Who Owns Mosaic Co
Every manager with more than $100m in listed equities files a 13F each quarter naming what they hold. These are the ones reporting a position in Mosaic Co.
Who crossed 5% of MOS →Positions as of 2026-09-30
Largest first. The move is against the previous quarter that manager filed, not the previous calendar quarter.
| Manager | Value |
|---|---|
| Ridgewood Investments LLCCOM61.7K shadded | $1.3M |
| GAMMA Investing LLCCommon Stock21.5K shadded | $464.6K |
| Plan A Wealth LLCCOM16.1K shadded | $348.7K |
| Farther Finance Advisors, LLCStock15.4K shadded | $332.4K |
| Investors Research CorpCOM10.1K shheld | $219.2K |
| RIVERSEDGE ADVISORS, LLCCOM9.3K sh— | $200.9K |
| Byrne Asset Management LLCCOM7.3K shtrimmed | $156.2K |
| CoreCap Advisors, LLCStock1K shtrimmed | $22.2K |
| Grove Bank & TrustCOM443 shheld | $9.6K |
| ELEVATION WEALTH PARTNERS, LLCCOM362 shtrimmed | $7.8K |
| MassMutual Private Wealth & Trust, FSBCommon / Ordinary Stock197 shadded | $4.3K |
| GILPIN WEALTH MANAGEMENT, LLCCOM126 sh— | $2.7K |
| Marquette Asset Management, LLCCOM41 sh— | $888 |
| Trust CoStock10 shheld | $217 |
Source: quarterly 13F filings, via EDGAR. A 13F reports positions by CUSIP alone; each CUSIP here has been confirmed against OpenFIGI rather than matched by name, because a name match would attribute one company's shareholders to another. Positions are as of quarter end and can be months old by the time they are filed, and 13F covers long equity positions only — not shorts, and not most debt. The summed value is what these filers reported, not the company's institutional ownership.
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