SOUTHEASTERN ASSET MANAGEMENT INC/TN/: MGM RESORTS INTERNATIONAL (MGM): Quarterly 13F Position History
As of Q1 2026, SOUTHEASTERN ASSET MANAGEMENT INC/TN/ reported 1,662,961 shares of MGM RESORTS INTERNATIONAL (MGM), worth $61.5M and representing 3.0% of its 13F equity book. Quarter-over-quarter share count change: 370,408 (-18.2%) . The position first appeared in Q3 2020 and has been disclosed across 23 13F-HR filings in Pactolio's tracked window.
- 1,662,961Shares Held (Latest Filing)
- $61.5MReported Market Value (Latest Filing)
- 3.0%Portfolio Weight (% of 13F Equity Book)
- 370,408Quarter-over-Quarter Share Change
- -$12.7MQuarter-over-Quarter Value Change
- 7,053,064Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 23 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 1,662,961 | 370,408 | -18.2% | $61.5M | 3.0% | $37.0 |
| Q4 2025 | 2,033,369 | +285,367 | +16.3% | $74.2M | 3.3% | $36.5 |
| Q3 2025 | 1,748,002 | 27,102 | -1.5% | $60.6M | 3.1% | $34.7 |
| Q2 2025 | 1,775,104 | 153,859 | -8.0% | $61.0M | 3.1% | $34.4 |
| Q1 2025 | 1,928,963 | 480,184 | -19.9% | $57.2M | 3.0% | $29.6 |
| Q4 2024 | 2,409,147 | +211,245 | +9.6% | $83.5M | 3.9% | $34.6 |
| Q3 2024 | 2,197,902 | 35,056 | -1.6% | $85.9M | 4.1% | $39.1 |
| Q2 2024 | 2,232,958 | +207,041 | +10.2% | $99.2M | 4.3% | $44.4 |
| Q1 2024 | 2,025,917 | 461,656 | -18.6% | $95.6M | 3.7% | $47.2 |
| Q4 2023 | 2,487,573 | 84,732 | -3.3% | $111.1M | 4.3% | $44.7 |
| Q3 2023 | 2,572,305 | 205,886 | -7.4% | $94.6M | 3.5% | $36.8 |
| Q2 2023 | 2,778,191 | 497,301 | -15.2% | $122.0M | 4.3% | $43.9 |
| Q1 2023 | 3,275,492 | 448,062 | -12.0% | $145.5M | 4.9% | $44.4 |
| Q4 2022 | 3,723,554 | 1,575,625 | -29.7% | $124.9M | 4.4% | $33.5 |
| Q3 2022 | 5,299,179 | 236,456 | -4.3% | $157.5M | 4.0% | $29.7 |
| Q2 2022 | 5,535,635 | 175,874 | -3.1% | $160.3M | 3.4% | $28.9 |
| Q1 2022 | 5,711,509 | 135,120 | -2.3% | $239.5M | 4.2% | $41.9 |
| Q4 2021 | 5,846,629 | +321,175 | +5.8% | $262.4M | 4.4% | $44.9 |
| Q3 2021 | 5,525,454 | 95,383 | -1.7% | $238.4M | 4.5% | $43.2 |
| Q2 2021 | 5,620,837 | 4,527 | -0.1% | $239.7M | 4.8% | $42.6 |
| Q1 2021 | 5,625,364 | 1,427,700 | -20.2% | $213.7M | 4.6% | $38.0 |
| Q4 2020 | 7,053,064 | +2,090,108 | +42.1% | $222.2M | 5.0% | $31.5 |
| Q3 2020 | 4,962,956 | — | — | $107.9M | 2.8% | $21.7 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did SOUTHEASTERN ASSET MANAGEMENT INC/TN/ first disclose a MGM position in 13F-HR filings?
SOUTHEASTERN ASSET MANAGEMENT INC/TN/ first reported MGM RESORTS INTERNATIONAL (MGM) on its 13F-HR filing for the period ending 2020-09-30 (Q3 2020). The position has appeared on 23 reported quarters within Pactolio's tracked window.
What was SOUTHEASTERN ASSET MANAGEMENT INC/TN/'s most recent quarter-over-quarter share-count change in MGM?
Between Q4 2025 and Q1 2026, SOUTHEASTERN ASSET MANAGEMENT INC/TN/ reduced its MGM position by 370,408 shares (-18.2%), leaving 1,662,961 shares at a market value of $61.5M.
Does the implied price-per-share represent SOUTHEASTERN ASSET MANAGEMENT INC/TN/'s cost basis in MGM?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.