Sound Financial Bancorp, Inc.
US ˙ NasdaqCM ˙ US83607A1007

SecuritySFBC / Sound Financial Bancorp, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership19,623 shares
Latest Disclosed Value $ 857,850
Dimensional Fund Advisors Lp ownership in SFBC / Sound Financial Bancorp, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 19,623 shares of Sound Financial Bancorp, Inc. (US:SFBC) valued at $857,721 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 19,623 shares of Sound Financial Bancorp, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $810,822 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)
2026-05-07 2026-03-31 13F SOUND FINL BANCORP COM 83607A100 19,623 0 0.00 858 0.12 0.0000
2026-02-12 2025-12-31 13F SOUND FINL BANCORP COM 83607A100 19,623 35 0.18 856 -5.10 0.0002
2025-11-12 2025-09-30 13F SOUND FINL BANCORP COM 83607A100 19,588 0 0.00 902 0.11 0.0002
2025-08-12 2025-06-30 13F SOUND FINL BANCORP COM 83607A100 19,588 1,160 6.29 901 -2.49 0.0002
2025-05-13 2025-03-31 13F SOUND FINL BANCORP COM 83607A100 18,428 412 2.29 924 -2.53 0.0002
2025-02-13 2024-12-31 13F SOUND FINL BANCORP COM 83607A100 18,016 435 2.47 949 0.85 0.0002
2024-11-07 2024-09-30 13F SOUND FINL BANCORP COM 83607A100 17,581 770 4.58 941 27.20 0.0002
2024-08-09 2024-06-30 13F SOUND FINL BANCORP COM 83607A100 16,811 1,122 7.15 739 17.30 0.0002
2024-05-10 2024-03-31 13F SOUND FINL BANCORP COM 83607A100 15,689 316 2.06 630 5.18 0.0002
2024-02-07 2023-12-31 13F SOUND FINL BANCORP COM 83607A100 15,373 538 3.63 600 9.91 0.0002
2023-11-09 2023-09-30 13F SOUND FINL BANCORP COM 83607A100 14,835 1,157 8.46 545 11.68 0.0002
2023-08-09 2023-06-30 13F SOUND FINL BANCORP COM 83607A100 13,678 597 4.56 489 0.83 0.0002
2023-05-12 2023-03-31 13F SOUND FINL BANCORP COM 83607A100 13,081 330 2.59 484 0.0002
2023-02-09 2022-12-31 13F SOUND FINL BANCORP COM 83607A100 12,751 0 0.00 1 -100.00 0.0002
2022-11-10 2022-09-30 13F SOUND FINL BANCORP COM 83607A100 12,751 1 0.01 517 6.82 0.0002
2022-08-12 2022-06-30 13F SOUND FINL BANCORP COM 83607A100 12,750 0 0.00 484 -0.41 0.0002
2022-05-13 2022-03-31 13F SOUND FINL BANCORP COM 83607A100 12,750 0 0.00 486 -13.37 0.0001
2022-02-09 2021-12-31 13F SOUND FINL BANCORP COM 83607A100 12,750 0 0.00 561 -2.26 0.0002
2021-11-12 2021-09-30 13F SOUND FINL BANCORP COM 83607A100 12,750 0 0.00 574 3.80 0.0002
2021-08-12 2021-06-30 13F SOUND FINL BANCORP COM 83607A100 12,750 100 0.79 553 4.93 0.0002
2021-05-14 2021-03-31 13F SOUND FINL BANCORP COM 83607A100 12,650 600 4.98 527 37.60 0.0002
2021-03-08 2020-12-31 13F/A-2 SOUND FINL BANCORP COM 83607A100 12,050 0 0.00 383 8.50 0.0001
2021-02-11 2020-12-31 13F SOUND FINL BANCORP COM 83607A100 12,050 0 383 138.3192
2020-11-12 2020-09-30 13F SOUND FINL BANCORP COM 83607A100 12,050 0 0.00 353 23.43 0.0001
2020-08-13 2020-06-30 13F SOUND FINL BANCORP COM 83607A100 12,050 0 0.00 286 11.28 0.0001
2020-05-14 2020-03-31 13F SOUND FINL BANCORP COM 83607A100 12,050 0 0.00 257 -40.78 0.0001
2020-02-14 2019-12-31 13F SOUND FINL BANCORP COM 83607A100 12,050 300 2.55 434 2.60 0.0002
2019-11-12 2019-09-30 13F SOUND FINL BANCORP COM 83607A100 11,750 300 2.62 423 8.18 0.0002
2019-08-13 2019-06-30 13F SOUND FINL BANCORP COM 83607A100 11,450 200 1.78 391 2.36 0.0002
2019-08-12 2019-03-31 13F/A-2 SOUND FINL BANCORP COM 83607A100 11,250 4,163 58.74 382 65.37 0.0002
2019-05-10 2019-03-31 13F SOUND FINL BANCORP COM 83607A100 11,250 4,163 382
2019-02-26 2018-12-31 13F/A-1 SOUND FINL BANCORP COM 83607A100 7,087 707 11.08 231 -8.33 0.0001
2019-02-13 2018-12-31 13F SOUND FINL BANCORP COM 83607A100 7,087 707 231
2018-11-13 2018-09-30 13F SOUND FINL BANCORP COM 83607A100 6,380 728 12.88 252 14.55 0.0001
2018-08-10 2018-06-30 13F SOUND FINL BANCORP COM 83607A100 5,652 5,652 220 0.0001
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.