🕵️ Mosaic Co ($MOS)
SEC insider & ownership activity, last 12 months · CIK 1285785 · every row links its SEC filing
Over the last 12 months insiders sold $509K against $17K of open-market buying. Walter F. Precourt III sold $509K in discretionary trades (Aug). BlackRock, Inc. trimmed 9.0% → 6.7%. 2 red-flag 8-Ks in the window, most recently Debt acceleration (2.04), Aug 28, 2026.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $17K (1 lots) · 1 seller, $509K (1 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Walter F. Precourt III | 0 | – | 1 | $509K | Aug 19, 2026 |
| Kuzenko Jody Lynne | 1 | $17K | 0 | – | Nov 11, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Vanguard Capital Management | 7.4% | 13G | Apr 30, 2026 | filing ↗ | |
| BlackRock, Inc. | 6.7% | 13G | Apr 17, 2025 | filing ↗ | |
| AQR Capital Management, LLC | 5.8% | 13G | Aug 12, 2026 | filing ↗ | |
| AQR Capital Management Holdings, LLC | 5.8% | 13G | Aug 12, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Walter F. Precourt III | $509K | Aug 19, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Debt acceleration (2.04) | Aug 28, 2026 | filing ↗ |
| New financial obligation (2.03) | Aug 17, 2026 | filing ↗ |
| Other events (8.01) | Aug 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 17, 2026 | filing ↗ |
| Other events (8.01) | Aug 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 17, 2026 | filing ↗ |
| Other events (8.01) | Aug 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 14, 2026 | filing ↗ |
| Other events (8.01) | Aug 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 10, 2026 | filing ↗ |
| Earnings (2.02) | Aug 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 4, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 10, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 29, 2026 | filing ↗ |
| Earnings (2.02) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Impairment (2.06) | Apr 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 16, 2026 | filing ↗ |
| Earnings (2.02) | Dec 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 31, 2025 | filing ↗ |
| New financial obligation (2.03) | Nov 13, 2025 | filing ↗ |
| Other events (8.01) | Nov 13, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 13, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 10, 2025 | filing ↗ |
| Earnings (2.02) | Sep 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 30, 2025 | filing ↗ |