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Ken Griffin's Franklin Street Properties Corp. (FSP) position

Yes: as of Q1 2026, Ken Griffin holds 112K shares of FSP worth an amount we cannot price (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
an amount we cannot price
Shares held
112K
% 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.

FSP price vs Griffin's position

Dates
$0.4$0.45$0.5← Earlier —10 purchases, 10 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 Reduced −398K −78.0% 112K May 15, 2026
Q4 2025 Added +115K +29.1% 510K Feb 17, 2026
Q3 2025 Added +118K +42.5% 395K Nov 14, 2025
Q2 2025 Added +158K +133.6% 277K Aug 14, 2025
Q1 2025 Added +5K +4.8% 119K May 15, 2025
Q4 2024 Reduced −220K −66.1% 113K Feb 14, 2025
Q3 2024 Reduced −439K −56.8% 334K Nov 14, 2024
Q2 2024 Added +248K +47.2% 773K Aug 14, 2024
Q1 2024 Reduced −43K −7.6% 525K May 15, 2024
Q4 2023 Added +15K +2.8% 568K Feb 14, 2024
Q3 2023 Reduced −71K −11.4% 552K Nov 14, 2023
Q2 2023 Reduced −316K −33.7% 623K Aug 14, 2023
Q1 2023 Added +659K +235.4% 939K May 15, 2023
Q4 2022 Reduced −36K −11.3% 280K Feb 14, 2023
Q3 2022 Reduced −76K −19.5% 316K Nov 14, 2022
Q2 2022 Reduced −83K −17.4% 392K Aug 15, 2022
Q1 2022 Added +82K +20.9% 475K May 16, 2022
Q4 2021 Added +183K +87.6% 393K Feb 14, 2022
Q3 2021 Added +189K +906.3% 209K Nov 15, 2021
Q2 2021 Reduced −893 −4.1% 21K Aug 16, 2021
Q1 2021 First covered 22K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
21 grouped rows from 21 quarters

More Griffin positions

Common questions

Does Ken Griffin own FSP?

Yes. As of Q1 2026, Ken Griffin disclosed 112K shares of FSP, worth an amount we cannot price. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy FSP?

Ken Griffin held FSP 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 FSP?

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

How many shares of FSP does Ken Griffin own?

Ken Griffin disclosed 112K shares of FSP as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for FSP?

Ken Griffin began building the FSP 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.