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Ken Griffin's Barrett Business Services, Inc. (BBSI) position

Yes: as of Q1 2026, Ken Griffin holds 32K shares of BBSI worth an amount we cannot price (0.0% of the disclosed portfolio). Last quarter the position was reduced by 58.9%. First disclosed Q2 2021.
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Current value
an amount we cannot price
Shares held
32K
% 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.

BBSI price vs Griffin's position

Dates
$39.5$40$40.5← Earlier —11 purchases, 6 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 −46K −58.9% 32K May 15, 2026
Q4 2025 Added +66K +557.8% 78K Feb 17, 2026
Q3 2025 Reduced −35K −74.7% 12K Nov 14, 2025
Q2 2025 New +47K 47K Aug 14, 2025
Q4 2024 Added +11K +852.3% 13K Feb 14, 2025
Q3 2024 Reduced −3K −65.1% 1K Nov 14, 2024
Q2 2024 Added +2K +156.8% 4K Aug 14, 2024
Q1 2024 Reduced −3K −67.9% 1K May 15, 2024
Q4 2023 Added +4K +664.8% 5K Feb 14, 2024
Q3 2023 New +610 610 Nov 14, 2023
Q4 2022 Added +3K +8.4% 40K Feb 14, 2023
Q3 2022 Reduced −6K −14.7% 37K Nov 14, 2022
Q2 2022 Reduced −150 −0.3% 43K Aug 15, 2022
Q1 2022 Added +15K +53.3% 43K May 16, 2022
Q4 2021 Added +14K +102.9% 28K Feb 14, 2022
Q3 2021 Added +9K +170.7% 14K Nov 15, 2021
Q2 2021 New +5K 5K Aug 16, 2021
Data through Q1 2026 · filed May 15, 2026
17 grouped rows from 17 quarters

More Griffin positions

Common questions

Does Ken Griffin own BBSI?

Yes. As of Q1 2026, Ken Griffin disclosed 32K shares of BBSI, 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 BBSI?

Ken Griffin first disclosed a BBSI 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 Ken Griffin sell BBSI?

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

How many shares of BBSI does Ken Griffin own?

Ken Griffin disclosed 32K shares of BBSI 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 BBSI?

Ken Griffin began building the BBSI 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.