13F reference period
Q3 2026
Security Snapshot
Waterstone Financial, Inc. - Common Stock (WSBF) Institutional Ownership
CUSIP: 94188P101
13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026
Institutions Reporting
64
Shares (Excl. Options)
6.48M
Full value: 6,482,839 · shares · 30 Sep 2026Price
$19.66
The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.
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- Security type / class
- Equity / Common Stock
- Symbol
- WSBF on Nasdaq
- All holders as of 30 Sep 2026
- Q3 2026
- Total 13F shares
- 6,482,839
- Total 13F value
- $127,470,511
- Portfolio coverage rank
- 0%
- Share change
- +191,312
- Value change
- +$3,702,206
- Number of holders
- 64
- Shares outstanding
- 18,408,394
- SEC-reported price per share
- $19.87
- Insider filing price
- $19.87
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- WSBF - Waterstone Financial, Inc. - Common Stock is tracked under CUSIP 94188P101.
- 64 institutions reported positions in Q3 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 122 to 64 between Q2 2026 and Q3 2026.
- SEC-reported value moved from to
$202.54M
Full value: $202,542,312 · USD · 30 Jun 2026.$127.47M
Full value: $127,470,511 · USD · 30 Sep 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 64 institutions filings for Q3 2026.
Security key
94188P101
13F reference period
Q3 2026
13F holders
64
13D/G owners
2
CIK / CUSIP context first
Open Q3 2026 holders
WSBF full holder history
Waterstone Financial, Inc. SEC filings
Waterstone Financial, Inc. company facts
Waterstone Financial, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 94188P101:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
Security
WSBF
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 7.1% | $21,630,784 | 1,306,996 | BlackRock, Inc. | 31 Dec 2025 | |||
| VANGUARD GROUP INC | 4.9% | $11,982,340 | 942,749 | The Vanguard Group | 31 Dec 2024 |
As of 30 Sep 2026,
64
institutional investors reported holding
shares of
Waterstone Financial, Inc. - Common Stock (WSBF).
This represents
35%
of the company’s total
outstanding shares.
6.48M
Full value: 6,482,839 · shares · 30 Sep 202618.41M
Full value: 18,408,394 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
34%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | 7.7% | 1,421,942 | +0.28% | 0.01% | $27,955,932 |
| RENAISSANCE TECHNOLOGIES LLC | 5.4% | 989,771 | -5.9% | 0.03% | $19,458,898 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.6% | 663,684 | +3.5% | 0% | $13,048,027 |
| AMERICAN CENTURY COMPANIES INC | 2.4% | 435,328 | +27% | 0% | $8,558,558 |
| STATE STREET CORP | 2.1% | 391,682 | -1.7% | 0% | $7,700,468 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.1% | 388,225 | -0.07% | 0% | $7,633,717 |
| MORGAN STANLEY | 1.4% | 257,322 | +30% | 0% | $5,058,964 |
| Quantinno Capital Management LP | 1.3% | 240,857 | +42% | 0% | $4,735,249 |
| CSM Advisors, LLC | 1.1% | 204,895 | -7.3% | 0.09% | $4,028,000 |
| Qube Research & Technologies Ltd | 0.93% | 171,313 | +44% | 0% | $3,368,014 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.9% | 166,117 | -0.59% | 0% | $3,265,860 |
| Empowered Funds, LLC | 0.82% | 150,900 | +31% | 0.01% | $2,966,694 |
| VANGUARD FIDUCIARY TRUST CO | 0.59% | 108,486 | +12% | 0% | $2,132,835 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 0.56% | 103,537 | +1.6% | 0% | $2,035,537 |
| DONALD SMITH & CO., INC. | 0.44% | 80,620 | -51% | 0.03% | $1,584,989 |
| FIRST TRUST ADVISORS LP | 0.43% | 80,068 | 0% | $1,574,136 | |
| RITHOLTZ WEALTH MANAGEMENT | 0.42% | 78,020 | +2.6% | 0.02% | $1,533,878 |
| MARTINGALE ASSET MANAGEMENT L P | 0.37% | 68,816 | +16% | 0.03% | $1,352,923 |
| JOHN G ULLMAN & ASSOCIATES INC | 0.32% | 59,582 | -0.28% | 0.15% | $1,171,382 |
| Teton Advisors, LLC | 0.3% | 56,000 | -5.1% | 0.72% | $1,100,960 |
| COMMONWEALTH EQUITY SERVICES, LLC | 0.25% | 45,949 | +146% | 0% | $903,360 |
| STRS OHIO | 0.23% | 43,000 | +25% | 0% | $845,380 |
| Fourthstone LLC | 0.18% | 33,281 | -66% | 0.16% | $654,304 |
| Invesco Ltd. | 0.15% | 26,822 | +54% | 0% | $527,321 |
| Mariner, LLC | 0.13% | 24,102 | +7.5% | 0% | $473,857 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
51
Headline period
Q3 2026
Rows shown
1-25 of 51
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 6,482,839 | $127,470,511 | +$3,702,206 | $19.66 | 64 |
| 2026 Q2 | 9,774,738 | $202,542,312 | +$8,001,346 | $20.73 | 122 |
| 2026 Q1 | 9,412,827 | $169,693,650 | +$4,316,768 | $18.03 | 120 |
| 2025 Q4 | 9,193,189 | $152,147,441 | +$806,609 | $16.55 | 109 |
| 2025 Q3 | 9,155,941 | $142,820,726 | -$2,387,605 | $15.60 | 98 |
| 2025 Q2 | 9,316,113 | $128,665,732 | -$2,519,573 | $13.81 | 92 |
| 2025 Q1 | 9,728,285 | $130,848,157 | -$355,864 | $13.45 | 93 |
| 2024 Q4 | 9,756,037 | $131,121,526 | -$2,895,292 | $13.44 | 90 |
| 2024 Q3 | 9,958,062 | $146,353,510 | +$771,649 | $14.70 | 86 |
| 2024 Q2 | 9,913,579 | $126,797,173 | -$2,393,091 | $12.79 | 80 |
| 2024 Q1 | 10,079,155 | $122,660,673 | -$2,929,653 | $12.17 | 82 |
| 2023 Q4 | 10,298,883 | $146,245,377 | -$803,714 | $14.20 | 84 |
| 2023 Q3 | 10,429,492 | $114,201,779 | -$10,773,051 | $10.95 | 90 |
| 2023 Q2 | 11,317,678 | $163,992,341 | -$7,576,845 | $14.49 | 92 |
| 2023 Q1 | 11,777,608 | $178,163,339 | -$3,088,259 | $15.13 | 100 |
| 2022 Q4 | 11,957,560 | $206,141,897 | -$1,698,405 | $17.24 | 105 |
| 2022 Q3 | 12,101,058 | $195,548,091 | -$8,250,771 | $16.16 | 98 |
| 2022 Q2 | 12,582,140 | $214,521,274 | -$16,121,782 | $17.05 | 93 |
| 2022 Q1 | 13,570,385 | $262,450,519 | -$8,228,836 | $19.34 | 109 |
| 2021 Q4 | 13,980,912 | $305,542,570 | -$7,708,578 | $21.86 | 106 |
| 2021 Q3 | 14,167,167 | $290,163,034 | +$202,705 | $20.49 | 107 |
| 2021 Q2 | 14,156,774 | $278,321,556 | -$4,265,460 | $19.66 | 100 |
| 2021 Q1 | 14,357,289 | $293,175,725 | -$1,570,292 | $20.42 | 104 |
| 2020 Q4 | 14,541,059 | $273,665,326 | -$11,645,874 | $18.82 | 103 |
| 2020 Q3 | 15,189,365 | $235,257,655 | -$9,886,275 | $15.49 | 97 |