Barrett Business Services, Inc.
US ˙ NasdaqGS ˙ US0684631080

SecurityBBSI / Barrett Business Services, Inc.
InstitutionShell Asset Management Co
Latest Disclosed Ownership4,046 shares
Latest Disclosed Value $ 179
Shell Asset Management Co reports 53.20% decrease in ownership of BBSI / Barrett Business Services, Inc.

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 4,046 shares of Barrett Business Services, Inc. (US:BBSI) valued at $179,319 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 8,645 shares of Barrett Business Services, Inc.. The current value of the position is $131,495 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2025-11-07 2025-09-30 13F BARRETT BUSINESS SVCS COM 068463108 4,046 -4,599 -53.20 0 0.0180
2025-07-23 2025-06-30 13F BARRETT BUSINESS SVCS COM 068463108 8,645 -1,433 -14.22 0 0.0124
2025-05-14 2025-03-31 13F BARRETT BUSINESS SVCS COM 068463108 10,078 -2,680 -21.01 0 0.0197
2025-02-14 2024-12-31 13F BARRETT BUSINESS SVCS COM 068463108 12,758 -17 -0.13 1 0.0242
2024-11-07 2024-09-30 13F BARRETT BUSINESS SVCS COM 068463108 12,775 -2,497 -16.35 0 0.0211
2024-07-25 2024-03-31 13F BARRETT BUSINESS SVCS COM 068463108 15,272 11,087 264.92 0 0.0228
2024-02-14 2023-12-31 13F BARRETT BUSINESS SVCS COM 068463108 4,185 -1,266 -23.23 0 0.0224
2023-11-08 2023-09-30 13F BARRETT BUSINESS SVCS COM 068463108 5,451 -95 -1.71 0 0.0203
2023-07-28 2023-06-30 13F BARRETT BUSINESS SVCS COM 068463108 5,546 -31 -0.56 0 0.0191
2023-05-15 2023-03-31 13F BARRETT BUSINESS SVCS COM 068463108 5,577 -19 -0.34 0 0.0205
2023-02-07 2022-12-31 13F BARRETT BUSINESS SVCS COM 068463108 5,596 -1,182 -17.44 1 -100.00 0.0229
2022-11-14 2022-09-30 13F BARRETT BUSINESS SVCS COM 068463108 6,778 -1,775 -20.75 529 -15.09 0.0206
2022-08-09 2022-06-30 13F BARRETT BUSINESS SVCS COM 068463108 8,553 14 0.16 623 -5.89 0.0184
2022-05-04 2022-03-31 13F BARRETT BUSINESS SVCS COM 068463108 8,539 -1,264 -12.89 662 -2.22 0.0156
2022-02-09 2021-12-31 13F BARRETT BUSINESS SVCS COM 068463108 9,803 -3,387 -25.68 677 -32.70 0.0139
2021-11-04 2021-09-30 13F BARRETT BUSINESS SVCS COM 068463108 13,190 -560 -4.07 1,006 0.80 0.0226
2021-08-12 2021-06-30 13F BARRETT BUSINESS SVCS COM 068463108 13,750 5,403 64.73 998 73.57 0.0193
2021-05-10 2021-03-31 13F BARRETT BUSINESS SVCS COM 068463108 8,347 -40 -0.48 575 0.52 0.0115
2021-02-16 2020-12-31 13F BARRETT BUSINESS SVCS COM 068463108 8,387 0 0.00 572 30.00 0.0118
2020-11-13 2020-09-30 13F BARRETT BUSINESS SVCS COM 068463108 8,387 0 0.00 440 -1.35 0.0102
2020-08-10 2020-06-30 13F BARRETT BUSINESS SVCS COM 068463108 8,387 -71 -0.84 446 33.13 0.0111
2020-05-11 2020-03-31 13F BARRETT BUSINESS SVCS COM 068463108 8,458 -130 -1.51 335 -56.89 0.0093
2020-02-13 2019-12-31 13F BARRETT BUSINESS SERVICES IN COM 068463108 8,588 -261 -2.95 777 -1.15 0.0167
2019-11-12 2019-09-30 13F BARRETT BUSINESS SERVICES IN COM 068463108 8,849 -76 -0.85 786 6.65 0.0179
2019-08-12 2019-06-30 13F BARRETT BUSINESS SERVICES IN COM 068463108 8,925 -204 -2.23 737 4.39 0.0163
2019-05-09 2019-03-31 13F BARRETT BUSINESS SERVICES IN COM 068463108 9,129 9,129 706 0.0156
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.