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Of the 3 tracked institutions holding WSBK, 2 have a 3-year clone track record — 2 of them beat the S&P. Average holder's clone alpha: +7.1pt. It's a gauge of who owns the name, not just how many.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Among the 3 tracked institutional investors we monitor, WSBK (WINCHESTER BANCORP INC) is held with a combined value of $1.29M across 114,279 shares. The largest holder is VANGUARD GROUP INC with a position worth $749.64K. 2 funds increased their holdings. 1 fund reduced its position.
Total Institutional Value
$1.29M
Total Shares Held
114,279
Institutional Holders
3
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $749.64K | 0.00% | +3.7% |
| 2 | RENAISSANCE TECHNOLOGIES LLC | $393.70K | 0.00% | +17.0% |
| 3 | MILLENNIUM MANAGEMENT LLC | $146.60K | 0.00% | -28.2% |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of WSBK with a position worth $749.64K, representing 0.00% of their portfolio. In total, 3 institutional investors hold WSBK with a combined value of $1.29M.
Institutional investors hold $1.29M worth of WSBK stock across 3 positions. The largest institutional holder is VANGUARD GROUP INC with $749.64K in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For WSBK, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their WSBK positions.
Last Close
$12.99
2026-07-24
YTD
+24.5%
93% of 52-week range