Renaissance Technologies (RenTech)'s WSBK Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 31,000 shares of Winchester Bancorp, Inc. (WSBK) worth $393,700, representing 0.00% of the portfolio. First purchased in 2025-Q4, this recently established position has been held for 2 quarters.
Based on recent 13F filings, Renaissance Technologies (RenTech) has initiated a new position in WSBK, representing a fresh investment thesis on this company. Largest addition occurred in Q1 2026, adding 4,498 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Winchester Bancorp (WSBK) Holding Value Over Time
Track share changes against reported price movement
Quarterly Winchester Bancorp (WSBK) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +4,498 | Add 16.97% | 31,000 | $12.70 |
| Q4 2025 | +26,502 | New Buy | 26,502 | $10.45 |
Renaissance Technologies (RenTech)'s Winchester Bancorp Investment FAQs
Renaissance Technologies (RenTech) first purchased Winchester Bancorp, Inc. (WSBK) in Q4 2025, acquiring 26,502 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies (RenTech) has held Winchester Bancorp, Inc. (WSBK) for 2 quarters since Q4 2025.
Renaissance Technologies (RenTech)'s largest addition to Winchester Bancorp, Inc. (WSBK) was in Q4 2025, adding 26,502 shares worth $276,946.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 31,000 shares of Winchester Bancorp, Inc. (WSBK), valued at approximately $393,700.
As of the Q1 2026 filing, Winchester Bancorp, Inc. (WSBK) represents approximately 0.00% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Winchester Bancorp, Inc. (WSBK) was 31,000 shares, as reported at the end of Q1 2026.