William Hornbuckle
CIK 1183302 · View on SEC EDGAR ↗
First SEC filing: Feb. 25, 2026 · Latest: Feb. 25, 2026
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 5, 2024 | MGM | P | 58,900 | $33.73 | $1,986,697 | 377,112 Direct | +18.51% | Acquired | 28.1% (price as of 2026-08-21) |
| Feb. 9, 2023 | MGM | S 10b5-1 | 110,000 | $44.86 | $4,934,600 | 172,781 Indirect | -38.90% | Disposed | -3.7% (price as of 2026-08-21) |
| Jan. 26, 2023 | MGM | S 10b5-1 | 120,000 | $41.00 | $4,920,000 | 282,781 Indirect | -29.79% | Disposed | 5.4% (price as of 2026-08-21) |
Showing latest 100 of 527 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Aug. 3, 2026 | MTN | Restricted Share Unit | Common Stock (249) | $0.00 | — | 249 | Acquired |
| Feb. 24, 2026 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (5,657) | — | Feb. 24, 2026 | 5,657 | Disposed |
| Feb. 23, 2026 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (6,683) | — | Feb. 23, 2027 | 6,683 | Disposed |
| Oct. 7, 2025 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (32,441) | — | Oct. 7, 2027 | 32,441 | Disposed |
| Oct. 6, 2025 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (147,406) | — | Oct. 6, 2028 | 147,406 | Acquired |
| Oct. 4, 2025 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (17,980) | — | Oct. 4, 2025 | 17,980 | Disposed |
| Oct. 3, 2025 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (32,671) | — | Oct. 3, 2026 | 32,671 | Disposed |
| Oct. 2, 2025 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (27,182) | — | Oct. 2, 2027 | 27,182 | Disposed |
| Feb. 24, 2025 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (5,658) | — | Feb. 24, 2026 | 5,658 | Disposed |
| Feb. 23, 2025 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (6,683) | — | Feb. 23, 2027 | 6,683 | Disposed |
| Oct. 7, 2024 | MGM | Performance Share Units | Common Stock $.01 Par Value ND (69,293) | — | Oct. 7, 2027 | 69,293 | Acquired |
| Oct. 7, 2024 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (97,324) | — | Oct. 7, 2027 | 97,324 | Acquired |
| Oct. 4, 2024 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (17,979) | — | Oct. 4, 2025 | 17,979 | Disposed |
| Oct. 3, 2024 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (32,671) | — | Oct. 3, 2026 | 32,671 | Disposed |
| Oct. 2, 2024 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (27,181) | — | Oct. 2, 2027 | 27,181 | Disposed |
| Aug. 18, 2024 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (38,213) | — | Aug. 18, 2024 | 38,213 | Disposed |
| April 1, 2024 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (11,259) | — | April 1, 2024 | 11,259 | Disposed |
| Feb. 27, 2024 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (4,602) | — | Feb. 27, 2024 | 4,602 | Disposed |
| Feb. 24, 2024 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (5,657) | — | Feb. 24, 2026 | 5,657 | Disposed |
| Feb. 23, 2024 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (6,684) | — | Feb. 23, 2027 | 6,684 | Disposed |
| Oct. 4, 2023 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (17,980) | — | Oct. 4, 2025 | 17,980 | Disposed |
| Oct. 3, 2023 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (32,672) | — | Oct. 3, 2026 | 32,672 | Disposed |
| Oct. 2, 2023 | MGM | Performance Share Units | Common Stock $.01 Par Value ND (88,185) | — | Oct. 2, 2026 | 88,185 | Acquired |
| Oct. 2, 2023 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (108,726) | — | Oct. 2, 2027 | 108,726 | Acquired |
| Aug. 18, 2023 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (38,212) | — | Aug. 18, 2024 | 38,212 | Disposed |
| April 1, 2023 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (11,259) | — | April 1, 2024 | 11,259 | Disposed |
| Feb. 27, 2023 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (4,604) | — | Feb. 27, 2024 | 4,604 | Disposed |
| Feb. 24, 2023 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (5,658) | — | Feb. 24, 2026 | 5,658 | Disposed |
| Feb. 23, 2023 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (26,733) | — | Feb. 23, 2027 | 26,733 | Acquired |
| Feb. 21, 2023 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (3,123) | — | Feb. 21, 2023 | 3,123 | Disposed |
| Dec. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Feb. 27, 2024 | 1 | Acquired |
| Dec. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (9) | — | Oct. 3, 2026 | 9 | Acquired |
| Dec. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (2) | — | Feb. 24, 2026 | 2 | Acquired |
| Dec. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (4) | — | Oct. 4, 2025 | 4 | Acquired |
| Dec. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (5) | — | Aug. 18, 2024 | 5 | Acquired |
| Dec. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (2) | — | April 1, 2024 | 2 | Acquired |
| Dec. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (0) | — | Feb. 21, 2023 | 0 | Acquired |
| Oct. 19, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (10,714) | — | Oct. 19, 2022 | 10,714 | Disposed |
| Oct. 4, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (17,978) | — | Oct. 4, 2025 | 17,978 | Disposed |
| Oct. 3, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (130,677) | — | Oct. 3, 2026 | 130,677 | Acquired |
| Sept. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (6) | — | Aug. 18, 2024 | 6 | Acquired |
| Sept. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (5) | — | Oct. 4, 2025 | 5 | Acquired |
| Sept. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (2) | — | Feb. 24, 2026 | 2 | Acquired |
| Sept. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (2) | — | April 1, 2024 | 2 | Acquired |
| Sept. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Feb. 27, 2024 | 1 | Acquired |
| Sept. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (0) | — | Feb. 21, 2023 | 0 | Acquired |
| Sept. 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Oct. 19, 2022 | 1 | Acquired |
| Aug. 18, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (38,208) | — | Aug. 18, 2024 | 38,208 | Disposed |
| June 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (2) | — | Feb. 24, 2026 | 2 | Acquired |
| June 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (6) | — | Oct. 4, 2025 | 6 | Acquired |
| June 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (10) | — | Aug. 18, 2024 | 10 | Acquired |
| June 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (2) | — | April 1, 2024 | 2 | Acquired |
| June 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Feb. 27, 2024 | 1 | Acquired |
| June 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (0) | — | Feb. 21, 2023 | 0 | Acquired |
| June 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Oct. 19, 2022 | 1 | Acquired |
| April 1, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (11,257) | — | April 1, 2024 | 11,257 | Disposed |
| April 1, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (290,179) | — | April 1, 2022 | 290,179 | Disposed |
| April 1, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (290,179) | — | April 1, 2022 | 290,179 | Disposed |
| April 1, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (11,257) | — | April 1, 2024 | 11,257 | Disposed |
| March 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (4) | — | Oct. 4, 2025 | 4 | Acquired |
| March 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Feb. 24, 2026 | 1 | Acquired |
| March 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (7) | — | Aug. 18, 2024 | 7 | Acquired |
| March 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (18) | — | April 1, 2022 | 18 | Acquired |
| March 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (2) | — | April 1, 2024 | 2 | Acquired |
| March 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Feb. 27, 2024 | 1 | Acquired |
| March 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (0) | — | Feb. 21, 2023 | 0 | Acquired |
| March 15, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Oct. 19, 2022 | 1 | Acquired |
| Feb. 27, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (4,605) | — | Feb. 27, 2024 | 4,605 | Disposed |
| Feb. 24, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (22,624) | — | Feb. 24, 2026 | 22,624 | Acquired |
| Feb. 21, 2022 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (3,125) | — | Feb. 21, 2023 | 3,125 | Disposed |
| Dec. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (4) | — | Oct. 4, 2025 | 4 | Acquired |
| Dec. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (7) | — | Aug. 18, 2024 | 7 | Acquired |
| Dec. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (18) | — | April 1, 2022 | 18 | Acquired |
| Dec. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (2) | — | April 1, 2024 | 2 | Acquired |
| Dec. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Feb. 27, 2024 | 1 | Acquired |
| Dec. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (0) | — | Feb. 21, 2023 | 0 | Acquired |
| Dec. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Oct. 19, 2022 | 1 | Acquired |
| Nov. 14, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (8,019) | — | Nov. 14, 2021 | 8,019 | Disposed |
| Oct. 19, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (10,713) | — | Oct. 19, 2022 | 10,713 | Disposed |
| Oct. 4, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (71,894) | — | Oct. 4, 2025 | 71,894 | Acquired |
| Sept. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (7) | — | Aug. 18, 2024 | 7 | Acquired |
| Sept. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (18) | — | April 1, 2022 | 18 | Acquired |
| Sept. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (2) | — | April 1, 2024 | 2 | Acquired |
| Sept. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Feb. 27, 2024 | 1 | Acquired |
| Sept. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (0) | — | Feb. 21, 2023 | 0 | Acquired |
| Sept. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Oct. 19, 2022 | 1 | Acquired |
| Sept. 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (0) | — | Nov. 14, 2021 | 0 | Acquired |
| Aug. 18, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (38,198) | — | Aug. 18, 2024 | 38,198 | Disposed |
| June 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (9) | — | Aug. 18, 2024 | 9 | Acquired |
| June 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (17) | — | April 1, 2022 | 17 | Acquired |
| June 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (2) | — | April 1, 2024 | 2 | Acquired |
| June 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Feb. 27, 2024 | 1 | Acquired |
| June 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (0) | — | Feb. 21, 2023 | 0 | Acquired |
| June 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Oct. 19, 2022 | 1 | Acquired |
| June 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (0) | — | Nov. 14, 2021 | 0 | Acquired |
| April 1, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (11,254) | — | April 1, 2024 | 11,254 | Disposed |
| March 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (9) | — | Aug. 18, 2024 | 9 | Acquired |
| March 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (18) | — | April 1, 2022 | 18 | Acquired |
| March 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (3) | — | April 1, 2024 | 3 | Acquired |
| March 15, 2021 | MGM | Restricted Stock Units | Common Stock $.01 Par Value ND (1) | — | Feb. 27, 2024 | 1 | Acquired |
Showing latest 100 of 287 transactions
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 13 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| May 5, 2025 | GBFH | Common Stock | 22,446 | Direct |
| May 5, 2025 | GBFH | Common Stock | 399,285 | Indirect |
| May 5, 2025 | GBFH | Restricted Stock Grant→ Common Stock (2,000) | 2,000 | Indirect |
| May 5, 2025 | GBFH | Restricted Stock Grant→ Common Stock (1,000) | 1,000 | Indirect |
| May 5, 2025 | GBFH | Restricted Stock Grant→ Common Stock (900) | 900 | Direct |
| May 5, 2025 | GBFH | Restricted Stock Grant→ Common Stock (1,800) | 1,800 | Direct |
| May 5, 2025 | GBFH | Restricted Stock Grant→ Common Stock (1,800) | 1,800 | Direct |
| June 18, 2010 | MGM | Common Stock $.01 Par Value ND | 8,144 | Direct |
| June 18, 2010 | MGM | Emp Stk Option (Right to Buy)→ Common Stock $.01 Par Value ND | — | Direct |
| June 18, 2010 | MGM | Employee Stock Appreciation Rights→ Common Stock $.01 Par Value ND | — | Direct |
| June 18, 2010 | MGM | Employee Stock Appreciation Rights→ Common Stock $.01 Par Value ND | — | Direct |
| June 18, 2010 | MGM | Restricted Stock Units→ Common Stock $.01 Par Value ND (2,813) | 2,813 | Direct |
| June 18, 2010 | MGM | Restricted Stock Units→ Common Stock $.01 Par Value ND (15,642) | 15,642 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
MGM
CEO| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2024 | $2,000,000 | — | $10,000,000 | — | $3,672,373 | — | $147,211 | $15,819,584 |
| 2023 | $2,000,000 | — | $10,000,000 | — | $4,774,912 | — | $228,882 | $17,003,794 |
| 2022 | $1,667,123 | — | $10,000,000 | — | $4,328,524 | — | $242,428 | $16,238,075 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.