The Mosaic Company
The Mosaic Company (MOS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MOS · as of Sep 30, 2025
Ownership Breakdown
779
Institutional Holders
▲ 12 vs Q2
$10.24B
Total Inst. Value
▼ $433.42M vs Q2
317.85M
Shares Outstanding
freeFloat 99.39%
295.17M
13F Shares Held
▲ 2.57M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MOS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC agricultural chemicals | 38.66M | 12.14% | 12.14% | $1.34T | Nov 7, 2025 | ▲ 161.0K |
FMR LLC agricultural chemicals | 37.01M | 11.62% | 11.62% | $1.28T | Nov 13, 2025 | ▲ 16.04M |
BLACKROCK, INC. agricultural chemicals | 25.66M | 8.06% | 8.06% | $889.74B | Nov 12, 2025 | ▲ 668.6K |
STATE STREET CORP agricultural chemicals | 12.93M | 4.06% | 4.06% | $448.57B | Nov 14, 2025 | ▼ 121.7K |
DIMENSIONAL FUND ADVISORS LP agricultural chemicals | 12.58M | 3.95% | 3.95% | $436.14B | Nov 12, 2025 | ▲ 1.29M |
INVESCO LTD. agricultural chemicals | 9.19M | 2.88% | 2.88% | $318.59B | Nov 13, 2025 | ▲ 331.7K |
AQR CAPITAL MANAGEMENT LLC agricultural chemicals | 8.45M | 2.65% | 2.65% | $291.35B | Nov 14, 2025 | ▲ 7.29M |
GEODE CAPITAL MANAGEMENT, LLC agricultural chemicals | 8.42M | 2.64% | 2.64% | $291.32B | Nov 12, 2025 | ▲ 198.6K |
BANK OF NEW YORK MELLON CORP agricultural chemicals | 7.70M | 2.42% | 2.42% | $267.09B | Nov 3, 2025 | ▲ 3.89M |
MORGAN STANLEY agricultural chemicals | 5.20M | 1.63% | 1.63% | $180.48B | May 27, 2026 | ▼ 136.7K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
28
Increased
+38.18M shares1
New Positions
first time holders21
Decreased
−11.36M shares0
Sold Out
fully exitedNet shares change (top 50)
+26.82M
+38.18M / −11.36M
Net new holders
+8
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MOS insider trading · insider activity
Source: SEC Form 4
8
Buy transactions
2
Sell transactions
4.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Kuzenko Jody Lynne director | May 28, 2026 | Award | 7,273 | — | — | 7.3K | Form 4 ↗ |
Shanahan Kathleen M director | May 28, 2026 | Award | 7,273 | — | — | 7.3K | Form 4 ↗ |
Gitzel Timothy S. director | May 28, 2026 | Award | 7,273 | — | — | 7.3K | Form 4 ↗ |
Watkins Gretchen H director | May 28, 2026 | Award | 7,273 | — | — | 7.3K | Form 4 ↗ |
Koenig Emery N. director | May 28, 2026 | Award | 7,273 | — | — | 7.3K | Form 4 ↗ |
Teixeira Joao Roberto Goncalves director | May 28, 2026 | Award | 7,273 | — | — | 7.3K | Form 4 ↗ |
BEEBE CHERYL K director | May 28, 2026 | Award | 7,273 | — | — | 7.3K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
The Mosaic Company (MOS) is primarily owned by institutional investors, who hold approximately 92.9% of total shares outstanding. Company insiders own approximately 0.61%, while retail and public investors account for the remaining 6.53%.
The largest institutional shareholder of The Mosaic Company is VANGUARD GROUP INC, holding approximately 38.66 million shares — equal to 12.14% of outstanding shares — as of September 30, 2025.
A total of 779 institutional investors currently hold MOS stock, with a combined institutional value of approximately $10.24 billion as of the most recent 13F filing period.
Frequently asked questions
MOS ownershipThe Mosaic Company (MOS) is primarily owned by institutional investors, who hold approximately 92.9% of shares. The largest shareholder is VANGUARD GROUP INC with a 12.14% stake. Company insiders hold 0.61%. Data sourced from SEC Form 13F as of September 30, 2025.