Congress Trades in The Mosaic Company (MOS)
7 members of Congress have disclosed trading MOS.
7 members of Congress have disclosed trading The Mosaic Company (MOS), with 11 transactions in total — 7 purchases and 4 sales worth an estimated $88,000 at range midpoints, leaning toward buying. The most active MOS trader is Katherine M. Clark (3 disclosures). The most recent disclosed MOS trade was on Sep 23, 2025. See our full MOS fundamentals page for price, valuation and a return calculator.
Corporate insiders in MOS
It's not just Congress — here's what MOS's own executives and directors have done with the stock recently, from SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Aug 19, 2026 | Precourt Walter F. III | SVP - Chief Admin Officer | Sell | 23,000 | $508,760 |
Every disclosed MOS trade
| Disclosed | Politician | Type | Amount | Traded | |
|---|---|---|---|---|---|
| Sep 23, 2025 | Valerie Hoyle D | Sale | $1,001 - $15,000 | Sep 23, 2025 | filing ↗ |
| Aug 1, 2023 | Daniel Goldman | Sale | $1,001 - $15,000 | Jun 29, 2023 | filing ↗ |
| Aug 4, 2022 | Virginia Foxx R | Purchase | $1,001 - $15,000 | Aug 4, 2022 | filing ↗ |
| Jul 29, 2022 | Virginia Foxx R | Purchase | $1,001 - $15,000 | Jul 29, 2022 | filing ↗ |
| Feb 19, 2021 | Peter Meijer R | Sale | $1,001 - $15,000 | Feb 16, 2021 | filing ↗ |
| Nov 27, 2020 | Katherine M. Clark D | Sale | $1,001 - $15,000 | Oct 22, 2020 | filing ↗ |
| May 21, 2020 | Katherine M. Clark D | Purchase | $1,001 - $15,000 | Apr 3, 2020 | filing ↗ |
| May 6, 2020 | Dean Phillips D | Purchase | $1,001 - $15,000 | Apr 2, 2020 | filing ↗ |
| Sep 9, 2019 | Katherine M. Clark D | Purchase | $1,001 - $15,000 | Jul 9, 2019 | filing ↗ |
| Jun 7, 2019 | Gilbert Cisneros D | Purchase | $1,001 - $15,000 | May 9, 2019 | filing ↗ |
| Feb 5, 2019 | Dean Phillips D | Purchase | $1,001 - $15,000 | Jan 4, 2019 | filing ↗ |
Most active MOS traders in Congress
Katherine M. Clark
Democrat
3 trades
Virginia Foxx
Republican
2 trades
Dean Phillips
Democrat
2 trades
Valerie Hoyle
Democrat
1 trade
DG
Daniel Goldman
1 trade
Peter Meijer
Republican
1 trade
Gilbert Cisneros
Democrat
1 trade
Source: US House Clerk Periodic Transaction Reports. Amounts are disclosed as ranges; estimates use range midpoints. Data may be delayed or contain filer errors. Updated Aug 26, 2026. Not investment advice.