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Joel Greenblatt's Solid Power, Inc. (SLDP) position

Yes: as of Q1 2026, Joel Greenblatt holds 21K shares of SLDP worth $62K (0.0% of the disclosed portfolio). Last quarter the position was reduced by 66.1%. First disclosed Q3 2025.
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Current value
$62K
Shares held
21K
% of portfolio
0.0%
Est. average buy price (i)
$5.53
est. since Q4 2025
Quarter-end price
$3.00

Estimated trade prices

Average price in quarters with purchases
$3.77
Average prices in quarters with sales
  • Q1 2026: $4.03 (40K shares sold)

SLDP price vs Greenblatt's position

1Y 3Y 5Y MAX
Dates
$0.9$5$10$1520222023202420252026New position of 287K shares · Q3 2025. Average closing price $3.77 · Price range $2.20–$5.37287KsharespurchasedSold 40K shares (66.1%) · Q1 2026. Average closing price $4.03 · Price range $2.82–$5.7940Ksharessold
Average closing price · filing quarter
$4.03
Price range · filing quarter
$2.82 – $5.79
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Reduced −40K −$163K −66.1% 21K May 15, 2026
Q4 2025 First covered – – – 61K Feb 17, 2026
Q3 2025 New +287K +$1.1M – 287K Nov 14, 2025
Data through Q1 2026 · filed May 15, 2026
3 grouped rows from 3 quarters

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Common questions

Does Joel Greenblatt own SLDP?

Yes. As of Q1 2026, Joel Greenblatt disclosed 21K shares of SLDP, worth $62K. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Joel Greenblatt buy SLDP?

Joel Greenblatt first disclosed a SLDP position in Q3 2025; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Joel Greenblatt sell SLDP?

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

How many shares of SLDP does Joel Greenblatt own?

Joel Greenblatt disclosed 21K shares of SLDP 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 SLDP?

Joel Greenblatt began building the SLDP 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.