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Joel Greenblatt's Repligen Corporation (RGEN) position

Yes: as of Q1 2026, Joel Greenblatt holds 29K shares of RGEN worth $3.4M (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
$3.4M
Shares held
29K
% of portfolio
0.0%
Est. average buy price
$141.24
est. since Q1 2021
Quarter-end price
$117.82

Estimated trade prices

Average price in quarters with purchases
$147.52
Average prices in quarters with sales
  • Q1 2026: $139.70 (22K shares sold)
  • Q4 2024: $143.40 (25K shares sold)
  • Q3 2023: $163.47 (12K shares sold)
  • Q1 2023: $178.42 (2K shares sold)
  • Q4 2022: $181.39 (687 shares sold)
  • Q3 2022: $210.87 (3K shares sold)
  • Q3 2021: $256.54 (769 shares sold)

RGEN price vs Greenblatt's position

1Y 3Y 5Y MAX
Dates
Added 20K shares (83.4%) · Q3 2025. Average closing price $121.47 · Price range $111.43–$134.0020KsharespurchasedAdded 7K shares (16.9%) · Q4 2025. Average closing price $156.63 · Price range $142.82–$171.767KsharespurchasedSold 22K shares (43.1%) · Q1 2026. Average closing price $139.70 · Price range $110.12–$172.2622Ksharessold← Earlier —10 purchases, 6 sells1001502002026
Average closing price · filing quarter
$139.70
Price range · filing quarter
$110.12 – $172.26
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Every quarterly change

Every quarterly change
Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Reduced· Q1 2026 −$3.0M
Quarter Q1 2026 Shares change −22K Δ Own −43.1% Shares held 29K Filing date May 15, 2026
Q1 2026 Reduced· Q1 2026 −22K −$3.0M −43.1% 29K May 15, 2026
Added· Q4 2025 +$1.1M
Quarter Q4 2025 Shares change +7K Δ Own +16.9% Shares held 51K Filing date Feb 17, 2026
Q4 2025 Added· Q4 2025 +7K +$1.1M +16.9% 51K Feb 17, 2026
Added· Q3 2025 +$2.4M
Quarter Q3 2025 Shares change +20K Δ Own +83.4% Shares held 43K Filing date Nov 14, 2025
Q3 2025 Added· Q3 2025 +20K +$2.4M +83.4% 43K Nov 14, 2025
Added· Q2 2025 +$79K
Quarter Q2 2025 Shares change +618 Δ Own +2.7% Shares held 24K Filing date Aug 14, 2025
Q2 2025 Added· Q2 2025 +618 +$79K +2.7% 24K Aug 14, 2025
Added· Q1 2025 +$2.5M
Quarter Q1 2025 Shares change +16K Δ Own +242.4% Shares held 23K Filing date May 15, 2025
Q1 2025 Added· Q1 2025 +16K +$2.5M +242.4% 23K May 15, 2025
Reduced· Q4 2024 −$3.5M
Quarter Q4 2024 Shares change −25K Δ Own −78.5% Shares held 7K Filing date Feb 14, 2025
Q4 2024 Reduced· Q4 2024 −25K −$3.5M −78.5% 7K Feb 14, 2025
Added· Q3 2024 +$1.9M
Quarter Q3 2024 Shares change +14K Δ Own +76.1% Shares held 31K Filing date Nov 14, 2024
Q3 2024 Added· Q3 2024 +14K +$1.9M +76.1% 31K Nov 14, 2024
Added· Q2 2024 +$2.0M
Quarter Q2 2024 Shares change +13K Δ Own +270.7% Shares held 18K Filing date Aug 14, 2024
Q2 2024 Added· Q2 2024 +13K +$2.0M +270.7% 18K Aug 14, 2024
Added· Q1 2024 +$6K
Quarter Q1 2024 Shares change +33 Δ Own +0.7% Shares held 5K Filing date May 15, 2024
Q1 2024 Added· Q1 2024 +33 +$6K +0.7% 5K May 15, 2024
Added· Q4 2023 +$27K
Quarter Q4 2023 Shares change +174 Δ Own +3.8% Shares held 5K Filing date Feb 14, 2024
Q4 2023 Added· Q4 2023 +174 +$27K +3.8% 5K Feb 14, 2024
Reduced· Q3 2023 −$2.0M
Quarter Q3 2023 Shares change −12K Δ Own −72.3% Shares held 5K Filing date Nov 14, 2023
Q3 2023 Reduced· Q3 2023 −12K −$2.0M −72.3% 5K Nov 14, 2023
Added· Q2 2023 +$1.8M
Quarter Q2 2023 Shares change +11K Δ Own +225.2% Shares held 17K Filing date Aug 14, 2023
Q2 2023 Added· Q2 2023 +11K +$1.8M +225.2% 17K Aug 14, 2023
Reduced· Q1 2023 −$375K
Quarter Q1 2023 Shares change −2K Δ Own −29.2% Shares held 5K Filing date May 15, 2023
Q1 2023 Reduced· Q1 2023 −2K −$375K −29.2% 5K May 15, 2023
Reduced· Q4 2022 −$125K
Quarter Q4 2022 Shares change −687 Δ Own −8.7% Shares held 7K Filing date Feb 14, 2023
Q4 2022 Reduced· Q4 2022 −687 −$125K −8.7% 7K Feb 14, 2023
Reduced· Q3 2022 −$644K
Quarter Q3 2022 Shares change −3K Δ Own −27.9% Shares held 8K Filing date Nov 14, 2022
Q3 2022 Reduced· Q3 2022 −3K −$644K −27.9% 8K Nov 14, 2022
Data through Q1 2026 · filed May 15, 2026
15 of 21

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Common questions

Does Joel Greenblatt own RGEN?

Yes. As of Q1 2026, Joel Greenblatt disclosed 29K shares of RGEN, worth $3.4M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Joel Greenblatt buy RGEN?

Joel Greenblatt held RGEN 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 RGEN?

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

How many shares of RGEN does Joel Greenblatt own?

Joel Greenblatt disclosed 29K shares of RGEN 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 RGEN?

Joel Greenblatt began building the RGEN 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.