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Ken Griffin's Cabaletta Bio, Inc. (CABA) position

Not anymore: Ken Griffin fully exited CABA in Q1 2026. The position peaked at an amount we cannot price in Q1 2021.
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Value at exit
an amount we cannot price
Shares at exit
34K
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.

CABA price vs Griffin's position

Dates
$2.65$2.7$2.75$2.8$2.85← Earlier —9 purchases, 7 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 Exited −34K −100.0% 0 May 15, 2026
Q4 2025 Reduced −672K −95.3% 34K Feb 17, 2026
Q3 2025 Reduced −983K −58.2% 705K Nov 14, 2025
Q2 2025 Added +1.7M +482,180.0% 1.7M Aug 14, 2025
Q1 2025 New +350 350 May 15, 2025
Q3 2024 Reduced −315K −98.6% 5K Nov 14, 2024
Q2 2024 Added +317K +14,159.1% 320K Aug 14, 2024
Q1 2024 Reduced −32K −93.4% 2K May 15, 2024
Q4 2023 Added +31K +1,275.6% 34K Feb 14, 2024
Q3 2023 New +2K 2K Nov 14, 2023
Q1 2023 Reduced −52K −71.0% 21K May 15, 2023
Q4 2022 New +73K 73K Feb 14, 2023
Q2 2022 Reduced −221K −15.0% 1.3M Aug 15, 2022
Q1 2022 Reduced −25K −1.6% 1.5M May 16, 2022
Q4 2021 Added +940K +168.0% 1.5M Feb 14, 2022
Q3 2021 Added +522K +1,398.6% 559K Nov 15, 2021
Q2 2021 Added +18K +98.0% 37K Aug 16, 2021
Q1 2021 First covered 19K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
18 grouped rows from 18 quarters

More Griffin positions

Common questions

Does Ken Griffin own CABA?

Not currently. Ken Griffin fully exited CABA in Q1 2026, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy CABA?

Ken Griffin held CABA 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 Ken Griffin sell CABA?

Yes. Ken Griffin reduced and then fully exited CABA by Q1 2026; 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 CABA does Ken Griffin own?

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

What price did Ken Griffin pay for CABA?

Ken Griffin began building the CABA 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.