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Joel Greenblatt's Collegium Pharmaceutical, Inc. (COLL) position

Yes: as of Q1 2026, Joel Greenblatt holds 56K shares of COLL worth an amount we cannot price (0.0% of the disclosed portfolio). Last quarter the position was increased by 434.5%. First disclosed Q2 2021.
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Current value
an amount we cannot price
Shares held
56K
% of portfolio
0.0%
Quarter-end price
No quarter-end price available

Average buy price is hidden here because at least one covered purchase quarter has no usable local mean price.

COLL price vs Greenblatt's position

Dates
$34.5$35$35.5$36$36.5$37← Earlier —10 purchases, 2 sells
Average closing price · filing quarter
Price range · filing quarter

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +45K +434.5% 56K May 15, 2026
Q4 2025 Added +2K +27.1% 10K Feb 17, 2026
Q3 2025 New +8K 8K Nov 14, 2025
Q4 2024 Reduced −24K −46.1% 28K Feb 14, 2025
Q3 2024 Reduced −9K −15.2% 52K Nov 14, 2024
Q2 2024 Added +9K +17.2% 61K Aug 14, 2024
Q1 2024 Added +8K +16.9% 52K May 15, 2024
Q4 2023 Added +2K +4.4% 45K Feb 14, 2024
Q3 2023 Added +10K +32.3% 43K Nov 14, 2023
Q2 2023 Added +19K +140.9% 32K Aug 14, 2023
Q1 2023 New +13K 13K May 15, 2023
Q2 2021 New +11K 11K Aug 16, 2021
Data through Q1 2026 · filed May 15, 2026
12 grouped rows from 12 quarters

More Greenblatt positions

Common questions

Does Joel Greenblatt own COLL?

Yes. As of Q1 2026, Joel Greenblatt disclosed 56K shares of COLL, worth an amount we cannot price. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Joel Greenblatt buy COLL?

Joel Greenblatt first disclosed a COLL position in Q2 2021; 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 COLL?

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

How many shares of COLL does Joel Greenblatt own?

Joel Greenblatt disclosed 56K shares of COLL 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 COLL?

Joel Greenblatt began building the COLL 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.