Waterstone Financial, Inc.
DE ˙ DB ˙ US94188P1012
15,40 € ↑0,40 (2,67%)
2026-06-05
DEL PRIS
SecurityDE:47Z / Waterstone Financial, Inc.
InstitutionGoldman Sachs Group Inc
Latest Disclosed Ownership254,464 shares
Latest Disclosed Value $ 4,587,984
Goldman Sachs Group Inc reports 41.32% increase in ownership of 47Z / Waterstone Financial, Inc.

On May 15, 2026 - Goldman Sachs Group Inc filed a 13F-HR form disclosing ownership of 254,464 shares of Waterstone Financial, Inc. (DE:47Z) valued at $3,995,085 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 180,061 shares of Waterstone Financial, Inc.. This represents a change in shares of 41.32% during the quarter. The current value of the position is $3,918,746 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)
2026-05-15 2026-03-31 13F WATERSTONE FINL INC MD CMN 94188P101 254,464 74,403 41.32 4,588 53.93 0.0001
2026-02-10 2025-12-31 13F WATERSTONE FINL INC MD CMN 94188P101 180,061 8,807 5.14 2,980 11.57 0.0004
2025-11-14 2025-09-30 13F WATERSTONE FINL INC MD CMN 94188P101 171,254 48,197 39.17 2,672 57.21 0.0003
2025-08-14 2025-06-30 13F WATERSTONE FINL INC MD CMN 94188P101 123,057 17,309 16.37 1,699 19.48 0.0002
2025-06-27 2025-03-31 13F/A-2 WATERSTONE FINL INC MD CMN 94188P101 105,748 -12,067 -10.24 1,422 -10.17 0.0002
2025-05-16 2025-03-31 13F/A-1 WATERSTONE FINL INC MD CMN 94188P101 105,748 -12,067 1,422 0.0002
2025-05-09 2025-03-31 13F WATERSTONE FINL INC MD CMN 94188P101 105,748 -12,067 1,422 0.0000
2025-02-11 2024-12-31 13F WATERSTONE FINL INC MD CMN 94188P101 117,815 4,774 4.22 1,583 -4.70 0.0002
2024-11-14 2024-09-30 13F WATERSTONE FINL INC MD CMN 94188P101 113,041 -5,265 -4.45 1,662 9.78 0.0003
2024-08-13 2024-06-30 13F WATERSTONE FINL INC MD CMN 94188P101 118,306 29,185 32.75 1,513 39.58 0.0003
2024-05-15 2024-03-31 13F WATERSTONE FINL INC MD CMN 94188P101 89,121 -15,884 -15.13 1,085 -27.30 0.0002
2024-05-14 2023-12-31 13F/A-2 WATERSTONE FINL INC MD CMN 94188P101 105,005 10,430 11.03 1,491 44.06 0.0003
2024-03-01 2023-12-31 13F/A-1 WATERSTONE FINL INC MD CMN 94188P101 105,005 1,491
2024-02-13 2023-12-31 13F WATERSTONE FINL INC MD CMN 94188P101 105,005 10,430 1,491 0.0001
2024-05-15 2023-09-30 13F/A-1 WATERSTONE FINL INC MD CMN 94188P101 94,575 5,448 6.11 1,036 -19.83 0.0002
2023-11-14 2023-09-30 13F WATERSTONE FINL INC MD CMN 94188P101 94,575 5,448 1,036 0.0002
2024-05-14 2023-06-30 13F/A-1 WATERSTONE FINL INC MD CMN 94188P101 89,127 10,200 12.92 1,291 8.12 0.0003
2023-08-15 2023-06-30 13F WATERSTONE FINL INC MD CMN 94188P101 89,127 10,200 1,291 0.0003
2024-05-14 2023-03-31 13F/A-1 WATERSTONE FINL INC MD CMN 94188P101 78,927 -14,431 -15.46 1,194 -25.79 0.0003
2023-05-11 2023-03-31 13F WATERSTONE FINL INC MD CMN 94188P101 78,927 -14,431 1,194 0.0003
2024-05-14 2022-12-31 13F/A-1 WATERSTONE FINL INC MD CMN 94188P101 93,358 2,775 3.06 1,609 160,800.00 0.0004
2023-02-13 2022-12-31 13F WATERSTONE FINL INC MD CMN 94188P101 93,358 2,775 1,609 0.0004
2024-05-14 2022-09-30 13F/A-1 WATERSTONE FINL INC MD CMN 94188P101 90,583 18,521 25.70 1 0.00 0.0004
2022-11-14 2022-09-30 13F WATERSTONE FINL INC MD CMN 94188P101 90,583 18,521 1,464 0.0003
2024-05-14 2022-06-30 13F/A-2 WATERSTONE FINL INC MD CMN 94188P101 72,062 -4,516 -5.90 1 -99.93 0.0003
2022-08-18 2022-06-30 13F/A-1 WATERSTONE FINL INC MD CMN 94188P101 72,062 -4,516 1,228 0.0003
2022-08-15 2022-06-30 13F WATERSTONE FINL INC MD CMN 94188P101 72,062 -4,516 1,228 0.0001
2022-05-16 2022-03-31 13F WATERSTONE FINL INC MD CMN 94188P101 76,578 -44,668 -36.84 1,481 -44.11 0.0003
2022-02-17 2021-12-31 13F/A-1 WATERSTONE FINL INC MD CMN 94188P101 121,246 14,513 13.60 2,650 21.17 0.0005
2022-02-14 2021-12-31 13F WATERSTONE FINL INC MD CMN 94188P101 121,246 14,513 2,650 0.0002
2022-01-20 2021-09-30 13F/A-1 WATERSTONE FINL INC MD CMN 94188P101 106,733 19,569 22.45 2,187 27.67 0.0005
2021-11-10 2021-09-30 13F WATERSTONE FINL INC MD CMN 94188P101 106,733 19,569 2,187 0.0005
2021-08-13 2021-06-30 13F WATERSTONE FINL INC MD CMN 94188P101 87,164 19,728 29.25 1,713 24.40 0.0004
2021-05-17 2021-03-31 13F WATERSTONE FINL INC MD CMN 94188P101 67,436 -18,440 -21.47 1,377 -14.79 0.0003
2021-02-12 2020-12-31 13F WATERSTONE FINL INC MD CMN 94188P101 85,876 -38,162 -30.77 1,616 -15.92 0.0004
2020-11-13 2020-09-30 13F WATERSTONE FINL INC MD CMN 94188P101 124,038 -4 -0.00 1,922 4.51 0.0005
2020-08-12 2020-06-30 13F WATERSTONE FINL INC MD CMN 94188P101 124,042 24,975 25.21 1,839 27.71 0.0006
2020-05-15 2020-03-31 13F WATERSTONE FINL INC MD CMN 94188P101 99,067 1,414 1.45 1,440 -22.50 0.0005
2020-02-14 2019-12-31 13F WATERSTONE FINL INC MD CMN 94188P101 97,653 -63,780 -39.51 1,858 -33.00 0.0005
2019-11-14 2019-09-30 13F WATERSTONE FINL INC MD CMN 94188P101 161,433 100,448 164.71 2,773 166.38 0.0008
2019-08-14 2019-06-30 13F WATERSTONE FINL INC MD CMN 94188P101 60,985 28,931 90.26 1,041 97.53 0.0003
2019-05-15 2019-03-31 13F WATERSTONE FINL INC MD CMN 94188P101 32,054 32,054 527 0.0002
2018-11-14 2018-09-30 13F WATERSTONE FINL INC MD CMN 94188P101 0 -25,847 -100.00 0 -100.00
2018-08-14 2018-06-30 13F WATERSTONE FINL INC MD CMN 94188P101 25,847 12,902 99.67 441 96.88 0.0001
2018-05-15 2018-03-31 13F WATERSTONE FINL INC MD CMN 94188P101 12,945 -4,410 -25.41 224 -24.32 0.0001
2018-02-14 2017-12-31 13F WATERSTONE FINL INC MD CMN 94188P101 17,355 17,355 296 0.0001
2017-11-14 2017-09-30 13F WATERSTONE FINL INC MD CMN 94188P101 0 -21,073 -100.00 0 -100.00
2017-08-14 2017-06-30 13F WATERSTONE FINL INC MD CMN 94188P101 21,073 558 2.72 397 6.15 0.0001
2017-05-18 2017-03-31 13F/A-1 WATERSTONE FINL INC MD CMN 94188P101 20,515 -6,086 -22.88 374 -23.52 0.0001
2017-05-15 2017-03-31 13F WATERSTONE FINL INC MD CMN 94188P101 20,515 374
2017-02-14 2016-12-31 13F WATERSTONE FINL INC MD CMN 94188P101 26,601 -28,005 -51.29 489 -47.31 0.0001
2016-11-14 2016-09-30 13F WATERSTONE FINL INC MD CMN 94188P101 54,606 41,606 320.05 928 366.33 0.0003
2016-08-15 2016-06-30 13F WATERSTONE FINL INC MD CMN 94188P101 13,000 1,951 17.66 199 31.79 0.0001
2016-05-13 2016-03-31 13F WATERSTONE FINL INC MD CMN 94188P101 11,049 11,049 0.00 151 0.0000
2015-02-13 2014-12-31 13F WATERSTONE FINL INC MD CMN 94188P101 0 -18,002 -100.00 0 -100.00
2014-11-14 2014-09-30 13F WATERSTONE FINL INC MD CMN 94188P101 18,002 18,002 0.00 208 0.0001
2014-08-14 2014-06-30 13F WATERSTONE FINL INC MD CMN 94188P101 0 -18,883 -100.00 0 -100.00
2014-05-15 2014-03-31 13F WATERSTONE FINL INC MD CMN 94188P101 18,883 18,883 196 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.