Who owns MOS?
Institutional ownership of Mosaic Company from Form 13F, Q2 2026
664 institutional managers reported holding Mosaic Company (MOS) in Form 13F filings for Q2 2026, with 303,302,726 shares worth $6.4B. The largest reported holder was BlackRock, Inc. Managers that filed both quarters added a net 15,980,668 shares (+5.7%). 91 opened new positions and 125 sold out.
- Funds holding
- 664
- Value held
- $6.4B
- New / sold out
- 91 / 125
- Net shares, same filers
- +5.7%
Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
Largest holders of MOS
| Fund | Value | Share of 13F holdings | Shares | Move |
|---|---|---|---|---|
| BlackRock, Inc. | $524M | 8.2% | 24,751,481 | Added |
| Vanguard Capital Management LLC | $440M | 6.8% | 20,744,667 | Added |
| AQR Capital Management LLC | $388M | 6.0% | 18,292,494 | Added |
| State Street Corp | $319M | 5.0% | 15,039,070 | Added |
| Invesco Ltd. | $316M | 4.9% | 14,904,222 | Added |
| Vanguard Portfolio Management LLC | $313M | 4.9% | 14,759,347 | Trimmed |
| Dimensional Fund Advisors LP | $305M | 4.8% | 14,411,407 | Added |
| FMR LLC | $280M | 4.4% | 13,199,733 | Trimmed |
| Geode Capital Management, LLC | $189M | 2.9% | 8,919,117 | Added |
| Donald Smith & Co., Inc. | $164M | 2.5% | 7,723,547 | Added |
| Millennium Management LLC | $140M | 2.2% | 6,591,349 | Added |
| Morgan Stanley | $109M | 1.7% | 5,152,979 | Added |
| Northern Trust Corp | $109M | 1.7% | 5,138,691 | Trimmed |
| Nykredit A/S | $108M | 1.7% | 5,112,277 | First report |
| Norges Bank | $97.2M | 1.5% | 4,587,982 | New |
| Goldman Sachs Group Inc | $88.9M | 1.4% | 4,195,842 | Trimmed |
| Charles Schwab Investment Management Inc | $88.2M | 1.4% | 4,161,262 | Added |
| Deutsche Bank Ag\ | $73.1M | 1.1% | 3,450,286 | Added |
| Price T Rowe Associates Inc | $73.1M | 1.1% | 3,447,391 | Trimmed |
| UBS Group AG | $70.8M | 1.1% | 3,343,319 | Added |
| Thompson Siegel & Walmsley LLC | $62.8M | 1.0% | 2,961,417 | Trimmed |
| Capital International Investors | $59.0M | 0.9% | 2,784,080 | New |
| Wellington Management Group LLP | $58.4M | 0.9% | 2,755,216 | Added |
| Allianz Asset Management GmbH | $58.1M | 0.9% | 2,678,708 | Added |
| Bank of New York Mellon Corp | $57.3M | 0.9% | 2,703,415 | Trimmed |
Share of 13F holdings is each fund's shares as a share of the 303,302,726 MOS shares all 13F filers reported, not of shares outstanding.
Biggest buyers in Q2 2026
- AQR Capital Management LLC Added+$156M
- Millennium Management LLC Added+$135M
- Norges Bank New+$97.2M
- Invesco Ltd. Added+$77.7M
- Donald Smith & Co., Inc. Added+$65.8M
- Capital International Investors New+$59.0M
- Maple Rock Capital Partners Inc. New+$56.8M
- Citigroup Inc Added+$40.8M
- State Street Corp Added+$34.6M
- UBS Group AG Added+$30.3M
Biggest sellers in Q2 2026
- FMR LLC Trimmed-$336M
- Arrowstreet Capital, Limited Partnership Sold out-$82.6M
- Goldman Sachs Group Inc Trimmed-$54.9M
- Citadel Advisors LLC Trimmed-$44.3M
- Price T Rowe Associates Inc Trimmed-$43.4M
- Marshall Wace, LLP Trimmed-$40.8M
- Randolph Co Inc Sold out-$35.2M
- Bank of New York Mellon Corp Trimmed-$30.4M
- Ceredex Value Advisors LLC Sold out-$18.2M
- Alyeska Investment Group, L.P. Sold out-$16.4M
The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $1.3B and sold $1.0B; 275 added and 207 trimmed.
Schedule 13D and 13G filings on MOS
Owners of more than 5% must file within days, so these can be newer than the 13F data.
- 2026-08-12AQR CAPITAL MANAGEMENT LLC SCHEDULE 13G filed by Mosaic CompanySchedule 13G
- 2025-08-06FMR LLC SCHEDULE 13G filed by Mosaic CompanySchedule 13G
Questions about MOS ownership
- Who owns MOS stock?
- 664 institutional investment managers reported MOS positions in their Form 13F filings for Q2 2026, holding 303,302,726 shares worth $6.4B in total. BlackRock, Inc. reported the largest position.
- Are funds buying or selling MOS?
- In Q2 2026, 91 managers opened new MOS positions, 275 added, 207 trimmed and 125 sold out. Managers that filed in both quarters added a net 15,980,668 shares.
- How current is this MOS institutional ownership data?
- It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to MOS by CUSIP. Options are left out. MOS news and filings · MOS insider trades · Top funds