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Joel Greenblatt's The Mosaic Company (MOS) position

Yes: as of Q1 2026, Joel Greenblatt holds 262K shares of MOS worth $6.7M (0.0% 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
$6.7M
Shares held
262K
% of portfolio
0.0%
Est. average buy price (i)
$32.01
est. since Q1 2021
Quarter-end price
$25.50

Estimated trade prices

Average price in quarters with purchases
$33.73
Average prices in quarters with sales
  • Q1 2026: $27.43 (7K shares sold)
  • Q4 2025: $26.92 (168K shares sold)
  • Q3 2025: $34.44 (53K shares sold)
  • Q1 2025: $26.45 (283K shares sold)
  • Q4 2024: $26.15 (259K shares sold)
  • Q1 2024: $31.85 (69K shares sold)
  • Q4 2023: $35.32 (29K shares sold)
  • Q3 2023: $38.37 (16K shares sold)
  • Q4 2022: $49.51 (10K shares sold)
  • Q1 2022: $50.01 (29K shares sold)
  • Q4 2021: $38.29 (123K shares sold)
  • Q3 2021: $31.98 (18K shares sold)

MOS price vs Greenblatt's position

1Y 3Y 5Y MAX
Dates
$20$50$10020222023202420252026Sold 18K shares (8.9%) · Q3 2021. Average closing price $31.98 · Price range $28.79–$36.8418KsharessoldSold 123K shares (66.2%) · Q4 2021. Average closing price $38.29 · Price range $33.62–$42.47123KsharessoldSold 29K shares (46.6%) · Q1 2022. Average closing price $50.01 · Price range $39.00–$71.3429KsharessoldAdded 49K shares (147.3%) · Q2 2022. Average closing price $61.26 · Price range $45.24–$78.1549KsharespurchasedAdded 120K shares (145.9%) · Q3 2022. Average closing price $51.68 · Price range $43.67–$61.94120KsharespurchasedSold 10K shares (4.7%) · Q4 2022. Average closing price $49.51 · Price range $43.41–$54.4510KsharessoldAdded 15K shares (7.8%) · Q1 2023. Average closing price $48.43 · Price range $42.39–$57.1415KsharespurchasedAdded 84K shares (40.1%) · Q2 2023. Average closing price $38.64 · Price range $31.71–$47.4684KsharespurchasedSold 16K shares (5.4%) · Q3 2023. Average closing price $38.37 · Price range $34.88–$42.4116KsharessoldSold 29K shares (10.5%) · Q4 2023. Average closing price $35.32 · Price range $31.93–$38.1529KsharessoldSold 69K shares (27.9%) · Q1 2024. Average closing price $31.85 · Price range $29.51–$36.6569KsharessoldAdded 19K shares (10.5%) · Q2 2024. Average closing price $30.13 · Price range $26.90–$33.3119KsharespurchasedAdded 595K shares (302.2%) · Q3 2024. Average closing price $27.51 · Price range $24.54–$30.61595KsharespurchasedSold 259K shares (32.7%) · Q4 2024. Average closing price $26.15 · Price range $23.87–$28.34259KsharessoldSold 283K shares (53.0%) · Q1 2025. Average closing price $26.45 · Price range $23.08–$28.80283KsharessoldAdded 239K shares (95.2%) · Q2 2025. Average closing price $32.04 · Price range $22.76–$36.95239KsharespurchasedSold 53K shares (10.7%) · Q3 2025. Average closing price $34.44 · Price range $30.93–$37.8153KsharessoldSold 168K shares (38.3%) · Q4 2025. Average closing price $26.92 · Price range $23.37–$35.45168KsharessoldSold 7K shares (2.7%) · Q1 2026. Average closing price $27.43 · Price range $23.59–$32.177Ksharessold← 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 Reduced −7K −$201K −2.7% 262K May 15, 2026
Q4 2025 Reduced −168K −$4.5M −38.3% 270K Feb 17, 2026
Q3 2025 Reduced −53K −$1.8M −10.7% 437K Nov 14, 2025
Q2 2025 Added +239K +$7.7M +95.2% 490K Aug 14, 2025
Q1 2025 Reduced −283K −$7.5M −53.0% 251K May 15, 2025
Q4 2024 Reduced −259K −$6.8M −32.7% 533K Feb 14, 2025
Q3 2024 Added +595K +$16M +302.2% 792K Nov 14, 2024
Q2 2024 Added +19K +$563K +10.5% 197K Aug 14, 2024
Q1 2024 Reduced −69K −$2.2M −27.9% 178K May 15, 2024
Q4 2023 Reduced −29K −$1.0M −10.5% 247K Feb 14, 2024
Q3 2023 Reduced −16K −$610K −5.4% 276K Nov 14, 2023
Q2 2023 Added +84K +$3.2M +40.1% 292K Aug 14, 2023
Q1 2023 Added +15K +$735K +7.8% 209K May 15, 2023
Q4 2022 Reduced −10K −$472K −4.7% 194K Feb 14, 2023
Q3 2022 Added +120K +$6.2M +145.9% 203K Nov 14, 2022
Q2 2022 Added +49K +$3.0M +147.3% 83K Aug 15, 2022
Q1 2022 Reduced −29K −$1.5M −46.6% 33K May 16, 2022
Q4 2021 Reduced −123K −$4.7M −66.2% 63K Feb 14, 2022
Q3 2021 Reduced −18K −$580K −8.9% 185K Nov 15, 2021
Q2 2021 Added +96K +$3.3M +89.5% 203K Aug 16, 2021
Q1 2021 First covered – – – 107K May 17, 2021
Data through Q1 2026 · filed May 15, 2026
21 grouped rows from 21 quarters

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Common questions

Does Joel Greenblatt own MOS?

Yes. As of Q1 2026, Joel Greenblatt disclosed 262K shares of MOS, worth $6.7M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Joel Greenblatt buy MOS?

Joel Greenblatt 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 Joel Greenblatt sell MOS?

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

How many shares of MOS does Joel Greenblatt own?

Joel Greenblatt disclosed 262K shares of MOS as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Joel Greenblatt pay for MOS?

Joel Greenblatt 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.