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Joel Greenblatt's Ballard Power Systems Inc. (BLDP) position

Not anymore: Joel Greenblatt fully exited BLDP in Q4 2025. The position peaked at $319K in Q1 2021.
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Value at exit
$27K
Shares at exit
10K
Est. average buy price (i)
$1.37
Quarter-end price
$2.72

Estimated trade prices

Average price in quarters with purchases
$1.37
Average prices in quarters with sales
  • Q3 2025: $2.05 (20K shares sold)

BLDP price vs Greenblatt's position

1Y 3Y 5Y MAX
Dates
$1$5$10$15$2020222023202420252026New position of 14K shares · Q1 2025. Average closing price $1.41 · Price range $1.10–$1.9914KsharespurchasedAdded 16K shares (116.9%) · Q2 2025. Average closing price $1.34 · Price range $1.02–$1.7916KsharespurchasedSold 20K shares (67.0%) · Q3 2025. Average closing price $2.05 · Price range $1.61–$2.9920Ksharessold
Average closing price · filing quarter
$2.05
Price range · filing quarter
$1.61 – $2.99
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q4 2025 Exited −10K −$31K −100.0% 0 Feb 17, 2026
Q3 2025 Reduced −20K −$42K −67.0% 10K Nov 14, 2025
Q2 2025 Added +16K +$22K +116.9% 30K Aug 14, 2025
Q1 2025 New +14K +$20K – 14K May 15, 2025
Q1 2021 First covered – – – 13K May 17, 2021
Data through Q4 2025 · filed Feb 17, 2026
5 grouped rows from 5 quarters

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Common questions

Does Joel Greenblatt own BLDP?

Not currently. Joel Greenblatt fully exited BLDP in Q4 2025, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Joel Greenblatt buy BLDP?

Joel Greenblatt held BLDP 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 BLDP?

Yes. Joel Greenblatt reduced and then fully exited BLDP by Q4 2025; the reductions are in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of BLDP does Joel Greenblatt own?

None as of the latest filing: Joel Greenblatt has exited BLDP. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Joel Greenblatt pay for BLDP?

Joel Greenblatt's estimated average buy price for BLDP is $1.37, from quarter-average prices weighted by the shares added each quarter. 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.