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Ken Griffin's The Mosaic Company (MOS) position

Yes: as of Q1 2026, Ken Griffin holds 3.1M shares of MOS worth $78M (0.1% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
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Current value
$78M
Shares held
3.1M
% of portfolio
0.1%
Est. average buy price (i)
$28.03
est. since Q1 2021
Quarter-end price
$25.50

Estimated trade prices

Average price in quarters with purchases
$32.88
Average prices in quarters with sales
  • Q3 2025: $34.44 (1.3M shares sold)
  • Q2 2025: $32.04 (770K shares sold)
  • Q3 2024: $27.51 (539K shares sold)
  • Q1 2024: $31.85 (1.6M shares sold)
  • Q1 2023: $48.43 (414K shares sold)
  • Q3 2022: $51.68 (265K shares sold)
  • Q1 2022: $50.01 (994K shares sold)
  • Q3 2021: $31.98 (290K shares sold)

MOS price vs Griffin's position

1Y 3Y 5Y MAX
Dates
$20$50$10020222023202420252026Sold 290K shares (24.5%) · Q3 2021. Average closing price $31.98 · Price range $28.79–$36.84290KsharessoldAdded 183K shares (20.5%) · Q4 2021. Average closing price $38.29 · Price range $33.62–$42.47183KsharespurchasedSold 994K shares (92.2%) · Q1 2022. Average closing price $50.01 · Price range $39.00–$71.34994KsharessoldAdded 298K shares (353.1%) · Q2 2022. Average closing price $61.26 · Price range $45.24–$78.15298KsharespurchasedSold 265K shares (69.3%) · Q3 2022. Average closing price $51.68 · Price range $43.67–$61.94265KsharessoldAdded 335K shares (285.2%) · Q4 2022. Average closing price $49.51 · Price range $43.41–$54.45335KsharespurchasedSold 414K shares (91.5%) · Q1 2023. Average closing price $48.43 · Price range $42.39–$57.14414KsharessoldAdded 192K shares (500.5%) · Q2 2023. Average closing price $38.64 · Price range $31.71–$47.46192KsharespurchasedAdded 302K shares (131.5%) · Q3 2023. Average closing price $38.37 · Price range $34.88–$42.41302KsharespurchasedAdded 1.7M shares (323.4%) · Q4 2023. Average closing price $35.32 · Price range $31.93–$38.151.7MsharespurchasedSold 1.6M shares (72.1%) · Q1 2024. Average closing price $31.85 · Price range $29.51–$36.651.6MsharessoldAdded 2.2M shares (351.9%) · Q2 2024. Average closing price $30.13 · Price range $26.90–$33.312.2MsharespurchasedSold 539K shares (19.0%) · Q3 2024. Average closing price $27.51 · Price range $24.54–$30.61539KsharessoldAdded 318K shares (13.8%) · Q4 2024. Average closing price $26.15 · Price range $23.87–$28.34318KsharespurchasedAdded 259K shares (9.9%) · Q1 2025. Average closing price $26.45 · Price range $23.08–$28.80259KsharespurchasedSold 770K shares (26.7%) · Q2 2025. Average closing price $32.04 · Price range $22.76–$36.95770KsharessoldSold 1.3M shares (60.3%) · Q3 2025. Average closing price $34.44 · Price range $30.93–$37.811.3MsharessoldAdded 1.3M shares (157.8%) · Q4 2025. Average closing price $26.92 · Price range $23.37–$35.451.3MsharespurchasedAdded 910K shares (42.2%) · Q1 2026. Average closing price $27.43 · Price range $23.59–$32.17910Ksharespurchased← Earlier —1 purchase
Average closing price · filing quarter
$27.43
Price range · filing quarter
$23.59 – $32.17
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +910K +$25M +42.2% 3.1M May 15, 2026
Q4 2025 Added +1.3M +$36M +157.8% 2.2M Feb 17, 2026
Q3 2025 Reduced −1.3M −$44M −60.3% 837K Nov 14, 2025
Q2 2025 Reduced −770K −$25M −26.7% 2.1M Aug 14, 2025
Q1 2025 Added +259K +$6.9M +9.9% 2.9M May 15, 2025
Q4 2024 Added +318K +$8.3M +13.8% 2.6M Feb 14, 2025
Q3 2024 Reduced −539K −$15M −19.0% 2.3M Nov 14, 2024
Q2 2024 Added +2.2M +$67M +351.9% 2.8M Aug 14, 2024
Q1 2024 Reduced −1.6M −$52M −72.1% 628K May 15, 2024
Q4 2023 Added +1.7M +$61M +323.4% 2.3M Feb 14, 2024
Q3 2023 Added +302K +$12M +131.5% 532K Nov 14, 2023
Q2 2023 Added +192K +$7.4M +500.5% 230K Aug 14, 2023
Q1 2023 Reduced −414K −$20M −91.5% 38K May 15, 2023
Q4 2022 Added +335K +$17M +285.2% 452K Feb 14, 2023
Q3 2022 Reduced −265K −$14M −69.3% 117K Nov 14, 2022
Q2 2022 Added +298K +$18M +353.1% 382K Aug 15, 2022
Q1 2022 Reduced −994K −$50M −92.2% 84K May 16, 2022
Q4 2021 Added +183K +$7.0M +20.5% 1.1M Feb 14, 2022
Q3 2021 Reduced −290K −$9.3M −24.5% 895K Nov 15, 2021
Q2 2021 Added +706K +$24M +147.4% 1.2M Aug 16, 2021
Q1 2021 First covered – – – 479K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
21 grouped rows from 21 quarters

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Common questions

Does Ken Griffin own MOS?

Yes. As of Q1 2026, Ken Griffin disclosed 3.1M shares of MOS, worth $78M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy MOS?

Ken Griffin held MOS since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell MOS?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in MOS. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of MOS does Ken Griffin own?

Ken Griffin disclosed 3.1M shares of MOS as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for MOS?

Ken Griffin began building the MOS position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.