | +3.7% | 57.68% | 0.17 pp | $1.68B | 6.7% |
| Q3 2025 | 296 | +1.7% | 57.85% | 1.37 pp | $1.80B | 4.6% |
| Q2 2025 | 291 | +0.3% | 59.22% | 1.49 pp | $1.89B | 3.1% |
| Q1 2025 | 290 | +1.8% | 60.71% | +0.45 pp | $1.95B | 2.7% |
| Q4 2024 | 285 | +8.8% | 60.26% | +1.64 pp | $2.00B | +6.1% |
| Q3 2024 | 262 | — | 58.62% | — | $1.89B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying MGEE stock.
Based on Q2 2026 13F filings, institutional ownership of MGE Energy, Inc. stands at 70.2%, held across 336 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of MGEE, with approximately 6,093,900 shares worth $0.50B as of Q2 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of MGEE, including TWO SIGMA INVESTMENTS, LP, CITADEL ADVISORS LLC.
Our composite Smart Money Score for MGEE is 69 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
54 institutions opened new positions in MGEE during Q2 2026, while 32 fully exited. 221 added to existing positions and 52 trimmed.
MGEE institutional ownership rose by 12.52 percentage points quarter-over-quarter, with a net change of +20 holders.
The top 10 institutions account for 64.4% of all reported 13F value in MGEE, and the top 25 account for 82.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
MGE Energy, Inc. (MGEE) Institutional Ownership